高分子网络凝胶法制备SnO_2/TiO_2复合粉及其光催化性能

Preparation of Nanometer TiO_2 Composite Powders by Polyacrylamide and Their Photo-Catalytic Properties

以TiCl_3和SnCl_4·5H_2O为原料,采用高分子网络凝胶法制备SnO_2/TiO_2复合粉体。用制备的复合粉体对大红染料的稀释溶液进行脱色检验其光催化性能。并用XRD、TEM对粉体进行表征。结果表明：利用高分子网络凝胶法制备的复合光催化剂粒径小、分布均匀可控。一定量的Sn掺杂使复合光催化剂活性明显优于单一的TiO_2,n(SnO_2)/n(TiO_2)= 6%时复合催化剂具有最高的催化活性。

The topic produces composite powders by The composite powders is used to decolorize dilute TiCl3 and SnCl4·5H2O with polymer network gel method. solution of scarlet dye stuff and characterized by XRD and TEM. The result shows the catalyst owning controlled less grain size and higher degree of dispersion. Its activity is obviously better than single TiO2 for Sn doping and reaches the climax in the proportion of n（SnO2）/n （TiO2） = 0.06.