| 纳米TiO_2光催化净化气相污染物 |
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| 引用本文： | 邓一荣,苏雅玲.纳米TiO_2光催化净化气相污染物[J].环境科学与技术,2012(Z2):140-146. |
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| 作者姓名： | 邓一荣 苏雅玲 |
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| 作者单位： | 河海大学水文水资源与水利工程科学国家重点实验室;广东省环境科学研究院;中国科学院南京地理与湖泊研究所湖泊与环境国家重点实验室 |
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| 基金项目： | 河海大学水文水资源与水利工程科学国家重点实验室开放研究基金项目资助(2009490911);国家自然科学基金项目资助(20906097);江苏省自然科学基金(SBK201122901) |
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| 摘 要： | TiO2纳米材料光催化氧化技术是一种新兴且极具潜力的污染物净化技术,在除臭、降解挥发性有机物(VOCs)、杀菌消毒方面功效尤为显著。文章介绍了TiO2光催化氧化技术处理气相污染物的机理;讨论了反应物初始浓度、反应时间、光照强度、湿度、接触面积、催化剂活性等各种因素对光催化效果的影响;阐述了该技术在气相污染物处理领域的应用现状;并针对目前在光催化净化气相污染物方面存在的问题,对今后的发展提出了一些建议和展望。
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| 关 键 词： | 光催化 TiO2 空气净化 气相污染物 |
Purification of Gas-phase Pollutants Using Nano-TiO2 Photocatalyst |
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| DENG Yi-rong,SU Ya-ling.Purification of Gas-phase Pollutants Using Nano-TiO2 Photocatalyst[J].Environmental Science and Technology,2012(Z2):140-146. |
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| Authors: | DENG Yi-rong SU Ya-ling |
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| Institution: | 1,2(1.Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes,Ministry of Education,College of Environmental Science and Engineering,Hohai University,Nanjing 210098,China;2.State Key Laboratory of Lake Science and Environment,Nanjing Institute of Geography and Limnology,Chinese Academy of Sciences,Nanjing 210008,China;3.Guangdong Provincial Academy of Environmental Science,Guangzhou 510045,China) |
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| Abstract: | Photocatalytic oxidation(PCO) using nanomaterials is a promising technology for removing pollutants,especially in deodorization,degradation of volatile organic compounds(VOCs) and sterilization.The mechanism of nanometer photocatalysis was reviewed in this paper.The influence factors including initial concentration of pollutants,reaction time,light intensity,humidity,surface area and catalyst activity were discussed.Furthermore,the application in photocatalytic removal of gas phase contaminants was summarized,and the future development of its application was proposed based on the existing problems. |
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| Keywords: | photocatalysis titanium dioxide air purification gas-phase pollutant |
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