敏化光催化降解曙红Y染料的研究

分别研究了TiO2溶胶体系和Fe2O3-TiO2复合溶胶体系在太阳光照射下对曙红Y染料的光催化降解作用.实验表明,通过窄能带隙的Fe2O3纳米粒子和TiO2耦合,不仅能将TiO2的光吸收延伸到可见光区域,而且提高了电荷分离的效率,因而这种复合粒子体系比单一的TiO2体系具有更高的光催化活性,能有效地提高光催化降解作用.

Studies on Sensitized Photocatalytic Degradation Eosin Dye Y

The effects of photocatalytic degradation of eosin dye Y in both TiO2 colloidal system and Fe2O3-TiO2 complex colloidal system have been investigated in the sunlight respectively.The goal of the study is to verify that TiO2 is coupled with narrow band gap semiconductor Fe2O3,which not only extends the light absorption of TiO2 to visible light area but also increases the efficiency of charge separation.Therefore,this compound particle system has a higher photocatalytic activity than the single TiO2 system and it can improve the effect of photocatalytic degradation.