Synthesis and modification of KIT- ۶ with Zn doped CdS nanoarchitectureand its application in photocatalytic degradation of methyl green

In this study, the mesoporous silica KIT-۶ modified with Zn-doped CdS nano architectureswas prepared for efficient photocatalytic properties, and the degradation of methyl green inaqueous solution under visible light was taken as a photocatalytic test. The preparednanocomposite was characterized by X-ray Diffraction (XRD), nitrogen adsorption-desorptionanalysis (BET), FT-IR, field effect scanning electron microscopy (FE-SEM), and UV−Visspectroscopy. The results show that CdS with a small amount of Zn doping can lead to an enhancedphotocatalytic activity of Zn-CdS/KIT-۶. We found that The mesoporous silica KIT-۶ with highsurface area and three-dimensional connections with a network of interconnected channels is asuitable choice of support for these nano architectures [۱,۲]. The obtained data from UV-Visstudies shows that ۵mg of the prepared photocatalyst containing ۴.۸% of Zn doped CdS speciescan degrade ۵۰ ml of methyl green solution with a concentration of ۱۸ mg/l within ۴۵ min undervisible irradiation. The stability of the prepared photocatalyst was checked and it can be usedseveral times without losing much of its activity

کلیدواژه ها:

CdS ، KIT-۶ ، Methyl Green ، Photocatalysis