文献类型：期刊文献

英文题名：Enhanced removal of methylene blue from wastewater by alginate/ carboxymethyl cellulose-melamine sponge composite

作者：Zeng, Yang[1];Tang, Xiangtao[1];Qin, Yan[1];Maimaiti, Adila[1];Zhou, Xudong[1];Guo, Yujie[1];Liu, Xin[1];Zhang, Wenqing[1];Gao, Jie[2];Zhang, Lingfan[1,3]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[2]BioLink Pharmaceut Applicat Syst Jiangsu Co Ltd, Nantong 226503, Peoples R China;[3]East China Univ Sci & Technol, Res Ctr Anal & Test, Shanghai 200237, Peoples R China

年份：2023

卷号：244

外文期刊名：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES

收录：;EI(收录号：20232614306158);WOS:【SCI-EXPANDED(收录号:WOS:001022417700001)】；

基金：Acknowledgments This work was supported by the Ministry of Science and Technology of the People's Republic China, China National Key Research and Development Program (Grant number: 2020YFC1522501) and the Na-tional Natural Science of China (grant number 21407050) . The authors thanked the Research Centre of Analysis and Test of East China Uni-versity of Science and Technology for help on data and characterization.

语种：英文

外文关键词：Melamine sponge; Methylene blue adsorption; Alginate; carboxymethyl cellulose composite

摘要：Industrial dye wastewater poses a threat to human health due to its harmful effects, and the treatment of related wastewater is receiving increasing attention. In this paper, the melamine sponge with high porosity and convenient separation was selected as matrix material, and alginate/carboxymethyl cellulose-melamine sponge composite (SA/CMC-MeS) was prepared through crosslinking strategy. Not only does the composite cleverly combined the merits of alginate and carboxymethyl cellulose, it also enhanced the adsorption performance for methylene blue (MB). The adsorption data manifested that the adsorption process of SA/CMC-MeS agreed with the Langmuir model and pseudo-second-order kinetic model, and theoretical maximum adsorption capacity was 230 mg/g (pH 8). The characterization results demonstrated that the adsorption mechanism was attributed to the electrostatic attraction between the carboxyl anions on the composite and the dye cations in solution. Importantly, SA/CMC-MeS could selectively separate MB from binary dye system and had positive anti-interference ability in the face of coexisting cations. After 5 times of cycles, the adsorption efficiency remained above 75 %. Based on these outstanding practical properties, this material has a potential to solve dye contamination.