Abstract In this study, Ni2P-Cd0.9Zn0.1S (NPCZS) composites were synthesized by coupling tetrapod bundle Cd0.9Zn0.1S (CZS) and coralline-like Ni2P (NP) via a simple calcination method. CZS shows outstanding activity in photocatalytic hydrogen evolution (1.31 mmol h−1), owing to its unique morphology and heterophase homojunctions (ZB/WZ), which accelerate the separation and transfer of photogenerated charges. After coupling with NP, the photoactivity of NPCZS was enhanced, and the maximum hydrogen evolution rate of 1.88 mmol h−1 was reached at a NP content of 12 wt%, which was 1.43 times higher than that of pure CZS. The experimental results of the photocatalytic activity, viz. photoluminescence spectra, surface photovoltage spectra, and electrochemical test showed that the enhanced photoactivity of NPCZS should be attributed to the synergistic effects of the novel tetrapod-bundle morphology, heterophase homojunctions, and decoration of the NP co-catalyst. Moreover, the as-prepared NPCZS composites exhibited excellent photostability and recyclability. Herein, we propose a possible mechanism for the enhanced photocatalytic activity.

中文翻译：

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类珊瑚 Ni2P 装饰的新型四足丛 Cd0.9Zn0.1S ZB/WZ 同质结用于高效可见光光催化析氢

摘要 在本研究中，通过简单的煅烧方法将四足丛 Cd0.9Zn0.1S (CZS) 和类珊瑚状 Ni2P (NP) 偶联，合成了 Ni2P-Cd0.9Zn0.1S (NPCZS) 复合材料。由于其独特的形态和异相同质结（ZB/WZ），CZS 在光催化析氢（1.31 mmol h-1）中表现出出色的活性，可加速光生电荷的分离和转移。与NP偶联后，NPCZS的光活性增强，在NP含量为12 wt%时，最大析氢速率达到1.88 mmol h-1，是纯CZS的1.43倍。光催化活性的实验结果，即。光致发光光谱，表面光电压光谱，电化学测试表明，NPCZS 增强的光活性应归因于新型四足束形貌、异相同质结和 NP 助催化剂装饰的协同作用。此外，所制备的 NPCZS 复合材料表现出优异的光稳定性和可回收性。在此，我们提出了增强光催化活性的可能机制。