Band gap tuning of Na1-xLaxTa1-xCoxO3 solid solutions for visible light photocatalysis

被引：67
|
作者：
Yi, Z. G. [1 ]
Ye, J. H. [1 ]
机构：
[1] Natl Inst Mat Sci, Photocatalyt Mat Ctr, Tsukuba 3050047, Japan
来源：
APPLIED PHYSICS LETTERS | 2007年 / 91卷 / 25期
基金：
日本学术振兴会;
关键词：
D O I：
10.1063/1.2826277
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Monophase solid solutions Na1-xLaxTa1-xCoxO3 (x=0-0.25) were prepared with conventional solid state reactions method. The band gaps of the solid solutions can be tuned to effectively absorb visible light, with varying x value. The Na0.9La0.1Ta0.9Co0.1O3 photocatalyst exhibited the highest performance of H-2 evolution (4.34 mu mol/h) under visible light irradiation (lambda>420 nm), whereas no H-2 evolution is observed for NaTaO3 under the same conditions. The first principles calculation using generalized gradient approximation revealed that the band gap alteration and the photocatalytic activities of Na1-xLaxTa1-xCoxO3 are mainly due to the hybridization of Co 3d and O 2p orbitals. (C) 2007 American Institute of Physics.
引用
收藏
页数：3
相关论文
共 50 条
  • [41] Photocatalytic hydrogen production from aqueous methanol solutions under visible light over Na(BixTa1-x)O3 solid-solution
    Li, Zhonghua
    Wang, Yanxin
    Liu, Jiawen
    Chen, Gang
    Li, Yingxuan
    Zhou, Chao
    [J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2009, 34 (01) : 147 - 152
  • [42] TEMPERATURE DEPENDENCES OF THE INDIRECT BAND-GAP OF IN1-XGAXP AND GAAS1-YPY SOLID-SOLUTIONS
    ERMAKOV, ON
    [J]. SOVIET PHYSICS SEMICONDUCTORS-USSR, 1986, 20 (05): : 576 - 577
  • [43] Crystal structure, physicochemical, and sensory properties of solid solutions Bi1-xLaxFe1-xCoxO3 (x=0, 0.05, 0.1)
    Glinskaya, Anna
    Petrov, Gennady
    Romanovski, Valentin
    [J]. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2021, 32 (17) : 22579 - 22587
  • [44] Band-Gap Tuning in All-Inorganic CsPbxSn1-xBr3 Perovskites
    Schwartz, Heidi A.
    Laurenzen, Hannah
    Marzouk, Asma
    Runkel, Manuel
    Brinkmann, Kai Oliver
    Rogalla, Detlef
    Riedl, Thomas
    Ashhab, Sahel
    Olthof, Selina
    [J]. ACS APPLIED MATERIALS & INTERFACES, 2021, 13 (03) : 4203 - 4210
  • [45] Magnetic phases in Pr0.5Sr0.5Mn1-xCoxO3 (x ≤ 0.5) solid solutions
    Troyanchuk, I. O.
    Chobot, A. N.
    Tereshko, N. V.
    Mantytskaya, O. S.
    Efimova, E. A.
    [J]. PHYSICS OF THE SOLID STATE, 2011, 53 (07) : 1340 - 1347
  • [46] Concentration dependence of the spin gap in solid solutions La1-xGdxCoO3-δ
    Ovchinnikov, S. G.
    Orlov, Yu. S.
    Dudnikov, V. A.
    Vereschagin, S. N.
    Perov, N. S.
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2015, 383 : 162 - 165
  • [47] Novel C3N4/Zn1-xCdxS heterostructures with adjustment of the band gap and their visible light photocatalytic properties
    Cui, Xia
    Zheng, Yi Fan
    Yin, Hao Yong
    Song, Xu Chun
    [J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2015, 17 (43) : 29354 - 29362
  • [48] Thermoelectric effect in the graded band gap Si1–xGex (0.2 ≤ x ≤ 1), Si1–xGex (0.5 ≤ x ≤ 1) solid solutions dependent on the gap difference
    Leiderman A.Y.
    Saidov A.S.
    Karshiev A.B.
    [J]. Applied Solar Energy, 2017, 53 (1) : 13 - 15
  • [49] MICROSTRUCTURE AND ELECTRIC PROPERTIES OF NA1-XLIXNBO3 SOLID-SOLUTIONS
    JANKOWSKA, I
    KUS, C
    PTAK, VS
    [J]. IZVESTIYA AKADEMII NAUK SSSR SERIYA FIZICHESKAYA, 1991, 55 (03): : 552 - 554
  • [50] Composition Dependence of the Photocatalytic Activities of BiOCl1-xBrx Solid Solutions under Visible Light
    Liu, Yuanyuan
    Son, Won-Joon
    Lu, Jibao
    Huang, Baibiao
    Dai, Ying
    Whangbo, Myung-Hwan
    [J]. CHEMISTRY-A EUROPEAN JOURNAL, 2011, 17 (34) : 9342 - 9349
12345