Abstract
Photocatalytic H2 production from H2O is promising for solving the energy and environment problems. Zeolites have been widely used in thermocatalysis, but their application in photocatalysis is limited. Herein, we anchor CdS and Pt nanoparticles on a NaY zeolite (ZP48) fabricated via 48 h crystallization to form a CdS/Pt/ZP48 photocatalyst for visible-light-driven photocatalytic H2 production from H2O. CdS/Pt/ZP48 shows a H2 production rate (686.5 μmol h−1) which is higher than those on Pt/CdS (263.2 μmol h−1) and photocatalysts with zeolite supports prepared by using crystallization times shorter and longer than 48 h, with an apparent quantum efficiency of 23.5% and superior stability. ZP48 promotes the separation of photogenerated electron-hole pairs, thus releasing more electrons for enhancing the photocatalytic H2 production on CdS/Pt/ZP48. These results are helpful for fabricating more efficient photocatalysts by zeolites which are widely used in industry but have poor ability in light absorption and charge transfer.
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