二氧化钛紫外光催化降解有机废气研究进展
Progress on TiO2-based UV Photocatalysis for Degradation of Organic Waste Gas
曾斐 1梅瑜 2成卓韦 1冯力 1陈建孟1
作者信息
- 1. 浙江工业大学生物与环境工程学院,浙江杭州310032
- 2. 浙江树人大学生物与环境工程学院,浙江杭州310015
- 折叠
摘要
挥发性有机污染物(vOCs)是近年来逐渐被人们所重视的大气污染物之一,对这类大气污染物的控制尚缺少经济有效的技术手段.现在比较广泛采用的治理技术如吸收法、吸附法、冷凝法和燃烧法等都普遍存在投资运行费用高、容易引起二次污染等问题.而二氧化钛(TiO2)紫外光催化技术是近年来兴起的污染治理技术,具有费用低、净化效率高,无二次污染等特点.文章在综述TiO2催化原理、催化剂制备和结构表征等的基础上,重点介绍了这类催化剂在含氯、芳香烃类、醛酮类、含氮硫恶臭类等有机废气污染治理中的应用,并简要探讨了TiO2紫外光催化技术的发展前景.
Abstract
Volatile organic compounds (VOCs) are one of atmospheric pollutants that have caused great attentions in recent year.However there is still lack of cost-effective methods for control of these pollutants.Some traditional treatments,like adsorption,condensation and combustion,have many disadvantages such as high operating cost and secondary pollution.TiO2-based UV photocatalysis is a novel pollution control technology raised in recent years,which has characteristics of lower cost and higher removal efficiencies,without any secondary pollution.TiO2-based catalytic mechanism,catalyst preparation and structural characterization were reviewed.Applications of TiO2-based UV photocatalysis in waste gas including chlorine,aromatic hydrocarbons,aldehydes and ketones,a nitrogen-containing sulfur-containing treatment were also introduced.Potential applications of TiO2-based UV photocatalysis were also briefly discussed.
关键词
紫外光/二氧化钛/结构表征/有机废气Key words
UV/TiO2/structural characterization/organic waste gas引用本文复制引用
基金项目
国家国际科技合作项目(2011DFA92660)
中国博士后科学基金面上项目(2012M510155)
出版年
2013
NETL
NSTL
维普
万方数据