|
ИСТИНА |
Войти в систему Регистрация |
ИПМех РАН |
||
UiO-66@SiO2 core-shell microparticles as stationary phases for the separation of small organic moleculesстатья
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: 18 апреля 2017 г.
- Авторы: Arrua R.D., Peristyy A., Nesterenko P.N., Das A., D’Alessandro D.M., Hilder E.F.
- Журнал: The Analyst
- Том: 142
- Номер: 3
- Год издания: 2017
- Издательство: Royal Society of Chemistry
- Местоположение издательства: United Kingdom
- Первая страница: 517
- Последняя страница: 524
- DOI: 10.1039/c6an02344d
- Аннотация: Composite particles containing the Zr-based metal-organic framework (MOF) UiO-66 were prepared using microwave-assisted solvothermal synthesis. Scanning electron microscopy, infrared spectroscopy, powder X-ray diffraction and nitrogen physisorption studies confirmed the deposition of 100-300 nm microporous particles with the UiO-66 topology on the surface of mesoporous 5 μm and non-porous 2.1 μm silica particles. The core-shell particles exhibited a unique flow-dependent separation selectivity (FDSS) effect which allows changes in both the retention and separation selectivity of small molecules by simple variation of the mobile phase flow rate under isocratic conditions. The impact of the loading of UiO-66 as well as the porosity of the underlying silica core (mesoporous and non-porous) on the FDSS effect was evaluated. The prepared adsorbents were also tested for the normal-phase (NP) and reversed-phase (RP) separation of xylene isomers, substituted benzenes and polyaromatic hydrocarbons (PAHs). Efficiencies of up to 32 400 plates per m (styrene, k 1.59) and 37 200 plates per m (anisole, k 2.90) were achieved under NP and RP modes, respectively. The results demonstrate the potential of novel MOF-based stationary phases for the separation of closely related compounds (e.g. positional isomers).
- Добавил в систему: Нестеренко Павел Николаевич
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | an142_0517-0524_Arrua.pdf | 913,0 КБ | 22 марта 2019 [NesnterenkoPN] |