A novel series of photocatalysts M2.5VMoO8 (M = Mg, Zn) for O2 evolution under visible light irradiation

被引:26
作者
Wang, DF
Zou, ZG
Ye, JH
机构
[1] NIMS, Ecomat Ctr, Tsukuba, Ibaraki 3050047, Japan
[2] Natl Inst Adv Ind Sci & Technol, AIST, PCRC, Tsukuba, Ibaraki 3058565, Japan
关键词
photocatalytic O-2 evolution; visible light; electronic structure;
D O I
10.1016/j.cattod.2004.06.090
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
A new series of visible light-driven photocatalysis M2.5VMoO8 (M = Mg, Zn) crystallized in the orthorhombic crystal system were synthesized by a solid-state reaction method. The photophysical and photocatalytic properties of M2.5VMoO8 (M = Mg, Zn) under visible light irradiation were examined. It was found that efficient O-2 was evolved from aqueous AgNO3 solution dispersed with the M2.5VMoO8 (M = Mg, Zn) powder samples synthesized under visible light irradiation. The electronic band structures of M2.5VMoO8 (M = Mg, Zn) were discussed in regard to the corresponding photocatalytic properties. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:891 / 894
页数:4
相关论文
共 20 条
[1]   PHOTOREDOX REACTIONS ON SEMICONDUCTORS AT OPEN CIRCUIT - REDUCTION OF FE-3+ ON WO3 ELECTRODES AND PARTICLE SUSPENSIONS [J].
DESILVESTRO, J ;
NEUMANNSPALLART, M .
JOURNAL OF PHYSICAL CHEMISTRY, 1985, 89 (17) :3684-3689
[2]   ELECTROCHEMICAL PHOTOLYSIS OF WATER AT A SEMICONDUCTOR ELECTRODE [J].
FUJISHIMA, A ;
HONDA, K .
NATURE, 1972, 238 (5358) :37-+
[3]  
HARDING WD, 1993, J CATAL, V144, P593
[4]   Photocatalysis for water decomposition by RuO2-dispersed ZnGa2O4 with d10 configuration [J].
Ikarashi, K ;
Sato, J ;
Kobayashi, H ;
Saito, N ;
Nishiyama, H ;
Inoue, Y .
JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (35) :9048-9053
[5]   Photocatalytic O2 evolution under visible light irradiation on BiVO4 in aqueous AgNO3 solution [J].
Kudo, A ;
Ueda, K ;
Kato, H ;
Mikami, I .
CATALYSIS LETTERS, 1998, 53 (3-4) :229-230
[6]   A novel aqueous process for preparation of crystal form-controlled and highly crystalline BiVO4 powder from layered vanadates at room temperature and its photocatalytic and photophysical properties [J].
Kudo, A ;
Omori, K ;
Kato, H .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1999, 121 (49) :11459-11467
[7]   New In2O3(ZnO)m photocatalysts with laminal structure for visible light-induced H2 or O2 evolution from aqueous solutions containing sacrificial reagents [J].
Kudo, A ;
Mikami, I .
CHEMISTRY LETTERS, 1998, (10) :1027-1028
[8]   PHOTOREACTIVITY OF WO3 DISPERSIONS - SPIN TRAPPING AND ELECTRON-SPIN-RESONANCE DETECTION OF RADICAL INTERMEDIATES [J].
LEAUSTIC, A ;
BABONNEAU, F ;
LIVAGE, J .
JOURNAL OF PHYSICAL CHEMISTRY, 1986, 90 (17) :4193-4198
[9]   ELECTRON-TRANSFER REACTIONS AND FLAT-BAND POTENTIALS OF WO3 COLLOIDS [J].
NENADOVIC, MT ;
RAJH, T ;
MICIC, OI ;
NOZIK, AJ .
JOURNAL OF PHYSICAL CHEMISTRY, 1984, 88 (24) :5827-5830
[10]   Electronic structures of promising photocatalysts InMO4 (M=V, Nb, Ta) and BiVO4 for water decomposition in the visible wavelength region [J].
Oshikiri, M ;
Boero, M ;
Ye, JH ;
Zou, ZG ;
Kido, G .
JOURNAL OF CHEMICAL PHYSICS, 2002, 117 (15) :7313-7318