As(III) removal by hydrous titanium dioxide prepared from one-step hydrolysis of aqueous TiCl(4) solution

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	As(III) removal by hydrous titanium dioxide prepared from one-step hydrolysis of aqueous TiCl(4) solution
	Z. C. Xu; Q. Li; S. A. Gao; J. K. Shang
	2010
发表期刊	Water Research
ISSN	0043-1354
卷号	44 期号:19 页码:5713-5721
摘要	Hydrous titanium dioxide (TiO(2)center dot xH(2)O) nanoparticles were synthesized by a low-cost one-step hydrolysis process with aqueous TiCl(4) solution. These TiO(2)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 TiO(2)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 TiO(2)center dot xH(2)O nanoparticles in removing As(III) from natural water. The high adsorption capacity of the TiO(2)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.
部门归属	[xu, zhengchao; li, qi; gao, shian; shang, jian ku] chinese acad sci, inst met res, mat ctr water purificat, shenyang 110016, peoples r china. [shang, jian ku] univ illinois, dept mat sci & engn, urbana, il 61801 usa.;li, q (reprint author), chinese acad sci, inst met res, mat ctr water purificat, shenyang 110016, peoples r china;qili@imr.ac.cn
关键词	Hydrous Titanium Dioxide Arsenite Adsorption High Arsenic Removal Ability In-ground Water Arsenic Removal Drinking-water Public-health Adsorption Oxidation Tio2 Nanoparticles Contamination Adsorbent
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31615
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. C. Xu,Q. Li,S. A. Gao,et al. As(III) removal by hydrous titanium dioxide prepared from one-step hydrolysis of aqueous TiCl(4) solution[J]. Water Research,2010,44(19):5713-5721.
APA	Z. C. Xu,Q. Li,S. A. Gao,&J. K. Shang.(2010).As(III) removal by hydrous titanium dioxide prepared from one-step hydrolysis of aqueous TiCl(4) solution.Water Research,44(19),5713-5721.
MLA	Z. C. Xu,et al."As(III) removal by hydrous titanium dioxide prepared from one-step hydrolysis of aqueous TiCl(4) solution".Water Research 44.19(2010):5713-5721.