growth of a-few-layered MoS on CdS nanorod for high efficient photocatalytic H production

2021, Volume 15, Issue 3

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Frontiers in Energy >> 2021, Volume 15, Issue 3 doi: 10.1007/s11708-021-0779-3

growth of a-few-layered MoS on CdS nanorod for high efficient photocatalytic H production

Received: 2021-03-13 Accepted: 2021-10-09 Available online: 2021-09-15

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Abstract

An ultrathin MoS₂ was grown on CdS nanorod by a solid state method using sulfur powder as sulfur source for photocatalytic H₂ production. The characterization result reveals that the ultrathin MoS₂ nanosheets loaded on CdS has a good contact state. The photoelectrochemical result shows that MoS₂ not only are beneficial for charge separation, but also works as active sites, thus enhancing photocatalytic activity. Compared with pure CdS, the photocatalytic activity of MoS₂ loaded CdS was significantly improved. The hydrogen evolution rate on m(MoS₂): m(CdS) = 1: 50 (m is mass) reaches 542 μmol/h, which is 6 times of that on pure CdS (92 μmol/h). This work provides a new design for photocatalysts with high photocatalytic activities and provides a deeper understanding of the effect of MoS₂ on enhancing photocatalytic activity.

Keywords

photocatalytic H₂ production ; CdS ; MoS₂ cocatalyst ; charge separation

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