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采用sol-gel方法,制备了FePc/TiO2纳米光催化剂,采用XRD、UV-vis、荧光光谱对光催化剂进行了表征,以罗丹明B为降解目标物,研究了FePc/TiO2在紫外光照射(中心波长364nm)下的光催化活性.FePc敏化TiO2提高了光催化活性,其可能机理是,在sol-gel制备及后处理过程中,TiO2与FePc之间形成了较强相互作用,即某种较强的化学键合,可以促进能量与电子的转移,促使光生电子与空穴的有效分离,提高了光催化量子效率.

参考文献

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