Dopant dependent band gap tailoring of hydrothermally prepared cubic SrTixM1-xO3 (M=Ru,Rh,Ir,Pt,Pd) nanoparticles as visible light photocatalysts

被引：70
作者：
Bae, Sang Won [1 ]
Borse, Pramod H. [1 ]
Lee, Jae Sung [1 ]
机构：
[1] Pohang Univ Sci & Technol, Dept Chem Engn, NRL, Pohang 790784, South Korea
来源：
APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 10期
关键词：
D O I：
10.1063/1.2897300
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Nanostructured cubic SrTiO3 particles were hydrothermally synthesized and studied experimentally/theoretically for photoreduction of water. The particles were doped with metal atoms (M=Ru,Rh,Ir,Pt,Pd), which acquired high cyrstallinity after thermal treatment. SrTiO3:Rh showed the highest rate of H-2 evolution under lambda>420 nm photons. The density functional theory calculations of SrTixM1-xO3 (M=Ru,Rh,Ir,Pt) implied that the photocatalytic activity of SrTixRh1-xO3 was due to its suitable band energetics, and the induced hybridized Ti/Rh orbitals in the bandgap of SrTiO3. (C) 2008 American Institute of Physics.
引用
收藏
页数：3
相关论文
共 12 条
  • [1] BLAHA P, 1997, WIEN97
  • [2] Band gap tuning of lead-substituted BaSnO3 for visible light photocatalysis
    Borse, Pramod H.
    Joshi, Upendra A.
    Ji, Sang Min
    Jang, Jum Suk
    Lee, Jae Sung
    Jeong, Euh Duck
    Kim, Hyun Gyu
    [J]. APPLIED PHYSICS LETTERS, 2007, 90 (03)
  • [3] Theoretical band energetics of Ba(M0.5Sn0.5)O3 for solar photoactive applications
    Borse, Pramod H.
    Lee, Jae S.
    Kim, Hyun G.
    [J]. JOURNAL OF APPLIED PHYSICS, 2006, 100 (12)
  • [4] STRUCTURAL CHARACTERISTICS OF SR1-XLAXTI3+-DELTA AS A FUNCTION OF OXYGEN PARTIAL-PRESSURE AT 1400-DEGREES-C
    HOWARD, SA
    YAU, JK
    ANDERSON, HU
    [J]. JOURNAL OF APPLIED PHYSICS, 1989, 65 (04) : 1492 - 1498
  • [5] Photocatalytic decomposition of water-methanol solution over metal-doped layered perovskites under visible light irradiation
    Hwang, DW
    Kim, HG
    Jang, JS
    Bae, SW
    Ji, SM
    Lee, JS
    [J]. CATALYSIS TODAY, 2004, 93-5 : 845 - 850
  • [6] H2 evolution from an aqueous methanol solution on SrTiO3 photocatalysts codoped with chromium and tantalum ions under visible light irradiation
    Ishii, T
    Kato, H
    Kudo, A
    [J]. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2004, 163 (1-2) : 181 - 186
  • [7] Template-free hydrothermal synthesis of single-crystalline barium titanate and strontium titanate nanowires
    Joshi, UA
    Lee, JS
    [J]. SMALL, 2005, 1 (12) : 1172 - 1176
  • [8] An undoped, single-phase oxide photocatalyst working under visible light
    Kim, HG
    Hwang, DW
    Lee, JS
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (29) : 8912 - 8913
  • [9] Photocatalytic nanodiodes for visible-light photocatalysis
    Kim, HG
    Borse, PH
    Choi, WY
    Lee, JS
    [J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (29) : 4585 - 4589
  • [10] Photocatalytic activities of noble metal ion doped SrTiO3 under visible light irradiation
    Konta, R
    Ishii, T
    Kato, H
    Kudo, A
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (26) : 8992 - 8995
12