The adsorption of Sb(III) in aqueous by KMnO4-modified activated carbon

被引：3
作者：
Wang, Xiao-Hui [1 ]
Yu, Ting-Chao [1 ]
Li, Cong [1 ]
Ye, Miao-Miao [1 ]
机构：
[1] Department of Civil Engineering, Zhejiang University
来源：
Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science) | 2012年 / 46卷 / 11期
关键词：
Adsorption; KMnO[!sub]4[!/sub]-modified activated carbon; Sb(III);
D O I：
10.3785/j.issn.1008-973X.2012.11.014
中图分类号：
学科分类号：
摘要：
In order to improve the adsorption efficiency, granular activated carbon was modified with different concentration of KMnO4 solution under reflux condensation. The characteristics of the four activated carbons was analyzed by scanning electron microscopy (SEM), laser particle size analyzer and specific surface area tests (BET), surface functional groups are examed by Fourier transform infrared spectrometer (FTIR). The static adsorption study involved effect of pH, adsorbate concentration, adsorbent dosage, contact time and temperature. The results indicate that under the initial Sb(III) concentration of 1.5 mg/L, adsorbents dosage of 1.5 g/L, temperature of 298 K, and pH value of 3.00, 0.01 mol/L KMnO4, 0.05 mol/L KMnO4 and the 0.1 mol/L KMnO4, the removal of antimony by activated carbon modified is respectively 87.38%, 97.85% and 99.04%. The experimental data obtained are in good assistant-with the Freundlich adsorption isotherm. In addition, it is found that the pH values have great impacts on the adsorption efficiency.
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页码：2028 / 2034+2067
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