Removal of Cu(II) from aqueous solutions by adsorption process with anatase-type titanium dioxide

被引:89
作者
Kim, MS [1 ]
Hong, KM [1 ]
Chung, JG [1 ]
机构
[1] Sungkyunkwan Univ, Dept Chem Engn, Suwon 440746, Gyunggi Do, South Korea
关键词
copper(II); adsorption; anatase-type titanium dioxide; UV radiation; aqueous solutions;
D O I
10.1016/S0043-1354(03)00227-6
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The experiment was performed in the reactor with suspended anatase-type titanium dioxide particles. The adsorption amount increased rapidly with an increasing pH value from pH 2 to 5 and remained constant over pH 5. The adsorption amount of Cu2+ increased with temperature from 15degreesC to 40degreesC. The adsorption equilibrium constant (K-ads) was 0.854 and adsorption isotherm of Cu2+ adsorption on titanium dioxide was more suitable in Langmuir adsorption isotherm than in Freundlich isotherm. The adsorption rate was rapid with an increasing number of UV lamps of 254 nm. (C) 2003 Published by Elsevier Science Ltd.
引用
收藏
页码:3524 / 3529
页数:6
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