MoS2 grown in situ on CdS nanosheets for boosted photocatalytic hydrogen evolution under visible light

A novel nano-heterojunction photocatalysts of CdS/MoS2 with appropriate interfacial contact was successfully obtained by the facile two-step hydrothermal synthesis. The MoS2 ultrathin layer was well combined with CdS nanosheets and formed the interaction, which facilitated the transfer and separation of charges. The CdS/MoS2 15 wt% possessed much higher H2 evolution photocatalytic performance (35.24 mmol h-1 g-1), exhibiting an 85.95 times enhancement as compared to that of pure CdS (0.41 mmol h-1 g-1). Moreover, the photochemical stability of CdS/MoS2 heterojunctions was excellent, which showed no significant decrease in activity after four cycles of experiments. The finding provides a novel method to integrate the structure of MoS2 with CdS, which exhibits great potential in solar energy conversion. (c) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

Automated summary

A novel nano-heterojunction photocatalyst of CdS/MoS2 was successfully obtained by a facile two-step hydrothermal synthesis method. The combination of MoS2 ultrathin layer and CdS nanosheets facilitated charge transfer and separation, leading to significantly enhanced photocatalytic performance.