Preparation of visible light-responsive TiO2 thin film photocatalysts by an RF magnetron sputtering deposition method and their photocatalytic reactivity

被引:56
作者
Kitano, M
Takeuchi, M
Matsuoka, M
Thomas, JM
Anpo, M
机构
[1] Osaka Prefecture Univ, Grad Sch Engn, Dept Appl Chem, Sakai, Osaka 5998531, Japan
[2] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England
关键词
D O I
10.1246/cl.2005.616
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Visible light-responsive TiO2 (Vis-TiO2) thin films were successfully developed by a radio-frequency (RF) magnetron sputtering deposition method. These Vis-TiO2 thin films exhibited a declined composition of the O/Ti ratio from the surface (O/Ti = 2.00) to bottom (O/Ti = 1.93), enabling the absorption of visible light. Pt-loaded Vis-TiO2 was, thus, found to decompose water involving methanol or a 0.05 M silver nitrate Solution under visible light irradiation.
引用
收藏
页码:616 / 617
页数:2
相关论文
共 13 条
[1]   Preparation, characterization, and reactivities of highly functional titanium oxide-based photocatalysts able to operate under UV-visible light irradiation: Approaches in realizing high efficiency in the use of visible light [J].
Anpo, M .
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 2004, 77 (08) :1427-1442
[2]   Visible-light photocatalysis in nitrogen-doped titanium oxides [J].
Asahi, R ;
Morikawa, T ;
Ohwaki, T ;
Aoki, K ;
Taga, Y .
SCIENCE, 2001, 293 (5528) :269-271
[3]   Photo- and mechano-catalytic overall water splitting reactions to form hydrogen and oxygen on heterogeneous catalysts [J].
Domen, K ;
Kondo, JN ;
Hara, M ;
Takata, T .
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 2000, 73 (06) :1307-1331
[4]   ELECTROCHEMICAL PHOTOLYSIS OF WATER AT A SEMICONDUCTOR ELECTRODE [J].
FUJISHIMA, A ;
HONDA, K .
NATURE, 1972, 238 (5358) :37-+
[5]  
Fujishima A., 2000, J PHOTOCH PHOTOBIO C, V1, P1, DOI DOI 10.1016/S1389-5567(00)00002-2
[6]   Carbon-doped anatase TiO2 powders as a visible-light sensitive photocatalyst [J].
Irie, H ;
Watanabe, Y ;
Hashimoto, K .
CHEMISTRY LETTERS, 2003, 32 (08) :772-773
[7]   Highly efficient water splitting into H2 and O2 over lanthanum-doped NaTaO3 photocatalysts with high crystallinity and surface nanostructure [J].
Kato, H ;
Asakura, K ;
Kudo, A .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (10) :3082-3089
[8]   Hydrogen production using semiconducting oxide photocatalysts [J].
Moon, SC ;
Matsumura, Y ;
Kitano, M ;
Matsuoka, M ;
Anpo, M .
RESEARCH ON CHEMICAL INTERMEDIATES, 2003, 29 (03) :233-256
[9]   Degradation of methylene blue on carbonate species-doped TiO2 photocatalysts under visible light [J].
Ohno, T ;
Tsubota, T ;
Nishijima, K ;
Miyamoto, Z .
CHEMISTRY LETTERS, 2004, 33 (06) :750-751
[10]   Photocatalytic decomposition of NO under visible light irradiation on the Cr-ion-implanted TiO2 thin film photocatalyst [J].
Takeuchi, M ;
Yamashita, H ;
Matsuoka, M ;
Anpo, M ;
Hirao, T ;
Itoh, N ;
Iwamoto, N .
CATALYSIS LETTERS, 2000, 67 (2-4) :135-137