Efficient sustainable H₂ generation using Cd_0.5Zn_0.5S/SrWO₄ nanocomposite as a visible photocatalyst

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 Cd0.5Zn0.5S and SrWO4. And then its photocatalytic behavior was explored for H-2 generation under visible light illumination. We found that the obtained Cd0.5Zn0.5S/SrWO4 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 SrWO4 is an excellent cocatalyst for Cd0.5Zn0.5S. The photocatalytic performance of Cd0.5Zn0.5S will be strengthened by about 31 times due to usage of SrWO4. These research results would provide helpful insight into the design and preparation of visible photocatalysts with excellent performance used for H-2 generation tomorrow.