高等学校化学学报

高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (5): 827.

• 研究快报 • 上一篇    下一篇

TiO2纳米粒子的光催化活性与光伏响应特性研究

朱连杰1, 王德军1, 谢腾峰1, 尚静2, 徐自力2, 杜尧国2   

  1. 1. 吉林大学化学系, 长春 1300231;
    2. 吉林大学环境科学与工程系, 长春 130023
  • 收稿日期:2000-10-31 出版日期:2001-05-24 发布日期:2001-05-24
  • 通讯作者: 王德军(1951年出生),男,博士,教授,从事光化学研究.
  • 基金资助:

    国家自然科学基金(批准号:29971013);吉林省科委资助

Researches on Photocatalytic Activities and Photovoltaic Properties of TiO2 Nanoparticles

ZHU Lian-Jie1, WANG De-Jun1, XIE Teng-Feng1, SHANG Jing2, XU Zi-Li2, DU Yao-Guo2   

  1. 1. Department of Chemistry, Jilin University, Changchun 130023, China;
    2. Department of Environmental Science and Engineering, Jilin University, Changchun 130023, China
  • Received:2000-10-31 Online:2001-05-24 Published:2001-05-24

PDF (PC)

关键词: TiO2, 光催化, 表面光电压, 光降解

Abstract: 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 B TiO2 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.

Key words: TiO2, Photocatalysis, SPS, Photodegradation

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