摘要
The kinetics of photocatalysis can be usually described by Langmiur Hinshelwood adsorption expression. The adsorption can be greatly influenced by the surface properties of photocatalyst. Triple layer model (TLM) was chosen to describe the surface adsorption of TiO 2 based on electrical double layer (EDL) theory at the TiO 2/water interface. And through the potentiometric titration the parameters of TLM were determined by the extrapolation method and Fiteql3.1 software. The results show that surface complexation dominates the surface charge and the numerical calculation fits the experiment data satisfactorily.
The kinetics of photocatalysis can be usually described by Langmiur Hinshelwood adsorption expression. The adsorption can be greatly influenced by the surface properties of photocatalyst. Triple layer model (TLM) was chosen to describe the surface adsorption of TiO 2 based on electrical double layer (EDL) theory at the TiO 2/water interface. And through the potentiometric titration the parameters of TLM were determined by the extrapolation method and Fiteql3.1 software. The results show that surface complexation dominates the surface charge and the numerical calculation fits the experiment data satisfactorily.
出处
《中国有色金属学会会刊:英文版》
CSCD
2002年第4期792-797,共6页
Transactions of Nonferrous Metals Society of China
基金
Project( 0 10 873and 0 10 15 1)supportedbyGuangdongNaturalScienceFoundation
Project(A30 40 30 1)supportedbyGuang dongScience&TechnologyDevelopmentFoundation