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Design of Visible-Light Sensitive Titanium Oxide Photocatalyst and Degradation of Organic Pollutants

Design of Visible-Light Sensitive Titanium Oxide Photocatalyst and Degradation of Organic Pollutants
可见光敏感二氧化钛光催化剂设计及有机污染物降解
批准号:
13650845
负责人:
YAMASHITA Hiromi
金额:
$2.18万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (C)
财政年份:
2001
资助国家:
日本
项目状态:
已结题
起止时间:
2001 至 2002

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中文摘要
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英文摘要
The metal ion-implantation of titanium dioxide (TiO_2) with metal ions (V^+, Mn^+, Fe^+) at high energy acceleration and the subsequent calcination of these metal ion-implanted Ti_2 in oxygen at around 725 K resulted in a definite shift in the absorption spectra toward visible light regions. These catalysts exhibited photocatalytic reactivity for degradation of 2-propanol diluted in water under visible light irradiation (l> 450 nm). XAFS studies have revealed that the implanted metal ions are located at the lattice positions of Ti^<4+> in TiO_2 after the calcination. These spectroscopic studies show that the substitution of Ti ions in TiO_2 lattice with implanted metal ions is important to modify TiO_2 to be able to adsorb visible light and operate as photocatalysts under visible light irradiation.
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会议论文
H.Yamashita, et al.: "ACS Symposium Series 809, Book on CO2 Conversion and Utilization(分担執筆)"Eds. by K.Fujimoto, C.Song,(ACS, Washington). 343 (2002)
H.Yamashita 等人:“ACS 研讨会系列 809,关于 CO2 转化和利用的书籍(撰稿人)”,K.Fujimoto、C.Song 编辑,(ACS,华盛顿)343。
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通讯作者:
K. Ikeue, H. Yamashita, M. Anpo: "Photocatalytic Reduction of CO_2 with H_2O on titanium Oxides Prepared within Zeolite and Mesoporous Molecular Sieves"Electrochemistry. 70. 402-408 (2002)
K. Ikeue、H. Yamashita、M. Anpo:“在沸石和介孔分子筛内制备的钛氧化物上用 H_2O 光催化还原 CO_2”电化学。
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通讯作者:
H.Yamashita, et al.: "Photocatalytic Degradation of Propanol Diluted in Water under Visible Light Irradiation Using Metal Ion-Implanted Titanium Dioxide Photocatalysts"Photochem. Photobio. A. Chem.. 148. 257-261 (2002)
H.Yamashita 等人:“在可见光照射下使用金属离子注入的二氧化钛光催化剂光催化降解水中稀释的丙醇”Photochem。
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