气候变化领域集成服务门户(CCPortal): Pb(II) removal from water using porous hydrogel of chitosan-2D montmorillonite

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DOI	10.1016/j.ijbiomac.2019.01.098
	Pb(II) removal from water using porous hydrogel of chitosan-2D montmorillonite
	Wang, Wei; Zhao, Yunliang; Yi, Hao; Chen, Tianxing; Kang, Shichang; Zhang, Tingting; Rao, Feng; Song, Shaoxian
发表日期	2019
ISSN	0141-8130
EISSN	1879-0003
卷号	128
英文摘要	An eco-friendly chitosan-2D montmorillonite (CTS/2DMMT) hydrogel with the characteristics of high surface area, porous structure and easy separation as a new type of adsorbent was investigated. Hydrogel was prepared via self-assembling 2DMMT and CTS. 2DMMT and hydrogel were characterized by particle size analysis, SEM and AFM, respectively. The results showed the 2DMMT was well exfoliated and the porosity of hydrogel's structure could be adjusted by the CTS/2DMMT ratio. The effect of pH, adsorption kinetics and adsorption isotherm of Pb (II) from aqueous solution onto hydrogels were investigated. Adsorption could proceed without the pH adjustment and hydrogel with a looser structure has better adsorption effectiveness. The Pseudo-first-order kinetics model and Freundlich isotherm model could fit well with the Pb(II) adsorption process onto hydrogel. The adsorption mechanism was the ion-exchange according to the analysis of XPS and EDS. (C) 2019 Elsevier B.V. All rights reserved.
关键词	2D montmorillonite Self-assembly hydrogel Porous structure Pb(II) removal
学科领域	Biochemistry & Molecular Biology; Chemistry; Polymer Science
语种	英语
WOS研究方向	Biochemistry & Molecular Biology ; Chemistry, Applied ; Polymer Science
来源期刊	INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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/112032
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	Wang, Wei,Zhao, Yunliang,Yi, Hao,et al. Pb(II) removal from water using porous hydrogel of chitosan-2D montmorillonite[J]. 中国科学院西北生态环境资源研究院,2019,128.
APA	Wang, Wei.,Zhao, Yunliang.,Yi, Hao.,Chen, Tianxing.,Kang, Shichang.,...&Song, Shaoxian.(2019).Pb(II) removal from water using porous hydrogel of chitosan-2D montmorillonite.INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES,128.
MLA	Wang, Wei,et al."Pb(II) removal from water using porous hydrogel of chitosan-2D montmorillonite".INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES 128(2019).