Abstract
In this study, we reported a simple but effective ultrasound-driven route to form and deposit MoS2 onto CdS substrate, which was carried by ultrasonic irradiation in an ultrasonic cleaning bath. The ultrasonic irradiation of a suspension of CdS nanowires and (NH4)2MoS4 in an aqueous solution of ethanol for 30 min yielded a MoS2 nanosheets-deposited CdS composite (MoS2/CdS). The resulting MoS2/CdS has been shown to significantly enhance the photocatalytic performance for H2 evolution compared to pure CdS. Various characterization results reveal that the MoS2 nanosheets deposited on CdS by the ultrasound-driven route are short-range shaped, less ordered, few-layered, and close in contact with CdS, which are responsible for the enhanced H2 evolution performance. We believe that the present work opens up a new avenue for the fabrication of MoS2/sulphide used for efficient photocatalytic H2 evolution.
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