INORGANICCHEMICALSINDUSTRY ›› 2008, Vol. 0 ›› Issue (11): 0-0.

   

Preparation and characterization of photocatalytic material of TiO2-active carbon composite

Li Jinhuo,Zhu Degui,Xue Zongyue,Guo Shuangquan   

  • Online:2008-11-10 Published:2008-11-10

Abstract: TiO2-active carbon composite material with high photocatalytic activity has been prepared by using nano-sized TiO<SUB>2</SUB> powder and epoxide resin as raw materials.The sample was characterized by thermal gravimetry and differential scanning calorimetry analysis (TG-DSC) and X-ray diffraction (XRD) etc..It demonstrated that the TiO<SUB>2</SUB> in composite existed as anatase.The particle diameter of TiO<SUB>2</SUB>-active carbon composite was 100 nm under scanning electronic microscope (SEM).The experiment of photocatalytic oxidation of methyl orange showed that the composite has a high photocatalytic activity.The research results indicated that,photocatalytic decoloration and mineralization process were taken place simultaneously under experimental conditions.And the composite′s photocatalytic activity was much higher than that of single TiO<SUB>2</SUB> powde for the adsorption of active carbon.The composite not only have a good performance in the ultraviolet region,but also have a very good performance in the visible light region,because of its absorption to visible light (black).So,the low solar energy utilization ratio of TiO<SUB>2</SUB> as photocatalytic catalyst can be significantly improved in the practical application.<BR>