The Adsorption of 2,4-Dichlorobenzoic Acid on Carbon Nanofibers Produced by Catalytic Pyrolysis of Trichloroethylene and Acetonitrile Full article
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C-Journal of Carbon Research
ISSN: 2311-5629 |
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| Output data | Year: 2023, Volume: 9, Number: 4, Article number : 98, Pages count : 20 DOI: 10.3390/c9040098 | ||||||
| Tags | chlorinated aromatic compounds; adsorption; carbon nanofibers; trichloroethylene; 2,4-dichlorobenzoic acid | ||||||
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| Affiliations |
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Funding (1)
| 1 | Russian Science Foundation | 22-13-00406 |
Abstract:
In this study, carbon nanofibers were synthesized by the catalytic pyrolysis of trichloroethylene (CNF-Cl) and its mixture with acetonitrile (CNF-Cl-N). The addition of acetonitrile resulted in the incorporation of nitrogen in the CNF (0.33 at%), the removal of chlorine, an increase in oxygen-containing functional groups on the surface (from 1.6 to 3.6 at%), and an increase in the volume of mesopores (from 0.35 to 0.41 cm3·g−1) and macropores (from 0.115 to 0.393 cm3·g−1). The study of 2,4-DCBA adsorption on both CNFs revealed that the adsorption capacity showed dependence with a maximum on the 2,4-DCBA concentration in the solution, which was attributed to the electrostatic interactions of adsorbate with adsorbent at various pHs. The adsorption forces were effective over distances greater than the size of the 2,4-DCBA molecule, indicating volume pore filling. The maximum adsorption capacity occurred at 0.7–1.2 mM and a pH of 3.4 ± 0.1. CNF-Cl-N exhibited lower 2,4-DCBA adsorption than CNF-Cl-N due to its lower specific surface area, lower micropore volume, and higher concentration of oxygen-containing groups on the surface. However, these differences were not significant, suggesting that CNFs produced from both chlorine-containing wastes and their mixtures with nitrogen-containing compounds can be effectively used for water treatment to remove 2,4-DCBA.
Cite:
Ozerova A.M.
, Tayban E.S.
, Lipatnikova I.L.
, Potylitsyna A.R.
, Bauman Y.I.
, Prosvirin I.P.
, Shubin Y.V.
, Vedyagin A.A.
, Mishakov I.V.
, Netskina O.V.
The Adsorption of 2,4-Dichlorobenzoic Acid on Carbon Nanofibers Produced by Catalytic Pyrolysis of Trichloroethylene and Acetonitrile
C-Journal of Carbon Research. 2023. V.9. N4. 98 :1-20. DOI: 10.3390/c9040098 WOS Scopus РИНЦ AN OpenAlex
The Adsorption of 2,4-Dichlorobenzoic Acid on Carbon Nanofibers Produced by Catalytic Pyrolysis of Trichloroethylene and Acetonitrile
C-Journal of Carbon Research. 2023. V.9. N4. 98 :1-20. DOI: 10.3390/c9040098 WOS Scopus РИНЦ AN OpenAlex
Dates:
| Submitted: | Jul 14, 2023 |
| Accepted: | Oct 7, 2023 |
| Published online: | Oct 11, 2023 |
| Published print: | Dec 1, 2023 |
Identifiers:
| Web of science: | WOS:001131188700001 |
| Scopus: | 2-s2.0-85180651060 |
| Elibrary: | 63301476 |
| Chemical Abstracts: | 2024:62707 |
| OpenAlex: | W4387519725 |