Enhanced Photothermal‐Assisted Hydrogen Production via a Porous Carbon@MoS ₂ /ZnIn ₂ S ₄ Type II‐S‐Scheme Tandem Heterostructure

Abstract MoS ₂ /ZnIn ₂ S ₄ flower‐like heterostructures into porous carbon (PC@MoS ₂ /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 ₂ /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 ₂ evolution. The optimal H ₂ evolution rate for PC@MoS ₂ /ZIS reaches an impressive 18.79 mmol g ⁻¹ h ⁻¹ , 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.