Synthesis of fluorinated TiO2 hollow microspheres and their photocatalytic activity under visible light |
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| Authors: | Li Junqi Wang DefangLiu Hui He ZuoliZhu Zhenfeng |
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| Institution: | a School of Materials Science and Engineering, Shaanxi University of Science & Technology, Xi’an, Shaanxi 710021, China
b Key Laboratory of Auxiliary Chemistry & Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science and Technology, Xi’an, Shaanxi 710021, China |
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| Abstract: | Fluorinated TiO2 hollow microspheres with three-dimensional hierarchical architecture were prepared by solvothermally treatment using solid microspheres as precursor. The obtained solid and hollow TiO2 microspheres were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET), X-ray photoelectron spectroscopy (XPS), UV-Vis diffuse reflectance spectrum (DRS) and photoluminescence (PL) spectra. The photocatalytic activity of as-prepared solid and hollow TiO2 microspheres was determined by degradation of methyl orange (MO) under visible light irradiation. The results showed that the surface fluorination, the existence of accessible mesopores channels, and the increased light harvesting abilities could remarkably improve the photocatalytic activity of TiO2 hollow microspheres. |
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| Keywords: | Fluorinated TiO2 Hollow microspheres Photocatalysis |
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