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A photocatalytic reaction kinetics model based on electrical double layer theory(Ⅰ)--Surface complexation model at TiO_2/water interface 被引量：3

A photocatalytic reaction kinetics model based on electrical double layer theory(Ⅰ)--Surface complexation model at TiO_2/water interface
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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.
作者 李新军 李芳柏 何明兴 王良焱 徐悦华 黄琮
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
关键词 二氧化钛 光催化 动力学模型 EDL理论 废水处理 TiO 2 photocatalysis model adsorption
分类号 O643.3 [理学—物理化学]
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中国有色金属学会会刊：英文版
2002年 第4期

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