Reinforced Interfacial Cd─Se Bond Coupling Photocatalytic Hydrogen Evolution with Pyruvic Acid Synthesis

Maximizing the utilization of photogenerated electrons and holes to drive the coupling reaction of hydrogen evolution with selective value-added organic synthesis holds great potential for more efficient exploitation of solar energy. Herein, the interstitial boron-doped CdS is synthesized by taking SiO₂ as a template as well as the adsorption sites of boric acid, which contributes to the boron doping and induces the reinforced Cd─Se bonding for enhancing the interfacial interaction with co-catalyst MoSe₂. Thus, the interfacial Cd─Se bond with more electron localization provides rapid channels at the atomic level for accelerating the charge transfer with a lower energy barrier, achieving the efficient hydrogen evolution and high selectivity pyruvic acid synthesis concurrently. This work provides a new perspective in avoiding the use of sacrificial agents uneconomically and producing green hydrogen with high-value-added chemicals simultaneously.