研究论文
赵振国.苯的衍生物在活性炭/水界面上的吸附标准自由能及与其分子结构的关系[J].环境科学学报,2001,21(1):29-33
苯的衍生物在活性炭/水界面上的吸附标准自由能及与其分子结构的关系
- The relationship between changes of standard free energy in adsorption and molecular structure of benzene derivates
- 摘要：测定了25℃时活性炭自水中吸附苯、苯酚、苯胺、对氯苯酚、苯甲酸、对羟基苯甲酸、对氯苯胺、硝基苯、对氨基苯甲酸、对硝基苯酚、对硝基苯胺、对硝基苯甲酸的等温线,它们的等温线均为Langmuir型的.利用Langmuir参数计算了吸附标准自由能变化$G0.计算结果表明,$G0具有加和性,即化合物的$G0是组成该化合物各基团贡献之总和.化合物的分子量及分子连接性指数与$G0有近似的线性关系.
- Abstract：The adsorption isotherms of benzene, phenol, aniline, p-chloroaniline, benzoic acid, p-hydroxybenzoic acid, p-chlorophenol, nitrobenzene, p-aminobenzoic acid, p-nitrophenol, p-nitroaniline, p-nitrobenzoic acid from water onto active carbon were determined at 25℃. The isotherms can be represented by the Langmuir equation. The change of standard free energy $G0 in adsorption process was calculated from Langmuir parameters. The calculated results showed that each functional group can be assumed to make its own contribution to $G0 of a molecule. The relationship of the molecular weight, and the molecular connectivity index to the $G0 was tested.
- Key words：adsorption active carbon benzene derivate thermodynamics of adsorption molecular connectivity in
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