以硝酸铁、硫酸氧钛为出发原料，通过直接化学法合成了锐钛矿型的Fe掺杂的TiO2纳米光催化剂；通过X射线衍射仪、傅里叶红外光谱仪、紫外-可见-近红外分光光度计、热差热重分析仪对样品的结构以及性能进行了表征。结果表明：Fe 掺杂的纳米 TiO2光催化剂的紫外吸收光谱和纯 TiO2相比，吸收带边发生红移，光响应范围拓展到在可见光区域；Fe的掺杂可以提高TiO2的光催化性能，其中1%的Fe-TiO2对亚甲基蓝的光催化活性最高。在模拟可见光条件下，Fe-TiO2表现出了较优的光催化性能，光照10 min后，降解率高达83.9%。%Anatase Fe-TiO2 nanocrystalline photocatalyst was prepared by direct chemical process with TiOSO4 and Fe(NO3)3·9H2O as raw materials. XRD,FT-IR,Uv-vis andDSC-TG were used to characterize prepared photocatalyst. The results show that: ultraviolet absorption spectrum of Fe doped nanometer TiO2 photocatalyst has the absorption band edge shift compared with pure TiO2, the light response range can extend to the visible light region; Fe doping can improve the photocatalytic activity of TiO2, photocatalytic activity of 1% Fe-TiO2 for methylene blue is the highest. Under visible light condition, Fe-TiO2 has better photocatalytic activity, and the degradation rate of methylene blue can reach to 83.9% for 10 min illumination.
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