State and Properties of a Carbon Sorbent Modified with a Bioactive Substance
Научная публикация
| Общая информация |
Язык:
Русский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Переводная
|
| Журнал |
Protection of Metals and Physical Chemistry of Surfaces
ISSN: 2070-2051
, E-ISSN: 2070-206X
|
| Вых. Данные |
Год: 2019,
Том: 55,
Номер: 6,
Страницы: 1035-1043
Страниц
: 9
DOI:
10.1134/S2070205119060091
|
| Ключевые слова |
granular carbon sorbent, betulin, modification and desorption, compositional structural and textural
parameters, physicochemical analysis |
| Авторы |
Drozdov V.A.
1
,
Pyanova L.G.
1
,
Lavrenov A.V.
1
,
Likholobov V.A.
1
,
Kudrya E.N.
1
,
Luzyanina L.S.
1
|
| Организации |
| 1 |
Institute of Hydrocarbons Processing, Siberian Branch, Russian Academy of Sciences
|
|
Информация о финансировании (1)
|
1
|
Министерство науки и высшего образования Российской Федерации
|
V. 45
|
A method for introducing small amounts of betulin (up to 1 wt %) into a mesoporous carbon material
with a preset specific surface area of 300–310 m2/g, total specific pore volume of 0.35–0.40 cm3/g, and
average pore diameter of 5.2–5.5 nm has been proposed and studied. The betulin content in the solid carbon matrix and in the used organic solvents has been determined by means of a gas chromatography–mass spectrometry technique. By means of scanning electron microscopy together with X-ray microanalysis and IR Fourier spectroscopy, the state of betulin on the outer and inner surfaces of carbon granules of different fractional composition, as well as in thin carbon layers, has been studied. It has been found that the main fraction of betulin is predominantly deposited on the outer surface of the globular particles of a porous carbon material. The properties of betulin impregnated into a carbon sorbent and the process of its dynamic desorption under the conditions simulating the biological environment of the gastrointestinal tract are studied.