Abstract
In this paper, solid solution Mn 0.5 Cd 0.5 S (MCS) nanocrystals is modified by two-dimensional (2D) porous Ni 12 P 5 sheet to form Ni 12 P 5 /MCS composite, which shows photo-catalytic hydrogen production rate as high as 63.22 mmol g −1 h −1 . Compared with pure Mn 0.5 Cd 0.5 S, the hydrogen production performance is nearly 9 times improved. As a non-noble metal co-catalyst, the 2D structure and unique electronic properties of Ni 12 P 5 not only promoted the absorption of light, but also effectively inhibited the recombination process of photo-generated carriers. The successful preparation of Ni 12 P 5 /MCS composite provided an effective way for improving the photo-catalytic performance of semiconductor materials. Ni 12 P 5 /Mn 0.5 Cd 0.5 S composite photocatalyst were firstly synthesized using a simple low-cost ultrasound assisted method with high hydrogen evolution rate and stability. • 2D Ni 12 P 5 sheet with porous structure was successfully synthesized for the first time by hydrothermal method. • Ni 12 P 5 /Mn 0.5 Cd 0.5 S exhibited an excellent photocatalytic hydrogen evolution rate. • Coupling the multiple effects to boost the photocatalytic activity.
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