Photocatalytic water decomposition by RuO2-loaded antimonates, M2Sb2O7 (M = Ca, Sr), CaSb2O6 and NaSbO3, with d10 configuration

被引:128
作者
Sato, J [1 ]
Saito, N [1 ]
Nishiyama, H [1 ]
Inoue, Y [1 ]
机构
[1] Nagaoka Univ Technol, Dept Chem, Nagaoka, Niigata 9402188, Japan
关键词
photocatalysts; water decomposition; alkaline earth metal antimonates; alkaline metal antimonates; the d(10) configuration;
D O I
10.1016/S1010-6030(02)00076-X
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The photocatalytic activity for water decomposition of alkaline earth metal and alkaline metal antimonates, M2Sb2O7 (M = Ca, Sr), CaSb2O6 and NaSbO3, was investigated. These antimonates were photocatalytically active when combined with RuO2: both H-2 and O-2 were produced from the initial stage of reaction under UV irradiation, and the photocatalytic activity became stable as the reaction proceeded. The photocatalytic properties are discussed based on the distorted structures of SbO6 octahedra. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:85 / 89
页数:5
相关论文
共 28 条
[11]   New tantalate photocatalysts for water decomposition into H2 and O2 [J].
Kato, H ;
Kudo, A .
CHEMICAL PHYSICS LETTERS, 1998, 295 (5-6) :487-492
[12]   Properties of photocatalysts with tunnel structures: Formation of a surface lattice O- radical by the UV irradiation of BaTi4O9 with a pentagonal-prism tunnel structure [J].
Kohno, M ;
Ogura, S ;
Sato, K ;
Inoue, Y .
CHEMICAL PHYSICS LETTERS, 1997, 267 (1-2) :72-76
[13]   Dispersion of ruthenium oxide on barium titanates (Ba6Ti17O40, Ba4Ti13O30, BaTi4O9 and Ba2Ti9O20) and photocatalytic activity for water decomposition [J].
Kohno, M ;
Kaneko, T ;
Ogura, S ;
Sato, K ;
Inoue, Y .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1998, 94 (01) :89-94
[14]   Reduction and oxidation of BaTi4O9 with a pentagonal prism tunnel structure - Effects on radical formation upon UV irradiation and on the activity of RuO2/BaTi4O9 photocatalyst for water decomposition [J].
Kohno, M ;
Ogura, S ;
Sato, K ;
Inoue, Y .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1997, 93 (14) :2433-2437
[15]   PHOTOCATALYTIC DECOMPOSITION OF WATER OVER NIO-K4NB6O17 CATALYST [J].
KUDO, A ;
TANAKA, A ;
DOMEN, K ;
MARUYA, K ;
AIKA, K ;
ONISHI, T .
JOURNAL OF CATALYSIS, 1988, 111 (01) :67-76
[16]   Water splitting into H2 and O2 on new Sr2M2O7 (M = Nb and Ta) photocatalysts with layered perovskite structures:: Factors affecting the photocatalytic activity [J].
Kudo, A ;
Kato, H ;
Nakagawa, S .
JOURNAL OF PHYSICAL CHEMISTRY B, 2000, 104 (03) :571-575
[17]   Effects of RuO2 on activity for water decomposition of a RuO2/Na2Ti3O7 photocatalyst with a zigzag layer structure [J].
Ogura, S ;
Kohno, M ;
Sato, K ;
Inoue, Y .
JOURNAL OF MATERIALS CHEMISTRY, 1998, 8 (11) :2335-2337
[18]   Effects of RuO2 dispersion on photocatalytic activity for water decomposition of BaTi4O9 with a pentagonal prism tunnel and K2Ti4O9 with a zigzag layer structure [J].
Ogura, S ;
Sato, K ;
Inoue, Y .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2000, 2 (10) :2449-2454
[19]   Photocatalytic activity for water decomposition of RuO2-combined M2Ti6O13 (M = Na, K, Rb, Cs) [J].
Ogura, S ;
Kohno, M ;
Sato, K ;
Inoue, Y .
APPLIED SURFACE SCIENCE, 1997, 121 :521-524
[20]  
Ogura S, 1999, PHYS CHEM CHEM PHYS, V1, P179, DOI DOI 10.1039/A806734A