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101. Fabrication of novel magnetic graphene oxide nanocomposites for selective adsorption of mercury from aqueous solutions

Author:
Hosseinzadeh, Hossein; Hosseinzadeh, Soleyman; Pashaei, Shahryar
Source:
Environmental science and pollution research international 2019 v.26 no.26 pp. 26807-26821
ISSN:
0944-1344
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; X-ray diffraction; adsorbents; adsorption; aqueous solutions; copolymerization; desorption; graphene oxide; ions; iron oxides; magnetism; mercury; models; nanocomposites; nanoparticles; nitrogen; pH; scanning electron microscopy; sorption isotherms; transmission electron microscopy; wastewater treatment;     Show all 22 Subjects
Abstract:
... In this work, a novel functionalized graphene oxide (GO) was used as an effective and selective adsorbent for removal of mercury (Hg²⁺). The magnetic nanocomposite adsorbent (MNA) based on GO was prepared through surface reversible addition–fragmentation chain transfer copolymerization of acrylic monomers and then the formation of Fe₃O₄ nanoparticles. The structure of MNAs was characterized by usi ...
DOI:
10.1007/s11356-019-05918-0

102. Fly ash based geopolymer for the adsorption of anionic surfactant from aqueous solution

Author:
Siyal, Ahmer Ali; Shamsuddin, M. Rashid; Rabat, Nurul Ekmi; Zulfiqar, Muhammad; Man, Zakaria; Low, Aaron
Source:
Journal of cleaner production 2019 v.229 pp. 232-243
ISSN:
0959-6526
Subject:
temperature,   etc   ; Gibbs free energy; activation energy; adsorbents; adsorption; anionic surfactants; aquatic animals; aqueous solutions; electrostatic interactions; endothermy; fly ash; health effects assessments; humans; models; pH; polymers; remediation; sodium dodecylbenzenesulfonate; sorption isotherms; surface area; water pollution; water resources;     Show all 22 Subjects
Abstract:
... Contamination of the world's water resources is a growing issue and its remediation requires the development of highly efficient, environmentally friendly and economical processes. Water contaminated with surfactants can cause detrimental health effects in humans and aquatic animals. Removing surfactants using adsorption is effective, simple and economical. This paper describes the development of ...
DOI:
10.1016/j.jclepro.2019.04.384

103. Adsorption of Cu(II) ion by a novel hordein electrospun nanofiber modified by β-cyclodextrin

Author:
Guan, Xiao; Lv, Xili; Huang, Kai; Li, Sen; Liu, Jing; Yan, Yan; Duan, Ruiqian
Source:
International journal of biological macromolecules 2019 v.135 pp. 691-697
ISSN:
0141-8130
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; X-ray diffraction; adsorption; aqueous solutions; beta-cyclodextrin; copper; heavy metals; hordein; metal ions; models; nanofibers; pH; scanning electron microscopy; sorption isotherms; water treatment;     Show all 16 Subjects
Abstract:
... In this study, hordein and hordein/N,N′-methylene bisacrylamide (MBA) nanofiber membranes were prepared by electrospinning technique. Then the fabricated membranes were modified with β-cyclodextrin (β-CD) to remove heavy metal ions from aqueous solution. The prepared nanofiber membranes were characterized by ATR-FTIR, SEM and XRD. The diameters of the nanofibers were determined to be around 600–91 ...
DOI:
10.1016/j.ijbiomac.2019.05.107

104. Functionalized cellulose with hydroxyethyl methacrylate and glycidyl methacrylate for metal ions and dye adsorption applications

Author:
Sharma, Rajeev Kr.; Kumar, Rajesh
Source:
International journal of biological macromolecules 2019 v.134 pp. 704-721
ISSN:
0141-8130
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; X-ray diffraction; adsorbents; adsorption; aqueous solutions; biodegradability; cellulose; composite polymers; copper; differential thermal analysis; free radicals; gentian violet; kinetics; lead; malachite green; metal ions; models; nickel; pH; polymerization; scanning electron microscopy; sorption isotherms; thermogravimetry;     Show all 24 Subjects
Abstract:
... Biodegradable functionalized cellulose based graft copolymers, Cell-g-HEMA and Cell-g-HEMA-co-GMA have been synthesized through free radical polymerization. The graft copolymers are used as sorbents for the removal of Ni(II), Cu(II) and Pb(II) ions, cationic (malachite green, crystal violet) and anionic (congo red) dyes as a function of adsorption time, temperature, pH of medium and concentration ...
DOI:
10.1016/j.ijbiomac.2019.05.059

105. Adsorption isotherm, kinetic and thermodynamic studies for the removal of Pb(II), Cd(II), Zn(II) and Cu(II) ions from aqueous solutions using Albizia lebbeck pods

Author:
Mustapha, S.; Shuaib, D. T.; Ndamitso, M. M.; Etsuyankpa, M. B.; Sumaila, A.; Mohammed, U. M.; Nasirudeen, M. B.
Source:
Applied water science 2019 v.9 no.6 pp. 142
ISSN:
2190-5487
Subject:
temperature,   etc   ; Albizia lebbeck; Fourier transform infrared spectroscopy; Gibbs free energy; X-ray diffraction; adsorbents; adsorption; agricultural wastes; aqueous solutions; cadmium; copper; endothermy; enthalpy; entropy; lead; metal ions; models; pH; particle size; pods; sorption isotherms; zinc;     Show all 22 Subjects
Abstract:
... Powdered adsorbent prepared from Albizia lebbeck pods as agricultural waste has been used for the adsorption of Pb(II), Cd(II), Zn(II) and Cu(II) ions from aqueous solutions. The powdered adsorbent was characterized by X-ray diffraction, Fourier transform infrared spectroscopy and Brunauer–Emmett–Teller. Effects of various parameters like contact time, solution pH, initial concentration dosage and ...
DOI:
10.1007/s13201-019-1021-x

106. Characterization of Cu and Cd biosorption by Pseudomonas sp. strain DC-B3 isolated from metal mine soil

Author:
Liang, Y.; Chen, J. Q.; Mei, J.; Chang, J. J.; Wang, Q. Y.; Wan, G. S.; Yin, B. Y.
Source:
International journal of environmental science and technology 2019 v.16 no.8 pp. 4035-4046
ISSN:
1735-1472
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; Pseudomonas; adsorption; aqueous solutions; bacteria; biomass; biosorbents; biosorption; cadmium; cell walls; copper; desorption; environmental factors; metal ions; mined soils; models; pH; phosphates; polluted soils; remediation; sorption isotherms;     Show all 22 Subjects
Abstract:
... A Cu- and Cd-resistant bacterial strain, DC-B3, was isolated from heavy metal-contaminated soils in a Cu mine, was identified as belonging to Pseudomonas sp. and biosorbed Cu²⁺ and Cd²⁺ from aqueous solution in the present study. Its biosorption properties as a function of environmental parameters such as contact time, initial concentration, pH, temperature and bacterial dosage were investigated t ...
DOI:
10.1007/s13762-018-2011-5

107. Synthesis of carbon nano-onion embedded metal–organic frameworks as an efficient adsorbent for cadmium ions: kinetic and thermodynamic studies

Author:
Hassan, Asaad F.
Source:
Environmental science and pollution research international 2019 v.26 no.23 pp. 24099-24111
ISSN:
0944-1344
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; X-ray diffraction; adsorbents; adsorption; aqueous solutions; cadmium; carboxylic acids; coordination polymers; copper; desorption; endothermy; energy-dispersive X-ray analysis; fullerene; garlic; ions; kinetics; models; nitrates; nitrogen; pH; sorption isotherms; thermodynamics; thermogravimetry; transmission electron microscopy;     Show all 25 Subjects
Abstract:
... Carbon nano-onions (CNOs), metal–organic frameworks (MOF-199), and carbon nano-onion embedded metal–organic frameworks (CMOF-199) were synthesized from garlic peels as a green source of carbon atoms while MOF-199 was prepared by solvothermal interaction between 1,3,5-benzenetricarboxylic acid and copper nitrate trihydrate. All the prepared solid materials were characterized by nitrogen adsorption/ ...
DOI:
10.1007/s11356-019-05581-5

108. The addition of a quaternary group in biopolymeric material increases the adsorptive capacity of Acid Blue 25 textile dye

Author:
Mendes, Carolina Rosai; Dilarri, Guilherme; Stradioto, Marcia Regina; de Faria, Adriano Uemura; Bidoia, Ederio Dino; Montagnolli, Renato Nallin
Source:
Environmental science and pollution research international 2019 v.26 no.23 pp. 24235-24246
ISSN:
0944-1344
Subject:
temperature,   etc   ; Daphnia similis; Fourier transform infrared spectroscopy; adsorbents; adsorption; binding sites; bioassays; chitosan; dyes; endothermy; fabrics; models; mortality; pH; rheological properties; scanning electron microscopy; sorption isotherms; textile mill effluents; thermodynamics; toxicity;     Show all 20 Subjects
Abstract:
... The quaternization of chitosan molecules creates materials with high adsorptive capacity towards textile dyes, which renders them capable of rapidly removing such dyes from a solution. In this study, a novel material was synthesized in bead form to adsorb the Acid Blue 25 textile dye. The adsorption isotherms, kinetics, and thermodynamics of this new material were investigated. The beads were furt ...
DOI:
10.1007/s11356-019-05652-7

109. Phytic acid doped polyaniline nanofibers: an advanced adsorbent for methylene blue dye

Author:
Duhan, Monika; Kaur, Raminder
Source:
Environmental nanotechnology, monitoring & management 2019 pp. 100248
ISSN:
2215-1532
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; Gibbs free energy; X-ray photoelectron spectroscopy; adsorbents; adsorption; enthalpy; kinetics; methylene blue; models; moieties; nanofibers; pH; phytic acid; polymerization; polymers; remediation; sorption isotherms; surface area; transmission electron microscopy; wastewater; zeta potential;     Show all 22 Subjects
Abstract:
... In this paper, the boosted methylene blue (MB) dye adsorption efficiency of polyaniline nanofibers doped with phytic acid (DPANI) is premeditated. DPANI was prepared by simple radical polymerization method using phytic acid (PA) solution. The synthesized doped nanofibers were characterized by different techniques to investigate the surface morphology (SEM), atomic scale structure (HRTEM), crystall ...
DOI:
10.1016/j.enmm.2019.100248

110. Acid-salt treated CoAl layered double hydroxide nanosheets with enhanced adsorption capacity of methyl orange dye

Author:
Chen, Yuxiang; Jing, Chuan; Zhang, Xing; Jiang, Debin; Liu, Xiaoying; Dong, Biqin; Feng, Li; Li, Shaochun; Zhang, Yuxin
Source:
Journal of colloid and interface science 2019 v.548 pp. 100-109
ISSN:
0021-9797
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; adsorbents; adsorption; anions; chlorides; coal; dyes; hot water treatment; ion exchange; kinetics; methyl orange; models; nanosheets; pH; scanning electron microscopy; sorption isotherms;     Show all 19 Subjects
Abstract:
... In this study, the ultra-thin CoAl layered double hydroxide (LDH) nanosheets with Cl− intercalation were prepared by a hydrothermal method following acid-salt treatment. The morphology, structure and composition information of CoAl LDHs were identified by a variety of characterization methods including SEM, XRD, XPS, FT-IR, and BET. The effects of initial adsorbent concentration, pH, competitive a ...
DOI:
10.1016/j.jcis.2019.03.107

111. Adsorption of reactive dyes on lignocellulosic waste; characterization, equilibrium, kinetic and thermodynamic studies

Author:
Değermenci, Gökçe Didar; Değermenci, Nejdet; Ayvaoğlu, Vefa; Durmaz, Ekrem; Çakır, Doğan; Akan, Emre
Source:
Journal of cleaner production 2019 v.225 pp. 1220-1229
ISSN:
0959-6526
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; adsorbents; adsorption; agricultural wastes; ash content; endothermy; enthalpy; entropy; kinetics; lignin; lignocellulose; models; pH; reactive dyes; scanning electron microscopy; sorption isotherms; styles (flowers); thermogravimetry;     Show all 19 Subjects
Abstract:
... This study researched the use of the easily obtainable and economic agricultural waste of corn silk (CS) for removal of Reactive Blue 19 (RB19) and Reactive Red 218 (RR218) dyes with the adsorption process. Lignin, holocellulose, α-cellulose, thermogravimetric analysis (TGA), fourier transform infrared (FTIR) and scanning electron microscopy (SEM) analyses were completed with the aim of determinin ...
DOI:
10.1016/j.jclepro.2019.03.260

112. Enhanced dye removal using polymeric nanocomposite through incorporation of Ag doped ZnO nanoparticles: Synthesis and characterization

Author:
A., Gouthaman; J., Auslin Asir; A., Gnanaprakasam; V.M., Sivakumar; M., Thirumarimurugan; Riswan Ahamed, Mohamed A.; Azarudeen, R.S.
Source:
Journal of hazardous materials 2019 v.373 pp. 493-503
ISSN:
0304-3894
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; X-ray diffraction; active sites; adsorbents; adsorption; dyes; effluents; kinetics; models; nanoparticles; nanosilver; pH; polyethylene glycol; polymer nanocomposites; scanning electron microscopy; silver; sorption isotherms; surface area; transmission electron microscopy; zinc oxide;     Show all 21 Subjects
Abstract:
... A facile method was approached to synthesize a new series of highly porous polyethylene glycol (PEG) and Ag-ZnO (AZO) grafted polyaniline (PANI) nanocomposites (PAPE/AZO) for investigation of the adsorption behavior of brilliant green dye (BG). The compositions of Ag (1, 3 and 5%) in AZO were varied to assess the influence of bimetallic oxide incorporation. The nanocomposites were characterized by ...
DOI:
10.1016/j.jhazmat.2019.03.105

113. Eco-friendly porous carboxymethyl cellulose/dextran sulfate composite beads as reusable and efficient adsorbents of cationic dye methylene blue

Author:
Benhalima, Tayeb; Ferfera-Harrar, Hafida
Source:
International journal of biological macromolecules 2019 v.132 pp. 126-141
ISSN:
0141-8130
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; adsorbents; adsorption; carboxymethylcellulose; desorption; dextran sulfate; endothermy; energy-dispersive X-ray analysis; gelation; hydrogels; methylene blue; models; pH; scanning electron microscopy; sodium dodecyl sulfate; sorption isotherms; thermodynamics; thermogravimetry; wastewater treatment;     Show all 20 Subjects
Abstract:
... Eco-friendly hydrogel composite beads based on crosslinked-carboxymethyl cellulose (CMC) and dextran sulfate (DS) embedded within network were prepared using ionotropic gelation in presence of sodium n-dodecyl sulfate (SDS) as pore-forming template. The milligels composites C/Dx were characterized by FTIR, SEM/EDX and TGA analyses. The composites exhibited porous structure and enhance in swelling ...
DOI:
10.1016/j.ijbiomac.2019.03.164

114. Cd(II) Removal by Novel Fabricated Ground Calcium Carbonate/Nano-TiO2 (GCC/TiO2) Composite from Aqueous Solution

Author:
Wang, Shanguang; Zhou, Dali; Zhou, Jiabei; Liu, Can; Xiao, Xiao; Song, Chengsheng
Source:
Water, air, and soil pollution 2019 v.230 no.7 pp. 147
ISSN:
0049-6979
Subject:
temperature,   etc   ; EDTA (chelating agent); Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; adsorbents; adsorption; aqueous solutions; cadmium; calcium; calcium carbonate; electrostatic interactions; heavy metals; ion exchange; ions; models; pH; scanning electron microscopy; sorption isotherms; titanium; titanium dioxide; toxicity; wastewater;     Show all 22 Subjects
Abstract:
... The heavy metal Cd(II) in wastewater is highly toxic to organisms and must be removed. In this work, an efficient Cd(II) adsorbent consisting of ground calcium carbonate (GCC) and nano-TiO₂ (GCC/TiO₂) was harvested through a facile two-step strategy. Firstly, GCC was immersed in titanium sol which prepared from titanium butoxide to form the precursor. Secondly, GCC/TiO₂ was obtained via hydrotherm ...
DOI:
10.1007/s11270-019-4205-y

115. Separation of crude oil from water using chitosan based hydrogel

Author:
Saruchi,; Kumar, Vaneet
Source:
Cellulose 2019 v.26 no.10 pp. 6229-6239
ISSN:
0969-0239
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; adsorbents; adsorption; aqueous solutions; cellulose; chemical structure; chitosan; differential thermal analysis; hydrogels; models; oils; pH; petroleum; scanning electron microscopy; sorption isotherms; thermal properties; thermogravimetry;     Show all 18 Subjects
Abstract:
... In the present work a novel chitosan-acrylamide based hydrogel was synthesized. Synthesized hydrogel was used for oil adsorption from aqueous solution. Different reaction parameters like adsorbent dosage, contact time, temperature and pH were optimized to obtained the maximum crude oil adsorption. The chemical structure and morphology of the synthesized hydrogel were studied using FTIR and SEM tec ...
DOI:
10.1007/s10570-019-02539-1

116. Adsorption of Pb²⁺ from aqueous solutions using Fe–Mn binary oxides-loaded biochar: kinetics, isotherm and thermodynamic studies

Author:
Zhang, Lianke; Liu, Xinyu; Huang, Xuemin; Wang, Weida; Sun, Peng; Li, Yumei
Source:
Environmental technology 2019 v.40 no.14 pp. 1853-1861
ISSN:
1479-487X
Subject:
temperature,   etc   ; X-ray diffraction; X-ray photoelectron spectroscopy; adsorbents; adsorption; aqueous solutions; biochar; chemical interactions; endothermy; energy-dispersive X-ray analysis; lead; models; pH; scanning electron microscopy; sorption isotherms; thermodynamics;     Show all 16 Subjects
Abstract:
... This study evaluated the removal of Pb²⁺ in aqueous solution using Fe–Mn binary oxides-loaded biochar (BFMs). The characteristics of BFM were obtained using a scanning electron microscopy, an energy dispersive spectrometer (EDS), Brunauer-Emmett-Teller, a X-ray diffraction (XRD), and a X-ray photoelectron spectroscopy (XPS). The effects of pH, adsorbent dose, contact time, initial Pb²⁺ concentrati ...
DOI:
10.1080/09593330.2018.1432693

117. Removal of antibiotics from aqueous solution by using magnetic Fe3O4/red mud-nanoparticles

Author:
Aydin, Senar; Aydin, Mehmet Emin; Beduk, Fatma; Ulvi, Arzu
Source:
The Science of the total environment 2019 v.670 pp. 539-546
ISSN:
0048-9697
Subject:
temperature,   etc   ; adsorbents; adsorption; antibiotics; aqueous solutions; ciprofloxacin; crystal structure; iron; iron oxides; kinetics; leaching; magnetic materials; magnetic properties; magnetism; models; nanoparticles; pH; sorption isotherms; surface area; thermal stability; wastewater;     Show all 21 Subjects
Abstract:
... In this study, the availability of magnetically separable Fe3O4-red mud nanoparticles (Fe3O4-RM-NPs) for the removal of antibiotics from wastewater was investigated. Disadvantages of red mud and Fe3O4 because of difficult separation from aqueous media, agglomeration, and iron leaching were overcome by combining these two materials. After examinating adsorption capability of magnetic Fe3O4-RM-NPs f ...
DOI:
10.1016/j.scitotenv.2019.03.205

118. Facile fabrication of core–shell/bead-like ethylenediamine-functionalized Al-pillared montmorillonite/calcium alginate for As(V) ion adsorption

Author:
Song, Yongcun; Wang, Songyan; Yang, Li-Ye; Yu, Di; Wang, Yang-Guang; Ouyang, Xiao-kun
Source:
International journal of biological macromolecules 2019 v.131 pp. 971-979
ISSN:
0141-8130
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; adsorption; arsenic; biological resistance; calcium alginate; cross-linking reagents; ethylenediamines; glutaraldehyde; kinetics; microparticles; models; montmorillonite; pH; scanning electron microscopy; sodium alginate; sorption isotherms;     Show all 19 Subjects
Abstract:
... In this study, a MT(Al)/calcium alginate [MT(Al)@CA] microsphere structure was prepared using sodium alginate (SA) and MT(Al). In order to achieve [MT(Al)@CA] microspheres with a high stability and chemical resistance, glutaraldehyde was used as the crosslinking agent to graft the microspheres and ethylenediamine (ED) into a new type of ED-functionalized MT(Al)@CA microsphere structure similar to ...
DOI:
10.1016/j.ijbiomac.2019.03.172

119. Facile assembly of three-dimensional cylindrical egg white embedded graphene oxide composite with good reusability for aqueous adsorption of rare earth elements

Author:
Xu, Xia; Zou, Jiao; Zhao, Xiao-Ru; Jiang, Xin-Yu; Jiao, Fei-Peng; Yu, Jin-Gang; Liu, Qi; Teng, Jie
Source:
Colloids and surfaces 2019 v.570 pp. 127-140
ISSN:
0927-7757
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; Raman spectroscopy; X-ray photoelectron spectroscopy; adsorption; aqueous solutions; egg albumen; endothermy; erbium; graphene oxide; lanthanum; microstructure; models; neodymium; pH; porosity; river water; scanning electron microscopy; sorption isotherms; tap water; thermodynamics; thermogravimetry; ytterbium; yttrium;     Show all 24 Subjects
Abstract:
... A porous three-dimensional (3D) macrostructure was facilely fabricated by embedding egg white (EW) into graphene oxide (GO) (CEG) under hydrothermal condition. The microstructure, pore size distribution and surface compositions of CEG were characterized by scanning electron microscopy (SEM), Brunauer-Emmett-Teller (BET) method, X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, thermograv ...
DOI:
10.1016/j.colsurfa.2019.03.022

120. Removal of Pb(Ⅱ) from aqueous solution by hydroxyapatite/carbon composite: preparation and adsorption behavior

Author:
Long, Yunchuan; Jiang, Juan; Hu, Jing; Hu, Xuejun; Yang, Qing; Zhou, Shaoqi
Source:
Colloids and surfaces 2019
ISSN:
0927-7757
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; X-ray diffraction; activated carbon; adsorbents; adsorption; ammonium compounds; aqueous solutions; calcium chloride; heat production; hydroxyapatite; ions; kinetics; lead; models; pH; scanning electron microscopy; sorption isotherms;     Show all 18 Subjects
Abstract:
... The present work exhibits the adsorptive potential of hydroxyapatite coated activated carbon (C-HAP) composite for the removal of Pb(II) from aqueous solution. The composite was prepared by co-precipitating CaCl2 and activated carbon mixture with (NH4)2HPO4 solution. The adsorbent was characterized by Scanning electron microscopy (SEM), Fourier infrared spectroscopy (FTIR), X-ray diffraction (XRD) ...
DOI:
10.1016/j.colsurfa.2019.06.011

121. Novel Al₂O₃/GO/halloysite nanotube composite for sequestration of anionic and cationic dyes

Author:
Barakat, M. A.; Kumar, Rajeev; Balkhyour, M.; Taleb, Md. Abu
Source:
RSC advances 2019 v.9 no.24 pp. 13916-13926
ISSN:
2046-2069
Subject:
temperature,   etc   ; 2-chlorophenol; X-ray diffraction; X-ray photoelectron spectroscopy; adsorbents; adsorption; aluminum oxide; copper; halloysite; heat production; heavy metals; methylene blue; models; nanocomposites; nanotubes; oxytetracycline; pH; pollutants; scanning electron microscopy; sorption isotherms; transmission electron microscopy; wastewater;     Show all 22 Subjects
Abstract:
... In this study, an Al₂O₃/graphene oxide/halloysite nanotube (Al₂O₃/GO/HNT) nanocomposite has been synthesized and used as an adsorbent for the sequestration of cationic methylene blue (MB) and anionic congo red (CR) dyes from wastewater. The properties of the synthesized Al₂O₃/GO/HNT were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy ...
DOI:
10.1039/c9ra02246e

122. Removal of malachite green from aqueous solutions using a modified chitosan composite

Author:
Arumugam, T.K.; Krishnamoorthy, P.; Rajagopalan, N.R.; Nanthini, S.; Vasudevan, D.
Source:
International journal of biological macromolecules 2019 v.128 pp. 655-664
ISSN:
0141-8130
Subject:
temperature,   etc   ; X-ray diffraction; adsorbents; adsorption; anionic surfactants; aqueous solutions; carbon; chitosan; coir; infrared spectroscopy; malachite green; models; pH; pith; scanning electron microscopy; sodium dodecyl sulfate; sorption isotherms; toxicity; wastewater;     Show all 19 Subjects
Abstract:
... The synthesis of a novel composite adsorbent prepared from coir pith activated carbon (CPAC), chitosan and sodium dodecyl sulphate (SDS, an anionic surfactant) is reported. The characterisation of the composite was done using SEM, XRD, UV–visible and IR spectroscopy studies. The effectiveness of the composite was made for the removal of a toxic cationic dye, malachite green (MG) from waste water b ...
DOI:
10.1016/j.ijbiomac.2019.01.185

123. Efficient removal of methyl blue from aqueous solution by using poly(4-vinylpyridine)–graphene oxide–Fe3O4 magnetic nanocomposites

Author:
Li, Yuanshuai; Lu, Haijun; Wang, Yuting; Zhao, Yu; Li, Xiaoli
Source:
Journal of materials science 2019 v.54 no.10 pp. 7603-7616
ISSN:
0022-2461
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; adsorbents; adsorption; aqueous solutions; ionic strength; kinetics; magnetic properties; magnetic separation; magnetism; models; nanocomposites; nanohybrids; pH; scanning electron microscopy; sorption isotherms; surface area; transmission electron microscopy;     Show all 20 Subjects
Abstract:
... The poly(4-vinylpyridine)–graphene oxide–Fe₃O₄ magnetic nanohybrid (GO-Fe₃O₄@P4VP) was prepared and used as a novel nanoadsorbent to efficiently remove methyl blue (MB) from aqueous solution. The GO-Fe₃O₄@P4VP was characterized with scanning electron microscopy, transmission electron microscopy, elemental analysis, BET surface area, X-ray diffraction, X-ray photoelectron spectroscopy, Fourier tran ...
DOI:
10.1007/s10853-019-03441-8

124. Highly Efficient Removal of Lead Ions from Aqueous Solutions Using Chitosan/Rice Husk Ash/Nano Alumina with a Focus on Optimization by Response Surface Methodology: Isotherm, Kinetic, and Thermodynamic Studies

Author:
Fooladgar, Shiva; Teimouri, Abbas; Ghanavati Nasab, Shima
Source:
Journal of polymers and the environment 2019 v.27 no.5 pp. 1025-1042
ISSN:
1566-2543
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; X-ray diffraction; adsorbents; adsorption; aluminum oxide; aqueous solutions; chitosan; heat production; husk ash; ions; lead; models; nanocomposites; pH; response surface methodology; rice hulls; scanning electron microscopy; sorption isotherms;     Show all 19 Subjects
Abstract:
... In the present study, an adsorbent named chitosan/rice husk ash/nano-γ alumina was prepared and used for the removal of lead ions from aqueous solutions. It was characterized by FESEM, FTIR, XRD, and BET. The important and interactive effects of some considered parameters, such as the initial lead ion concentration, pH, adsorbent mass and contact time, were estimated and optimized by using the cen ...
DOI:
10.1007/s10924-019-01385-3

125. Removal of Pb (II) from aqueous solution by sulfur-functionalized walnut shell

Author:
Lu, Xiu-guo; Guo, Yi-ting
Source:
Environmental science and pollution research international 2019 v.26 no.13 pp. 12776-12787
ISSN:
0944-1344
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; adsorbents; adsorption; aqueous solutions; biosorbents; heat production; heavy metals; ion exchange; kinetics; lead; models; moieties; pH; scanning electron microscopy; sorption isotherms; walnut hulls;     Show all 18 Subjects
Abstract:
... Heavy metal lead poses a great threat to organisms and the environment; the removal of lead has drawn more and more attention in recent years. In this paper, the sulfur-containing functional group was grafted onto the walnut shell with xanthate to synthesize a low-cost biosorbent (SWM) for the removal of lead in water. The synthesized adsorbent was characterized by Fourier-transform infrared spect ...
DOI:
10.1007/s11356-019-04753-7

126. Non-competitive and competitive adsorption of Cd2+, Ni2+, and Cu2+ by biogenic vaterite

Author:
Liu, Renlu; Lian, Bin
Source:
The Science of the total environment 2019 v.659 pp. 122-130
ISSN:
0048-9697
Subject:
temperature,   etc   ; Bacillus subtilis; Fourier transform infrared spectroscopy; X-ray diffraction; adsorption; aqueous solutions; cadmium; copper; energy-dispersive X-ray analysis; heavy metals; kinetics; metal ions; models; nickel; pH; scanning electron microscopy; sorption isotherms; surface area; vaterite;     Show all 19 Subjects
Abstract:
... Ubiquitous bio-minerals exert significant effects on the migration and transformation of metal ions in the environment, however, research into the adsorption of heavy metals by biogenic vaterite (BV) has rarely been reported. The aim of our research was to evaluate the removal effects of Cd2+, Ni2+, and Cu2+ in single and multi-metal ion aqueous solutions using BV induced by Bacillus subtilis. The ...
DOI:
10.1016/j.scitotenv.2018.12.199

127. Carboxymethyl cellulose supported magnetic graphene oxide composites by plasma induced technique and their highly efficient removal of uranium ions

Author:
Zong, Pengfei; Cao, Duanlin; Cheng, Yuan; Wang, Shoufang; Zhang, Jinsong; Guo, Zhiqiang; Hayat, Tasawar; Alharbi, Njud S.; He, Chaohui
Source:
Cellulose 2019 v.26 no.6 pp. 4039-4060
ISSN:
0969-0239
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; X-ray diffraction; adsorbents; carboxymethylcellulose; graphene oxide; heavy metals; magnetism; metal ions; models; pH; radionuclides; remediation; scanning electron microscopy; sorption; sorption isotherms; thermogravimetry; transmission electron microscopy; uranium; wastewater;     Show all 20 Subjects
Abstract:
... In recent years, hazardous radionuclides and heavy metal ions contaminations in wastewaters have caused serious harm to the public and environment. Thus the application of remediation technology is more challenging. Herein, carboxymethyl cellulose supported magnetic graphene oxide composites (CMC/MGOs) are successfully synthesized using novel low temperature plasma technique. The SEM, TEM, XRD, FT ...
DOI:
10.1007/s10570-019-02358-4

128. Polyaniline/Tectona grandis sawdust: A novel composite for efficient decontamination of synthetically polluted water containing crystal violet dye

Author:
Mashkoor, Fouzia; Nasar, Abu
Source:
Groundwater for sustainable development 2019 v.8 pp. 390-401
ISSN:
2352-801X
Subject:
temperature,   etc   ; Tectona grandis; acetic acid; adsorbents; adsorption; decontamination; desorption; endothermy; entropy; gentian violet; groundwater; hydrochloric acid; kinetics; models; pH; polymers; sawdust; sodium chloride; sodium hydroxide; sorption isotherms; sustainable development; water pollution;     Show all 22 Subjects
Abstract:
... The present study comprises the synthesis of polyaniline/Tectona grandis sawdust (PANI/TGSd) composite and its utilization for the adsorptive treatment of synthetically polluted water containing crystal violet (CV) dye. The batch adsorption experiments were carried out to optimize the different experimental parameters such as adsorbent-adsorbate contact time, initial adsorbate concentration, adsor ...
DOI:
10.1016/j.gsd.2018.12.008

129. Remediation of manganese in mine impacted water by clay/manganese oxide hybrid adsorbent: equilibrium, kinetics and thermodynamic studies

Author:
Muliwa, A. M.; Onyango, M. S.; Maity, A.; Ochieng, A.
Source:
International journal of environmental science and technology 2019 v.16 no.4 pp. 1985-1998
ISSN:
1735-1472
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; activation energy; adsorbents; adsorption; anions; clay; endothermy; ion exchange; manganese; manganese oxides; models; oxidation; pH; remediation; scanning electron microscopy; sorption isotherms;     Show all 19 Subjects
Abstract:
... The present study investigated the potential of clay/manganese oxide (CMnO) hybrid adsorbent for the removal of manganese (Mn²⁺) from mine impacted water (MIW). The adsorbent was characterised by X-ray diffraction, Fourier transform infra-red (FT-IR), scanning electron microscopy (SEM), Brunauer–Emmet–Teller and X-ray photoelectron spectroscopy (XPS) techniques. The equilibrium sorption capacity w ...
DOI:
10.1007/s13762-018-1817-5

130. Synthesis of sustainable mesoporous treated fish waste as adsorbent for copper removal

Author:
El Haouti, R.; Anfar, Z.; Chennah, A.; Amaterz, E.; Zbair, M.; El Alem, N.; Benlhachemi, A.; Ezahri, M.
Source:
Groundwater for sustainable development 2019 v.8 pp. 1-9
ISSN:
2352-801X
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; adsorbents; adsorption; aqueous solutions; chemical composition; copper; cost effectiveness; differential thermal analysis; energy-dispersive X-ray analysis; fish waste; groundwater; models; pH; porous media; scanning electron microscopy; sorption isotherms; sustainable development; thermogravimetry; wastewater;     Show all 20 Subjects
Abstract:
... Mesoporous Treated Fish waste obtained at a temperature of 600 °C was investigated as a sustainable and cost-effective material for copper (II) removal in aqueous solution. The structural and micro structural study and the chemical composition of our elaborated material were realized by BET, SEM-EDS, FTIR, TGA and DTA. Several adsorbent effects have been optimized to have; adsorbent dose, contact ...
DOI:
10.1016/j.gsd.2018.08.004

131. Facile Fabrication of ZIF-8/Calcium Alginate Microparticles for Highly Efficient Adsorption of Pb(II) from Aqueous Solutions

Author:
Song, Yongcun; Wang, Nan; Yang, Li-ye; Wang, Yang−guang; Yu, Di; Ouyang, Xiao-kun
Source:
Industrial & engineering chemistry process design and development 2019 v.58 no.16 pp. 6394-6401
ISSN:
1520-5045
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; adsorbents; adsorption; aqueous solutions; coordination polymers; endothermy; kinetics; lead; microparticles; models; pH; process design; scanning electron microscopy; sodium alginate; sorption isotherms;     Show all 18 Subjects
Abstract:
... Metal–organic frameworks (MOFs) have received special attention from scientists owing to their excellent adsorption performance. However, the difficulty in separating MOFs from adsorbed metals following use has limited their application. A zeolitic imidazole-based MOF with broad applicability for sorption of Pb(II) is examined. In this work, a novel adsorbent employing ZIF-8/calcium alginate micro ...
DOI:
10.1021/acs.iecr.8b05879

132. Adsorptive removal of patulin from apple juice via sulfhydryl-terminated magnetic bead-based separation

Author:
Bayraç, Ceren; Camızcı, Gülnur
Source:
Journal of hazardous materials 2019 v.366 pp. 413-422
ISSN:
0304-3894
Subject:
temperature,   etc   ; Penicillium; adsorption; apple juice; apples; aqueous solutions; brix; carcinogens; color; food safety; fruits; iron oxides; kinetics; magnetism; models; pH; patulin; silica; sorbents; sorption isotherms; sugars; thermodynamics; titratable acidity;     Show all 23 Subjects
Abstract:
... Patulin is a naturally produced toxin having potential carcinogenic properties. It is mainly produced by species of Penicillium growing on fruits, especially on apples. Detoxification of patulin, therefore, is very important for providing food safety. In this study, sulfhydryl-terminated, silica coated iron oxide beads were investigated as a multi-use sorbents for effective recovery of patulin fro ...
DOI:
10.1016/j.jhazmat.2018.12.001

133. Study on adsorption of tetracycline by Cu-immobilized alginate adsorbent from water environment

Author:
Zhang, Xiaonuo; Lin, Xiaoyan; He, Yu; Chen, Yan; Luo, Xuegang; Shang, Ran
Source:
International journal of biological macromolecules 2019 v.124 pp. 418-428
ISSN:
0141-8130
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; adsorbents; adsorption; alginates; cations; endothermy; energy-dispersive X-ray analysis; hydrogen bonding; models; pH; pollution; scanning electron microscopy; sol-gel processing; sorption isotherms; tetracycline; thermodynamics; wastewater;     Show all 19 Subjects
Abstract:
... Widespread concern had been given raise to the pollution of antibiotics including tetracyclines in water environment in recent years. A novel Cu-immobilized alginate adsorbent had been synthesized successfully through a facile fabrication way called sol-gel method, and its adsorption performance had been investigated for the tetracycline removal at various conditions, including the pH, temperature ...
DOI:
10.1016/j.ijbiomac.2018.11.218

134. Biosorption of Ni(II) ions from aqueous solution using modified Aloe barbadensis Miller leaf powder

Author:
Gupta, Shweta; Sharma, S.K.; Kumar, Arinjay
Source:
Water Science and Engineering 2019 v.12 no.1 pp. 27-36
ISSN:
1674-2370
Subject:
temperature,   etc   ; Aloe vera; Fourier transform infrared spectroscopy; aqueous solutions; biosorbents; biosorption; functional properties; ions; kinetics; leaves; models; nickel; pH; probability; scanning electron microscopy; sorption isotherms; surface area; zeta potential;     Show all 18 Subjects
Abstract:
... This study aimed to investigate the biosorption potential of Na2CO3-modified Aloe barbadensis Miller (Aloe vera) leaf (MABL) powder for removal of Ni(II) ions from a synthetic aqueous solution. Effects of various process parameters (pH, equilibrium time, and temperature) were investigated in order to optimize the biosorptive removal. The maximum biosorption capacity of MABL was observed to be 28.9 ...
DOI:
10.1016/j.wse.2019.04.003

135. Preparation, characterization and performance of an electrospun carbon nanofiber mat applied in hexavalent chromium removal from aqueous solution

Author:
Yuan, Zhihua; Cheng, Xiaoxia; Zhong, Lubin; Wu, Renxiang; Zheng, Yuming
Source:
Journal of environmental sciences (China) 2019 v.77 pp. 75-84
ISSN:
1001-0742
Subject:
temperature,   etc   ; X-ray photoelectron spectroscopy; adsorption; aqueous solutions; carbon nanofibers; carbonization; carcinogens; chromium; electrostatic interactions; human health; models; mutagens; oxyanions; pH; polyacrylonitrile; redox reactions; scanning electron microscopy; sodium hydroxide; sorption isotherms; titration; toxicity; water purification;     Show all 22 Subjects
Abstract:
... Hexavalent chromium, Cr(VI), a highly toxic oxyanion known as a carcinogen and mutagen, is an issue of concern due to its adverse impact on human health. Therefore, development of effective technologies and/or materials for Cr(VI) removal from water has been of great interest for researchers. In this study, an electrospun carbon nanofiber (CNF) mat was prepared via electrospinning polyacrylonitril ...
DOI:
10.1016/j.jes.2018.06.016

136. Study of various diameter and functionality of TEMPO-oxidized cellulose nanofibers on paraquat adsorptions

Author:
Huang, Chih-Feng; Tu, Cheng-Wei; Lee, Rong-Ho; Yang, Cheng-Han; Hung, Wei-Chen; Andrew Lin, Kun-Yi
Source:
Polymer degradation and stability 2019 v.161 pp. 206-212
ISSN:
0141-3910
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; X-ray diffraction; absorption; active sites; adsorption; cations; cellulose; cellulose nanofibers; cellulosic fibers; hemicellulose; models; moieties; oxidation; pH; paraquat; scanning electron microscopy; sorption isotherms; surface area; wide-angle X-ray scattering;     Show all 20 Subjects
Abstract:
... The adsorption of paraquat was examined in the presence of renewable nanomaterials of 2,2,6,6-tetramethylpiperidine 1-oxyl (TEMPO) oxidized cellulose nanofibers (TOCNs) with different oxidation time (i.e. TOCN-1h, TOCN-4h, TOCN-8h, and TOCN-24h). First, we monitored the relationships among TEMPO-mediated oxidation times, cellulose surface functional groups, and fiber diameters. We observed the oxi ...
DOI:
10.1016/j.polymdegradstab.2019.01.023

137. Taguchi design-based enhancement of heavy metals bioremoval by agroindustrial waste biomass from artichoke

Author:
Fernández-López, José A.; Angosto, José M.; Roca, María J.; Doval Miñarro, Marta
Source:
The Science of the total environment 2019 v.653 pp. 55-63
ISSN:
0048-9697
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; Taguchi method; agricultural wastes; aqueous solutions; artichokes; biomass; cadmium; chemical composition; copper; heavy metals; lead; metal ions; models; moieties; pH; remediation; sorbents; sorption; sorption isotherms; toxicity;     Show all 21 Subjects
Abstract:
... The Taguchi method of designing experiments is based on a system of tabulated designs (arrays) that enables the maximum number of variables to be estimated in a neutral (orthogonal) balanced manner with a minimum number of experimental sets. Heavy metals remediation of aqueous streams is of special concern due to its highly toxic and persistent nature. Taguchi approach was used for enhanced bioads ...
DOI:
10.1016/j.scitotenv.2018.10.343

138. Linear β-Cyclodextrin Polymer Functionalized Multiwalled Carbon Nanotubes as Nanoadsorbent for Highly Effective Removal of U(VI) from Aqueous Solution Based on Inner-Sphere Surface Complexation

Author:
Xue, Jin-Hua; Zhang, Hui; Ding, D. X.; Hu, Nan; Wang, Yong-Dong; Wang, Yong-Sheng
Source:
Industrial & engineering chemistry process design and development 2019 v.58 no.10 pp. 4074-4083
ISSN:
1520-5045
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; X-ray diffraction; adsorbents; adsorption; aqueous solutions; beta-cyclodextrin; carbon nanotubes; effluents; endothermy; models; pH; polymers; process design; scanning electron microscopy; sorption isotherms; thermodynamics; uranium; uranyl ions; wastewater;     Show all 20 Subjects
Abstract:
... Linear β-cyclodextrin polymer functionalized multiwalled carbon nanotubes (MWCNTs-CDP) were synthesized and employed as a novel nanoadsorbent to remove uranyl ions in wastewater solutions. The characterization of MWCNTs-CDP, with Fourier transform infrared (FT-IR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and Brunauer–Emmett–Teller (BET), suggested that the CDP was successfully ...
DOI:
10.1021/acs.iecr.8b05453

139. Decontamination of organic pollutants from aqueous media using cotton fiber–graphene oxide composite, utilizing batch and filter adsorption techniques: a comparative study

Author:
Abd-Elhamid, A. I.; Nayl, A. A.; El. Shanshory, Ahmed A.; Soliman, Hesham M. A.; Aly, H. F.
Source:
RSC advances 2019 v.9 no.10 pp. 5770-5785
ISSN:
2046-2069
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; Raman spectroscopy; X-ray diffraction; adsorption; aqueous solutions; decontamination; gentian violet; lint cotton; methylene blue; mixing; models; pH; pollutants; scanning electron microscopy; sodium chloride; sorption isotherms; thermogravimetry; transmission electron microscopy;     Show all 19 Subjects
Abstract:
... Cotton fiber–graphene oxide (C–GO) composite with high adsorptive properties towards the cationic dye, crystal violet (CV), was successfully fabricated by simple mixing of cotton fiber and GO in aqueous solution using a homogenizer. The as-prepared composite was characterized using TEM, SEM, LOM, XRD, FTIR, Raman and TGA. The characterization indicated that the formation of a homogeneous composite ...
DOI:
10.1039/c8ra10449b

140. Removal of p-cresol and tylosin from water using a novel composite of alginate, recycled MnO2 and activated carbon

Author:
Shim, Jaehong; Kumar, Manish; Goswami, Ritusmita; Mazumder, Payal; Oh, Byung-Taek; Shea, Patrick J.
Source:
Journal of hazardous materials 2019 v.364 pp. 419-428
ISSN:
0304-3894
Subject:
temperature,   etc   ; activated carbon; adsorbents; adsorption; agitation; alginates; batteries; environmental impact; hazardous waste; livestock production; manganese dioxide; manufacturing; models; p-cresol; pH; pollutants; sorption isotherms; swine; tylosin; wastewater; wastewater treatment;     Show all 21 Subjects
Abstract:
... For sustainable production, there is an urgent need to minimize the adverse environmental impacts of swine farming, which is a major contributor of the pollutants p-cresol and tylosin. Novel reactive composite alginate beads (CAB-MOACs) were fabricated by combining alginate with activated carbon (AC) and MnO2 recovered from spent battery waste and used for efficient removal of p-cresol and tylosin ...
DOI:
10.1016/j.jhazmat.2018.09.065

141. Adsorption of Hg (II) ions from aqueous solution by diethylenetriaminepentaacetic acid-modified cellulose

Author:
Li, Bo; Li, Ming; Zhang, Jinyao; Pan, Yuanfeng; Huang, Zhihong; Xiao, Huining
Source:
International journal of biological macromolecules 2019 v.122 pp. 149-156
ISSN:
0141-8130
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; X-ray diffraction; adsorbents; adsorption; aqueous solutions; binding properties; cellulose; cross-linking reagents; ethylenediamines; heavy metals; kinetics; ligands; mercury; metal ions; models; pH; scanning electron microscopy; sorption isotherms;     Show all 19 Subjects
Abstract:
... The diethylenetriaminepentaacetic acid (DTPA)-modified cellulose adsorbent was prepared using N‑[3‑(trimethoxysilyl)propyl]ethylenediamine as a crosslinking reagent and used for the removal of Hg (II) ions from aqueous solution. The resulting adsorbents were comprehensively characterized with FTIR, XRD and SEM. The results showed that DTPA successfully functionalized cellulose, and coordinating DT ...
DOI:
10.1016/j.ijbiomac.2018.10.162

142. Karaya gum-graft-poly(2-(dimethylamino)ethyl methacrylate) gel: An efficient adsorbent for removal of ionic dyes from water

Author:
Bidarakatte Krishnappa, Preetha; Badalamoole, Vishalakshi
Source:
International journal of biological macromolecules 2019 v.122 pp. 997-1007
ISSN:
0141-8130
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; adsorbents; adsorption; aqueous solutions; composite polymers; copolymerization; hydrogels; indigo carmine; kinetics; methylene blue; microwave radiation; models; pH; polysaccharides; scanning electron microscopy; sorption isotherms; thermodynamics; thermogravimetry;     Show all 19 Subjects
Abstract:
... In the present study, a novel hydrogel based on the polysaccharide, ‘Karaya gum’ has been synthesised by graft copolymerization and evaluated as an adsorbent for the removal of ionic dyes from aqueous solution. The hydrogel was made by simultaneous grafting and cross linking of Karaya gum using 2-(dimethylamino)ethyl methacrylate (DMAEMA) and N,N′-methylene-bis-acrylamide via microwave irradiation ...
DOI:
10.1016/j.ijbiomac.2018.09.038

143. Hematite–titaniferous sand as a new low-cost adsorbent for orthophosphates removal: Adsorption, mechanism and Process Capability study

Author:
Benafqir, Mohamed; Anfar, Zakaria; Abbaz, Mohamed; El Haouti, Rachid; Lhanafi, Saaida; Azougarh, Youssef; Ait El Fakir, Abdellah; Ez-zahery, Mohamed; El Alem, Noureddine
Source:
Environmental technology & innovation 2019 v.13 pp. 153-165
ISSN:
2352-1864
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; X-radiation; X-ray diffraction; X-ray fluorescence spectroscopy; adsorbents; adsorption; energy-dispersive X-ray analysis; environmental technology; kinetics; models; orthophosphates; pH; sand; scanning electron microscopy; sorption isotherms; thermodynamics;     Show all 17 Subjects
Abstract:
... In this work, a new natural performing material Hematite–titaniferous sand (HTS) is used to study the adsorption of Orthophosphates, and to obtain the optimum conditions for maximum removal. The adsorbent used was characterized and inspected employing (XRD) X-ray diffraction, (XRF) X-ray fluorescence, (SEM) scanning electron microscopy coupled with (EDS) energy dispersive X-ray spectroscopy and (F ...
DOI:
10.1016/j.eti.2018.10.009

144. Potentiality of white-rot fungi in biosorption of nickel and cadmium: Modeling optimization and kinetics study

Author:
Noormohamadi, Hamid Reza; Fat'hi, Mohammad Reza; Ghaedi, Mehrorang; Ghezelbash, Gholam Reza
Source:
Chemosphere 2019 v.216 pp. 124-130
ISSN:
0045-6535
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; Phanerochaete chrysosporium; biosorbents; biosorption; cadmium; energy-dispersive X-ray analysis; ions; kinetics; mixing; models; moieties; nickel; pH; response surface methodology; scanning electron microscopy; sorption isotherms; white-rot fungi;     Show all 18 Subjects
Abstract:
... The present study aimed to analyze simultaneous biosorption of Cd+2 and Ni+2 by living Phanerochaete chrysosporium as low-cost and eco-friendly biosorbent following optimization by applying a central composite design. The effect of operating parameters such as solution pH (4.0–8.0), temperature (20–40 °C), contact time (3–15 h), initial Cd+2 and Ni+2 concentrations (15–35, 5–25 mg L−1, respectivel ...
DOI:
10.1016/j.chemosphere.2018.10.113

145. Synthesis of novel surface-modified hematite nanoparticles for the removal of cobalt-60 radiocations from aqueous solution

Author:
Hashemzadeh, M.; Nilchi, A.; Hassani, A. H.; Saberi, R.
Source:
International journal of environmental science and technology 2019 v.16 no.2 pp. 775-792
ISSN:
1735-1472
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; X-ray diffraction; adsorbents; adsorption; aqueous solutions; ferric chloride; hematite; hot water treatment; iron; models; nanoparticles; nanorods; oleic acid; pH; raw materials; scanning electron microscopes; sorption isotherms; surface area; transmission electron microscopy;     Show all 20 Subjects
Abstract:
... In this study, novel surface-modified hematite nanoparticles (α-Fe₂O₃ NPₛ) were prepared at 250 °C using iron(III) chloride hexahydrate (FeCl₃·6H₂O) and oleic acid (C₁₈H₃₄O₂) as raw materials for the removal of cobalt-60 radiocations from aqueous solutions by hydrothermal method. α-Fe₂O₃ NPₛ were characterized by X-ray diffraction, Fourier transform infrared (FT-IR), scanning electron microscope, ...
DOI:
10.1007/s13762-018-1656-4

146. Synthesis of novel waste batteries-sawdust-based adsorbent via a two-stage activation method for Pb2+ removal

Author:
Niu, Zhirui; Zhang, Shaokang; Ma, Mengfan; Wang, Zhenyang; Zhao, Hanyang; Wang, Yingying
Source:
Environmental science and pollution research international 2019 v.26 no.5 pp. 4730-4745
ISSN:
0944-1344
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; X-ray diffraction; adsorbents; adsorption; batteries; biomass; cation exchange capacity; electrodes; endothermy; iodine; lead; models; pH; raw materials; sawdust; scanning electron microscopy; sorption isotherms; thermodynamics; waste treatment; wastes;     Show all 21 Subjects
Abstract:
... The novel waste alkaline battery-sawdust-based adsorbents (WABAs) are prepared by a two-stage activation method with the negative electrode materials as activator and different doping ratio of the positive electrode materials and pine sawdust as raw materials. The characteristics of the WABAs are analyzed by SEM, XRD, FT-IR, and specific surface determination (SBET). The Pb²⁺ adsorption properties ...
DOI:
10.1007/s11356-018-3883-0

147. Biosorption of lead by cotton shells powder: Characterization and equilibrium modeling study

Author:
Akram, Muhammad; Khan, Binish; Imran, Muhammad; Ahmad, Iftikhar; Ajaz, Humayun; Tahir, Muhammad; Rabbani, Faiz; Kaleem, Imdad; Nadeem Akhtar, Muhammad; Ahmad, Naveed; Samad Shah, Noor
Source:
International journal of phytoremediation 2019 v.21 no.2 pp. 138-144
ISSN:
1549-7879
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; Gossypium hirsutum; adsorbents; biomass; biosorption; cotton; heavy metals; humans; ion exchange; lead; models; moieties; pH; phytoremediation; porosity; porous media; risk; scanning electron microscopy; sorption isotherms; surface area; toxicity; water pollution;     Show all 23 Subjects
Abstract:
... Lead (Pb) is a toxic heavy metal causing serious health risks to humans and animals. In the present study, cotton (Gossypium hirsutum L.) shells powder was used as adsorbent for the treatment of synthetic Pb-contaminated water. The batch scale biosorption capacity of cotton shells powder was evaluated to study the effects of Pb concentrations, adsorbent doses and contact time at constant pH (6) an ...
DOI:
10.1080/15226514.2018.1488810

148. Convenient pH-responsive removal of Acid Black 1 by green l-histidine/iron oxide magnetic nanoadsorbent from water: performance and mechanistic studies

Author:
Qurrat-ul-Ain,; Khatoon, Jaweria; Shah, Muhammad Raza; Malik, Muhammad Imran; Khan, Iffat Abdul Tawab; Khurshid, Sumaira; Naz, Raheela
Source:
RSC advances 2019 v.9 no.6 pp. 2978-2996
ISSN:
2046-2069
Subject:
temperature,   etc   ; activation energy; adsorbents; adsorption; aqueous solutions; atomic force microscopy; azo dyes; coatings; compliance; energy; heat production; histidine; ionic strength; iron oxides; magnetism; models; nanoparticles; pH; sorption isotherms; spectroscopy; thermogravimetry; wastewater;     Show all 22 Subjects
Abstract:
... This study was aimed at developing green histidine-modified Fe₃O₄ nanoparticles (His-MNPs) for the adsorptive removal of Acid Black 1 (AB1) from aqueous solution. The His-MNPs were characterized by atomic force microscopy, scanning electron microscopy-energy dispersive X-ray spectrometry, infra-red spectra and thermogravimetry. These MNPs were spherical (average diameter 11–28 nm) with polydispers ...
DOI:
10.1039/c8ra09279f

149. Core-Shell Bimagnetic Nanoadsorbents for Hexavalent Chromium Removal from Aqueous Solutions

Author:
Campos, Alex Fabiano Cortez; de Oliveira, Helena Augusta Lisboa; da Silva, Fabiana Narciso; da Silva, Franciscarlos Gomes; Coppola, Priscilla; Aquino, Renata; Mezzi, Alessio; Depeyrot, Jerome
Source:
Journal of hazardous materials 2019 v.362 pp. 82-91
ISSN:
0304-3894
Subject:
temperature,   etc   ; Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; adsorption; aqueous solutions; chromium; endothermy; ions; magnetism; models; nanoparticles; pH; pollutants; separation; sorbents; sorption isotherms; surface area; transmission electron microscopy; water pollution;     Show all 20 Subjects
Abstract:
... Novel nanoadsorbents based on core-shell bimagnetic nanoparticles (CoFe2O4@ɣ-Fe2O3) with two different mean sizes were elaborated, characterized and applied as potential sorbents for Cr(VI) removal from aqueous solutions through magnetically assisted chemical separation. The nanoadsorbents were characterized by XRD, TEM, FTIR, XPS, potentiometric-conductometric titrations, BET and vibrating sample ...
DOI:
10.1016/j.jhazmat.2018.09.008

150. Enhancing adsorption capacity of Egyptian diatomaceous earth by thermo-chemical purification: Methylene blue uptake

Author:
Mohamed, Essam A.; Selim, Ali Q.; Zayed, Ahmed M.; Komarneni, Sridhar; Mobarak, Mohamed; Seliem, Moaaz K.
Source:
Journal of colloid and interface science 2019 v.534 pp. 408-419
ISSN:
0021-9797
Subject:
temperature,   etc   ; Bacillariophyceae; Fourier transform infrared spectroscopy; X-ray diffraction; X-ray fluorescence spectroscopy; active sites; adsorbents; adsorption; diatomaceous earth; endothermy; light microscopy; methylene blue; models; pH; scanning electron microscopy; silica; sorption isotherms; thermodynamics;     Show all 18 Subjects
Abstract:
... In the current study, calcination and thermo-chemical methods were applied in treatment of the processed diatomite fraction (<45 μm), which containing nearly 82.6 wt.% of the raw Egyptian diatomaceous earth. The untreated and modified diatomite fractions were characterized by optical microscopy (OM), X-ray fluorescence (XRF), X-ray diffraction (XRD), scanning electron microscopy (SEM) and Fourier ...
DOI:
10.1016/j.jcis.2018.09.024