Acta Chimica Sinica ›› 2002, Vol. 60 ›› Issue (3): 463-467. Previous Articles     Next Articles

Original Articles

过渡元素掺杂对纳米TiO_2光催化剂性能的影响

冯良荣;吕绍洁;邱发礼   

  1. 中国科学院成都有机化学研究所,成都(610041)
  • 出版日期:2002-03-15 发布日期:2002-03-15

Influence of Transition Elements Dopant on the Photocatalytic Activities of Nanometer TiO_2

Feng Liangrong;Lu Shaojie;Qiu Fali   

  1. Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu(610041)
  • Online:2002-03-15 Published:2002-03-15

A series of nanometer TiO_2 photocatalysts doped respectively by elements with atomic number from 23 to 30 were prepared. Their photocatalytic activities in photodegradation of sodium dodecyl benzene sulfonate were measured. The relationships between the activities and microcrystallite structure of the catalysts, the ratio of electronic affinity to ionic radius of doped atom and ionic magnetic moment of doped atom were studied. It is found that the catalytic activity correlats well with the ratio and magnetic moment. The X-ray diffraction intensity, microcrystallite size, and micro- strain of (101) crystal face of the catalysts had a certain influence on the catalytic activity.

Key words: TITANIUM DIOXIDE, DOPE, PHOTOCATALYSIS, ALKYLBENZENESULFONIC ACID, CATALYTIC ACTIVITY

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