胡敏酸改性膨润土同时吸附铜离子和2,4-二氯苯酚

化工进展

胡敏酸改性膨润土同时吸附铜离子和2,4-二氯苯酚

郑敏，金晓英，王清萍，陈祖亮

福建师范大学化学与材料学院，福建福州 350007

出版日期:2010-09-05 发布日期:2010-09-05

Simultaneous adsorption of copper ions and 2,4-dichlorophenol with

ZHENG Min，JIN Xiaoying，WANG Qingping，CHEN Zuliang

College of Chemistry and Materials Science，Fujian Normal University，Fuzhou 350007，Fujian，China

Online:2010-09-05 Published:2010-09-05

摘要/Abstract

摘要：

从腐殖酸中提取胡敏酸用于改性膨润土，并研究改性膨润土对铜离子和2,4-二氯苯酚混合液的吸附性能。实验结果表明：吸附剂量为4 g/L时，在室温和pH值为4～6的条件下，对100 mg/L的混合液吸附60 min后效果最好。改性土对铜离子最高吸附量达到23 mg/g，对2,4-二氯苯酚的最大吸附量达到16 mg/g。吸附符合Langmuir吸附等温方程以及伪二级动力学模式。

Abstract:

Humic acid refined from humus acid was used for the modification of bentonite，and then the modified bentonite was used for the simultaneous adsorption of copper ions and 2,4-dichlorophenol. Experimental results indicated that the optimum adsorption could be achieved with 4 g/L adsorbent under room temperature for 100 mg/L mixed solution with pH 4—6 in 60 minutes，through which the maximum adsorption capacity for copper ions and 2,4-dichlorophenol was up to 23 mg/L and 16 mg/L，respectively. The adsorption was fitted well with Langmuir isotherm and the pseudo-second-order model.

郑敏，金晓英，王清萍，陈祖亮. 胡敏酸改性膨润土同时吸附铜离子和2,4-二氯苯酚 [J]. 化工进展.

ZHENG Min，JIN Xiaoying，WANG Qingping，CHEN Zuliang. Simultaneous adsorption of copper ions and 2,4-dichlorophenol with[J]. Chemical Industry and Engineering Progree.