najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2025-16-4-510-520najo-1453Research ArticleCHEMISTRY AND MATERIALS SCIENCEХИМИЯ И НАУКА О МАТЕРИАЛАХSelf-cleaning nanocomposite membranes based on sulfonated tetrafluoroethylene and g-C3N4 for water purificationСамоочищающиеся нанокомпозитные мембраны на основе сульфированного тетрафторэтилена и g-C3N4 для очистки водыhttps://orcid.org/0000-0002-1461-579XЧебаненкоМ. И.ChebanenkoM. I.

 Maria I. Chebanenko

Politechnicheskaya, 26, St. Petersburg, 194021, Russia 

m_chebanenko@list.ruhttps://orcid.org/0000-0001-9449-9487ЛебедевЛ. А.LebedevL. A.

Lev A. Lebedev 

Politechnicheskaya, 26, St. Petersburg, 194021, Russia 

1595lion@gmail.comhttps://orcid.org/0000-0003-2003-0672ТеневичМ. И.TenevichM. I.

Maksim I. Tenevich

Politechnicheskaya, 26, St. Petersburg, 194021, Russia 

chwm420@gmail.comhttps://orcid.org/0000-0001-9313-4267МартинсонК. Д.MartinsonK. D.

Kirill D. Martinson

Politechnicheskaya, 26, St. Petersburg, 194021, Russia 

martinsonkirill@mail.ruhttps://orcid.org/0000-0003-1637-8537ПримаченкоО. Н.PrimachenkoO. N.

Oleg N. Primachenko

Bolshoy Prospekt of Vasilyevsky Island, 31, St. Petersburg 199004, Russia

alex-prima@mail.ruhttps://orcid.org/0000-0001-5468-3909КононоваС. В.KononovaS. V.

Svetlana V. Kononova

Bolshoy Prospekt of Vasilyevsky Island, 31, St. Petersburg 199004, Russia

svkononova@list.ruhttps://orcid.org/0000-0002-8450-4278ПопковВ. И.PopkovV. I.

Vadim I. Popkov

Politechnicheskaya, 26, St. Petersburg, 194021, Russia 

vadim.i.popkov@mail.ioffe.ruIoffe InstituteRussian FederationBranch of Petersburg Nuclear Physics Institute Named by B. P. Konstantinov of National Research Centre “Kurchatov Institute” – Institute of Macromolecular CompoundsRussian Federation202503092025164510520Copyright © Chebanenko M.I., Lebedev L.A., Tenevich M.I., Martinson K.D., Primachenko O.N., Kononova S.V., Popkov V.I., 20252025Чебаненко М.И., Лебедев Л.А., Теневич М.И., Мартинсон К.Д., Примаченко О.Н., Кононова С.В., Попков В.И.Chebanenko M.I., Lebedev L.A., Tenevich M.I., Martinson K.D., Primachenko O.N., Kononova S.V., Popkov V.I.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/1453

Water contamination from industrial effluents is a significant environmental challenge due to the presence of organic dyes. This study presents the development of self-cleaning nanocomposite membranes based on sulfonated tetrafluoroethylene and 2D graphitic carbon nitride (g-C3N4) nanosheets for efficient water purification. The membranes were synthesized using solution casting with 1 and 5 wt. % g-C3N4 as a photocatalytic filler. A comprehensive physicochemical characterization was conducted using XRD, FTIR, SEM, DRS, and adsorption tests. The photocatalytic performance was assessed through the degradation of methylene blue under visible light. Results show that membranes with 5 wt. % g-C3N4 exhibit enhanced adsorption efficiency (k = 0.0800 min-1) and notable photocatalytic activity (k = 0.0083 min-1), leading to effective dye removal and self-cleaning functionality. These findings highlight the potential of hybrid polymer-nanomaterial membranes for sustainable wastewater treatment. The proposed membranes offer a promising solution for removing hazardous organic pollutants while maintaining long-term operational stability.

Загрязнение воды промышленными сточными водами представляет серьезную экологическую проблему, особенно из-за присутствия опасных органических красителей. В данном исследовании представлена разработка самоочищающихся нанокомпозитных мембран на основе сульфированного тетрафторэтилена и нанолистов двухмерного графитоподобного нитрида углерода (g-C3N4) для эффективной очистки воды. Мембраны были синтезированы методом литья с использованием 1 мас.% и 5 мас.% g-C3N4 в качестве фотокаталитического наполнителя. Была проведена комплексная физико-химическая характеристика с использованием РФА, ИК-Фурье спектроскопии, СЭМ, СДО и адсорбционных испытаний. Эффективность фотокаталитического процесса оценивали в процессе разложения метиленового синего под действием видимого света. Результаты показывают, что мембраны с содержанием 5 мас.% g-C3N4 обладают повышенной эффективностью адсорбции (k = 0.0800 мин–1) и заметной фотокаталитической активностью (k = 0.0071 мин–1), что приводит к эффективному удалению красителя и самоочищению. Эти результаты подчеркивают потенциал гибридных мембран из полимерных наноматериалов для устойчивой очистки сточных вод. Предлагаемые мембраны являются многообещающим решением для удаления опасных органических загрязнителей при сохранении долгосрочной эксплуатационной стабильности.полимерыне содержащие металлов катализаторыиономерные фторполимерные мембраныинтеллектуальные наноматериалыфотокатализусовершенствованные процессы окисленияудаление красителейвосстановление окружающей средыpolymersmetal-free catalystsionomeric fluoropolymer membranessmart nanomaterialsphotocatalysisadvanced oxidation processesdye removalenvironmental remediationM. I. Chebanenko, L. A. Lebedev, M. I. Tenevich, K. D. Martinson, and V. I. 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The authors declare that there are no conflicts of interest present.