硫掺杂纳米二氧化钛的水热合成及其光催化性能研究

摘要

ln the test, Ti(OC4H9)4 was used as precursor, C2H5OH as solvent, HC1 as catalyst, and water as reagent. Titanium dioxide nano-powder was prepared by hydrothermal method, and doing some research about S-doped TiO2. Photo-catalytic degradation experiments were performed with doped titanium dioxide powder under the visible light, identifying the non-metallic sulfide's doping laws. The results showed the photocatalytic degradation capacity of doped samples was enhanced, and there was a optimal doping ratio. In the visible light, it produced a better degradation effect.%以钛酸四丁酯为前驱物,无水乙醇为溶剂,盐酸为抑制剂,水作反应剂,用硫脲为掺杂剂,采用水热法制得二氧化钛纳米粉体,并对样品进行硫离子掺杂的研究.通过将掺杂的二氧化钛粉末在可见光下进行光降解试验,研究了非金属硫离子的掺杂规律.试验结果表明,掺杂后的样品光催化降解能力得到了提高,存在最优的掺杂比例,并且在可见光下产生了较好的降解效果.