以钛酸丁酯为前驱体,乙醇为溶剂,盐酸做抑制剂,采用溶胶凝胶法制备TiO2光催化剂。用XRD、SEM和紫外-可见光分度计对样品进行分析,并以甲基橙为模拟污染物,考察样品在紫外光照射下降解甲基橙的能力。结果表明,所制备的样品均为纳米级锐钛矿型的,纯度高且分散性较好;在紫外光照射下具有较高的催化活性。 Using butyl titanate as precursor, ethanol as solvent and hydrochloric acid as inhibitor, the TiO2 photocatalyst was prepared by sol-gel method. The samples were analyzed by XRD, SEM and UV - Visible spectrophotometer. Methyl orange was used as the simulated pollutant to investigate the ability of the sample to degrade methyl orange under UV irradiation. The results show that all the prepared samples are of nanoscale anatase type, with high purity and good dispersibility; and have high catalytic activity under ultraviolet light irradiation.