AI Article Synopsis
- The study reveals that hydrogen bubbles produced during photocatalytic water splitting can effectively exfoliate MoS nanocrystals into fewer layers.
- These few-layered MoS structures can then be combined with CdS nanosheets to form van der Waals heterostructures (vdWHs), enhancing their function.
- The resulting MoS/CdS vdWHs demonstrate significantly improved photocatalytic hydrogen production, achieving a hydrogen evolution rate of 140 mmol g h and an apparent quantum yield of 66% at 420 nm.
Article Abstract
Here we report for the first time that the H bubbles generated by photocatalytic water splitting are effective in the layer-by-layer exfoliation of MoS nanocrystals (NCs) into few layers. The as-obtained few layers can be in situ assembled with CdS nanosheets (NSs) into van der Waals heterostructures (vdWHs) of few-layered MoS/CdS NSs which, in turn, are effective in charge separation and transfer, leading to enhanced photocatalytic H production activity. The few-layered MoS/CdS vdWHs exhibited a H evolution rate of 140 mmol g h and achieved an apparent quantum yield of 66% at 420 nm.
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| http://dx.doi.org/10.1039/c7nr01705g | DOI Listing |
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