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
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
收藏
页码:143 / 150
页数:8
相关论文
共 58 条
[11]   Selective removal of fluoride ions by a two-way ion-exchange cyclic process [J].
Castel, C ;
Schweizer, M ;
Simonnot, MO ;
Sardin, M .
CHEMICAL ENGINEERING SCIENCE, 2000, 55 (17) :3341-3352
[12]   Removal of fluoride from aqueous solution by using red mud [J].
Çengeloglu, Y ;
Kir, E ;
Ersöz, M .
SEPARATION AND PURIFICATION TECHNOLOGY, 2002, 28 (01) :81-86
[13]  
CHOI WW, 1979, J AM WATER WORKS ASS, V71, P562
[14]   Adsorption of fluoride in aqueous solutions using KMnO4-modified activated carbon derived from steam pyrolysis of rice straw [J].
Hot Lab. Centre, Atomic Energy Authority, Cairo, Egypt .
J. Hazard. Mater., 2007, 1-2 (633-643) :633-643
[15]  
Freundlich H, 1906, Z PHYS CHEM-STOCH VE, V57, P385
[16]   Size-dependent defluoridation properties of synthetic hydroxyapatite [J].
Gao, Shan ;
Sun, Rong ;
Wei, Zhenggui ;
Zhao, Haiyan ;
Li, Huixin ;
Hu, Feng .
JOURNAL OF FLUORINE CHEMISTRY, 2009, 130 (06) :550-556
[17]   Enhanced Arsenic Removal by Hydrothermally Treated Nanocrystalline Mg/Al Layered Double Hydroxide with Nitrate Intercalation [J].
Goh, Kok-Hui ;
Lim, Teik-Thye ;
Dong, Zhili .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2009, 43 (07) :2537-2543
[18]   ADSORPTION CHARACTERISTICS OF FLUORIDE ONTO HYDROUS ALUMINA [J].
HAO, OJ ;
HUANG, CP .
JOURNAL OF ENVIRONMENTAL ENGINEERING-ASCE, 1986, 112 (06) :1054-1069
[19]   Fluoride removal from waters by Donnan dialysis [J].
Hichour, M ;
Persin, F ;
Sandeaux, J ;
Gavach, C .
SEPARATION AND PURIFICATION TECHNOLOGY, 2000, 18 (01) :1-11
[20]   Nanofiltration membrane performance on fluoride removal from water [J].
Hu, Kang ;
Dickson, James M. .
JOURNAL OF MEMBRANE SCIENCE, 2006, 279 (1-2) :529-538