提高TiO_2光催化反应器氧化效率的途径

Methods for Improving the Oxidation Efficiency of Photocatalytic Reactors with Fixed TiO_2 Film

在查阅大量文献的基础上,对影响光催化反应器氧化降解效率的主要因素进行了思考和部分实验探索,认为设计研制用于液相氧化的高效固定膜光催化反应器,应解决以下4个方面的问题:降低废水中组分对光吸收、散射造成的损失;提高传质速率;加大光照射催化剂的面积;实现电子与空穴的有效分离及开发能被太阳光激发的新催化剂。

The paper discusses the ways to improve the degradation efficiency of photocatalytic reactors with fixed TiO2 film and the four steps to be taken when using liquid phase. They are;to decrease the losses in light energy caused by absorption and scatter,to improve the speed of mass transport,to increase the irradiated area of photocatalyst ,and to reduce the chance of recombination in order to develop new photocatalyst which can be excited by visible sun light.