danДоклады Национальной академии наук БеларусиDoklady of the National Academy of Sciences of Belarus1561-83232524-2431The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"10.29235/1561-8323-2024-68-3-247-254dan-1197Research ArticleТЕХНИЧЕСКИЕ НАУКИTECHNICAL SCIENCESКомпозиционные покрытия полиметилметакрилата с наночастицами диоксида кремния для емкостных датчиков контроля содержания никеля в водеComposite coatings of poly(methyl methacrylate) with silicon dioxide nanoparticles for capacitive sensors of nickel content control in waterСапсалёвД. В.SapsaliouD. V.

Сапсалёв Дмитрий Владимирович – мл. науч. Сотрудник

ул. П. Бровки, 15, 220072, Минск;

аспирант

ул. Советская, 18, 220030, Минск

Sapsaliou Dmitry V. – Junior Researcher

15, P. Brovka Str., 220072, Minsk;

Postgraduate Student

18, Sovetskaya Str., 220030, Minsk

dsapsalev@list.ruМельниковаГ. Б.MelnikovaG. B.

Мельникова Галина Борисовна – канд. техн. наук, ст. науч. Сотрудник

ул. П. Бровки, 15, 220072, Минск

Melnikova Galina B. – Ph. D. (Engineering), Senior Researcher

15, P. Brovka Str., 220072, Minsk

galachkax@gmail.comАксючицА. В.AksiuchytsA. V.

Аксючиц Александр Владимирович – аспирант, мл. науч. Сотрудник

ул. П. Бровки, 6, 220013, Минск

Aksiuchyts Aliaksandr V. – Postgraduate Student, Junior Researcher

6, P. Brovka Str., 220013, Minsk

a.aksiuchyts@bsuir.byТолстаяТ. Н.TolstayaT. N.

Толстая Татьяна Николаевна – науч. Сотрудник

ул. П. Бровки, 15, 220072, Минск

Tolstaya Tatyana N. – Researcher

15, P. Brovka Str., 220072, Minsk

tolstaya.tn@yandex.ruКотовД. А.KotovD. A.

Котов Дмитрий Анатольевич – канд. техн. наук, доцент

ул. П. Бровки, 6, 220013, Минск

Kotov Dmitry A. – Ph. D. (Engineering), Associate Professor

6, P. Brovka Str., 220013, Minsk

kotov@bsuir.byЧижикС. А.ChizhikS. A.

Чижик Сергей Антонович – академик, д-р техн. наук, профессор, гл. науч. Сотрудник

ул. П. Бровки, 15, 220072, Минск

Chizhik Sergei A. – Academician, D. Sc. (Engineering), Professor, Chief Researcher

15, P. Brovka Str., 220072, Minsk

chizhik_sa@tut.byИнститут тепло- и массообмена им. А. В. Лыкова НАН Беларуси; Белорусский государственный педагогический университет им. М. ТанкаA. V. Luikov Heat and Mass Transfer Institute of the National Academy of Sciences of Belarus; Belarusian State Pedagogical University named after Maxim TankИнститут тепло- и массообмена им. А. В. Лыкова НАН БеларусиA. V. Luikov Heat and Mass Transfer Institute of the National Academy of Sciences of BelarusБелорусский государственный университет информатики и радиоэлектроникиBelarusian State University of Informatics and RadioelectronicsИнститут тепло- и массообмена им. А. В. Лыкова НАН БеларусиA.V. Luikov Heat and Mass transfer Institute of the National Academy of Sciences of Belarus202408072024683247254Copyright © Сапсалёв Д.В., Мельникова Г.Б., Аксючиц А.В., Толстая Т.Н., Котов Д.А., Чижик С.А., 20242024Сапсалёв Д.В., Мельникова Г.Б., Аксючиц А.В., Толстая Т.Н., Котов Д.А., Чижик С.А.Sapsaliou D.V., Melnikova G.B., Aksiuchyts A.V., Tolstaya T.N., Kotov D.A., Chizhik S.A.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://doklady.belnauka.by/jour/article/view/1197

Загрязнение окружающей среды, в частности источников воды, тяжелыми металлами является серьезной экологической проблемой. В связи с этим актуальна разработка новых сенсорных систем, позволяющих проводить экспресс-тесты и не уступающих при этом по аналитическим параметрам классическим методам детекции тяжелых металлов. Перспективными материалами для создания таких сенсорных систем являются композиционные покрытия на основе полимерных соединений с неорганическими наночастицами. В работе представлены результаты применения покрытий полиметилметакрилата (ПММА) и нанокомпозитов ПММА с наночастицами диоксида кремния (нч-SiO2) для разработки емкостных датчиков анализа содержания ионов Ni2+ в воде. Методом атомно-силовой микроскопии исследованы структурно-морфологические характеристики проводящего никелевого слоя и наноструктурированных пленок на основе полиметилметакрилата. На основании экспериментальных данных зависимости емкостных характеристик датчиков от концентрации Ni2+ в растворах установлены рабочие характеристики сенсоров: время отклика – 5 мин; рабочий диапазон концентраций ионов Ni2+: 1 10–3–50 мМ; нижний предел обнаружения ≈0,06 мг/л (ПДК никеля в воде – 0,1 мг/л). Показано, что формирование на проводящем слое никеля покрытия состава ПММА + нч-SiO2 (1 : 41,7 моль) методом спин-коатинга приводит к увеличению чувствительности датчика и срока его службы (до семи циклов).

Pollution of the environment, in particular water sources, with heavy metals is a serious environmental problem. In this regard, it is relevant to develop new sensor systems that allow rapid tests and are not inferior in analytical parameters to classical methods for detecting heavy metals. Promising materials for creating such sensor systems are composite coatings based on polymer compounds with inorganic nanoparticles. The article presents the results of using poly(methyl methacrylate) (PMMA) coatings and PMMA nanocomposites with silicon dioxide nanoparticles (SiO2 NPs) to develop capacitive sensors for analyzing the content of Ni2+ ions in water. The structural and morphological characteristics of a conductive nickel layer and nanostructured films based on poly(methyl methacrylate) were studied using atomic force microscopy. Based on the experimental data on the dependence of the capacitance characteristics of sensors on the concentration of Ni2+ in solutions, the operating characteristics of sensors were established: response time is 5 min; working range of concentrations of Ni2+ ions: 1 ‧ 10–3 – 50 mM; lower detection limit ≈ 0.06 mg/l (maximum nickel concentration limit in water is 0.1 mg/l). It has been shown that the formation of a coating of the composition PMMA + NPs-SiO2 (1 : 41.7 mol) on a conductive nickel layer using the spin-coating method leads to increasing the sensitivity of a sensor and its service life (up to seven cycles).

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