Adsorption of ［BMIM］Cl ionic liquid by acid-modified bentonite

LI Xuehui; LI Shuai; WANG Furong; XI Hongxia; WANG Lefu

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Adsorption of ［BMIM］Cl ionic liquid by acid-modified bentonite

更新时间：2025-12-10

- Adsorption of ［BMIM］Cl ionic liquid by acid-modified bentonite
- CIESC Journal Issue 6, Pages: 1489-1493(2007)
- 作者机构：
  
  华南理工大学化工与能源学院
- 作者简介：
- 基金信息：
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  CLC：
- Online First：05 June 2007，
  
  Published：05 June 2007
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LI Xuehui, LI Shuai, WANG Furong, et al. Adsorption of ［BMIM］Cl ionic liquid by acid-modified bentonite[J]. CIESC Journal, 2007, (6): 1489-1493.
DOI：

LI Xuehui, LI Shuai, WANG Furong, et al. Adsorption of ［BMIM］Cl ionic liquid by acid-modified bentonite[J]. CIESC Journal, 2007, (6): 1489-1493. DOI：

摘要

利用酸改性膨润土对低浓度［BMIM］Cl离子液体水溶液的吸附性能进行研究;考察了吸附温度、吸附时间、溶液pH值等吸附条件对离子液体的吸附率的影响。结果表明;酸改性膨润土对［BMIM］Cl的阳离子具有良好的吸附作用。在中性溶液中;酸改性膨润土对离子液体具有最大的吸附率。酸改性膨润土对离子液体的吸附过程是放热过程且属于Langmuir等温吸附;同时;得到膨润土上离子液体吸附的Langmuir等温方程且相关系数大于0.99。

Abstract

Acid-modified bentonite was used for the adsorption of low concentration ［BMIM］Cl ionic liquid solution.The effect of adsorption temperature;adsorption time and pH value of ionic liquid solution on the adsorption properties was investigated.Experimental results showed that acid-modified bentonite had good adsorption properties for the cation of ［BMIM］Cl ionic liquid.In the neutral solution;acid-modified bentonite had the maximum adsorption capacity for ［BMIM］Cl.The adsorption process of ［BMIM］Cl by acid-modified bentonite was exothermic and belonged to the Langmuir isothermal adsorption.At the same time;the Langmuir isothermal adsorption equation was obtained and the correlation coefficient was larger than 0.99.

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