Enhanced Photothermal-Assisted Hydrogen Production via a Porous Carbon@MoS/ZnInS Type II-S-Scheme Tandem Heterostructure.

MoS/ZnInS flower-like heterostructures into porous carbon (PC@MoS/ZIS) are embedded. This ternary heterostructure demonstrates enhanced light absorption across a broad spectral range from 200 to 2500 nm. It features both Type-II and S-scheme dual heterojunction interfaces, which facilitate the generation, separation, and transfer of photoinduced carriers. The PC enveloped by MoS/ZIS composite microspheres serves as a photothermal source, providing additional energy to the carriers. This process accelerates charge separation and migration, enhancing photothermal-assisted photocatalytic H evolution. The optimal H evolution rate for PC@MoS/ZIS reaches an impressive 18.79 mmol g h, with an apparent quantum efficiency of 14.1% at 400 nm. This work presents a promising approach for effectively integrating multicomponent heterostructures with photothermal effects, offering innovative strategies for efficient solar energy utilization and conversion.