吸附-光催化复合技术在室内空气净化中的应用研究

室内空气污染问题严重影响人们的生活和健康，如何有效去除室内空气污染物成为环保领域的难点问题。基于前期对污染物降解过程的认识，针对目前单一使用吸附技术及光催化技术处理污染物的弱点，本项目拟将吸附技术与光催化技术相结合，发挥各自优势，提出以SiO2@TiO2吸附-光催化复合材料为研究对象，通过对吸附-光催化复合材料的选择，吸附剂和光催化剂复合方式的设计，吸附-光催化协同作用机理的研究，污染物吸附、迁移、降解路径的分析，发展适用于室内空气污染物快速、长效去除的吸附-光催化复合技术。项目重点研究：（1）吸附剂吸附能力对吸附剂寿命和对污染物去除效率的影响。（2）吸附和光催化技术对污染物的协同作用机理。（3）吸附和光催化复合技术对污染物降解途径的影响。（4）吸附剂和光催化剂的空间复合方式对污染物的促进作用。

Pollution of indoor air seriously affects people's life and health. How to removal indoor pollutants becomes a difficult problem in environmental protection field. Based on previous knowledge of pollutant degradation process, aiming at overcoming the weakness of single use of adsorption or photocatalytic technology on pollutants degradation,this project intends to combine the advantages of adsorption and photocatalytic technology together. Using SiO2@TiO2 adsorption-photocatalytic composites as the research object,we want to develop adsorption-photocatalytic technology suitable for rapid, long-term and effectively removal of indoor pollutants, by means of the choice of adsorption-photocatalytic materials, the design of hierarchical structure of adsorption and photocatalytic materials, the investigation of synergetic effect of adsorption and photocatalytsis, the pathway analysis of pollutants adsorption, migration and degradation.This project will forcus on, (1) The adsorption ability of the adsorbents impacting on the adsorbent life and the pollutant removal efficiency. (2) Synergetic effect of adsorption and photocatalytsis on indoor pollutants. (3) The influence of composite technology of adsorption and photocatalysis on the pathway of pollutants degradation. (4) The promoting effect of hierarchical structure between adsorbant and photocatalyst on pollutants degradation.