Photoreactions on LaTiO2N under visible light irradiation

被引：435

作者：

Kasahara, A

Nukumizu, K

Hitoki, G

Takata, T

Kondo, JN

Hara, M

Kobayashi, H

Domen, K

机构：

[1] Tokyo Inst Technol, Chem Resources Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan

[2] Kurashiki Univ Sci Arts, Kurashiki, Okayama 7128505, Japan

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 2002年 / 106卷 / 29期

关键词：

D O I：

10.1021/jp025961+

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：

Photochemical reactions on LaTiO2N, a perovskite-type oxynitride, were examined, Under visible-light irradiation (420 nm < lambda < 600 nm), LaTiO2N reduced H+ into H-2 and oxidized H2O into O-2 in the presence of a sacrificial electron donor (methanol) or acceptor (Ag+) by the band gap transition (2.1 eV). Oxidation of water proceeded with little degradation of the oxynitride, whereas partial substitution of Ca2+ for La3+ of LaTiO2N and modification by IrO2 colloid markedly suppressed degradation of the oxynitride and increased O-2 evolution efficiency.

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页码：6750 / 6753

页数：4

相关论文

共 14 条

[1] 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

[2] STUDY OF THE PHOTOCATALYTIC DECOMPOSITION OF WATER-VAPOR OVER A NIO-SRTIO3 CATALYST [J].

DOMEN, K ;

NAITO, S ;

ONISHI, T ;

TAMARU, K .

JOURNAL OF PHYSICAL CHEMISTRY, 1982, 86 (18) :3657-3661

[3]

GENDRE LL, 1997, EUR J SOL STATE INOR, V34, P973

[4]

HARRIMAN A, 1987, NEW J CHEM, V11, P757

[5] METAL-OXIDES AS HETEROGENEOUS CATALYSTS FOR OXYGEN EVOLUTION UNDER PHOTOCHEMICAL CONDITIONS [J].

HARRIMAN, A ;

PICKERING, IJ ;

THOMAS, JM ;

CHRISTENSEN, PA .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1988, 84 :2795-2806

[6] ''Sol-Gel'' preparation of high temperature superconducting oxides [J].

Kakihana, M .

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 1996, 6 (01) :7-55

[7] Water splitting into H2 and O2 on alkali tantalate photocatalysts ATaO3 (A = Li, Na, and K) [J].

Kato, H ;

Kudo, A .

JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (19) :4285-4292

[8] 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

[9] 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

[10] New photocatalyst group for water decomposition of RuO2-loaded p-block metal (In, Sn, and Sb) oxides with d10 configuration [J].

Sato, J ;

Saito, N ;

Nishiyama, H ;

Inoue, Y .

JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (26) :6061-6063