Structural, optical and photocatalytic properties of new solid photocatalysts, Bi xIn1-xTaO4 (0 < x < 1)
- 1. Department of Materials Science and Engineering and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093 (China)
- 2. Photoreaction Control Research Center, National Institute of Advanced Industrial Science and Technology, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565 (Japan)
- 3. Eco-Materials and Renewable Energy Research Center, Nanjing University, Nanjing 210093 (China)
Description
The Bi xIn1-xTaO4 (0 < x < 1) photocatalysts were synthesized by solid-state reaction and characterized by powder X-ray diffraction. Rietveld structure refinement revealed that the variation of x in the Bi xIn1-xTaO4 photocatalysts could cause the change in crystal structure. The structure of the Bi0.2In0.8TaO4 photocatalyst is monoclinic system with space group P2/a. However, the structure of the Bi xIn1-xTaO4 (x 0.5 and 0.8) photocatalysts is triclinic system with space group P-1. The band gaps of the Bi xIn1-xTaO4 (x = 0.2, 0.5 and 0.8) photocatalysts were estimated to be about 2.86, 2.71 and 2.74 eV, respectively. Under visible light irradiation (λ > 420 nm), H2 and O2 were evolved using the Bi xIn1-xTaO4 photocatalysts from CH3OH/H2O and AgNO3/H2O solutions, respectively. The Bi0.5In0.5TaO4 photocatalyst showed the highest activity compared with that of the Bi xIn1-xTaO4 (x = 0.2 and 0.8) photocatalysts
Additional details
Identifiers
- DOI
- 10.1016/j.matchemphys.2005.09.062;
- PII
- S0254-0584(05)00689-9;
Publishing Information
- Journal Title
- Materials Chemistry and Physics
- Journal Volume
- 98
- Journal Issue
- 2-3
- Journal Page Range
- p. 434-441
- ISSN
- 0254-0584
- CODEN
- MCHPDR
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38079233
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- BISMUTH COMPOUNDS; DECOMPOSITION; EV RANGE 01-10; INDIUM COMPOUNDS; IRRADIATION; METHANOL; MONOCLINIC LATTICES; PHOTOCATALYSIS; SILVER NITRATES; SPACE GROUPS; TANTALUM OXIDES; VISIBLE RADIATION; WATER; X-RAY DIFFRACTION
- Descriptors DEC
- ALCOHOLS; CATALYSIS; CHALCOGENIDES; CHEMICAL REACTIONS; COHERENT SCATTERING; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DIFFRACTION; ELECTROMAGNETIC RADIATION; ENERGY RANGE; EV RANGE; HYDROGEN COMPOUNDS; HYDROXY COMPOUNDS; NITRATES; NITROGEN COMPOUNDS; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; RADIATIONS; REFRACTORY METAL COMPOUNDS; SCATTERING; SILVER COMPOUNDS; SYMMETRY GROUPS; TANTALUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Copyright
- Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.