以钛铁矿为原料,用硫酸浸出法得到含钛的硫酸溶液,在溶液中加入还原剂盐酸羟胺和晶种,水解得到样品TiO2;并通过氢气等离子体还原与高温氢气还原,制备出不同的含有Ti3+的TiO2样品.分别以紫外光和太阳光为光源,通过对可溶性有机染料罗丹明B的降解反应,考察了TiO2、TiO2-P以及TiO2-B催化剂的光催化活性,研究了各个催化剂的优缺点及动力学规律,比较得出最适合实际应用的经济环保催化剂.%Using ilmenite as raw material,sulfate solution containing titanium has been obtained by sulfuric acid leach-ing method. Adding the reducing agent oxammonium hydrochloride and seed crystal to the solution ,TiO2 sample can be obtained by hydrolysis method. Then,samples of different TiO2 containing Ti3+has been prepared by hydrogen-plasma reduction and high temperature hydrogen reduction. By means of the degradation reaction of soluble organic dyestuff rhodamine B,using ultraviolet light and sunlight as light source,respectively, the photocatalytic activities of catalysts TiO2,TiO2-P and TiO2-B are investigated. The advantage,disadvantage and kinetics rule of every catalyst are researched,The most suitable for application,economic and environmental catalyst is obtained through comparison.
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