液/固吸附计量置换模型及其热力学  

Stoichiometric displacement model for adsorption from liquid/solid system and its thermdynamics

作　　者：耿信鹏[1] 

机构地区：[1]西北纺织工学院化学化工系,陕西西安710048

出　　处：《纺织高校基础科学学报》2001年第2期95-101,共7页Basic Sciences Journal of Textile Universities

基　　金：陕西省自然科学基金资助项目 (97H1 5 )

摘　　要：综述了新近发展的液 /固吸附定量理论——吸附计量置换模型 ( SDM-A) ,以及依据SDM-A所发展的热力学理论 .扼要介绍了 SDM-A的理论依据、数学表达式、线性关系、线性吸附参数 ,并与常用的 L angmuir模型和 Freundlich经验式作了比较 .特别是介绍了依据SDM-A和能量加和原理 ,将传统的置换吸附总的热力学函变分成溶质吸附和溶剂解吸的相应两个热力学函变分量的新进展 .展望了这些研究的应用前景 .A recently developed theory for adsorption on a liquid/solid interface,the stoichiometric displacement model for adsorption(SDM A) and its thermodynamics based on the SDM A, is summarized in this paper. The theoretical base of the SDM A,its mathematical expressions, linear relationships and linear adsorption parameters are introduced in it. Meanwhile, a comparison between the SDM A and the langmuir model as well as the Freundlich empirical equation which are frequently used is made. More importantly, the advanced progress that the traditional (total) thermodynamic function changes for displacement adsorption are divided into two corresponding fractions of them which belong to,respectively,ones of solute adsorption and of solvent desorption according to the SDM A and the principle of energy addition is introduced, and also an outlook into the application prospect of these studies is made.

关 键 词：液/固体系 计量置换模型 热力学 液固吸附 

分 类 号：O647.3[理学—物理化学]