Photocatalytic water splitting over iron oxide nanoparticles intercalated in HTiNb(Ta)O5 layered compounds

被引:80
作者
Jang, JS
Kim, HG
Reddy, VR
Bae, SW
Ji, SM
Lee, JS
机构
[1] Pohang Univ Sci & Technol, Dept Chem Engn, Pohang 790784, South Korea
[2] Pohang Univ Sci & Technol, Sch Environm Engn, Pohang 790784, South Korea
关键词
layered compounds; iron oxide nanoparticles; H-2; evolution; photocatalysts;
D O I
10.1016/j.jcat.2005.01.026
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
Nanosized iron oxide particles were intercalated into the interlayer of layered compounds HTiNb(Ta)O-5 by a successive ion-exchange reaction. The electronic and local coordination structures of iron oxide in the interlayer space of these proton-containing compounds were investigated by X-ray absorption near edge structure (XANES) and X-ray photoelectron spectroscopy (XPS). The intercalated nanosized iron oxide was Fe2O3, which exhibited a high electron deficiency. Unlike in a previous report, Fe2O3-intercalated layered compounds did not produce hydrogen from an aqueous methanol solution in a photocatalytic manner under visible light. Instead, the material produced a stoichiometric mixture of hydrogen and oxygen photocatalytically under UV irradiation and produced oxygen from an aqueous AgNO3 solution photocatalytically under visible light. (c) 2005 Elsevier Inc. All rights reserved.
引用
收藏
页码:213 / 222
页数:10
相关论文
共 19 条
  • [11] KIM J, IN PRESS TOP CATAL
  • [12] Photocatalytic H2 evolution under visible light irradiation on Ni-doped ZnS photocatalyst
    Kudo, A
    Sekizawa, M
    [J]. CHEMICAL COMMUNICATIONS, 2000, (15) : 1371 - 1372
  • [13] The removal of carbon monoxide by iron oxide nanoparticles
    Li, P
    Miser, DE
    Rabiei, S
    Yadav, RT
    Hajaligol, MR
    [J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2003, 43 (02) : 151 - 162
  • [14] Photocatalytic hydrogen evolution from water on nanocomposites incorporating cadmium sulfide into the interlayer
    Shangguan, WF
    Yoshida, A
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (47) : 12227 - 12230
  • [15] Synthesis and photocatalytic properties of HNbWO6/TiO2 and HNbWO6/Fe2O3 nanocomposites
    Wu, JH
    Uchida, S
    Fujishiro, Y
    Yin, S
    Sato, T
    [J]. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 1999, 128 (1-3) : 129 - 133
  • [16] Synthesis and photocatalytic properties of HTaWO6/(Pt,TiO2) and HTaWO6/(Pt,Fe2O3) nanocomposites
    Wu, JH
    Uchida, S
    Fujishiro, Y
    Yin, S
    Sato, T
    [J]. INTERNATIONAL JOURNAL OF INORGANIC MATERIALS, 1999, 1 (3-4): : 253 - 258
  • [17] Synthesis and photocatalytic properties of layered HNbWO6/(Pt, Cd0.8Zn0.2S) nanocomposites
    Wu, JH
    Lin, JM
    Shu, YB
    Sato, T
    [J]. JOURNAL OF MATERIALS CHEMISTRY, 2001, 11 (12) : 3343 - 3347
  • [18] YAMANAKA S, 1988, CATAL TODAY, V2, P261
  • [19] Direct splitting of water under visible light irradiation with an oxide semiconductor photocatalyst
    Zou, ZG
    Ye, JH
    Sayama, K
    Arakawa, H
    [J]. NATURE, 2001, 414 (6864) : 625 - 627