Abstract
It is well known that both the size and morphology of semiconductor photocatalysts impact their performance. No template synthesis is the future trend. In this study, a series of MnxCd1-xS photocatalysts with a leaf-shaped three-dimensional (3D) dendrite structure was prepared by hydrothermal method without the addition of template agent and surfactant. The hydrogen production rate of leaf-like dendrite MnxCd1-xS was tested under visible light irradiation with Pt as co-catalyst. The highest hydrogen production rate was 1360 μmol g−1 h−1 and the highest apparent quantum yield (AQY) at 450 nm was 3.64%. In addition, the leaf-shaped MnxCd1-xS has good cycling stability and can be used repeatedly. Finally, a reasonable reaction mechanism was proposed based on the experimental consequences. This work provides a feasible strategy for the construction of MnxCd1-xS solid solutions with new morphologies.
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