Hierarchically Porous Materials Built of Fe-Ssilicalite Nanobeads Научная публикация
| Журнал |
Journal of Materials Chemistry A, Materials for Energy and Sustainability
ISSN: 2050-7488 , E-ISSN: 2050-7496 |
||||||
|---|---|---|---|---|---|---|---|
| Вых. Данные | Год: 2014, Том: 2, Номер: 38, Страницы: 16061-16070 Страниц : 10 DOI: 10.1039/c4ta02904f | ||||||
| Ключевые слова | PHARMACEUTICALLY ACTIVE COMPOUNDS; ARGON ADSORPTION; WASTE-WATER; TAP WATER; CATALYSTS; ZEOLITES; IRON; OXIDATION; NITROGEN; Fe-ZSM-5 | ||||||
| Авторы |
|
||||||
| Организации |
|
Информация о финансировании (3)
| 1 | Российский фонд фундаментальных исследований | 12-03-93116 |
| 2 | Российский научный фонд | 14-13-01155 |
| 3 | Фонд «Сколково» | 1 от 28.11.2013 |
Реферат:
Hierarchically porous zeolite materials built of closely and randomly packed uniform Fe-silicalite nanobeads were synthesized. The desired assembly of nanobeads was achieved by the centrifugation and sedimentation of nanozeolite suspension followed by drying and calcination. A micro/meso/macroporous Fe-silicalite material with spongy texture built of closely packed nanocrystals was designed using polystyrene latex as a supramolecular template. Large Fe-silicalite microbeads were synthesized to compare their structure with the nanocrystalline materials. The synthesized samples were characterized by laser diffraction analysis, X-ray diffraction, scanning and transmission electron microscopy, energy-dispersive X-ray spectroscopy, argon and nitrogen adsorption measurements, inductively coupled plasma optical emission spectrometry, UV visible diffuse reflectance spectroscopy and temperature-programmed desorption of ammonia. Fe-silicalite nanozeolite materials have shown high crystallinity, and possess micro- and meso/macropore surface areas and high specific pore volumes. Pellets built of closely packed nanocrystals have exhibited good mechanical stability in benzene and water. Calcined Fe-silicalite materials built of nanobeads were observed to contain highly dispersed ferric clusters no more than 1 nm in size. The 3 nm ferric clusters in the zeolitic microbeads resulted in the appearance of Lewis acid sites with medium strength, which are absent in the nanobeads. Catalytic performance of hierarchically porous Fe-silicalites was studied in the total oxidation of clarithromycin lactobionate by H2O2at 323 K compared with Fe-silicalite microbeads. Hierarchical Fe-silicalites are more efficient catalysts vs. Fe-silicalite microbeads due to increased catalytic site accessibility.
Библиографическая ссылка:
Sashkina K.S.
, Rudina N.A.
, Lysikov A.I.
, Ayupov A.B.
, Parkhomchuk E.V.
Hierarchically Porous Materials Built of Fe-Ssilicalite Nanobeads
Journal of Materials Chemistry A, Materials for Energy and Sustainability. 2014. V.2. N38. P.16061-16070. DOI: 10.1039/c4ta02904f WOS Scopus РИНЦ CAPlusCA OpenAlex
Hierarchically Porous Materials Built of Fe-Ssilicalite Nanobeads
Journal of Materials Chemistry A, Materials for Energy and Sustainability. 2014. V.2. N38. P.16061-16070. DOI: 10.1039/c4ta02904f WOS Scopus РИНЦ CAPlusCA OpenAlex
Даты:
| Поступила в редакцию: | 9 июн. 2014 г. |
| Принята к публикации: | 25 июл. 2014 г. |
| Опубликована online: | 28 июл. 2014 г. |
Идентификаторы БД:
| Web of science: | WOS:000342079200050 |
| Scopus: | 2-s2.0-84907158096 |
| РИНЦ: | 23988732 |
| Chemical Abstracts: | 2014:1221823 |
| Chemical Abstracts (print): | 161:425318 |
| OpenAlex: | W1969456025 |