Сравнительное исследование фотокаталитической деградации красителя ксиленолового оранжевого под действием естественного солнечного света с наночастицами ZnO, синтезированными механохимическим и гидротермальным способами

Работа посвящена механохимическому и гидротермальному синтезу ZnO, определению его характеристик и фотокаталитическому применению. Механохимический и гидротермальный синтез ZnO состоит из двух стадий: образования прекурсоров и последующего их прокаливания. Подходящая температура прокаливания исходных материалов для получения ZnO была определена с помощью DTA/TG и FTIR-спектроскопии. Данные XRD этих образцов указывают на гексагональную кристаллическую структуру вюрцита ZnO. Фотографии FESEM образцов окида цинка, синтезированных механохимическим и гидротермальным методами показали морфологию нанокристаллических гексагональных гранул и блочных частиц соответственно. Спектры EDX этих образцов подтверждают их элементную чистоту. Исследование UV-DRS использовалось для измерения оптической ширины запрещенной зоны образцов ZnO. Оптические свойства образцов ZnO также изучались по спектрам PL при комнатной температуре. Фотокаталитическое применение вышеупомянутых образцов ZnO было исследовано с ксиленоловым оранжевым в качестве модельного органического красителя. Эффективность PCD ZnO оценивалась в процентах разложения по отношению к различным рабочим факторам.

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