Investigation of the Nature of Functional Groups of Graphene Membranes by Means of IR Spectroscopy Full article
| Journal |
Chemistry for Sustainable Development
ISSN: 1817-1818 |
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| Output data | Year: 2020, Volume: 28, Number: 5, Pages: 480-486 Pages count : 7 DOI: 10.15372/csd20202550 | ||||||||||
| Tags | graphene, graphene oxide, rice husks, membrane, IR spectroscopy | ||||||||||
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| Affiliations |
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Funding (1)
| 1 | Federal Agency for Scientific Organizations | 0303-2016-0014 |
Abstract:
Graphene membranes were manufactured for the purpose of developing efficient materials for the membrane technologies of water freshening. Investigation of the nature of their functional groups was carried out by means of IR spectroscopy. Graphene membranes were obtained using two methods: 1) vacuum filtration; 2) immersion precipitation. Graphene materials used in the study were graphene oxide (a commercial sample) and graphene (a laboratory sample obtained by means of stepwise carbonization of rice husks). The data of the FTIR spectra of diffuse reflection (DRIFT) from membranes manufactured using graphene point to the low defect content in its single-layer graphite structure, while membranes based on graphene oxide contain not only graphene layers but also amorphous carbon with sp 3-hybridized atoms and oxygen-containing functional groups (mainly carboxylic and phenolic). The tests of the membranes were carried out with respect to the efficiency of filtration of salt-containing solutions (NaCl, KCl, MgCl2, CaSO4 и MgSO4) and salt removal. Analysis of desalinated solutions by means of atomic absorption flame emission spectrophotometry showed that purification efficiency was 74-80 % for membranes obtained by means of vacuum filtration.
Cite:
Seitzhanova M.A.
, Yashnik S.A.
, Ismagilov Z.R.
, Khairulin S.R.
, Mansurov Z.A.
, Montayeva A.A.
Investigation of the Nature of Functional Groups of Graphene Membranes by Means of IR Spectroscopy
Chemistry for Sustainable Development. 2020. V.28. N5. P.480-486. DOI: 10.15372/csd20202550 WOS РИНЦ OpenAlex
Investigation of the Nature of Functional Groups of Graphene Membranes by Means of IR Spectroscopy
Chemistry for Sustainable Development. 2020. V.28. N5. P.480-486. DOI: 10.15372/csd20202550 WOS РИНЦ OpenAlex
Original:
Сейтжанова М.А.
, Яшник С.А.
, Исмагилов З.Р.
, Хайрулин С.Р.
, Мансуров З.А.
, Монтаева А.А.
Исследование природы функциональных групп графеновых мембран методом ИК-спектроскопии
Химия в интересах устойчивого развития. 2020. Т.28. №5. 494-500 :1-7. DOI: 10.15372/khur2020255RSCI РИНЦ AN OpenAlex
Исследование природы функциональных групп графеновых мембран методом ИК-спектроскопии
Химия в интересах устойчивого развития. 2020. Т.28. №5. 494-500 :1-7. DOI: 10.15372/khur2020255RSCI РИНЦ AN OpenAlex
Dates:
| Submitted: | Feb 21, 2020 |
| Accepted: | Sep 2, 2020 |
Identifiers:
| Web of science: | WOS:000618528100006 |
| Elibrary: | 44663153 |
| OpenAlex: | W4255726841 |