A comprehensive review on graphene/CdS nanocomposites: From synthesis to multifunctional applications

Since the invention of graphene and associated nanocomposites specifically those which involve the incorporation of CdS and various transition metals have appeared as promising nanostructures for diverse range of applications viz. energy storage, photocatalysis, sensing etc. The outstanding mechanical, thermal, electrical, photocatalytic traits of graphene along with suitable band gap and other characteristics of CdS, enable advanced materials performance of graphene/CdS nanocomposites in different applications. The deliberate incorporation of transition metals into graphene/CdS nanocomposites resulted into enhancement in microstructural, optical, electrical, topographical properties which open the avenue for active roles to different devices. The present review article offers an all-inclusive overview to graphene/CdS nanocomposites’s chemistry, development methodologies viz. chemical vapor deposition, solvothermal along with detailed characterizations using amicable techniques like XRD, SEM, Raman spectroscopy etc. The effect of doping of transition metals on the properties of graphene/CdS nanostructures is critically reported, highlighting significant enhancements in photocatalyic performance along with charge transfer dynamics. Present review article also identifies the practical issues in mass scale production along with potential research strategies to tune graphene-based nanocomposites for versatile technological appliances. • Potential of graphene/CdS nanocomposites doped with transition metals is highlighted for various applications in nanotechnology. • Properties and applications of the graphene/CdS nanocomposite are highlighted. • Strategies for improving the stability and sustainability of transition metal-doped nanocomposites are discussed. • Significance of graphene based nanocomposites is discussed.