太阳能固定膜光催化反应器的效率评价  

Efficiency evaluation of solar photocatalytic reactor with immobilized catalyst

作　　者：林少华[1] 李田[1] 

机构地区：[1]同济大学污染控制与资源化国家重点实验室,上海200092

出　　处：《化工学报》2008年第1期90-95,共6页CIESC Journal

基　　金：国家高技术研究发展计划项目(2002AA601250)~~

摘　　要：以结构简单、光能利用率高的复合抛物面采光板为采光元件,以采用溶胶-凝胶法负载在比表面积大、化学性质稳定的玻璃纤维网上制得的高活性TiO2固定催化剂制作催化组件,自主设计了一种新型的太阳能光催化反应器。以草酸铁钾化学光量计曝光试验对其光学性能进行了评价,光子采集效率约为0.759。由于固定化催化剂活性良好、装填结构合理,本装置降解苯酚表观量子产率可以达到相同结构悬浆催化体系反应器的1/2,因而具有良好的实用性。A novel solar photocatalytic reactor was developed, in which compound parabolic concentrator was used as solar collecting component, and TiO2 catalyst supported on glass fiber mesh by the sol-gel method was used as catalyst. The photonic collection efficiency factor was estimated to be about 0. 759 by potassium ferrioxalate actinometry. As the result of reasonable fixation configuration and appropriate catalytic activity of immobilized catalyst, the apparent quantum yield of phenol degradation in the reactor could reach up to 1/2 of that of the reactor with slurry catalyst system, which suggests that the reactor is of good practicability.

关 键 词：太阳能光催化 固定膜 光子采集效率 草酸铁钾光量计 表观量子产率 

分 类 号：X382[环境科学与工程—环境工程] X505