• KAIQING DAI

      Articles written in Journal of Chemical Sciences

    • Preparation of Ni2P on twinned Zn0.5Cd0.5S nanocrystals for highefficient photocatalytic hydrogen production

      XIAOPENG ZHOU LINXIN YIN KAIQING DAI XIANGYANG GAO YANAN FENG YAFEI ZHAO BING ZHANG

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      Developing efficient non-precious metal semiconductor photocatalysts is highly desirable for photocatalytically splitting water. In this work, the composite of the nanocrystal twinned Zn0.5Cd0.5S (ZCS) solid solution decorated with highly dispersed Ni2P nanoparticles was successfully formed by in situ growthmethod, and it exhibited remarkable photocatalytic hydrogen production activity of visible light. A high rate of hydrogen production of 30473 lmol h-1 g-1 was achieved, and the apparent quantum yield (AQY) was as high as 83.5% at 420 nm. Moreover, the sample could maintain outstanding photocatalytic hydrogenation activity after 4-cycle continuous catalytic process. The unique nano-twinned structure of ZCS and synergistic effects between the Ni2P and the twinned ZCS are responsible for the dramatically improved catalytic activities of photocatalysts composite.

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