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Issue 23, 2017
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Visible-light active tin selenide nanostructures: synthesis, characterization and photocatalytic activity

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Abstract

A simple approach to synthesizing tin selenide nanostructures showing superior photocatalytic performance with variable tin ratios via a facile chemical method is reported in this study. The crystalline phase, morphology, oxidation states of elements, surface composition and optical properties of the photocatalysts were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and UV-vis spectroscopy, respectively. The photocatalytic activity was evaluated by the degradation of methylene blue (MB) under visible-light irradiation, indicating that SnSe exhibits excellent photocatalytic performance with a maximum % degradation efficiency of MB up to 92.91% after 40 min of light irradiation. These materials were also used as photocatalysts for the degradation of Congo red (CR) and the results showed 98% degradation of Congo red which is much higher than other photocatalysts. The possible degradation pathway is also presented. Indeed, SnSe nanostructures with variable tin ratios behaved as highly efficient photocatalysts and could be promising for future industrial applications for wastewater treatment.

Graphical abstract: Visible-light active tin selenide nanostructures: synthesis, characterization and photocatalytic activity

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Publication details

The article was received on 18 Oct 2017, accepted on 31 Oct 2017 and first published on 31 Oct 2017


Article type: Paper
DOI: 10.1039/C7NJ04030J
Citation: New J. Chem., 2017,41, 14689-14695
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    Visible-light active tin selenide nanostructures: synthesis, characterization and photocatalytic activity

    M. N. Ashiq, S. Irshad, M. F. Ehsan, S. Rehman, S. Farooq, M. Najam-Ul-Haq and A. Zia, New J. Chem., 2017, 41, 14689
    DOI: 10.1039/C7NJ04030J

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