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1. Construction of MoS2 nanoarrays and MoO3 nanobelts: Two efficient adsorbents for removal of Pb(II), Au(III) and Methylene Blue

Author:
Zhou, Wen; Deng, Jiale; Qin, Zhen; Huang, Ruihua; Wang, Yi; Tong, Shanshan
Source:
Journal of environmental sciences (China) 2022 v.111 pp. 38-50
ISSN:
1001-0742
Subject:
adsorption,   etc   ; adsorbents; endothermy; heavy metals; methylene blue; thermodynamics; toxicity; wastewater treatment; China;     Show all 9 Subjects
Abstract:
... Toxic heavy metal ions, valuable noble metal ions and organic dyes are significant concerns in wastewater treatment. In this work, MoO₃ nanobelts (MoO₃ NBs) prepared by solvothermal method and MoS₂ nanoarrays (MoS₂ NAs) constructed using MoO₃ NBs precursor were proposed to effectively remove heavy/noble metal ions and organic dyes, such as Pb⁽ᴵᴵ⁾, Au⁽ᴵᴵᴵ⁾ and Methylene Blue (MB). The two adsorbent ...
DOI:
10.1016/j.jes.2021.02.031

2. Hyperbranched molecules having multiple functional groups as effective corrosion inhibitors for Al alloys in aqueous NaCl

Author:
Ren, Xiaolei; Xu, Shenying; Gu, Xingxing; Tan, Bochuan; Hao, Jiangyu; Feng, Li; Ren, Weihua; Gao, Fang; Zhang, Shengtao; Xiao, Yiran; Huang, Lan
Source:
Journal of colloid and interface science 2021 v.585 pp. 614-626
ISSN:
0021-9797
Subject:
adsorption,   etc   ; corrosion; electrochemistry; electrodes;     Show all 4 Subjects
Abstract:
... Hyperbranched molecules are a kind of promising materials due to their unique structures. In this work, two hyperbranched molecules (GON and GOH) are used as effective inhibitors for Al alloys in NaCl solution. Their inhibitive performances are evaluated by electrochemical measurements and surface characterization. The results indicate that inhibition performances of GON and GOH are closely relate ...
DOI:
10.1016/j.jcis.2020.10.041

3. A critical review on the application of biochar in environmental pollution remediation: Role of persistent free radicals (PFRs)

Author:
Luo, Kun; Pang, Ya; Wang, Dongbo; Li, Xue; Wang, Liping; Lei, Min; Huang, Qi; Yang, Qi
Source:
Journal of environmental sciences (China) 2021 v.108 pp. 201-216
ISSN:
1001-0742
Subject:
adsorption,   etc   ; biochar; pollution; remediation; China;     Show all 5 Subjects
Abstract:
... Biochar as an emerging carbonaceous material has exhibited a great potential in environmental application for its perfect adsorption ability. However, there are abundant persistent free radicals (PFRs) in biochar, so the direct and indirect PFRs-mediated removal of organic and inorganic contaminants by biochar was widely reported. In order to comprehend deeply the formation of PFRs in biochar and ...
DOI:
10.1016/j.jes.2021.02.021

4. Absorption of surfactant-laden droplets into porous media: A numerical study

Author:
van Gaalen, R.T.; Diddens, C.; Siregar, D.P.; Wijshoff, H.M.A.; Kuerten, J.G.M.
Source:
Journal of colloid and interface science 2021 v.597 pp. 149-159
ISSN:
0021-9797
Subject:
adsorption,   etc   ; absorption; capillarity; droplets; surfactants;     Show all 5 Subjects
Abstract:
... Droplets can absorb into permeable substrates due to capillarity. It is hypothesized that the contact line dynamics influence this process and that an unpinned contact line results in slower absorption than a pinned contact line, since the contact area between the droplet and the substrate will decrease over time for the former. Furthermore, it is expected that surfactants can be used to accelerat ...
DOI:
10.1016/j.jcis.2021.03.119

5. Effective adsorption of quadrivalent cerium by synthesized laurylsulfonate green rust in a central composite design

Author:
Huang, Tao; Zhang, Shu-wen; Xie, Juan; Zhou, Lulu; Liu, Long-fei
Source:
Journal of environmental sciences (China) 2021 v.107 pp. 14-25
ISSN:
1001-0742
Subject:
adsorption,   etc   ; cerium; kinetics; pH; China;     Show all 5 Subjects
Abstract:
... The layered laurylsulfonate intercalated green rust (lauryl-S GR) was synthesized to evaluate the influence of synthesis parameters and aqueous conditions on the adsorption of Ceᴵⱽ. The maximum adsorption capacity of 305.58 mg/g by lauryl-S GR was predictably obtained. The pseudo-first-order kinetic model was appropriate in fitting the whole uptake process in a weak acid environment. Three isother ...
DOI:
10.1016/j.jes.2021.01.028

6. Structural properties of deprotonated naphthenic acids immersed in water in pristine and hydroxylated carbon nanopores from molecular perspectives

Author:
Zhang, Mingshan; Li, Wenhui; Jin, Zhehui
Source:
Journal of hazardous materials 2021 v.415 pp. 125660
ISSN:
0304-3894
Subject:
adsorption,   etc   ; hydrogen; hydrophobicity; hydroxylation; nanopores;     Show all 5 Subjects
Abstract:
... We use molecular dynamic simulations to study the structural properties of deprotonated cyclohexanoic acid (DCHA) and heptanoic acid (DHA) immersed in water in pristine and hydroxylated carbon nanopores (PACNs and HACNs) in relation to NA removal by activated carbons (ACs). In PACNs, both NAs can aggregate on the pore surface by depleting water molecules, while water molecules accumulate in the ar ...
DOI:
10.1016/j.jhazmat.2021.125660

7. Competitive arsenate and phosphate adsorption on α-FeOOH, LaOOH, and nano-TiO2: Two-dimensional correlation spectroscopy study

Author:
Li, Xiaochen; Yan, Li; Zhong, Wen; Kersten, Michael; Jing, Chuanyong
Source:
Journal of hazardous materials 2021 v.414 pp. 125512
ISSN:
0304-3894
Subject:
adsorption,   etc   ; adsorbents; arsenates; calcium; phosphates;     Show all 5 Subjects
Abstract:
... Competitive adsorption of arsenate (AsO₄³⁻) and phosphate (PO₄³⁻) on α-FeOOH, LaOOH, and nano-TiO₂ was studied using batch adsorption experiments and in-situ flow cell ATR-FTIR coupled with two-dimensional correlation spectroscopy (2D-COS) for the first time. With a higher temporal resolution, our results found a highly dynamic adsorption sequence for AsO₄³⁻ and PO₄³⁻. When AsO₄³⁻ and PO₄³⁻ were s ...
DOI:
10.1016/j.jhazmat.2021.125512

8. A high-response formaldehyde sensor based on fibrous Ag-ZnO/In2O3 with multi-level heterojunctions

Author:
Liu, Jingjing; Zhang, Liuyang; Cheng, Bei; Fan, Jiajie; Yu, Jiaguo
Source:
Journal of hazardous materials 2021 v.413 pp. 125352
ISSN:
0304-3894
Subject:
adsorption,   etc   ; detection limit; formaldehyde; nanofibers;     Show all 4 Subjects
Abstract:
... Timely detection of formaldehyde is pivotal because formaldehyde is slowly released from the indoor decorative materials, jeopardizing our healthy. Herein, a high-response formaldehyde gas sensor based on Ag-ZnO/In₂O₃ nanofibers was successfully fabricated. Compared with all the control samples, the hybrid exhibits superior sensitivity (0.65 ppm⁻¹), excellent selectivity (≥ 12.5) and durable stabi ...
DOI:
10.1016/j.jhazmat.2021.125352

9. Optimization of Sibipiruna activated carbon preparation by simplex-centroid mixture design for simultaneous adsorption of rhodamine B and metformin

Author:
Spessato, Lucas; Duarte, Vitor A.; Viero, Patrícia; Zanella, Heloisa; Fonseca, Jhessica M.; Arroyo, Pedro A.; Almeida, Vitor C.
Source:
Journal of hazardous materials 2021 v.411 pp. 125166
ISSN:
0304-3894
Subject:
adsorption,   etc   ; metformin; rhodamines; surface area;     Show all 4 Subjects
Abstract:
... The present paper reports the application of augmented simplex-centroid mixture design to obtain a high BET surface area activated carbon using as reactants KOH, K₂CO₃ and K₂C₂O₄. The optimum mixture composition was 2.51 g of KOH, 0.49 g of K₂CO₃ and absence of K₂C₂O₄, generating an optimized AC (ACₒₚ) with SBET value equals to 1984 m² g⁻¹. The results herein obtained show that low amounts of K₂CO ...
DOI:
10.1016/j.jhazmat.2021.125166

10. Prussian blue analogs-based layered double hydroxides for highly efficient Cs+ removal from wastewater

Author:
Chen, Shangqing; Yang, Xiaonan; Wang, Zheng; Hu, Jiayin; Han, Senjian; Guo, Yafei; Deng, Tianlong
Source:
Journal of hazardous materials 2021 v.410 pp. 124608
ISSN:
0304-3894
Subject:
adsorption,   etc   ; calcium alginate; skeleton; wastewater;     Show all 4 Subjects
Abstract:
... In this work, novel Prussian blue analogs-based layered double hydroxide (PBA@ZnTi-LDH) was in situ synthesized and used for radioactive Cs⁺ removal from wastewater. The results suggested that this PBA@ZnTi-LDH prepared using LDH as skeleton and transition metal source showed higher adsorption capacity (243.9 mg/g) and water stability than conventional PBAs, and promising application in scale-up C ...
DOI:
10.1016/j.jhazmat.2020.124608

11. Environment of Metal–O–Fe Bonds Enabling High Activity in CO₂ Reduction on Single Metal Atoms and on Supported Nanoparticles

Author:
Zhu, Yifeng; Yuk, Simuck F.; Zheng, Jian; Nguyen, Manh-Thuong; Lee, Mal-Soon; Szanyi, Janos; Kovarik, Libor; Zhu, Zihua; Balasubramanian, Mahalingam; Glezakou, Vassiliki-Alexandra; Fulton, John L.; Lercher, Johannes A.; Rousseau, Roger; Gutiérrez, Oliver Y.
Source:
Journal of the American Chemical Society 2021 v.143 no.14 pp. 5540-5549
ISSN:
1520-5126
Subject:
adsorption,   etc   ; carbon dioxide; catalytic activity;     Show all 3 Subjects
Abstract:
... Single-atom catalysts are often reported to have catalytic properties that surpass those of nanoparticles, while a direct comparison of sites common and different for both is lacking. Here we show that single atoms of Pt-group metals embedded into the surface of Fe₃O₄ have a greatly enhanced interaction strength with CO₂ compared with the Fe₃O₄ surface. The strong CO₂ adsorption on single Rh atoms ...
DOI:
10.1021/jacs.1c02276

12. Advances in De-NOₓ Methods and Catalysts for Direct Catalytic Decomposition of NO: A Review

Author:
Zhang, Yuanyuan; Cao, Guojin; Yang, Xiao
Source:
Energy & fuels 2021 v.35 no.8 pp. 6443-6464
ISSN:
1520-5029
Subject:
adsorption,   etc   ; catalysts; energy; hydrotalcite; China;     Show all 5 Subjects
Abstract:
... China is the country with the most coal-power generation and the most diesel vehicles in the world; it is of great significance to research the reduction of NO emissions. This paper summarizes five de-NOₓ methods, including adsorption, storage reduction, selective catalytic reduction, selective non-catalytic reduction, and direct catalytic decomposition, and explores the current research state and ...
DOI:
10.1021/acs.energyfuels.1c00330

13. Interaction of cyclosporin A molecules with alkali and transition metal atoms on Cu(111)

Author:
Guo, Yuanyuan; Jiang, Li; Seitsonen, Ari Paavo; Zhang, Bodong; Reichert, Joachim; Papageorgiou, Anthoula C.; Barth, Johannes V.
Source:
Chemical communications 2021 v.57 no.23 pp. 2923-2926
ISSN:
1364-548X
Subject:
adsorption,   etc   ; cyclosporine; density functional theory;     Show all 3 Subjects
Abstract:
... The structure of a cyclic peptide with important biological functionalities, cyclosporin A (CsA), is investigated at the single molecule level. Its adsorption on Cu(111) under ultra-high vacuum is characterised with scanning tunnelling microscopy (STM) and density functional theory. With STM investigations, we demonstrate element specific on-surface coordination schemes of CsA with coadsorbed K, C ...
DOI:
10.1039/d1cc00125f

14. Pyrene-based metal organic frameworks: from synthesis to applications

Author:
Kinik, F. Pelin; Ortega-Guerrero, Andres; Ongari, Daniele; Ireland, Christopher P.; Smit, Berend
Source:
Chemical Society reviews 2021 v.50 no.5 pp. 3143-3177
ISSN:
1460-4744
Subject:
adsorption,   etc   ; electrochemistry; ligands; luminescence; photocatalysis;     Show all 5 Subjects
Abstract:
... Pyrene is one of the most widely investigated aromatic hydrocarbons given to its unique optical and electronic properties. Hence, pyrene-based ligands have been attractive for the synthesis of metal–organic frameworks (MOFs) in the last few years. In this review, we will focus on the most important characteristics of pyrene, in addition to the development and synthesis of pyrene-based molecules as ...
DOI:
10.1039/d0cs00424c

15. Versatile synthesis of a highly porous DNA/CNT hydrogel for the adsorption of the carcinogen PAH

Author:
Ma, Ge; Zhang, Kena; Wang, Haiqing; Liang, Zhenda; Zhou, Li; Yan, Bing
Source:
Chemical communications 2021 v.57 no.18 pp. 2289-2292
ISSN:
1364-548X
Subject:
adsorption,   etc   ; DNA; carcinogens; emulsions; hydrogels;     Show all 5 Subjects
Abstract:
... Herein, a novel pathway to prepare a porous structured DNA hybrid hydrogel has been described, using a transiently existing Pickering emulsion that is continuously generated during the reaction. The as-prepared highly porous gel features significantly improved capability for trace amounts of PAH removal. ...
DOI:
10.1039/d0cc07066a

16. Congener-dependent conformations of isolated rhamnolipids at the vacuum-water interface: A molecular dynamics simulation

Author:
Euston, Stephen R.; Banat, Ibrahim M.; Salek, Karina
Source:
Journal of colloid and interface science 2021 v.585 pp. 148-157
ISSN:
0021-9797
Subject:
adsorption,   etc   ; molecular dynamics; rhamnolipids; rhamnose;     Show all 4 Subjects
Abstract:
... Molecular dynamics simulation can be used to differentiate between the adsorption properties of rhamnolipid congeners at a vacuum-water interface.Adsorption of five congeners with differing alkyl chains (two C10 chains, two C14 chains or mixed C14C10 and C10C14), number of rhamnose rings (mono- or di-) and carboxyl group charge (non-ionic or anionic) are simulated at the vacuum-water interface.All ...
DOI:
10.1016/j.jcis.2020.11.082

17. Highly regenerative and efficient adsorption of phosphate by restructuring natural palygorskite clay via alkaline activation and co-calcination

Author:
Wei, Yanfu; Guo, Kexin; Wu, Honghai; Yuan, Peng; Liu, Dong; Du, Peixin; Chen, Pengcheng; Wei, Longmeng; Chen, Wei
Source:
Chemical communications 2021 v.57 no.13 pp. 1639-1642
ISSN:
1364-548X
Subject:
adsorption,   etc   ; adsorbents; clay; palygorskite; phosphates;     Show all 5 Subjects
Abstract:
... Herein, we present a new strategy to create a highly regenerative and efficient phosphate adsorbent based on activating natural palygorskite structures. Both the regeneration via alkaline activation and synthesis via co-calcination restructured the palygorskite and created adsorptive metal oxides. The phosphate adsorbent exhibits excellent regeneration performance with high removal capacity. ...
DOI:
10.1039/d0cc07888c

18. Adsorption of proteins to fluid interfaces: Role of the hydrophobic subphase

Author:
Bergfreund, Jotam; Bertsch, Pascal; Fischer, Peter
Source:
Journal of colloid and interface science 2021 v.584 pp. 411-417
ISSN:
0021-9797
Subject:
adsorption,   etc   ; air; hydrophobicity; oils; prediction;     Show all 5 Subjects
Abstract:
... Adsorption of proteins to fluid interfaces is critical in many industries, scientific disciplines, and biological processes. However, the structural transitions of proteins upon adsorption and the effect of the hydrophobic subphase, such as oil, have received little attention. Herein, we present a comprehensive study on the effect of the hydrophobic subphase on the adsorption behavior of globular ...
DOI:
10.1016/j.jcis.2020.09.118

19. Efficient and selective removal of SeVI and AsV mixed contaminants from aqueous media by montmorillonite-nanoscale zero valent iron nanocomposite

Author:
Suazo-Hernández, Jonathan; Manquián-Cerda, Karen; de la Luz Mora, María; Molina-Roco, Mauricio; Angélica Rubio, María; Sarkar, Binoy; Bolan, Nanthi; Arancibia-Miranda, Nicolás
Source:
Journal of hazardous materials 2021 v.403 pp. 123639
ISSN:
0304-3894
Subject:
adsorption,   etc   ; adsorbents; iron; montmorillonite; nanocomposites;     Show all 5 Subjects
Abstract:
... Nanoscale zero-valent iron (NZVI) and NZVI supported onto montmorillonite (NZVI-Mt) were synthetized and used in this study to remove Seⱽᴵ and Asⱽ from water in mono- and binary-adsorbate systems. The adsorption kinetics and isotherm data for Seⱽᴵ and Asⱽ were adequately described by the pseudo-second-order (PSO) (r²>0.94) and Freundlich (r²>0.93) equations. Results from scanning electron microsco ...
DOI:
10.1016/j.jhazmat.2020.123639

20. Outstanding performance of ZnS/TiO2 for the urgent disposal of liquid mercury leakage indoors: Novel support effect, reaction mechanism and kinetics

Author:
Wang, Jian; Mei, Jian; Wang, Chang; Hu, Qixing; Zhang, Xufan; Yang, Shijian
Source:
Journal of hazardous materials 2021 v.403 pp. 123867
ISSN:
0304-3894
Subject:
adsorption,   etc   ; liquids; mercury; reaction mechanisms;     Show all 4 Subjects
Abstract:
... Effectively weakening the bond strength of Zn-S in S-Zn-S on ZnS is of great significance to the improvement of its performance for the urgent disposal of liquid Hg⁰ leakage indoors. In this work, ZnS was loaded on three common supports (i.e., TiO₂, SiO₂, and Al₂O₃) to further improve its performance for capturing high concentrations of Hg⁰ indoors. After being loaded on TiO₂, the S-Zn-O bond was ...
DOI:
10.1016/j.jhazmat.2020.123867