专题论文

纳米TiO2改性及其光催化降解室内VOCs研究进展

  • 张涛 ,
  • 程荣 ,
  • 申亮杰 ,
  • 陈冉 ,
  • 石磊
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  • 中国人民大学环境学院, 北京 100872
张涛,硕士研究生,研究方向为室内空气污染,电子信箱:751093802@qq.com

收稿日期: 2016-09-01

  修回日期: 2016-10-20

  网络出版日期: 2016-12-13

基金资助

国家自然科学基金项目(51108454);中国人民大学教师教学发展改革项目

Modification of TiO2 nanomaterials and their application in photocatalytic degradation of VOCs in indoor air

  • ZHANG Tao ,
  • CHENG Rong ,
  • SHEN Liangjie ,
  • CHEN Ran ,
  • SHI Lei
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  • School of Environment and Natural Resources, Renmin University of China, Beijing 100872, China

Received date: 2016-09-01

  Revised date: 2016-10-20

  Online published: 2016-12-13

摘要

作为室内空气中普遍存在的污染物,挥发性有机物(VOCs)对人体健康具有极大的潜在危害。绿色高效的光催化技术是降解VOCs的重要手段,但常规TiO2催化剂存在光响应范围窄、量子效率低等缺点。因此,纳米TiO2光催化剂的改性得到了广泛关注。目前的改性方法包括离子掺杂、贵金属沉积、半导体复合等。本文综述纳米TiO2光催化剂的改性方法,分析了各方法提高光催化效率的原理及影响因素,总结了改性TiO2纳米材料降解室内VOCs的研究进展。

本文引用格式

张涛 , 程荣 , 申亮杰 , 陈冉 , 石磊 . 纳米TiO2改性及其光催化降解室内VOCs研究进展[J]. 科技导报, 2016 , 34(22) : 26 -31 . DOI: 10.3981/j.issn.1000-7857.2016.22.002

Abstract

The volatile organic compounds (VOCs) are one kind of ubiquitous pollutants in the indoor air, with great potential hazards on human health. The photocatalysis, which is green and highly efficient, is an important technology for the removal of VOCs. However, the conventional TiO2 has some shortcomings, such as the narrow light response range and the low quantum efficiency. So, the modification of TiO2 nanomaterials has been a wide concern. The modification methods for TiO2 nanomaterials include the ion doping, the noble metal deposition, and the semiconductor coupling. This paper reviews the modification methods for TiO2 nanomaterials, and analyzes the mechanism and the influencing factors for improving photocatalytic efficiency. The research progress for VOCs removal in indoor air with modified TiO2 nanomaterials is summarized. As a new application for photocatalytic materials, the photocatalytic degradation of VOCs in indoor air with modified TiO2 nanomaterials needs to be further studied.

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