KINETICS OF PARTICLE DETACHMENT .1. GENERAL-CONSIDERATIONS

被引:13
作者
BAROUCH, E [1 ]
WRIGHT, TH [1 ]
MATIJEVIC, E [1 ]
机构
[1] CLARKSON UNIV,DEPT CHEM,POTSDAM,NY 13676
关键词
DIFFUSION - Mathematical Models - KINETICS - Desorption - SURFACES - Desorption;
D O I
10.1016/0021-9797(87)90483-8
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The kinetics of detachment of particles from flat surfaces is studied in terms of a solution of the Kramers diffusion equation. The force is obtained from a superposition of electrostatic, van der Waals, and Born wall energies. Analytic expression for the fraction of particles remaining inside the potential well is obtained as an explicit function of time. It is shown that the detachment caused by diffusion is not the first-order process.
引用
收藏
页码:473 / 481
页数:9
相关论文
共 11 条
[1]   DOUBLE-LAYER INTERACTIONS OF UNLIKE SPHERES .3. NONLINEAR AND TWO-DIMENSIONAL EFFECTS [J].
BAROUCH, E ;
MATIJEVIC, E .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1985, 105 (02) :552-559
[2]   DOUBLE-LAYER INTERACTIONS OF UNLIKE SPHERES .2. NUMERICAL-ANALYSIS OF ELECTROSTATIC INTERACTION ENERGY [J].
BAROUCH, E ;
MATIJEVIC, E ;
WRIGHT, TH .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1985, 81 :1819-1832
[3]   EXACT TIME-DEPENDENT ANALYSIS FOR KRAMERS EQUATION [J].
BAROUCH, E ;
DRESDEN, M .
PHYSICS LETTERS A, 1969, A 29 (07) :378-&
[4]  
BAROUCH E, 1985, J CHEM SOC F1, V81, P1979
[5]  
BAROUCH E, IN PRESS J COLLOID I
[7]   KINETIC-THEORY OF ESCAPE OF PARTICLES FROM SURFACES [J].
DAHNEKE, B .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1975, 50 (01) :89-107
[8]   MUTUAL COAGULATION OF COLLOIDAL DISPERSIONS [J].
HOGG, R ;
HEALY, TW ;
FUERSTENAU, DW .
TRANSACTIONS OF THE FARADAY SOCIETY, 1966, 62 (522P) :1638-+
[9]   Brownian motion in a field of force and the diffusion model of chemical reactions [J].
Kramers, HA .
PHYSICA, 1940, 7 :284-304
[10]   PARTICLE ADHESION AND REMOVAL IN MODEL SYSTEMS .3. MONODISPERSED FERRIC-OXIDE ON STEEL [J].
KUO, RJ ;
MATIJEVIC, E .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1980, 78 (02) :407-421