Enhanced Photocatalytic Activity of ZnS:Mn2+ Quantum Dots
- Авторы: Sergeeva K.1, Sergeev A.1, Postnova I.2,3, Shchipunov Y.3, Voznesenskiy S.1
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Учреждения:
- Institute of Automation and Control Processes of Far-Eastern Branch of Russian Academy of Sciences
- Far-Eastern Federal University
- Institute of Chemistry of Far-Eastern Branch of Russian Academy of Sciences
- Выпуск: Том 53, № 16 (2019)
- Страницы: 2151-2154
- Раздел: Quantum Wells and Quantum Dots
- URL: https://journals.rcsi.science/1063-7826/article/view/207623
- DOI: https://doi.org/10.1134/S1063782619120261
- ID: 207623
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Аннотация
The photocatalytic activity of Mn2+ doped ZnS quantum dots stabilized by glutathione capping agent in aqueous media was studied in situ by photoluminescence spectroscopy. The methylene blue was chosen as model organic dye for photodecomposition under excitation in near UV-range. It is shown that the rate of photodegradation of the methylene blue depends strictly on the concentration of the manganese activator ions and the presence of its own intrinsic defects in the host ZnS crystal lattice. It is found that the most effective photocatalyst are ZnS quantum dots doped with 0.25 at % of Mn2+ providing the total dye decolorization within 5 minutes.
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Об авторах
K. Sergeeva
Institute of Automation and Control Processes of Far-Eastern Branch of Russian Academy of Sciences
Автор, ответственный за переписку.
Email: kspetrovyh@mail.ru
Россия, Vladivostok, 690041
A. Sergeev
Institute of Automation and Control Processes of Far-Eastern Branch of Russian Academy of Sciences
Автор, ответственный за переписку.
Email: sergeev@iacp.dvo.ru
Россия, Vladivostok, 690041
I. Postnova
Far-Eastern Federal University; Institute of Chemistry of Far-Eastern Branch of Russian Academy of Sciences
Автор, ответственный за переписку.
Email: postnovairina@yandex.ru
Россия, Vladivostok, 690091; Vladivostok, 690022
Y. Shchipunov
Institute of Chemistry of Far-Eastern Branch of Russian Academy of Sciences
Автор, ответственный за переписку.
Email: yas@ich.dvo.ru
Россия, Vladivostok, 690022
S. Voznesenskiy
Institute of Automation and Control Processes of Far-Eastern Branch of Russian Academy of Sciences
Автор, ответственный за переписку.
Email: vss@iacp.dvo.ru
Россия, Vladivostok, 690041