A Physicochemical Study of the Process of Modification of Carbon Sorbents with Lactic Acid Full article
| Journal |
Protection of Metals and Physical Chemistry of Surfaces
ISSN: 2070-2051 , E-ISSN: 2070-206X |
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| Output data | Year: 2019, Volume: 55, Number: 6, Pages: 1050-1054 Pages count : 5 DOI: 10.1134/S207020511906025X | ||||
| Tags | carbon materials, molded sorbent, lactic acid, modification, polycondensation, physicochemical properties | ||||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Ministry of Science and Higher Education of the Russian Federation | V. 45 |
Abstract:
With the aim of creating new adsorbing materials with biospecific properties for applications in
medicine (obstetrics and gynecology), a technique for the chemical modification of a molded carbon sorbent
with lactic acid by polycondensation of the latter on the surface of the former without catalysts is proposed.
The completeness of the process of polycondensation of lactic acid on a molded carbon sorbent was controlled
by physicochemical methods (low-temperature nitrogen absorption and thermal analysis). The
amount of the deposited modifier (lactic acid oligomer) is a determining factor of the completeness of the
modification process, which is determined from the results of thermogravimetric analysis of samples. The
optimal conditions of the impregnation and thermal processing of a molded carbon sorbent, under which the
amount of the deposited modifier reaches the maximum value and equals 7.2–10.5 wt %, have been chosen
on the basis of the results of studies. The elemental composition and the content of surface functional groups
of the two most promising samples of modified molded carbon sorbents are analyzed. These modified samples
are of interest for further analyses and a study of their adsorption properties.
Cite:
P’yanova L.G.
, Drozdetskaya M.S.
, Lavrenov A.V.
A Physicochemical Study of the Process of Modification of Carbon Sorbents with Lactic Acid
Protection of Metals and Physical Chemistry of Surfaces. 2019. Т.55. №6. С.1050-1054. DOI: 10.1134/S207020511906025X WOS Scopus РИНЦ OpenAlex
A Physicochemical Study of the Process of Modification of Carbon Sorbents with Lactic Acid
Protection of Metals and Physical Chemistry of Surfaces. 2019. Т.55. №6. С.1050-1054. DOI: 10.1134/S207020511906025X WOS Scopus РИНЦ OpenAlex
Original:
Пьянова Л.Г.
, Дроздецкая М.С.
, Лавренов А.В.
Физико-химические исследования процесса модифицирования формованного углеродного сорбента молочной кислотой
Физикохимия поверхности и защита материалов. 2019. Т.55. №6. С.588-592. DOI: 10.1134/S0044185619060251 РИНЦ OpenAlex
Физико-химические исследования процесса модифицирования формованного углеродного сорбента молочной кислотой
Физикохимия поверхности и защита материалов. 2019. Т.55. №6. С.588-592. DOI: 10.1134/S0044185619060251 РИНЦ OpenAlex
Dates:
| Submitted: | Mar 12, 2019 |
| Accepted: | Jun 10, 2019 |
| Published print: | Nov 1, 2019 |
| Published online: | Dec 27, 2019 |
Identifiers:
| Web of science: | WOS:000504908200005 |
| Scopus: | 2-s2.0-85077093406 |
| Elibrary: | 43222700 |
| OpenAlex: | W2998580922 |