文献类型：期刊文献

中文题名：室内空气中三氯乙烯在TiO_2/AC上的光催化氧化反应动力学

英文题名：KINETIC STUDY OF PHOTOCATALYTIC OXIDATION OF TRICHLOROETHYLENE OVER TiO_2/AC IN INDOOR AIR

作者：戴智铭[1];陈爱平[1];古政荣[1];古宏晨[1];朱中南[2]

机构：[1]华东理工大学超细材料制备与应用教育部重点实验室,上海200237;[2]华东理工大学联合化学反应工程研究所,上海200237

年份：2001

卷号：17

期号：4

起止页码：297

中文期刊名：化学反应工程与工艺

外文期刊名：Chemical Reaction Engineering and Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心2000】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金资助项目 (2 96 36 0 10 ) :中国博士后科学基金资助项目

语种：中文

中文关键词：光催化;光催化反应器;二氧化钛;二氯乙烯;活性炭;动力学模型;动力学;氧化;空气污染;治理;负载型催化剂

外文关键词：photocatalysis; photocatalytic reactor; titanium dioxide; trichloroethylene; activated carbon; kinetic model

摘要：采用具有多层结构的蜂窝状整体式光催化净化块为催化材料 ,设计了室内空气净化光催化反应器 ,以三氯乙烯 (TCE)为模拟污染物 ,在 2 5℃、常压下 ,进行水、TCE的吸附等温线的测试和 TCE的光催化降解反应动力学研究。水与 TCE的平衡吸附采用 L angmuir吸附等温线表示 ;TCE在 Ti O2 表面的光催化反应采用简单的 L- H速率方程来表征 ;并进行了模型值与实验值的比较 。
A photocatalytic air purification web was designed and prepared, in which nano-powders of TiO2 were loaded on activated carbon (AC) powders supported by the monolith material. A photo-catalytic reactor system was designed for indoor air purification, which made of the above-mentioned web, two 4W black lamp and axis-flow fan. Trichloroethylene (TCE) was selected as model substance to performe gas-solid photocatalytic degradation kinetic analysis. The physical adsorption of TCE and water was modeled by using a single nondissociative Langmuir isotherm. The TCE photocatalytic degradation kinetics was described with a simple Langmuir-Hinshelwood rate form. The experimental vales were compared with the theoretical predictions and good agreement was obtained.