PREPARATION OF N-TIO2 PHOTOCATALYTIC SYNTHESIZED BY SOL-GEL METHOD FOR INHIBITIVE FORMATION OF CARCINOGEN IN FOODS
Keywords:
N-doped TiO2, sol-gel method, photocatalyst, TiO2, calcinationAbstract
The photocatalytic for inhibitive formation of carcinogen in potassium nitrate solution by using visible light was investigated in this research. N-doped TiO2 (N-TiO2) powder was prepared by sol-gel method. Titanium (IV) butoxide was used as the precursor, Ammonium nitrate as the nitrogen source. The obtained gel were calcined with various conditions to investigate the optimum calcined temperature and time in order to obtain N-doped TiO2 powder. Photocatalytic samples were prepared by dipping N-TiO2 slip on sponges substrate. The synthesized powder were characterized by means of X-ray diffraction (XRD), Transmission electron microscope (TEM), Ion chromatography (IC) and specific surface area by BET. The results of X-ray diffraction patterns showed the ammonium nitrate was completely decomposed and obtained single phase of anatase which formed at the calcining temperature of 300°C for 60 min. The particles size were uniformly distributed with the average of 20 nm confirmed by transmission electron microscope (TEM). An optimum condition of N-TiO2 synthesized powder can be removed nitrate 65.63%.
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