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Synthesis and Characterization of SnO2-TiO2 Nanocomposite with Rutile-phase via Hydrothermal Method at Low Temperature |
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| Authors: | WANG Yuan-rui LI Wen-yan ZHOU Bing ZHAO Xu |
| Affiliation: | 1. College of Chemistry, Jilin University, Changchun 130012, P. R. China; 2. School of Chemical Engineering, Changchun University of Technology, Changchun 130012, P. R. China; 3. Water Quality Monitoring Center, Changchun Water Group, Changchun 130012, P. R. China |
| Abstract: | With Ti(SO4)2, SnCl4·5H2O and urea as raw materials, SnO2-TiO2 nanocomposites were synthesized via low temperature hydrothermal method at 80―100 ℃ in aqueous solutions. The morphologies of the products were altered systematically by varying the Ti/Sn molar ratio of the reactants, and rutile-phase particles were obtained with an average diameter of about 52.2 nm at a molar ratio of Ti/Sn=7.5. The surface composition of the composite was revealed by X-ray photoelectron spectroscopy(XPS) and X-ray diffraction(XRD) to be solely TiO2 with a rutile structure. This new composite material exhibits a high ultraviolet absorption capacity, and its photocatalytic activity for phenol oxidation is much lower than that of the commercial titania nanoparticles(P25). |
| Keywords: | Rutile Titanium dioxide Stannum dioxide Core-shell UV-shielding |
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