A Thermodynamic Study of the Adsorption of Organic Dyes on Palygorskite Clay
详细信息
- 责任者：Hao Yanling (School of Chemical and Biological Engineering ; Lanzhou Jiaotong University ; Lanzhou 730070 ; China) ; Wang Yuan
- 刊名：Acta Petrologica et Mineralogica
- 出版年：2009
- 卷期：28(6)
- 关键词：坡缕石 ; palygorskite
- 页码：p.661-664
- 图表：3 illus., 2 tables, 16 refs.
- 分类号：0700
- issnNo：ISSN1000-6524
- isbnNo：CN11-1966/P
摘要
The adsorption isotherms of such organic dyes as methylene blue, crystal violet and aniline blue in water on palygorskite based on the purification of Jingyuan palygorskite clay were studied through static adsorption experiments, with a discussion on the thermodynamic characteristics. The results show that the equilibrium of the three kinds of dyes can be reached in about 30 minutes in the range of experiment temperatures, the adsorption isotherms of these three dyes on purified palygorskite fit Langmuir model fairly well, and the saturated adsorption capacities from Langmuir models are in order of crystal violet>methylene blue>aniline blue.