Preparation of nanocrystalline Sn-TiO2-X via a rapid and simple stannous chemical reducing route
- 1. Key Laboratory of Functional Inorganic Material Chemistry (Heilongjiang University), Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080 (China) and School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090 (China)
- 2. Key Laboratory of Functional Inorganic Material Chemistry (Heilongjiang University), Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080 (China)
- 3. School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090 (China)
Description
The Sn-TiO2-X nanoparticles have been prepared via a rapid and simple stannous chemical reducing method. The as-prepared Sn-TiO2-X nanoparticles were investigated by means of surface photovoltage spectroscopy (SPS), XPS, and DRS technology as well as photocatalytic degradation of RhB were studied under illumination. The experiment results revealed that the reduction of the TiO2 particles raised their Fermi level, which can enhance the driven force of photoinduced electrons transferring from TiO2 to adsorbed O2 and SnO2 on the surface of TiO2. On the other hand, the amount of oxygen vacancies of the Sn-TiO2-X increased after the stannous chemical reduction. The oxygen vacancies can also effectively inhibit the recombination of photoinduced electrons and holes pairs. These factors are favorable to the photocatalytic reaction
Availability note (English)
Available from http://dx.doi.org/10.1016/j.apsusc.2009.01.027Additional details
Identifiers
- DOI
- 10.1016/j.apsusc.2009.01.027;
- PII
- S0169-4332(09)00052-X;
Publishing Information
- Journal Title
- Applied Surface Science
- Journal Volume
- 255
- Journal Issue
- 11
- Journal Page Range
- p. 5896-5901
- ISSN
- 0169-4332
- CODEN
- ASUSEE
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 40087008
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- CRYSTALS; ELECTRON TRANSFER; ELECTRONS; FERMI LEVEL; ILLUMINANCE; NANOSTRUCTURES; OXYGEN; PARTICLES; PHOTOCATALYSIS; REDUCTION; SURFACES; TIN OXIDES; TITANIUM OXIDES; VACANCIES; X-RAY PHOTOELECTRON SPECTROSCOPY
- Descriptors DEC
- CATALYSIS; CHALCOGENIDES; CHEMICAL REACTIONS; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; ELECTRON SPECTROSCOPY; ELEMENTARY PARTICLES; ELEMENTS; ENERGY LEVELS; FERMIONS; LEPTONS; NONMETALS; OXIDES; OXYGEN COMPOUNDS; PHOTOELECTRON SPECTROSCOPY; POINT DEFECTS; SPECTROSCOPY; TIN COMPOUNDS; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Copyright
- Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.