g-C3N4, модифицированный Ni(OH)2 и Co(OH)2, для фотокаталитического восстановления CO2
https://doi.org/10.17586/2220-8054-2026-17-1-81-89
Аннотация
В работе представлены синтез и характеристика композитных фотокатализаторов на основе g-C3N4, модифицированного Ni(OH)2 и Co(OH)2, для восстановления CO2 под действием видимого света (λ = 410 нм). Исследования методом РФА, УФ-вид спектроскопии и ПЭМ ВР показали, что осаждение гидроксидов не нарушает кристаллическую структуру g-C3N4, однако приводит к незначительному увеличению межслоевого расстояния и ширины запрещенной зоны. Ni(OH)2 представлен наночастицами размером около 7 нм, тогда как Co(OH)2 кристаллизуется в виде более крупных частиц размером ~24 нм. По данным ПЭМ установлено, что после фотокаталитического восстановления CO2 происходит частичная агломерация Ni(OH)2/NiO. Катализатор, содержащий 0,1 масс.% Ni(OH)2, продемонстрировал наибольшую фотокаталитическую активность – 7,04 мкмоль г-1 ч-1, что в 1,9 раза выше по сравнению с исходным g-C3N4. Для фотокатализатора 0,5 масс.% Co(OH)2/g-C3N4 наблюдалось увеличение активности в 1,3 раза относительно исходного g-C3N4. Полученное улучшение активности обусловлено формированием гетероперехода типа II между g-C3N4 и Ni(OH)2, что способствует эффективному переносу зарядов и подавлению их рекомбинации.
При поддержке: The work was financially supported by Russian Science Foundation No. 24-43-03010.
Об авторах
А. В. Журенок
Federal Research Center Boreskov Institute of Catalysis SB RAS
Россия
Россия
А. Е. Ермошкина
Federal Research Center Boreskov Institute of Catalysis SB RAS; Novosibirsk National Research State University
Россия
Россия
А. Е. Зазуля
Novosibirsk National Research State University; A.V. Nikolaev Institute of Inorganic Chemistry SB RAS
Россия
Россия
Д. Д. Мищенко
Federal Research Center Boreskov Institute of Catalysis SB RAS; Multiaccess Center “SKIF” Boreskov Institute of Catalysis
Россия
Россия
Е. Ю. Герасимов
Federal Research Center Boreskov Institute of Catalysis SB RAS
Россия
Россия
Е. А. Козлова
Federal Research Center Boreskov Institute of Catalysis SB RAS
Россия
Россия
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Рецензия
Для цитирования:
Журенок А.В., Ермошкина А.Е., Зазуля А.Е., Мищенко Д.Д., Герасимов Е.Ю., Козлова Е.А. g-C3N4, модифицированный Ni(OH)2 и Co(OH)2, для фотокаталитического восстановления CO2. Наносистемы: физика, химия, математика. 2026;17(1):81-89. https://doi.org/10.17586/2220-8054-2026-17-1-81-89
For citation:
Zhurenok A.V., Ermoshkina A.E., Zazulya A.E., Mishchenko D.D., Gerasimov E.Yu., Kozlova E.A. Ni(OH)2 and Co(OH)2 modified g-C3N4 for photocatalytic CO2 reduction. Nanosystems: Physics, Chemistry, Mathematics. 2026;17(1):81-89. (In Russ.) https://doi.org/10.17586/2220-8054-2026-17-1-81-89
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