Abstract

The efficiency of CdS-based photocatalysts for H2 evolution is limited by the ultrafast charge recombination. Here, we demonstrated the one-pot synthesis of a novel MoS2/CdS photocatalyst with the structure of partially crystalline MoS2 nanodots growing on single-crystalline CdS nanorods. This heterostructure not only effectively reduces the bulk and surface charge recombination owing to single-crystalline CdS nanorod matrix and efficient electron transfer, also provides plenty of active sites for hydrogen evolution reaction (HER) and accessible room for prompt hole extraction. The femtosecond transient absorption (TA) analysis reveals the effective electron transfer from CdS to MoS2 in ~20ps. As a result, MoS2/CdS exhibits extraordinary photocatalytic activity with a H2 evolution rate of 60.28mmol/g/h under visible light irradiation, far exceeding all previous HER photocatalysts with MoS2 as cocatalysts.

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.