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Green and rapid preparation of long-term stable aqueous dispersions of fullerenes and endohedral fullerenes: The pros and cons of an ultrasonic probeстатья Исследовательская статья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 12 января 2022 г.
- Авторы: Mikheev Ivan V., Pirogova Mariya O., Usoltseva Liliia O., Uzhel Anna S., Bolotnik Timofey A., Kareev Ivan E., Bubnov Viacheslav P., Lukonina Natalia S., Volkov Dmitry S., Goryunkov Alexey A., Korobov Mikhail V., Proskurnin Mikhail A.
- Журнал: Ultrasonics Sonochemistry
- Год издания: 2021
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Номер статьи: 105533
- DOI: 10.1016/j.ultsonch.2021.105533
- Аннотация: A green, scalable, and sustainable approach to prepare aqueous fullerene dispersions (AFD) C60, C70, endohedral metallofullerene Gd@C82, and their derivatives C60Cl6, C70Cl10, and supramolecular and ester-like derivatives, 10 fullerene species total, is proposed. For the first time, an immersed ultrasonic probe was used to preparing dispersions for pristine fullerenes without addends. Both ultrasound-assisted solvent-exchange and direct sonication techniques for AFD preparation using an immersed probe were tested. The average time for AFD preparation decreases 10–15 times compared to an ultrasound-bath-assisted technique, while final fullerene concentrations in AFDs remained at tens of ppm (up to 80 ppm). The aqueous dispersions showed long-term stability, a negatively charged surface with a zeta potential up to –32 mV with an average nanocluster diameter of no more than 180 nm. The total anionic and cationic compositions of samples were found by inductively coupled plasma atomic emission spectroscopy and chromatographic techniques. The highlights and challenges of using an ultrasound probe for AFD production are discussed.
- Добавил в систему: Михеев Иван Владимирович