Efficient sustainable H2 generation using Cd0.5Zn0.5S/SrWO4 nanocomposite as a visible photocatalyst.

[Display omitted] • Using SrWO 4 to enhance photocatalytic activity of Cd 0.5 Zn 0.5 S. • The fastest H 2 production rate of 9.47 mmol g−1 h−1 is achieved. • The photocatalytic activity of Cd 0.5 Zn 0.5 S is enhanced 31-fold. It has been attracting worldwide interests in efficient and sustainable H 2 generation. Developing an efficient photocatalyst is the major kernel to achieve the aforesaid goal. Here, we developed a visible photocatalytic system using Cd 0.5 Zn 0.5 S and SrWO 4. And then its photocatalytic behavior was explored for H 2 generation under visible light illumination. We found that the obtained Cd 0.5 Zn 0.5 S/SrWO 4 nanocomposite was a visible photocatalyst with outstanding photocatalytic performance for H 2 production. When it was used as a photocatalyst, the fastest H 2 production rate of 9.47 mmol g−1 h−1 would be achieved. Moreover, the results also indicate that SrWO 4 is an excellent cocatalyst for Cd 0.5 Zn 0.5 S. The photocatalytic performance of Cd 0.5 Zn 0.5 S will be strengthened by about 31 times due to usage of SrWO 4. These research results would provide helpful insight into the design and preparation of visible photocatalysts with excellent performance used for H 2 generation tomorrow. [ABSTRACT FROM AUTHOR]