Superb fluoride and arsenic removal performance of highly ordered mesoporous aluminas

被引：126

作者：

Li, Wei ^{[1
,2
]}

Cao, Chang-Yan ^{[1
]}

Wu, Ling-Yan ^{[1
,2
]}

Ge, Mao-Fa ^{[1
]}

Song, Wei-Guo ^{[1
]}

机构：

[1] Chinese Acad Sci, Key Lab Mol Nanostruct & Nanotechnol, Inst Chem, Beijing Natl Lab Mol Sci BNLMS, Beijing 100190, Peoples R China

[2] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2011年 / 198卷

基金：

中国国家自然科学基金;

关键词：

Mesoporous aluminas; Fluoride; Arsenic; Adsorption; Water treatment; DRINKING-WATER; AQUEOUS-SOLUTION; METAL-OXIDES; NANO-SCALE; ADSORPTION; EQUILIBRIUM; COPRECIPITATION; REACTIVITY; MINERALOGY; ION;

D O I：

10.1016/j.jhazmat.2011.10.025

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Highly ordered mesoporous aluminas and calcium-doped aluminas were synthesized through a facile and reproducible method. Their fluoride adsorption characteristics, including adsorption isotherms, adsorption kinetics, the effect of pH and co-existing anions were investigated. These materials exhibited strong affinity to fluoride ions and extremely high defluoridation capacities. The highest defluoridation capacity value reached 450 mg/g. These materials also showed superb arsenic removal ability. 1 g of mesoporous alumina was able to treat 200 kg of arsenic contaminated water with a pH value of 7, reducing the concentration of arsenate from 100 ppb to 1 ppb. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：143 / 150

页数：8

共 58 条

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