Synthesis and photoluminescence of wurtzite CdS and ZnS architectural structures via a facile solvothermal approach in mixed solvents

Thiourea assisted hydrothermal synthesis of ZnS/CdS/Ag2S nanocatalysts for photocatalytic degradation of Congo red under direct sunlight illumination

“…36-1450). 26,27 From the XRD pattern of ZnS/CdS (Fig. 1(b)), it was noticed that the diffraction peaks have shown a shi in peak position that are corresponding to hexagonal phase 28 and was found to be good agreement with literature value.…”

“…They have two emission bands, which are This journal is © The Royal Society of Chemistry 2016 mainly located at 410 and 450 nm the weak emission bands at 410 is ascribed to the sulfur vacancies or defects in the sample surface. 13,35 The reduction in PL intensity peak was observed in the case of ZnS/CdS/Ag 2 S catalyst when compared to bare ZnS, which reveals that the suppression of photogenerated electronhole pairs is achieved by ternary system. Further, the Fig.…”

“…They have potential applications in the eld of light-emitting diodes, optoelectronic devices, photocatalysis, the phosphors in thin-lms, electroluminescent devices and solar cells. [11][12][13] However, the continuous research demonstrated the development of Ag-CdS, 14 PANI-CdS, 15 graphene with metal suldes 16 (MoS 2 , Ag 2 S, CdS and CuS), SnS 2 -MgFe 2 O 4 /graphene oxide, 17 graphene based materials, 18 graphitic carbon nitride-metal oxide/metal chalcogenides, 19 solar light driven photocatalysts 20 and graphene-CdS 21 for photocatalysis and hydrogen generation applications. ZnS/CdS nanocatalyst has been obtained through coprecipitation method and its photocatalytic activity of various dyes has been reported.…”