Abstract
Development of novel hybrid photocatalysts with high efficiency and durability for photocatalytic hydrogen generation is highly desired but still remains a grand challenge currently. In the present work, TiO2-doped microporous zeolite SSZ-13 with varying amounts of TiO2 were prepared using solid state dispersion (SSD) method, as photocatalysts for the evolution of photocatalytic degradation of methylene blue and H2 evolution under UV–vis irradiation. The incorporation of P25 into SSZ-13 zeolite significantly enhanced the photocatalytic activity for H2 evolution (reduction) and degradation of methylene blue (oxidation). And the most efficient photocatalyst was proven to 60%TiO2 loading, whose H2 generation (126.7 μmol/h) was profoundly enhanced for 3 times with respect to P25 (37.2 μmol/h) and degradation rate of methylene blue was 96% within 2.5 h. The photocatalysts were characterized by XRD, SEM, BET, UV–vis and PL. The results showed TiO2 were well dispersed on the surface of zeolite and the strong interaction between P25 and SSZ-13 zeolite, which improved significantly photocatalytic performance of P25. This study suggested the potential photocatalytic application of microporous zeolite SSZ-13 as a catalyst carrier.
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