Manganese Doped Zinc Sulfide Quantum Dots as Efficient Photocatalyst for Dye Decolorization
- Authors: Sergeeva K.A.1, Sergeev A.A.1,2, Postnova I.V.1, Voznesenskiy S.S.1,2
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Affiliations:
- Far Eastern Federal University
- Institute of Automation and Control Processes FEB RAS
- Issue: Vol 52, No 16 (2018)
- Pages: 2143-2145
- Section: 26th INTERNATIONAL SYMPOSIUM “NANOSTRUCTURES: PHYSICS AND TECHNOLOGY”. QUANTUM WELLS AND QUANTUM DOTS
- URL: https://journals.rcsi.science/1063-7826/article/view/205529
- DOI: https://doi.org/10.1134/S1063782618160261
- ID: 205529
Cite item
Abstract
A simple aqueous based synthesis technique at room temperature was performed for preparation of pure and manganese (Mn2+) doped ZnS quantum dots in the presence of glutathione as the capping agent. Under UV-excitation quantum dots show photoluminescence bands at 2.13 and 3.0 eV corresponded to Mn2+ and intrinsic ZnS emission respectively. ZnS quantum dots were used as the photocatalyst to remove organic dyes in aqueous solution, with methylene blue as a model dye. The influence of the Mn2+ concentration on the dye degradation efficiency was studied. The highest photocatalytic degradation rate of methylene blue was obtained for ZnS quantum dots in glutathione shell doped with 0.125 at % of Mn2+.
About the authors
K. A. Sergeeva
Far Eastern Federal University
Author for correspondence.
Email: kspetrovyh@mail.ru
Russian Federation, Vladivostok
A. A. Sergeev
Far Eastern Federal University; Institute of Automation and Control Processes FEB RAS
Email: kspetrovyh@mail.ru
Russian Federation, Vladivostok; Vladivostok
I. V. Postnova
Far Eastern Federal University
Email: kspetrovyh@mail.ru
Russian Federation, Vladivostok
S. S. Voznesenskiy
Far Eastern Federal University; Institute of Automation and Control Processes FEB RAS
Email: kspetrovyh@mail.ru
Russian Federation, Vladivostok; Vladivostok