Solar-induced photochemistry is one of promising strategies in response to challenging energy and environmental issues.[1] Recently, the harvest and conversion of solar energy into renewable chemical fuels by artificial photosynthetic systems has developed extensively.[2,3] As the representative two-dimensional carbon allotrope, graphene is constructed by a single layer carbon atoms arranged in a honeycomb network. Owing to its large specific surface area and superior electrical conductivity,[4,5] graphene not only provides the platform for catalyst loading, but also serves as an efficient electron acceptor and transporter to improve the separation efficiency of photo-induced charge carriers.[6,7] Although various graphene-based composites have been proven to enable photocatalytic H2 evolution, these systems still have critical drawbacks including the rapid recombination of charge carriers and poor durability. Therefore, reasonable design of grapheme-based heterostructures integrated with semiconductors and efficient cocatalysts provides a new train of thought for promoting the photocatalytic activity. Herein, we present a facile strategy to in-suit synthesize the high-density Zn0.2Cd0.8S/NiS nanoparticles on the reduced graphene oxide (rGO) nanosheets, which act as tandem nanoreactors for H2 evolution. The as-prepared Zn0.2Cd0.8S/NiS@rGO heterostructures exhibited a highly-efficient visible-light-driven H2 evolution activity and remarkable durability.

In-situ growth of high-density Zn0.2Cd0.8S/NiS nanoparticles on graphene nanosheets as tandem nanoreactor for efficient hydrogen evolution

254th National Meeting (2017)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.