Effect of multiwall carbon nanotubes on photo catalytic activity of CdS nanocrystals

Multiwall carbon nanotubes (MWNTs) decorated CdS nanocrystals have been synthesized by chemical method. Methylene blue dye as a probe has been used for determination of photo catalytic activity of CdS/MWNTs composites. Degradation of Methylene blue dye on CdS/MWNTs composites reveals that MWNTs could effectively increase the photocatalytic activity as well as rate of electron induced redox reaction of CdS nanocrystals. Structural, Optical and photocatalytic activity of MWNT-CdS composites have been characterized by X-ray Diffraction (XRD), UV–Vis Spectroscopy, Photoluminescence Spectroscopy (PL), and Scanning Electron Microscopy (SEM)