Optimizing adsorption of arsenic(III) by NH2-MCM-41 using response surface methodology

被引:38
作者
Wu, Yunhai [1 ]
Jin, Yanping [2 ]
Cao, Julin [2 ]
Yilihan, Palizhati [2 ]
Wen, Yajun [2 ]
Zhou, Jianxin [2 ]
机构
[1] Hohai Univ, Key Lab Integrated Regulat & Resources Dev Shallo, Minist Educ, Nanjing 210098, Jiangsu, Peoples R China
[2] Hohai Univ, Coll Environm, Nanjing 210098, Jiangsu, Peoples R China
关键词
NH2-MCM-41; Adsorption; As(III); Response surface methodology; AQUEOUS-SOLUTION; ACTIVATED CARBONS; MIXED-OXIDE; REMOVAL; IRON; OPTIMIZATION; GROUNDWATER; ADSORBENTS; ARSENATE; IONS;
D O I
10.1016/j.jiec.2013.11.009
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Response surface methodology (RSM) was used to optimize process parameters for arsenic (As(III)) removal from aqueous solution using amine-functionalized MCM-41 (NH2-MCM-41). Four independent variables such as pH, initial metal concentration, temperature and adsorbent dosage were investigated. The optimal conditions to remove As(III) by NH2-MCM-41 was found to be pH 5.62, initial As(III) concentration 5.00 mg/L, temperature 20 degrees C and NH2-MCM-41 dosage 5.00 g/L. XRD, FTIR and SEM analyses testified to the obvious change of the surface morphology and the presence of metal on the sorbent after adsorption. (C) 2013 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码:2792 / 2800
页数:9
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