Hydrophilic Indicates Surface Morphology Quality of TiO₂/CdS Nanocomposite Film

Abstract

Engineering and decoration on the surface of metal oxide semiconductor (TiO2) for increasing activity is challenging. Thus a novel method is introduced to determine surface morphology quality subsequently improving the photocatalytic behaviour. TiO2films are fabricated via laser deposition technique at various CdS thickness. Microstructural characterization and optical behaviours are characterized by felid emission scanning electron microscope (FE-SEM) and atomic force microscope (AFM). The hydrophilic property of TiO2/CdS nanocomposite film (NCF) is examined via contact angle measurements. The grain density is found linearly increased with the contact angle. A mutual relationship is revealed between hydrophilic property and crystallization with respect to the CdS thickness. Thus, surface morphology of nanocomposite quality is quantified based on the hydrophilic measurement