pimiПриборы и методы измеренийDevices and Methods of Measurements2220-95062414-0473BNTU10.21122/2220-9506-2024-15-1-7-17pimi-854Research ArticleСредства измеренийMeasuring instrumentsНаноструктурированные покрытия на основе Ленгмюра–Блоджетт плёнок перфтордекановой кислоты для гибких датчиков анализа ионов свинца в водеNanostructured Coatings Based on Langmuir–Blodgett Films of Perfluorodecanoic Acid for Flexible Sensors for the Analysis of Lead Ions in WaterМельниковаГ. Б.MelnikovaG. B.

Адрес для переписки:Мельникова Г.Б.Институт тепло- и массообмена им. А.В. Лыкова НАН Беларуси, ул. П. Бровки, 15, г. Минск 220072, Беларусь.e-mail: galachkax@gmail.com

 

 

Address for correspondence:Melnikova G.B.A.V. Luikov Heat and Mass Transfer Institute of NAS of Belarus,P. Brovki str., 15, Minsk 220072, Belarus e-mail: galachkax@gmail.com

galachkax@gmail.comСапсалёвД. В.SapsaliouD. V.

ул. П. Бровки, 15, г. Минск 220072, Беларусь

P. Brovki str., 15, Minsk 220072

ТолстаяТ. Н.TolstayaT. N.

ул. П. Бровки, 15, г. Минск 220072, Беларусь

P. Brovki str., 15, Minsk 220072

КорольковИ. В.KorolkovI. V.

ул. Ибрагимова, 1, г. Алматы 050032; ул. Сатпаева, 2, г. Астана 010008

Ibragimov str., 1, Almaty 050032; Satpaev str., 2, Astana 010008

ЧижикС. А.ChizhikS. A.

ул. П. Бровки, 15, г. Минск 220072

P. Brovki str., 15, Minsk 220072

ЖуманазарН. Н.ZhumanazarN. N.

ул. Ибрагимова, 1, г. Алматы 050032

Ibragimov str., 1, Almaty 050032

БарановаА. С.BaranovaA. S.

ул. П. Бровки, 15, г. Минск 220072

P. Brovki str., 15, Minsk 220072

ЗдоровецМ. В.ZdorovetsM. V.

ул. Ибрагимова, 1, г. Алматы 050032; ул. Сатпаева, 2, г. Астана 010008; ул. Мира, 19, г. Екатеринбург 620002, Россия

 

Ibragimov str., 1, Almaty 050032; Satpaev str., 2, Astana 010008; Mira str., 19, Ekaterinburg 620002, Russia

 

 

 

Институт тепло- и массообмена имени А.В. Лыкова Национальной академии наук Беларуси; Евразийский национальный университет имени Л.Н. ГумилеваБеларусьA.V. Luikov Heat and Mass Transfer Institute of the National Academy of Sciences of BelarusBelarusИнститут тепло- и массообмена имени А.В. Лыкова Национальной академии наук БеларусиБеларусьA.V. Luikov Heat and Mass Transfer Institute of the National Academy of Sciences of BelarusBelarusИнститут ядерной физики; Евразийский национальный университет имени Л.Н. ГумилеваКазахстанInstitute of Nuclear Physics; L.N. Gumilyov Eurasian National UniversityKazakhstanИнститут ядерной физикиКазахстанInstitute of Nuclear PhysicsKazakhstanИнститут ядерной физики; Евразийский национальный университет имени Л.Н. Гумилева; Уральский федеральный университетКазахстанInstitute of Nuclear Physics; L.N. Gumilyov Eurasian National University; Ural Federal UniversityKazakhstan202412042024151717Copyright © Мельникова Г.Б., Сапсалёв Д.В., Толстая Т.Н., Корольков И.В., Чижик С.А., Жуманазар Н.Н., Баранова А.С., Здоровец М.В., 20242024Мельникова Г.Б., Сапсалёв Д.В., Толстая Т.Н., Корольков И.В., Чижик С.А., Жуманазар Н.Н., Баранова А.С., Здоровец М.В.Melnikova G.B., Sapsaliou D.V., Tolstaya T.N., Korolkov I.V., Chizhik S.A., Zhumanazar N.N., Baranova A.S., Zdorovets M.V.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://pimi.bntu.by/jour/article/view/854

В результате антропогенной деятельности в окружающую среду поступает большое количество тяжёлых металлов. Важнейшей задачей является поиск методов контроля их  содержания  в воде. Трековые мембраны могут быть относительно легко модифицированы нанометровыми слоями функциональных материалов с использованием метода Ленгмюра‒Блоджетт, что позволяет направленно изменять структурные, селективные свойства поверхности мембран и получать новые материалы с заданными характеристиками. Цель работы ‒ разработка гибких сенсоров на основе трековых мембран из полиэтилентерефталата с нанослоями перфтордекановой кислоты для анализа ионов свинца в воде. Разработаны методики модификации полиэтилентерефталатных трековых мембран (ПЭТФ ТМ) монослойным покрытием на основе перфтордекановой кислоты (ПФДК) методом Ленгмюра–Блоджетт, а также двухслойными покрытиями ПФДК/ксиленоловый оранжевый (КО) путём выдерживания ПЭТФ ТМ/ПФДК в растворах красителя. Методом атомно-силовой микроскопии изучена микроструктура и локальные физико- механические свойства поверхности датчиков, методом «лежащей» капли оценена смачиваемость и значения удельной поверхностной энергии ПЭТФ ТМ до и после модификации. На основании измерения вольт-амперных характеристик установлено, что ПЭТФ ТМ/ПФДК имеют более высокий отклик электрохимических характеристик по сравнению с ПЭТФ ТМ и ПЭТФ ТМ/ПФДК/КО. Предельно допустимая концентрация обнаружения ионов свинца в водных растворах при рН = 12 составила 0,652 мкг/л в пределах 5 измерений.

As a result of anthropogenic activities, the environment is polluted by heavy metals. The most important task is to find methods to control their content in water. Track-etched membranes (TeMs) can be relatively easily modified by nanometer layers of functional materials with using the Langmuir‒Blodgett technique, which makes it possible to specifically change the structural, selective properties of the membrane surface and obtain new materials with desired properties. The aim of the work was to develop flexible sensors for the analysis of lead ions in water based on poly(ethylene terephthalate) (PET) TeMs with perfluorodecanoic acid (PFDA) nanolayers. Techniques for modifying TeMs based on PET with a monolayer coating based on PFDA by the Langmuir‒Blodgett method, and with two-layer coatings, formed by soaking PET TeMs/PFDA in xylenol orange solutions have been developed. The microstructure and local mechanical properties of the sensor surface were studied by atomic force microscopy, and the wettability and values of the specific surface energy of PET TeMs before and after modification were evaluated using the ''sessile'' drop method. Based on the measurement of  electrochemical  characteristics,  it  was  found  that PET TeMs/PFDA have a higher response of electrochemical characteristics compared to PET TeMs and PET TeMs/PFDA/XO. The limit of detection for lead ions in aqueous solutions at pH = 12 was of 0.652 µg/l within 5 measurements.

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