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    Photocatalytic degradation of methylene blue with Co alloyed CdZnS nanoparticles
    (Springer, 2018) Horoz, Sabit; Baytar, Orhan; Sahin, Omer; Kilicvuran, Hilal
    In our present study, firstly; cadmium zinc sulfide (CdZnS) nanoparticles (NPs) with 1, 2, 5, 10% of Zn concentration were synthesized in aqueous solution by simple chemical co-precipitation method and their photocatalytic activity was investigated using the degradation of methylene blue under visible light in air at room temperature. It was found that CdZnS NPs with 2% of Zn concentration indicates the highest degradation efficiency compare to other Zn concentrations. CdZnS NPs with 2% of Zn concentration was symbolized as CdZnS_1. Later; 0.1, 0.2, 0.5, 1, 5, 10% of cobalt (Co) concentration was separately alloyed on the CdZnS_1 NPs. It was oberved that Co(5%):CdZnS NPs has the highest degradation efficiency. Structure, surface morphology, elemental analysis and optical properties of CdZnS_1 and Co (5%): CdZnS NPs 0were analyzed using X-ray diffraction (XRD), scanning electron microscopy, energy dispersive X-ray and UV-Vis absorption measurements, respectively. The results showed that Co doped CdZnS NPs can be employed as capable materials to ehance the photocatalytic activity.
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    Öğe
    Synthesis, structural, optical and photocatalytic properties of Fe-alloyed CdZnS nanoparticles
    (Springer, 2018) Baytar, Orhan; Sahin, Omer; Kilicvuran, Hilal; Horoz, Sabit
    In this study, Fe-alloyed CdZnS nanoparticles (NPs) with 1% Fe concentration (Fe (1%): CdZn (2%)S) were synthesized by chemical precipitation at room temperature. The synthesized NPs were used as a catalyst for the decomposition of methylene blue under UV light. The obtained results showed that the photocatalytic activity of Fe (1%): CdZn (2%)S NPs was higher than that of CdZn (2%)S NPs. It was determined that the kinetics of the photocatalytic degradation of the methylene blue (MB) correspond to the pseudo-second order kinetics model. In addition to the photocatalytic properties, the structural, morphological and optical properties of Fe (1%): CdZn (2%)S NPs were investigated.