Coralline-like Ni2P decorated novel tetrapod-bundle Cd0.9Zn0.1S ZB/WZ homojunctions for highly efficient visible-light photocatalytic hydrogen evolution

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 heterophase homojunctions (ZB/WZ), which accelerate the separation transfer of photogenerated charges. After with NP, photoactivity NPCZS was enhanced, maximum rate 1.88 h?1 reached at NP content 12 wt%, 1.43 times higher than that pure CZS. The experimental results activity, viz. photoluminescence spectra, surface photovoltage electrochemical test showed enhanced should be attributed synergistic effects novel tetrapod-bundle morphology, homojunctions, decoration co-catalyst. Moreover, as-prepared exhibited excellent photostability recyclability. Herein, we propose possible mechanism for activity.