PHOTOCATALYTIC DEGRADATION OF CARCINOGENIC RHODAMINE 6G DYE BY STRONTIUM AND TIN DOPED CADMIUM SULPHIDE NANOPARTICLES

Abstract

Pure, Sn and Sr doped Cadmium Sulphide photocatalysts were prepared by chemical coprecipitation method with different proportion of dopant (CdxSrySn1-x+yS). The prepared samples were characterised by SEM (Scanning Electron Microscopy), EDX (Energy Dispersive X-Ray Diffraction, and XRD (X-Ray diffraction) spectroscopy. Structural and optical study reveals, the size and band gap was reduced than pure CdS. Photocatalytic degradation experiments were carried out in UV-Photo reactor for degradation study and in sunlight. The photocatalytic activity of Sr and Sn doped Cadmium Sulphide was studied by changing the factors pH, light intensity, catalyst loading and reuse of photocatalyst were studied by the degradation of R6G dye. The photocatalytic activity doped CdS and undoped CdS was compared by means of oxidative photocatalytic degradation of R6G dye. Doped Cadmium Sulphide photocatalyst was observed more effective and efficient than undoped Cadmium Sulphide.