Исследование фотокаталитической активности в двух световых диапазонах оксида Sr2Mn0,4Ti0,6O4 со структурой типа K2NiF4
https://doi.org/10.17586/2220-8054-2024-15-4-540-547
Аннотация
Изучены фотокаталитические свойства однофазного образца Sr2Mn0.4Ti0.6O4 как представителя серии твердых растворов Sr2MnxTi1-xO4 (x = 0,05; 0,15; 0,25; 0,4), полученного методом СВС. Образец, отожженный при 1200°С, характеризуется равномерным распределением Sr, Ti и Mn степени окисления (4+) внутри агрегатов, средний размер которых не превышает 1 мкм. По данным UV-Vis-NIR -спектроскопии при легировании его 40 мол% марганца наблюдается сужение запрещенной зоны Sr2TiO4 с 3,16 до 1,8 эВ. Это связано с высокой фотоактивностью Sr2Mn0,4Ti0,6O4 в реакции окисления HQ в УФ и синем свете.
Об авторах
Т. Чупахина
Institute of Solid State Chemistry UB RAS
Россия
Россия
О. Гырдасова
Institute of Solid State Chemistry UB RAS
Россия
Россия
А. Упорова
Institute of Solid State Chemistry UB RAS
Россия
Россия
Л. Булдакова
Institute of Solid State Chemistry UB RAS
Россия
Россия
М. Янченко
Institute of Solid State Chemistry UB RAS
Россия
Россия
Д. Мамедов
Zavoisky Physical-Technical Institute, FRC Kazan Scientific Center of RAS
Россия
Россия
Ю. Деева
Institute of Solid State Chemistry UB RAS
Россия
Россия
И. Бакланова
Institute of Solid State Chemistry UB RAS
Россия
Россия
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Рецензия
Для цитирования:
Чупахина Т., Гырдасова О., Упорова А., Булдакова Л., Янченко М., Мамедов Д., Деева Ю., Бакланова И. Исследование фотокаталитической активности в двух световых диапазонах оксида Sr2Mn0,4Ti0,6O4 со структурой типа K2NiF4. Наносистемы: физика, химия, математика. 2024;15(4):540-547. https://doi.org/10.17586/2220-8054-2024-15-4-540-547
For citation:
Chupakhina T.I., Gyrdasova O.I., Uporova A.M., Buldakova L.Y., Yanchenko M.Y., Mamedov D.V., Deeva Yu.A., Baklanova I.V. Study of photocatalytic activity in two light ranges of Sr2Mn0.4Ti0.6O4 oxide with the K2NiF4-type structure. Nanosystems: Physics, Chemistry, Mathematics. 2024;15(4):540-547. https://doi.org/10.17586/2220-8054-2024-15-4-540-547
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