TiO2纳米粒子的光催化活性与光伏响应特性研究

TiO2纳米粒子的光催化活性与光伏响应特性研究

We investigated the photovoltaic properties of series of TiO2 photocatalysts by means of SPS and found that the thresholds of TiO2 particles blue shift with their particle sizes decreasing and crystal phases changing from rutile TiO2 to anatase TiO2. Combining with the photodegradation activities of TiO2 on C7H16, it was concluded that the photocatalytic activities of TiO2 increase with their thresholds increasing,which can be explained using energy band theory. We also investigated the relationship beween the photovoltaic properties and photocatalytic activities of BTiO2 before and after photooxidation on C7H16, SO2 and C7H16+SO2, respectively and found adsorbates at the surface of TiO2 affect their photocatalytic activities and conduction types of surface layer.

作 者： 朱连杰 王德军 谢腾峰 尚静 徐自力 杜尧国 ZHU Lian-Jie WANG De-Jun XIE Teng-Feng SHANG Jing XU Zi-li DU Yao-guo   作者单位： 朱连杰,王德军,谢腾峰,ZHU Lian-Jie,WANG De-Jun,XIE Teng-Feng(吉林大学化学系,)

尚静,徐自力,杜尧国,SHANG Jing,XU Zi-li,DU Yao-guo(吉林大学环境科学与工程系,) 

刊 名： 高等学校化学学报  ISTIC SCI PKU 英文刊名： CHEMICAL JOURNAL OF CHINESE UNIVERSITIES  年，卷(期)： 2001 22(5)  分类号： O643.32  关键词： TiO2   光催化   表面光电压   光降解  

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