Enhanced Arsenite Adsorption onto Litchi-Like Al-Doped Iron Oxides

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	Enhanced Arsenite Adsorption onto Litchi-Like Al-Doped Iron Oxides
	R. H. Li; Q. Li; S. A. Gao; J. K. Shang
	2011
发表期刊	Journal of the American Ceramic Society
ISSN	0002-7820
卷号	94 期号:2 页码:584-591
摘要	Iron-aluminum complex hydroxide/oxides were synthesized from a hydrothermal process, and litchi-like Al-doped iron oxide nanoparticles were then obtained by removing extra boehmite nanoplates with NaOH washing. While the hydrothermal synthesis induced doping of iron oxide by Al, with the Al dopant concentration increasing with the Al-Fe molar ratio, removal of boehmite greatly increased the specific surface area (SSA) of these Al-doped iron oxide nanoparticles. The resulting litchi-like Al-doped iron oxide nanoparticles were found to strongly adsorb As(III) from aqueous environment at neutral pH without preoxidation., and the As(III) (arsenite) adsorption capacity of Al-doped iron oxides increased with the increase of the initial ratio of Al/Fe in the hydrothermal process, reaching as high as 2.5 times the adsorption capacity of pure iron oxide. The enhanced arsenite adsorption was shown to result from the increases in the amount of the surface hydroxyl group as well as in the SSA of Al-doped iron oxide nanoparticles.
部门归属	[li, ronghui; li, qi; gao, shian; shang, jian ku] chinese acad sci, mat ctr water purificat, inst met res, shenyang 110016, peoples r china. [shang, jian ku] univ illinois, dept mat sci & engn, urbana, il 61801 usa.;shang, jk (reprint author), chinese acad sci, mat ctr water purificat, inst met res, shenyang 110016, peoples r china;jkshang@illinois.edu
关键词	Arsenate Adsorption Mesoporous Alumina Surface-properties Activated Alumina Inner-sphere Alpha-feooh Removal Goethite Adsorbent Water
URL	查看原文
WOS记录号	WOS:000286830100048
引用统计	被引频次：23[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/321006/30481
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	R. H. Li,Q. Li,S. A. Gao,et al. Enhanced Arsenite Adsorption onto Litchi-Like Al-Doped Iron Oxides[J]. Journal of the American Ceramic Society,2011,94(2):584-591.
APA	R. H. Li,Q. Li,S. A. Gao,&J. K. Shang.(2011).Enhanced Arsenite Adsorption onto Litchi-Like Al-Doped Iron Oxides.Journal of the American Ceramic Society,94(2),584-591.
MLA	R. H. Li,et al."Enhanced Arsenite Adsorption onto Litchi-Like Al-Doped Iron Oxides".Journal of the American Ceramic Society 94.2(2011):584-591.