气候变化领域集成服务门户(CCPortal): Removal of methylene blue from water with montmorillonite nanosheets/chitosan hydrogels as adsorbent

CCPortal

DOI	10.1016/j.apsusc.2018.04.037
	Removal of methylene blue from water with montmorillonite nanosheets/chitosan hydrogels as adsorbent
	Kang, Shichang; Zhao, Yunliang; Wang, Wei; Zhang, Tingting; Chen, Tianxing; Yi, Hao; Rao, Feng; Song, Shaoxian
发表日期	2018
ISSN	0169-4332
EISSN	1873-5584
卷号	448
英文摘要	In this work, self-assembled hydrogels were prepared with exfoliated montmorillonite nanosheets (MMTNS) and chitosan (CS) as the adsorbent for removing methylene blue (MB) from water. Adsorption properties were determined by studying the kinetics and thermodynamic of MB adsorption onto the hydrogels from aqueous solutions, and AFM, FTIR, SEM, and XPS were used for the characterization of the MMTNS and hydrogels. The experimental results have shown that the montmorillonite nanosheets/chitosan hydrogels were superb adsorbents for removing MB from water, reaching the maximum adsorption capacity of 530 mg/g. The adsorption well followed the pseudo-second-order kinetics and Langmuir isotherm, and was spontaneous endothermic. The adsorption of MB on the hydrogels could be easily realized through cation exchange and hydrogen binding. It was also found that the hydrogels prepared with lower solid concentration of MMTNS had a looser stratified structure and thus a greater adsorption capacity for MB in aqueous solutions. (C) 2018 Elsevier B.V. All rights reserved.
关键词	Montmorillonite Nanosheets Methylene blue Self-assembly hydrogels Adsorption
学科领域	Chemistry; Materials Science; Physics
语种	英语
WOS研究方向	Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
来源期刊	APPLIED SURFACE SCIENCE
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111951
作者单位	Wuhan Univ Technol, Sch Resources & Environm Engn, Luoshi Rd 122, Wuhan 430070, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Kang, Shichang,Zhao, Yunliang,Wang, Wei,et al. Removal of methylene blue from water with montmorillonite nanosheets/chitosan hydrogels as adsorbent[J]. 中国科学院西北生态环境资源研究院,2018,448.
APA	Kang, Shichang.,Zhao, Yunliang.,Wang, Wei.,Zhang, Tingting.,Chen, Tianxing.,...&Song, Shaoxian.(2018).Removal of methylene blue from water with montmorillonite nanosheets/chitosan hydrogels as adsorbent.APPLIED SURFACE SCIENCE,448.
MLA	Kang, Shichang,et al."Removal of methylene blue from water with montmorillonite nanosheets/chitosan hydrogels as adsorbent".APPLIED SURFACE SCIENCE 448(2018).