Vanadium-containing polyphosphomolybdate immobilized on TiO2 nanoparticles: A recoverable and efficient catalyst for Photochemical,Sonochemical and photosonochemical degradation of dyes under irradiation of UV light |
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| Authors: | S. Tangestaninejad M. Moghadam V. Mirkhani I. Mohammadpoor-Baltork H. Salavati |
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| Affiliation: | 1.Department of Chemistry,University of Isfahan,Isfahan,Iran;2.Department of Nanotechnology Engineering,University of Isfahan,Isfahan,Iran;3.Department of Chemistry,Payame Noor University (PNU),Isfahan,Iran |
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| Abstract: | A new photocatalyst, nanoporous anatase TiO2 crystalline particles coupled by Na5PV2Mo10O40 Keggin units, TiO2-PVMo, was prepared by combination of the methods of sol-gel and hydrothermal treatment. The catalyst was characterized by X-ray diffraction (XRD), UV diffuse reflectance spectroscopy (UV-DRS), FT-IR spectroscopy, Scanning Electron Microscopy (SEM) and cyclovoltametery (CV). This photocatalyst exhibited a good photocatalytic (UV region) and sonocatalytic activity in the decomposition of different dyes in aqueous systems. The TiO2-PVMo composite showed higher photocatalytic and sonocatalytic activity than pure polyoxometalate or pure TiO2. |
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