Structural and photocatalytic properties of novel Bi2GaVO7
Creators
- 1. State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210093 (China)
- 2. National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093 (China)
- 3. State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023 (China)
- 4. Eco-Materials and Renewable Energy Research Center, Nanjing University, Nanjing 210093 (China)
Description
Bi2GaVO7 was synthesized by solid-state reaction method for the first time and its structural and photocatalytic properties were investigated. The results indicated that this compound crystallizes in the tetragonal crystal system with space group I4/mmm. In addition, the band gap of Bi2GaVO7 was estimated to be about 2.13(8) eV. For the photocatalytic water splitting reaction, H2 or O2 evolution was observed from pure water with Bi2GaVO7 as the photocatalyst under ultraviolet light irradiation. Photocatalytic degradation of aqueous methylene blue (MB) dye over this compound was further investigated under visible light irradiation. Bi2GaVO7 showed notable higher catalytic activity compared to P-25 for MB photocatalytic degradation under visible light irradiation. Complete removal of aqueous MB was observed after visible light irradiation for 170 min with Bi2GaVO7 as the photocatalyst. The decrease of the total organic carbon (TOC) and the formation of inorganic products, SO42- and NO3-, demonstrated the continuous mineralization of aqueous MB during the photocatalytic process
Additional details
Identifiers
- DOI
- 10.1016/j.matchemphys.2007.02.096;
- PII
- S0254-0584(07)00156-3;
Publishing Information
- Journal Title
- Materials Chemistry and Physics
- Journal Volume
- 104
- Journal Issue
- 1
- Journal Page Range
- p. 119-124
- ISSN
- 0254-0584
- CODEN
- MCHPDR
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39041370
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ELECTROCHEMISTRY; EV RANGE 01-10; HYDROGEN; INORGANIC COMPOUNDS; IRRADIATION; METHYLENE BLUE; NITRATES; OPTICAL PROPERTIES; PHOTOCATALYSIS; SPACE GROUPS; SULFATES; TETRAGONAL LATTICES; ULTRAVIOLET RADIATION; VISIBLE RADIATION; WATER
- Descriptors DEC
- AMINES; ANTI-INFECTIVE AGENTS; ANTIMICROBIAL AGENTS; AZINES; CATALYSIS; CHEMISTRY; CHLORIDES; CHLORINE COMPOUNDS; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DRUGS; ELECTROMAGNETIC RADIATION; ELEMENTS; ENERGY RANGE; EV RANGE; HALIDES; HALOGEN COMPOUNDS; HETEROCYCLIC COMPOUNDS; HYDROGEN COMPOUNDS; NITROGEN COMPOUNDS; NONMETALS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; ORGANIC SULFUR COMPOUNDS; OXYGEN COMPOUNDS; PHENOTHIAZINES; PHYSICAL PROPERTIES; RADIATIONS; SULFUR COMPOUNDS; SYMMETRY GROUPS
Optional Information
- Copyright
- Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.