二氧化钛光催化材料的改性研究进展  

Research Progress on Photocatalytic Modification of Titanium Dioxide

作　　者：巩云 王龙龙 徐亚琪 张传香[1,2] GONG Yun;WANG Longlong;XU Yaqi;ZHANG Chuanxiang(School of Materials Science and Engineering,Nanjing Institute of Technology,Nanjing 211167,China;Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology,Nanjing 211167,China)

机构地区：[1]南京工程学院材料科学与工程学院,南京211167 [2]江苏省先进结构材料与应用技术重点实验室,南京211167

出　　处：《材料导报》2020年第S02期37-40,66,共5页Materials Reports

基　　金：大学生科技创新基金项目(TB201902020,TB201902025);江苏省先进结构材料与应用技术重点实验室开放基金(ASMA201911)。

摘　　要：TiO2因其优良的催化性能、稳定的化学性能、环保无毒、使用寿命长等优点而在光催化领域得到广泛的研究和应用,但由于其禁带宽度较大(3.0~3.2 eV),需要在紫外光照射下才能发生光催化反应,因此通常对二氧化钛进行改性研究以使其在可见光范围内具有较高的光催化活性。目前对TiO2的改性已处于深入研究阶段,本文主要综述了单掺(金属、非金属)、共掺(金属与金属、非金属与非金属、金属与非金属)、半导体复合技术对二氧化钛光催化性能的改性研究,提高其对太阳光的利用率。Due to its excellent catalytic properties,stable chemical property,environmental protection,non-toxic,long life and other advantages,TiO2 has extensive research and application in the field of photocatalysis,but its forbidden band width is 3.0—3.2 eV,photocatalytic reaction only occur under ultraviolet(UV)irradiation,therefore,titanium dioxide is usually modified to have higher photocatalytic activity in visible light range.At present,the modification of TiO2 has been in an in-depth research stage.This paper mainly reviews the modification of TiO2 photocatalytic properties by single doping(metal doping,non-metal doping),co-doping(metal and metal,non-metal and non-metal,metal and non-metal)and semiconductor composite technologies,so as to improve the utilization rate of TiO2 to sunlight.

关 键 词：二氧化钛 光催化 改性 掺杂 半导体复合 

分 类 号：TB34[一般工业技术—材料科学与工程]