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- W2510367619 abstract "A novel hydrothermal approach for synthesizing CdS quantum dots (QDs) and nano-heterostructured CdS/ZnS QDs has been reported. This innovative approach proved to reproduce nanoparticles with extraordinary electronic and optical properties. The as-synthesized CdS and CdS/ZnS nano-heterostructured QDs were characterized by X-ray diffraction (XRD), UV-visible spectroscopy (UV-Vis), Transmission electron scanning (TEM), high resolution transmission electron scanning (HR-TEM), X-ray photoelectron scanning (XPS), and photoluminescence (PL) emission spectra. The average particle sizes of CdS and CdS/ZnS QDs as shown by XRD and TEM, were 4~6 nm. The optical band gap of CdS and ZnS/CdS nanoparticles was calculated from Tauc plot using UV-vis spectra. The estimated band gaps are measured to be 2.8 and 3.3 eV for CdS and CdS/ZnS QDs, respectively. The blue shift of the absorption edge compared to that of bulk clearly explained the quantum confinement effect. Such nano-hetrostructures of CdS/ZnS provided enhanced physical properties compared to individual CdS nanoparticles. The photocatalytic activity of the photo-stable CdS/ZnS was found to be superior towards the photodegradation of Methylene Blue, MB, dye than that of CdS QDs under visible light irradiation. The enhanced photodegradation mechanism of the nano-heterostructure was investigated and correlated with the optoelectronic properties." @default.
- W2510367619 created "2016-09-16" @default.
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- W2510367619 date "2016-08-11" @default.
- W2510367619 modified "2023-09-27" @default.
- W2510367619 title "Nano-heterostructured photo-stable Cd_xZn_1−xS heterojunction as a non-photocorrosive visible light active photocatalyst" @default.
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- W2510367619 doi "https://doi.org/10.1364/ome.6.002857" @default.
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