Template-assisted growth of defect-rich MoS2 nanostructures gave rise to enhanced hydrogen evolution reaction activity.

Nanoscale two-dimensionaln anostructures have shown great potential as functional components in photocatalysis. Here, investigationso nt he synthesis of heterostructured hybrids, comprised of 0D CdS nanoparticles as semiconductor and 2D/2D graphene/MoS x as co-catalyst, are reported. The approach involves ar apid microwave-assisted reaction in autoclave conditions, by adopting either ao nestep or at wo-stepp rotocol. The chemical speciation of the nanocomposites was found to depend strongly on the compounding conditions of the precursors ubstances. The pho-tocatalytic activity was assessed by monitoring the photodegradation rate of 4-nitrophenol in solution using simulated solar light irradiation. The photocatalytic activity of the hybrids may be attributed to ac ombination of beneficial characteristics, strongly relatedt ot he chemical speciationo ft he composite components. Moreover,i ntimate contacts of the latter result in efficient heterojunctions. Overall, the present study provides valuable insighti nto the development of functional heterostructured photocatalystsc omprised of two-dimensional nanomaterials. Figure 5. Raman spectrafrom (a) MoGr@CdS and (b) CdS@MoGrt ernary hybrids at low laser dose (0.02 mW).

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