TiO_2复合光催化剂制备及对染料的降解研究

Study on the Preparation and Photocatalytic Degradation of TiO_2 and TiO_2-Fe_2O_3 Composite to Dye

以Ti(OC4H9)4为原料,采用溶胶-凝胶法制备出光催化剂纳米TiO2和TiO2-Fe2O3复合粉体,并用制得的样品在紫外光催化条件下对刚果红、碱性品红、酸性蓝等三种水溶性染料溶液进行降解实验,讨论了两种催化剂对染料的光催化降解脱色效果。结果表明TiO2-Fe2O3复合粉体对酸性蓝和刚果红的降解效果好于纳米TiO2,两者对碱性品红的降解效果相当。

The photocatalytic degradation efficiencies of Nanometer TiO2 and TiO2 - Fe2O3 composite photocatakyst to water - soluble dyes （Acid Blue , Congo Red , Fuchsia Basic） have been studied by using UV -light as light source. The results showed that degradation efficiencies of TiO2 -Fe2O3 to Acid Blue and Congo Red are better than TiO2 photocatalyst, and the degradation efficiencies of TiO2 -Fe2O3 and TiO2 to Fuchsia Basic are similar.