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- Author:
- Liu, Zechen; Xia, Yangchao; Lai, Qingteng; An, Maoyan; Liao, Yinfei; Wang, Yongtian
- Source:
- Colloids and surfaces 2019 v.583 pp. 123840
- ISSN:
- 0927-7757
- Subject:
- Fourier transform infrared spectroscopy; absorption; adsorption; coal; collectors; contact angle; energy; hydrophilicity; hydrophobicity; lipophilicity; moieties; molecular dynamics
- Abstract:
- ... In this investigation, a mixed collector (MC) of dodecane and n-valeric acid was used to improve low rank coal flotation. Fourier transformation infrared spectroscopy (FTIR) measurements and contact angle measurements were conducted to explain flotation responses. Furthermore, using a molecular dynamics (MD) simulation, the changes of water/collector (dodecane or MC)/coal systems were studied befo ...
- DOI:
- 10.1016/j.colsurfa.2019.123840
-
https://dx.doi.org/10.1016/j.colsurfa.2019.123840
- Author:
- Sun, Xiaolu; Huang, Haiyan; Zhu, Yaqun; Du, Yingying; Yao, Lunguang; Jiang, Xincheng; Gao, Pengcheng
- Source:
- Colloids and surfaces 2019 v.583 pp. 123926
- ISSN:
- 0927-7757
- Subject:
- Arthrospira platensis; Fourier transform infrared spectroscopy; adsorbents; adsorption; cadmium; cations; energy-dispersive X-ray analysis; heavy metals; industrial wastewater; lead; metal ions; microalgae; models; pH; polyacrylamide; scanning electron microscopy; sorption isotherms; wastewater treatment
- Abstract:
- ... This study examined the feasibility and characteristics of microalgae waste treatment using a mixture of Spirulina platensis and polyacrylamide (SP-PAM) as an adsorbent system for removing Pb²⁺ and Cd²⁺ from simulated wastewater in single and binary solution systems. Multiple techniques, including scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), energy-dispersiv ...
- DOI:
- 10.1016/j.colsurfa.2019.123926
-
https://dx.doi.org/10.1016/j.colsurfa.2019.123926
- Author:
- Zhou, Wanqiang; Wang, Jingyi; He, Jiangang; Yang, Xiaoyu; Shi, Yanlin; Wang, Xiangyun; Liu, Chunli
- Source:
- Colloids and surfaces 2019 v.583 pp. 123929
- ISSN:
- 0927-7757
- Subject:
- EDTA (chelating agent); X-ray photoelectron spectroscopy; adsorption; groundwater; infrared spectroscopy; migratory behavior; models; montmorillonite; pH; radioactive pollution; reflectance spectroscopy; uranium
- Abstract:
- ... The adsorption, diffusion and migration behaviors of uranium may be highly influenced by organics in natural environments. Ethylenediaminetetraacetic acid (EDTA) is one of the most important small organics in groundwaters, especially at the radioactive contaminated sites. In this work, we studied U(VI) adsorption on montmorillonite in the presence of EDTA with batch method. Our results indicated t ...
- DOI:
- 10.1016/j.colsurfa.2019.123929
-
https://dx.doi.org/10.1016/j.colsurfa.2019.123929
- Author:
- Nörnberg, Andressa B.; Gehrke, Vinicios R.; Mota, Henrique P.; Camargo, Edinalvo R.; Fajardo, André R.
- Source:
- Colloids and surfaces 2019 v.583 pp. 123970
- ISSN:
- 0927-7757
- Subject:
- alginates; cellulose; encapsulation; imazethapyr; liquids; models; pH
- Abstract:
- ... Alginate (ALG) and alginate/cellulose (ALG/CEL) beads were prepared and tested as potential vehicles for encapsulation and controlled release of imazethapyr (IMZ), a broad spectrum herbicide. The incorporation of a small amount of CEL (5 w/w-%) into the ALG network allowed to increase the encapsulation efficiency of IMZ (>85%). CEL also contributed to control of some important features such as the ...
- DOI:
- 10.1016/j.colsurfa.2019.123970
-
https://dx.doi.org/10.1016/j.colsurfa.2019.123970
- Author:
- El-Sharkawy, Rehab G.
- Source:
- Colloids and surfaces 2019 v.583 pp. 123871
- ISSN:
- 0927-7757
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; adsorption; aqueous solutions; cost effectiveness; decolorization; dyes; endothermy; equations; hydrogen peroxide; models; nanoparticles; nanosilver; orange peels; particle size; sorption isotherms; spectrophotometers; thermal stability; ultraviolet-visible spectroscopy
- Abstract:
- ... Silver nanoparticles (AgNPs) were immobilized onto either an acid or "base-functionalized" orange peel via the green synthesized method and denoted as AgNPs@OP/A and AgNPs@OP/B. FTIR, UV–vis spectra, XRD, and thermogravemetric analysis techniques characterized the samples obtained. The mean particle size of immobilized AgNPs was computed from the XRD pattern based on the plane's line width, refrac ...
- DOI:
- 10.1016/j.colsurfa.2019.123871
-
https://dx.doi.org/10.1016/j.colsurfa.2019.123871
- Author:
- Yuan, Junjie; Zhang, Yunbo
- Source:
- Colloids and surfaces 2019 v.583 pp. 123911
- ISSN:
- 0927-7757
- Subject:
- angle of incidence; coatings; emulsions; glass; polymerization; sol-gel processing; solvents; transmittance; wavelengths
- Abstract:
- ... In the current work, excellent optical antireflective coatings with various surface morphologies are prepared combining with emulsion polymerization, sol-gel process and dip-coating technique. Among these antireflective coatings, bowl-like pit structure antireflective coatings show broadband and semi-omnidirectional antireflective properties. The mean transmittance of this kind of coatings reaches ...
- DOI:
- 10.1016/j.colsurfa.2019.123911
-
https://dx.doi.org/10.1016/j.colsurfa.2019.123911
- Author:
- Chang, Xiaofeng; Sun, Jinsheng; Xu, Zhe; Zhang, Fan; Wang, Jintang; Lv, Kaihe; Dai, Zhiwen
- Source:
- Colloids and surfaces 2019 v.583 pp. 123979
- ISSN:
- 0927-7757
- Subject:
- Fourier transform infrared spectroscopy; UHT treatment; acute toxicity; ammonium persulfate; aqueous solutions; calcium; clay; composite polymers; drilling; filtration; ions; median effective concentration; nuclear magnetic resonance spectroscopy; particle size distribution; petroleum; sodium bisulfite; thermal degradation; thermal stability; thermogravimetry; zeta potential
- Abstract:
- ... In the study, nano-lignin (Nano-LS) was gradually formed from inside to outside via layer-by-layer self-assembly owing to the interaction of π-π bonds, and a novel amphoteric polymer, Nano-LS-g-DAD, was synthesized by grafting N, N-dimethylacrylamide (DMAM), 2-acrylamido-2-methylpropanesulfonic acid (AMPS), diallyl dimethyl ammonium chloride (DMDAAC) onto the Nano-LS in an aqueous solution using a ...
- DOI:
- 10.1016/j.colsurfa.2019.123979
-
https://dx.doi.org/10.1016/j.colsurfa.2019.123979
- Author:
- Aghaghafari, Elham; Zamanloo, Mohammad Reza; Omrani, Ismail; Salarvand, Ehsan
- Source:
- Colloids and surfaces 2019 v.583 pp. 123951
- ISSN:
- 0927-7757
- Subject:
- alkaline hydrolysis; aqueous solutions; atomic force microscopy; chemical structure; contact angle; emulsifying; encapsulation; hydrophilicity; hydrophobicity; light scattering; micelles; nanoparticles; nuclear magnetic resonance spectroscopy; oleic acid; olive oil; polyurethanes; scanning electron microscopy; solvents; ultraviolet-visible spectroscopy
- Abstract:
- ... A novel amphiphilic random polyurethane (APU) having both hydrophilic (Di(ethylene glycol), DEG) and hydrophobic/emulsifying (Oleic acid based dihydroxy fatty acid, DHA) constituents was synthesized and characterized for micellization utility. In order to prepare the dihydroxy acid, epoxidized methyl oleate was ring-opened in aqueous solution followed by alkali hydrolysis. The chemical structure o ...
- DOI:
- 10.1016/j.colsurfa.2019.123951
-
https://dx.doi.org/10.1016/j.colsurfa.2019.123951
- Author:
- Liu, Gaoyang; Wang, Jiajun; Wang, Wei; Yu, Dan
- Source:
- Colloids and surfaces 2019 v.583 pp. 123941
- ISSN:
- 0927-7757
- Subject:
- air; antifouling activities; contact angle; fabrics; hydrophobicity; oils; petroleum; pollution; polymerization
- Abstract:
- ... The crude oil leakage pollution has become a serious problem which frequently occurs all over the world. To solve this issue, highly efficient oil-water mixtures separation material requires urgently. Herein, a superhydrophobic PET fabric was developed by using a facile and novel method based on UV induced radical polymerization. The prepared PET fabric showed excellent superhydrophobicity with a ...
- DOI:
- 10.1016/j.colsurfa.2019.123941
-
https://dx.doi.org/10.1016/j.colsurfa.2019.123941
- Author:
- Wahab, Rizwan; Ahmad, Javed; Ahmad, Naushad
- Source:
- Colloids and surfaces 2019 v.583 pp. 123953
- ISSN:
- 0927-7757
- Subject:
- X-radiation; X-ray diffraction; apoptosis; bacteria; bioactive properties; caspase-3; confocal microscopy; gene expression regulation; genes; neoplasm cells; neoplasms; quantum dots; scanning electron microscopy; staining; toxicity testing; transmission electron microscopy; ultraviolet-visible spectroscopy
- Abstract:
- ... The size of nanomaterial is a significant parameter, which influences the physicochemical characteristic.These materials also have a part to affect various biological activities in cells and bacterial solution. Because of the larger applicability and enough potential of nanostructures, the current work was displyed the dissimilar shaped nano structures such as quantum dots (QDs), rods (NRs) and sh ...
- DOI:
- 10.1016/j.colsurfa.2019.123953
-
https://dx.doi.org/10.1016/j.colsurfa.2019.123953
- Author:
- Komeily-Nia, Zahra; Montazer, Majid; Aye, San seint seint; Nasri-Nasrabadi, Bijan
- Source:
- Colloids and surfaces 2019 v.583 pp. 123998
- ISSN:
- 0927-7757
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; antibacterial properties; copper; cupric oxide; energy-dispersive X-ray analysis; fabrics; ions; manganese; manganese dioxide; nanoflowers; nylon; scanning electron microscopy; semiconductors; synthesis; synthetic fibers; transmission electron microscopy
- Abstract:
- ... CuO/MnO₂ core/shell nanostructures were synthesized and successfully loaded on nylon fabric through one step chemical method. Copper oxide (CuO) is a low-cost and stable semiconductor and has promising applications in wearable devices or smart textiles. However, divalent nature of copper atoms makes it difficult to assemble on most synthetic fibers and usually display a poor distribution on fiber ...
- DOI:
- 10.1016/j.colsurfa.2019.123998
-
https://dx.doi.org/10.1016/j.colsurfa.2019.123998
- Author:
- Tabesh, E.; Kharaziha, M.; Mahmoudi, M.; Shahnam, E.; Rozbahani, M.
- Source:
- Colloids and surfaces 2019 v.583 pp. 123945
- ISSN:
- 0927-7757
- Subject:
- adhesion; bioactive properties; cell proliferation; coatings; corrosion; electric potential difference; electrochemistry; electrophoresis; lactones; nanocomposites; nanoparticles; prostheses; roughness; stainless steel
- Abstract:
- ... In this study, Laponite®:poly(caprolactone)(PCL) nanocomposite coatings were developed on 316 L stainless steel via electrophoretic process to improve its biological and electrochemical characteristics. In this respect, different voltages (60 and 90 V) and weight ratios of Laponite®:PCL (2:5, 1:1 and 5:2) were applied to develop nanocomposite coatings on 316 L stainless steel. Results illustrated ...
- DOI:
- 10.1016/j.colsurfa.2019.123945
-
https://dx.doi.org/10.1016/j.colsurfa.2019.123945
- Author:
- Ouyang, Yibo; Zhao, Jin; Qiu, Ri; Hu, Shugang; Niu, Haili; Chen, Ming; Wang, Peng
- Source:
- Colloids and surfaces 2019 v.583 pp. 124006
- ISSN:
- 0927-7757
- Subject:
- Nepenthes; bioactive properties; bioadhesion; biomimetics; cobalt; copper; corrosion; dielectric spectroscopy; hydrophobicity; liquids; oils; oxidation; seawater; silicone; sulfate-reducing bacteria; thiols
- Abstract:
- ... Inspired by natural plant Nepenthes pitcher, liquid infused surface (LIS) imparts opportunities in material protection fields. In this report, LIS is realized via compositing superhydrophobic cobalt dendrite matrix and silicone oil phase. Firstly, metallic cobalt dendrite is electrodeposited onto Cu substrate. With oxidation, the dendrite is covered by oxide layer on external surface. Further depo ...
- DOI:
- 10.1016/j.colsurfa.2019.124006
-
https://dx.doi.org/10.1016/j.colsurfa.2019.124006
- Author:
- Zhao, Yili; Xiong, Jie; Shi, Xiangyang; Ko, Frank
- Source:
- Colloids and surfaces 2019 v.583 pp. 123978
- ISSN:
- 0927-7757
- Subject:
- amines; biocompatibility; hyaluronic acid; nanofibers; neoplasm cells; neoplasms; polyethyleneimine; polylactic acid
- Abstract:
- ... The capture of circulating tumor cells (CTCs) is of paramount importance for early cancer diagnosis. Herein, we report the development of hyaluronic acid (HA)-immobilized electrospun random or aligned polylactic acid (PLA) nanofibers for cancer cell capture applications. Electrospun random or aligned PLA nanofibers were modified with HA via polyethylenimine (PEI) as a linker, followed by acetylati ...
- DOI:
- 10.1016/j.colsurfa.2019.123978
-
https://dx.doi.org/10.1016/j.colsurfa.2019.123978
- Author:
- Sarkar, Tamal; Rawat, Kamla; Solanki, Pratima R.; Bohidar, H.B.
- Source:
- Colloids and surfaces 2019 v.583 pp. 123844
- ISSN:
- 0927-7757
- Subject:
- ambient temperature; carbon quantum dots; fluorescence; functional properties; gelation; light scattering; nanocomposites; organogels; rheology; silica; xerogels
- Abstract:
- ... Herein, we describe the dynamics of gel transition of silica sol (tetraethoxysilane (TEOS) in ethanol-H₂O to xerogel viaoranogel route. Silica sol made in ethanolic solution turns into an organogel during sol-gel synthesis of TEOS, which eventually makes a phase transition to xerogel following a process of spontaneous dehydration of the gel network at room temperature. It was observed that the gel ...
- DOI:
- 10.1016/j.colsurfa.2019.123844
-
https://dx.doi.org/10.1016/j.colsurfa.2019.123844
- Author:
- Wang, Duan; Wu, Yuanbo; Lv, Jinmeng; Wang, Rongrong; Xu, Sailong
- Source:
- Colloids and surfaces 2019 v.583 pp. 123957
- ISSN:
- 0927-7757
- Subject:
- batteries; carbon; cathodes; coatings; electrochemistry; encapsulation; nanocomposites; nanoparticles; sodium; sol-gel processing
- Abstract:
- ... Sodium-ion batteries (SIBs) have been recognized as one type of the most potential technologies for low-cost rechargeable batteries owing to the abundant resource of sodium. Herein, we present nanosized maricite NaFePO₄ nanoparticles encapsulated within carbon (NFP@NPCM) via a sol-gel method. The resultant NFP@NPCM nanocomposite as cathode material for SIBs exhibits a high capacity retention of mo ...
- DOI:
- 10.1016/j.colsurfa.2019.123957
-
https://dx.doi.org/10.1016/j.colsurfa.2019.123957
- Author:
- Onur, Aysu; Shanmugam, Kirubanandan; Ng, Aaron; Garnier, Gil; Batchelor, Warren
- Source:
- Colloids and surfaces 2019 v.583 pp. 123997
- ISSN:
- 0927-7757
- Subject:
- adsorbents; adsorption; cellulose; cellulosic fibers; coatings; epichlorohydrins; filters; methylene blue; microfiltration; molecular weight; nanofibers; papermaking; perlite; polyethylene glycol; wet strength; wood pulp
- Abstract:
- ... Depth type composite filters are used to remove contaminants from liquids by combining mechanical entrapment and adsorption. Commonly, depth filters can adsorb either anionic or cationic charged contaminants, but not both, as well as filter micron-sized particles. Therefore, there is still a need to improve the existing depth filter performance. In this study, we developed a two-layer filters with ...
- DOI:
- 10.1016/j.colsurfa.2019.123997
-
https://dx.doi.org/10.1016/j.colsurfa.2019.123997
- Author:
- Chen, Zhiwu; Liang, Xingxing; Yang, Rui; Yang, Miao; Tan, Tianwei; Cao, Hui
- Source:
- Colloids and surfaces 2019 v.583 pp. 123920
- ISSN:
- 0927-7757
- Subject:
- catalytic activity; glucose oxidase; immobilized enzymes; iron oxides; magnetism; nanoparticles; peroxidase; polymerization; polymers; silica
- Abstract:
- ... A block copolymer brush based on functional monomers (N-succinimidyl acrylate and N-adamantylacrylamide) successfully grew on the surface of Fe₃O₄@SiO₂ nanoparticles by surface-initiated reversible addition-fragmentation chain transfer polymerization (SI-RAFT). According to the multiple recognition mechanisms of this material, horseradish peroxidase (HRP) and β-cyclodextrin-modified glucose oxidas ...
- DOI:
- 10.1016/j.colsurfa.2019.123920
-
https://dx.doi.org/10.1016/j.colsurfa.2019.123920
- Author:
- Yılmaz, Şakir; Zengin, Adem; Ecer, Ümit; Şahan, Tekin
- Source:
- Colloids and surfaces 2019 v.583 pp. 123961
- ISSN:
- 0927-7757
- Subject:
- Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; acrylamides; adsorbents; adsorption; cobalt; contact angle; decolorization; methylene blue; pH; polymerization; polymers; pumice; response surface methodology; scanning electron microscopy; temperature; thermodynamics
- Abstract:
- ... The present work reports the adsorption yield of methylene blue (MB) from aqueous environments using pumice (PMC) coated with poly(N-[Tris (hydroxymethyl)methyl]acrylamide), PTHAM@PMC, by surface-initiated reversible addition fragmentation chain transfer (SI-RAFT) polymerization. The synthesized PTHAM@PMC particles were characterized by X-ray photoelectron spectroscopy (XPS), attenuated total refl ...
- DOI:
- 10.1016/j.colsurfa.2019.123961
-
https://dx.doi.org/10.1016/j.colsurfa.2019.123961
- Author:
- He, Shixue; Yang, Chao; Niu, Mingguang; Wei, Dandi; Chu, Shasha; Zhong, Mei; Wang, Jide; Su, Xintai; Wang, Lu
- Source:
- Colloids and surfaces 2019 v.583 pp. 124007
- ISSN:
- 0927-7757
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; adsorption; catalysts; catalytic activity; chemical reduction; durability; hydrogenation; ions; magnetism; nanoparticles; nitroanilines; oxalates; p-nitrophenol; scanning electron microscopy; silver; surface area; thermal degradation
- Abstract:
- ... Well-defined deposition of noble metal nanoparticles is attractive for the synthesis of heterogeneous metal catalysts with excellent activity, stability, and easy separability. Herein, a facile method combining surface coordination deposition with thermal decomposition has been proposed to fabricate Ag/CoFe₂O₄ composites as magnetic catalysts for hydrogenation reduction of 4-nitrophenol and 2-nitr ...
- DOI:
- 10.1016/j.colsurfa.2019.124007
-
https://dx.doi.org/10.1016/j.colsurfa.2019.124007