Carbamide was used as the source of N and tetrabutyl titanate as the source of Ti,by the sol-gel method to prepare N-TiO2,and it was characterized by scanning electron microscope (SEM),infrared Spectroscopy (IR),X-ray diffraction (XRD),X-ray photoelectron spectroscopy (XPS) and fluorescence spectra.The results showed that the size of N-TiO2 was about 20nm.Photoelectric ability of the composite was greatly reduced compared with the pure TiO2.4N-TiO2-500 as the most suitable photocatalyst,the photodegradation of Rhodamine 6G was simulated.The experiment indicated that the sample had a great ability of photocatalytic degradation.After irradiated by 500W high pressure mercury lamp,the degradation rate reached to 99.24%.By studying the catalyst durability,it was found that the rate of photocatalytic degradation of prepared material was up to 85.79% after 6 cycles.
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基金资助
国家自然科学基金(21465011,51563009);江西省主要学科学术和技术带头人计划(20133BCB22007)
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