inetics and Isotherm of Sunset Yellow Dye Adsorption on Cadmium Sulfide Nanoparticle Loaded on Activated Carbon

he obj ective of this study was to assess the potential of cadmium sulfide nanoparticles loaded ont o activated carbon (CdSN-AC) for the removal of sunset yellow (SY) dye fr om aqueous solution. Adsorption studies were conducted in a batch mode var ying solution pH, contact time, initial dye concentration, CdSN-AC dose. In order t o investigate the effici ency of SY adsorption on CdSN-AC, pseudo- first-order, pseudo-second- order kinetic models were studied. It was observed that the pseudo-second-order kinetic model fits better than other kinetic models with good corr elation coeffi cient. Equilibrium data were fitted t o the Langmuir model. It was found that the sorption of SY onto CdSN-AC is followed by these r esults.

dsorption; Sunset yell ow dye; CdS nanoparticle; Activated carbon; Adsorption isotherm; Kineti c of adsorption