Preparation of granular hydrogel composite by the redox couple for efficient and fast adsorption of La(III) and Ce(III)

CORC > 兰州化学物理研究所 > 中国科学院兰州化学物理研究所 > 环境材料与生态化学研究发展中心

	Preparation of granular hydrogel composite by the redox couple for efficient and fast adsorption of La(III) and Ce(III)
	Zhu YF(朱永峰)1,2 ; Zheng YA(郑易安)1 ; Wang AQ(王爱勤)1,3 ; Wang AQ(王爱勤)
刊名	Journal of Environmental Chemical Engineering
	2015
卷号	3 期号:2 页码:1416-1425
关键词	Granular Hydrogel composite Redox couple Adsorption La(III) Ce(III)
ISSN号	2213-3437
通讯作者	王爱勤
英文摘要	A series of granular grafted hydrogel composites were prepared at room temperature and atmospheric conditions by aqueous radical polymerization initiated by the redox couple Vc/H₂O₂ using chitosan (CTS) as the backbone, acrylic acid (AA) as the monomer, and attapulgite (APT) as the inorganic component, and the resulting products, labeled as CTS-g-PAA/APT, were then applied as the adsorbent to adsorption La(III) and Ce(III) from aqueous solution. The variables affecting the adsorption capacity for La(III) and Ce(III) were investigated, including the contact time, initial concentration, pH, and APT content, etc. The results show that the as-prepared adsorbent has fast adsorption rate and high adsorption capacity for La(III) and Ce(III) in a wide pH range. The adsorption equilibrium for La(III) and Ce(III) can be reached within 40 min and the maximum adsorption capacity for La(III) and Ce(III) is 333.33 and 243.90 mg/g, respectively. An appropriate addition of APT is beneficial for the adsorption process, Finally, the regeneration ability was evaluated for the hydrogel composite, with the observation that after five consecutive adsorption–desorption cycles, the composite still has a good adsorption capacity for La(III) and Ce(III). These information imply that the hydrogel composite can be used as an effective adsorbent for the removal and recovery of La(III) and Ce(III) from aqueous solution.
学科主题	环境材料与生态化学
资助信息	the National Natural Science Foundation of China (21107116;21377135;21477135;51403221);“863” Project of the Ministry of Science and Technology, China (2013AA032003)
语种	英语
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/18855]
专题	兰州化学物理研究所_环境材料与生态化学研究发展中心
通讯作者	Wang AQ(王爱勤)
作者单位	1.Center of Eco-material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Tianshui Middle Road 18#, Lanzhou 730000, PR China 2.Graduate University of the Chinese Academy of Sciences, Beijing 100049, PR China 3.Center of Xuyi Palygorskite Applied Technology, Lanzhou Institute of Chemical Physics, Chinese Academy of Science, Xuyi 211700, PR China
推荐引用方式 GB/T 7714	Zhu YF,Zheng YA,Wang AQ,et al. Preparation of granular hydrogel composite by the redox couple for efficient and fast adsorption of La(III) and Ce(III)[J]. Journal of Environmental Chemical Engineering,2015,3(2):1416-1425.
APA	Zhu YF,Zheng YA,Wang AQ,&王爱勤.(2015).Preparation of granular hydrogel composite by the redox couple for efficient and fast adsorption of La(III) and Ce(III).Journal of Environmental Chemical Engineering,3(2),1416-1425.
MLA	Zhu YF,et al."Preparation of granular hydrogel composite by the redox couple for efficient and fast adsorption of La(III) and Ce(III)".Journal of Environmental Chemical Engineering 3.2(2015):1416-1425.