Effect of temperature on equilibrium adsorption of phenols onto nonionic polymeric resins

被引：74

作者：

Juang, RS ^{[1
]}

Shiau, JY ^{[1
]}

Shao, HJ ^{[1
]}

机构：

[1] Yuan Ze Univ, Dept Chem Engn, Chungli 320, Taiwan

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 1999年 / 34卷 / 09期

关键词：

equilibrium adsorption; phenol; 4-chlorophenol; nonionic polymeric resins; temperature effect;

D O I：

10.1081/SS-100100740

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The amounts of equilibrium adsorption of phenol and 4-chlorophenol from aqueous solutions on nonionic polymeric resins were measured in the 288-318 K temperature range. In general, these polymeric resins have a higher capacity for 4-chlorophenol at low solute concentrations but for phenol at higher solute concentrations. The adsorption data for both phenols were presented in terms of the number of adsorbed monolayers and the fraction of pore volume filled due to poor fit by the widely used Langmuir, Freundlich, and BET equations over the entire concentration range (100-3000 g/m(3)). Finally, the isosteric enthalpies of adsorption were determined. They decreased with increasing surface coverage.

引用

页码：1819 / 1831

页数：13

共 23 条

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