A New Model for Physical Adsorption on Solid Surfaces

李佐虎

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A New Model for Physical Adsorption on Solid Surfaces

更新时间：2025-12-16

- A New Model for Physical Adsorption on Solid Surfaces
- CIESC Journal Issue 3, (1983)
- 作者机构：
  
  中国科学院化工冶金研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 September 1983，
  
  Published：25 September 1983
- 稿件说明：
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李佐虎. A New Model for Physical Adsorption on Solid Surfaces[J]. CIESC Journal, 1983, (3).
DOI：

李佐虎. A New Model for Physical Adsorption on Solid Surfaces[J]. CIESC Journal, 1983, (3). DOI：

摘要

本文扩展了Langmuir单层吸附模型中的单分子作用与吸附能分布假定

提出了一个新的物理吸附模型.Langmuir公式

Freundlich公式

Temkin’公式均为其中的特殊情况.当假定吸附能呈均匀密度分布时

得到吸附等温式:n=kln[1+(b_0P)~(1/m)]

1/M为一个吸附中心平均吸附的吸附质分子的个数.随M与对比压力P/P_0的函数关系不同

可用以统一并定量地描述各种类型的物理吸附等温线.

Abstract

Based on statistics

a new equation shown below was derived to represent the physical adsorption on solid surfaces after modifying the assumptions used by Langmuir for deriving the equation of monomolecular adsorption: or

n= where n amount of adsorption per unit weight or per unit area of solid; p(or C) pressure of gas or concentration of liquid substance; K

b0 & M constants with physical meanings as described in this paper. This equation can be used to represent satisfactorily the five types of physical adsorption as reported in the literatures. Under certain conditions

it can be shown that this equation can be transformed into two widely used empirical equations

one proposed by Freundlich and the other by Temkin.

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