中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Synthesis of Na-A zeolite loaded bentonite and its application for removal of Cu(II) from aqueous solutions

文献类型:期刊论文

作者Huang, Xiao1,3,4; Lang, Lei1,3,4; Li, Jiang-shan1,3,4; Poon, Chi Sun2,4
刊名JOURNAL OF WATER PROCESS ENGINEERING
出版日期2023-12-01
卷号56页码:15
关键词Zeolite Synthesis Bentonite Adsorption Cu(II) ions
ISSN号2214-7144
DOI10.1016/j.jwpe.2023.104359
英文摘要Zeolites are highly valued as adsorbent materials for the removal of heavy metals due to their exceptional adsorption properties, ease of synthesis, stability, and high adsorption capacity. Bentonite is an abundant and cheap adsorption material, and its aluminosilicate layers have large spacing to accommodate massive hydrated ions or macromolecular organics. In this study, bentonite is designed as the carrier material and Na-A zeolite is synthesized between its aluminosilicate layers, in order to obtain a low-cost modified bentonite with high heavy metal adsorption capacity. Results demonstrate that Na-A zeolite could be satisfactorily synthesized between bentonite aluminosilicate layers at a low synthesis temperature (80 degrees C) and short time (10 h). The pseudosecond-order kinetic model is more appropriate for characterizing the Cu(II) adsorption process on Na-A zeolite loaded bentonite, and the Freundlich isotherm is favorable for fitting the experimental data of Cu(II) adsorption. The Cu(II) adsorption mechanism by this composite material involves both ion exchange and chemical bonding, associated with its lamellar and cubic combined microstructure.
资助项目National Key Research and Development Program[2019YFC1804002] ; National Natural Science Foundation of China[42007260]
WOS研究方向Engineering ; Water Resources
语种英语
WOS记录号WOS:001094193900001
出版者ELSEVIER
源URL[http://119.78.100.198/handle/2S6PX9GI/39857]  
专题中科院武汉岩土力学所
通讯作者Li, Jiang-shan
作者单位1.Hubei Prov Key Lab Contaminated Sludge & Soil Sci, Wuhan 430071, Peoples R China
2.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hung Hom, Kowloon, Hong Kong, Peoples R China
3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China
4.IRSM CAS HK PolyU Joint Lab Solid Waste Sci, Wuhan 430071, Peoples R China
推荐引用方式
GB/T 7714
Huang, Xiao,Lang, Lei,Li, Jiang-shan,et al. Synthesis of Na-A zeolite loaded bentonite and its application for removal of Cu(II) from aqueous solutions[J]. JOURNAL OF WATER PROCESS ENGINEERING,2023,56:15.
APA Huang, Xiao,Lang, Lei,Li, Jiang-shan,&Poon, Chi Sun.(2023).Synthesis of Na-A zeolite loaded bentonite and its application for removal of Cu(II) from aqueous solutions.JOURNAL OF WATER PROCESS ENGINEERING,56,15.
MLA Huang, Xiao,et al."Synthesis of Na-A zeolite loaded bentonite and its application for removal of Cu(II) from aqueous solutions".JOURNAL OF WATER PROCESS ENGINEERING 56(2023):15.

入库方式: OAI收割

来源:武汉岩土力学研究所

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