Synthesis of Titanium Dioxide by Microwave Plasma Torch
In this study, TiO2 nanoparticles were synthesized from titanium tetraisopropanol (TTIP) using a microwave plasma torch (MPT) and characterized by scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD) and thermogravimetry analysis (TGA). The visible light photocatalysis was studied by the decomposition of methylene blue. MB present in the aqueous solution could be almost completely (>70%) decomposed within about 720 min of reaction time under visible light irradiation. This is due to the carbon-compounds on the surface of TiO2 (TiOC) corresponding to the results of FTIR. Furthermore, a decrease in recombination between the electron and hole was induced by the existence of TiOC.
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Document Type: Research Article
Publication date: 2015-04-01
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