kaz44Вестник Университета Шакарима. Серия технические наукиBulletin of Shakarim University. Technical Sciences2788-79953006-0524«Шәкәрім университеті» КеАҚkaz44-38Research ArticleТЕХНИЧЕСКИЕ НАУКИИЗГОТОВЛЕНИЕ 3D ПОРИСТЫХ ФОТОКАТАЛИЗАТОРОВ НА ОСНОВЕ НАНОПОРОШКОВ TIO2 И CO3O4 ДЛЯ ПРИМЕНЕНИЯ В ПРОИЗВОДСТВЕ ВОДОРОДАFABRICATION OF 3D POROUS PHOTOCATALYST BASED ON TIO2 AND CO3O4 NANOPOWDERS FOR HYDROGEN PRODUCTION APPLICATIONМерекеА. Л.MerekeA.

мнс

Алматы

УмирзаковА. Г.UmirzakovA.

мнс

Алматы

БейсеновР. Е.BeisenovR.

PhD, нс

Алматы

РахметовБ. А.RakhmetovB.

мнс

Алматы

Satbayev University, ТОО «Физико-технический институт»Казахстан20202009202003(91)137143Copyright © Мереке А.Л., Умирзаков А.Г., Бейсенов Р.Е., Рахметов Б.А., 20202020Мереке А.Л., Умирзаков А.Г., Бейсенов Р.Е., Рахметов Б.А.Mereke A., Umirzakov A., Beisenov R., Rakhmetov B.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://tech.vestnik.shakarim.kz/jour/article/view/38

Титанат кобальта (CoTiO3) является одним из многообещающих кандидатов для фотокаталитического окисления воды в видимом свете. В данном исследовании формирование многослойных трехмерных пористых структур осуществлялось путем смешивания нанопорошков Co3O4 и TiO2 с добавлением порообразующих агентов и последующим спеканием. Различные размеры кристаллитов пористого CoTiO3 были получены путем варьирования температуры спекания. Изготовленный трехмерный пористый CoTiO3 охарактеризовали с помощью рентгеноструктурный анализ, СЭМ, БЭТ, измерения эффективности. Размер кристаллитов увеличивается с повышением температуры спекания в диапазоне 600–800 °C. Фотокаталитическая активность трехмерного пористого CoTiO3 была изучена путем измерения скорости выделения H2 при расщеплении в 0,5 М водном растворе электролита KOH при облучении ксеноновой лампой 300 мВт/см2.

Cobalt titanate (CoTiO3) is one of the promising candidates for visible-light-driven photocatalytic water oxidation. In this research, the formation of multilayered 3D porous structures was performed by mixing Co3O4 and TiO2 nanopowders with adding pore-forming agents and further calcination. Different crystallite sizes of porous CoTiO3 were produced by varying the calcination temperature. The fabricated 3D porous CoTiO3 were characterized using XRD, SEM, BET, optical measuring technique. The crystallite size increases with increasing the calcination temperature within the range of 600-800°C. The photocatalytic activity of 3D porous CoTiO3 was studied by measuring the rate of H2 evolution during the splitting in 0.5M KOH aqueous solution electrolyte under 300 mW/cm2 xenon lamp irradiation

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The authors declare that there are no conflicts of interest present.