摘要
采用浸渍—氢气还原法制备了RuO_2/Ru/TiO_2光催化剂,并采用XRD、SEM、UV-vis漫反射光谱和荧光光谱(FS)等手段对样品进行了表征,以草酸为电子给体,研究了RuO_2的负载量对P_(25)-TiO_2光催化产氢活性的影响.结果表明,P_(25)-TiO_2表面负载RuO_2大大地提高了其光催化产氢速度,模拟太阳光下2wt%负载量下达到最佳产氢活性,6h内的产氢量达到45mmol.
RuO2/Ru/TiO2 Photocatalysts are prepared by impregnation hydrogen reduction method, and characterized by XRD, SEM, UV-vis absorption spectra and Fluorescence spectra（FS）. The effect of loaded RuO2 content on the PEs-TiO2 for hydrogen production from the oxalic acid solution is investigated. The results show that the load RuO2 on the surface of P25-TiO2 greatly improves the rate of photocatalytic generation of hydrogen, and the optimized photocatalytic activity for hydrogen production under simulated sunlight irradiation are achieved when the loaded content is 2 mass%, and the amount of generation of hydrogen is up to 45mmol within 6 hours.
出处
《湖南理工学院学报（自然科学版）》
CAS
2010年第2期61-64,共4页
Journal of Hunan Institute of Science and Technology(Natural Sciences)
基金
湖南省自然科学基金资助项目(09JJ3023)
湖南省教育厅重点资助项目(08A026)
