Фотокаталитическая деградация красителя бенгальской розы на механохимически синтезированном оксиде цинка под действием видимого света

В работе подведены итоги синтеза ZnO механохимическим методом с использованием прекурсора дигидрата оксалата цинка для изучения фотокаталитической деградации красителя Rose Bengal. Процесс превращения дигидрата оксалата цинка в ZnO был изучен с помощью анализа ТГА-ДТГ и ИК-Фурье-спектроскопии, полученные данные РФА четко выявили гексагональные вюрцитные кристаллитные структуры ZnO. Изображения FE-SEM подтвердили нанокристаллическую морфологию ZnO с примерно однородным распределением частиц по размерам. Чистота ZnO была подтверждена исследованием EDX. Оптическая ширина запрещенной зоны ZnO была определена с помощью УФ-видимой спектроскопии. Фотокаталитическую активность ZnO исследовали при разложении красителя бенгальской розы. Колориметрическое измерение поглощения использовали для оценки эффективности разложения. Каталитическую активность изучали в зависимости от концентрации красителя, емкости загрузки фотокатализатора, рН раствора красителя, времени облучения и т. д. Успешно изучена фотокаталитическая деструкция красителя бенгальского розового на механохимически синтезированном ZnO под действием видимого света.

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