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
批准号:
13650845
负责人:
YAMASHITA Hiromi
金额:
$2.18万
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
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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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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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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H.Yamashita, et al.: "Application of Ion Beam Techniques for Preparation of Metal Ion-implanted TiO_2 Thin Film Photocatalyst Available under Visible Light Irradiation : Metal ion-implantation and Ionized Cluster Beam Method"J. Synchrotron Rad.. 8. 569-57
H.Yamashita等:“可见光照射下离子束技术在制备金属离子注入TiO_2薄膜光催化剂中的应用:金属离子注入和电离簇束法”J。
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H.Yamashita, et al.: "In situ XAFS Studies on the Effects of the Hydrophobic-hydrophilic Properties of Ti-Beta Zeolites in the Photocatalytic Reduction of CO2 with H2O"Topics in Catal.. 18. 95-100 (2002)
H.Yamashita 等人:“原位 XAFS 研究 Ti-Beta 沸石在光催化还原 CO2 中的疏水-亲水特性的影响”Catal.. 18. 95-100 (2002)
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