摘要
较低的光量子效率是限制TiO2光催化技术实用化的主要原因,对其改性是提高TiO2光量子效率的重要手段。介绍了采用掺杂过渡金属、表面光敏化、表面螯合及衍生、贵金属沉积、复合半导体和添加电子捕获剂等方法对TiO2光催化剂进行改性,并对这些方面研究所取得的进展进行了简单的评述。
Low quantum yield was the main restriction aspect of TiO2 photocatalysis technology for engineering-scale applications.Modification of TiO2 can improve its performance effectively.Based on the photocatalytic mechanism of TiO2, some modification methods including transition metel ion-doping,composite semiconductors,dye sensitization, surface reductive treatment and surface chealation,noble metal deposition, adding electron capture agent were reviewed.
出处
《化学工业与工程》
CAS
2010年第1期79-83,共5页
Chemical Industry and Engineering
关键词
纳米TIO2
光催化剂
机理
改性
nano-titania
photocatalyst
mechanism
modification
