【摘要】 采用不同浓度的硫酸溶液浸渍处理TiO2-WO3,制得不同SO42-/TiO2-WO3光催化剂.考察了光催化剂对邻硝基苯酚溶液的光催化行为.发现SO42-/TiO2-WO3的光催化活性高于TiO2-WO3的光催化活性,浸渍液中H2SO4的浓度对SO42-/TiO2的催化活性有一定的影响,H2SO4溶液的最佳浓度为0.2 mol/L,最佳焙烧温度为550℃.最佳WO3的掺杂量w(WO3)为3%.催化降解过程符合一级动力学规律.更多还原

【Abstract】 The photocatalysts of SO42-/ TiO2-WO3 with different loading of SO42-anion from different concentration of H2SO4 were prepared.The photocatalytic effect of the photocatalysts on orth-nitrophenol was investigated.It was found that the photocatalytic activity of SO42-/ TiO2-WO3 was higher than that of TiO2-WO3.The catalytic activity of SO42-/ TiO2-WO3 depends on the sulfuric acid concentration and the best sulfuric acid concentration,calcination temperature and doping of tungsten oxide were 0.2 mol.L-1,550 ℃ and w(WO3)=3%,respectively.The experimental results showed that the degradation rate of orth-nitrophenol approximately follows the first order kinetics.更多还原