The preparation of 0D / 2D P‐doped Mn _x Cd _1‐x S / Ni ₂ P photocatalyst and its photocatalytic activity of pure water splitting for H ₂

Abstract

Summary The photocatalytic hydrogen evolution of MnxCd1‐xS in pure water has been achieved through suitable modification methods and efficient co‐catalysts. This article presents the photocatalytic performance and reaction mechanism of a Ni2P‐modified P‐doped MnxCd1‐xS photocatalyst (PNIMCS). It possesses admirable photocatalytic H2 evolution ability both in pure water and trapping agent solutions. The co‐catalysts Ni2P and P doping make a significant contribution in facilitating the PNIMCS photocatalytic pure water splitting to hydrogen reaction. They make the ECB of PNIMCS more negative, lower the overpotential of the hydrogen evolution reaction, and also promote the separation and transfer of photogenerated h+ and e−, thus improving the hydrogen evolution performance of PNIMCS.

Synergistic optimization of triple phase junctions and oxygen vacancies over MnxCd1−xS/Ov-WO3 for boosting photocatalytic hydrogen evolution

“…6,7 In the domain of photocatalytic hydrogen production, sulfide-based semiconductors have been extensively explored as the most typical photocatalysts, including CdS, 6,8 CdIn 2 S 4 , 2,9 Zn x Cd 1− x S, 10–13 and Mn x Cd 1− x S. 14–17 Among these photocatalysts, the Mn x Cd 1− x S solid solution has led to a new wave of interest, owing to its adjustable band energy structure by adjusting the ratio of x -components, strong redox potentials, and effective light response. 18–21 Although Mn x Cd 1− x S possesses great potential for photocatalytic hydrogen evolution, it also has some disadvantages such as fast recombination of photogenerated charge carriers and easy photo-corrosion.…”