文献类型：期刊文献

英文题名：Superior capacity and easy separation of zirconium functionalized chitosan melamine foam for antimony(III/V) removal

作者：Qin, Yan[1];Tang, Xiangtao[1];Zhong, Xingyu[1];Zeng, Yang[1];Zhang, Wenqing[1];Xin, Liu[1];Zhang, Lingfan[1,2]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Res Ctr Anal & Test, Shanghai 200237, Peoples R China

年份：2024

卷号：257

外文期刊名：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES

收录：;EI(收录号：20235015221104);WOS:【SCI-EXPANDED(收录号:WOS:001137685400001)】；

基金：Funding: This work was supported by the National Natural Science Foundation of China [grant number 21407050] . We also thank the Research Center of Analysis and Test (ECUST) for help on data and characterization.

语种：英文

外文关键词：Chitosan; Antimony adsorption; Melamine foam

摘要：Nowadays, highly toxic antimony has severely posed threat to water sources and jeopardized human health. Fabricating adsorbents with the capability of easy separation, high efficiency and large adsorption capacity remains a major challenge. In this paper, zirconium functionalized chitosan melamine foam (ZCMF) was fabricated with zirconium and chitosan crosslinked onto melamine foam, then utilized for the removal of antimony (III/V) in water. The characterization of SEM and EDS collectively showed that ZCMF has a porous structure which could boost the mass transfer rate and zirconium ions on the surface could provide plentiful active adsorption sites. Systematic adsorption experiments demonstrated that the experimental data of Sb(III) and Sb(V) were consistent with the pseudo-second-order and Elovich kinetic models, respectively, and the Langmuir maximum adsorption capacities were separately 255.35 mg g-1 (Sb(III)) and 414.41 mg g-1 (Sb(V)), which displayed prominent performance among adsorbents derived from biomass. Combining the XPS and FTIR characterization with experimental data, it is rational to speculate that ZCMF could remove Sb from aqueous solution through ligand exchange, electrostatic attraction, and surface complexation mechanisms. ZCMF exhibited excellent performance, including large adsorption capacity, easy separation, facile preparation and eco-friendliness. It could be a promising new adsorbent for the treatment of antimony-containing wastewater.