MOS2 Based Nanocomposites For Photocatalytic And Sensing Applications

Abstract

Human species survival on earth is governed by good health and environment. Conducive newlineenvironment depends on the amount of pollutants and industrial waste expelled by human newlinerace. These pollutants and toxic materials have to be detected and degraded to edible form newlinebefore releasing into atmosphere. Extensive research is on to find novel materials and newlinemethodologies for optimising the degradation and sensing of toxic materials. Dyes from newlinethe textile industrial are primary members in polluting the water sources. Water treatment newlinealong with degradation of these dyes is on high demand. Additionally, the sensing of newlinenitrobenzene, which is considered as toxic and hazards to human species, is mandatory. newlineMany semiconductors materials are being tested in this domain. In last few decades newlinetransition metal dichalcogenides (TMD) have attained a prominent place in this regard. newlineMolybdenum disulphide (MoS2), is one of the most fascinating material in TMD group, newlinewith many special features. newlineThis thesis encompasses the synthesis of MoS2 and its nanocomposites with ZnO and Ag. newlineFurther it covers employment of MoS2 based nanocomposites for photocatalysis and newlinesensingapplications newlineThe first chapter represents a brief introduction of Molybdenum disulphide nanoparticles newlineand its related literature survey. The growth of MoS2 along with its different phases, newlinepropertiesand applications are elaborated in this chapter. The prominent aspects related to newlineMoS2 reported by various research groups are also covered in this chapter. The chapteralso newlinebriefsabout various MoS2 based nanocomposites fabricated along with their properties. newlineThe second chapter provides a detailed account into the experimental techniques utilised newlineto achieve the objectives. A insight into characterisation techniquesused in this thesis is newlinealso provided here. The various characterisation techniques employed to characterise the newlinesynthesized nanoparticles and nanocomposites are X-raydiffraction (XRD), UV-visible newlinespectroscopy, XPS system, field emission scanning electron microscopy (SEM) an