Photocatalytic Degradation of ABR X-3B on TiO2-HZSM-5 Composite

摘要

TiO2-HZSM-5 composite was prepared by solid state dispersion method using phosphoric acid treated HZSM-5 zeolite and TiO2.The composite was studied for photocatalytic degradation of an azo dye ABR X-3B.When TiO2 content in the composite was 10％,decoloration rate increased almost linearly with increasing TiO2 concentration.Too low of TiO2 content was in accordance to low decoloration rate due to insufficient photocatalyst existing.The maximum decoloration rate appeared as 60％ removal of the initial dye,when TiO2 content was 10％.When TiO2 concentration was 80 mg/l,decoloration rate on composite photocatalyst was 97.6％ after 70 min of irradiation,which was 25.9％ higher than that on pure TiO2.