期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 198, 期 -, 页码 143-150出版社
ELSEVIER
DOI: 10.1016/j.jhazmat.2011.10.025
关键词
Mesoporous aluminas; Fluoride; Arsenic; Adsorption; Water treatment
资金
- National Natural Science Foundation of China (NSFC) [50725207, 20821003]
- National Basic Research Program of China [2009CB930400, 2011CB933700]
- Chinese Academy of Sciences
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.
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