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标题:Preparation and Photo-Catalytic Activity of Supported TiO2 Composites
时间:2020-02-15 10:19:32
DOI:10.1109/ICBBE.2010.5517630
作者:Gao Ru qin;Zhu Ling feng
关键词:Fourier transform spectra;X-ray diffraction;calcination;catalysis;ceramics;infrared spectra;materials preparation;minerals;nanocomposites;nanofabrication
摘要:Supporting body of diatomite-based porous ceramics was prepared by solid-phase sintering and low-temperature calcination process. Nano-TiO2 film was loaded on the surface by hydrolysis deposition method taking titanium tetrachloride as the precursor. Composite structure was characterized by X-ray diffraction, Fourier transform infrared spectroscopy and scanning electron microscope. The photo-catalytic property of TiO2 thin film was investigated by the degradation of malachite green. Results indicated that TiO2 crystal calcined at 550℃ was anatase; Average particle size of TiO2 is about 10 nm; When TiO2 film was irradiated 6h under ultraviolet, the degradation ratio for 5 mg/L malachite green aqueous solution reached 86.2%.
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