As(III) removal by hydrous titanium dioxide prepared from one-step hydrolysis of aqueous TiCl4 solution

doi:10.1016/j.watres.2010.05.051

IMR OpenIR

	As(III) removal by hydrous titanium dioxide prepared from one-step hydrolysis of aqueous TiCl4 solution
	Xu, Zhengchao 1; Li, Qi 1; Gao, Shian 1; Shang, Jian Ku 1,2
通讯作者	Li, Qi(qili@imr.ac.cn)
	2010-11-01
发表期刊	WATER RESEARCH
ISSN	0043-1354
卷号	44 期号:19 页码:5713-5721
摘要	Hydrous titanium dioxide (TiO2 center dot xH(2)O) nanoparticles were synthesized by a low-cost one-step hydrolysis process with aqueous TiCl4 solution. These TiO2 center dot xH(2)O nanoparticles ranged from 3 to 8 nm and formed aggregates with a highly porous structure, resulting in a large surface area and easy removal capability from aqueous environment after the treatment. Their effectiveness on the removal of As(III) (arsenite) from water was investigated in both laboratory and natural water samples. The adsorption capacity on As(III) of these TiO2 center dot xH(2)O nanoparticles reached over 83 mg/g at near neutral pH environment, and over 96 mg/g at pH 9.0. Testing with a As(III) contaminated natural lake water sample confirmed the effectiveness of these TiO2 center dot xH(2)O nanoparticles in removing As(III) from natural water. The high adsorption capacity of the TiO2 center dot xH(2)O nanoparticles is related to the high surface area, large pore volume, and the presence of high affinity surface hydroxyl groups. (C) 2010 Elsevier Ltd. All rights reserved.
关键词	Hydrous titanium dioxide Arsenite Adsorption High arsenic removal ability
资助者	National Basic Research Program of China ; Institute of Metal Research
DOI	10.1016/j.watres.2010.05.051
收录类别	SCI
语种	英语
资助项目	National Basic Research Program of China[2006CB601201] ; Institute of Metal Research[Y0N5A111A1]
WOS研究方向	Engineering ; Environmental Sciences & Ecology ; Water Resources
WOS类目	Engineering, Environmental ; Environmental Sciences ; Water Resources
WOS记录号	WOS:000285438700018
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：101[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/101506
专题	中国科学院金属研究所
通讯作者	Li, Qi
作者单位	1.Chinese Acad Sci, Inst Met Res, Mat Ctr Water Purificat, Shenyang 110016, Peoples R China 2.Univ Illinois, Dept Mat Sci & Engn, Urbana, IL 61801 USA
推荐引用方式 GB/T 7714	Xu, Zhengchao,Li, Qi,Gao, Shian,et al. As(III) removal by hydrous titanium dioxide prepared from one-step hydrolysis of aqueous TiCl4 solution[J]. WATER RESEARCH,2010,44(19):5713-5721.
APA	Xu, Zhengchao,Li, Qi,Gao, Shian,&Shang, Jian Ku.(2010).As(III) removal by hydrous titanium dioxide prepared from one-step hydrolysis of aqueous TiCl4 solution.WATER RESEARCH,44(19),5713-5721.
MLA	Xu, Zhengchao,et al."As(III) removal by hydrous titanium dioxide prepared from one-step hydrolysis of aqueous TiCl4 solution".WATER RESEARCH 44.19(2010):5713-5721.