Synthesis of Chlorine- and Nitrogen-Containing Carbon Nanofibers for Water Purification from Chloroaromatic Compounds | Sciact - CRIS-система Института катализа

Synthesis of Chlorine- and Nitrogen-Containing Carbon Nanofibers for Water Purification from Chloroaromatic Compounds Научная публикация

Журнал

Materials
ISSN: 1996-1944

Вых. Данные

Год: 2022, Том: 15, Номер: 23, Номер статьи : 8414, Страниц : 19 DOI: 10.3390/ma15238414

Ключевые слова

chloroaromatics; adsorption; hydrodechlorination; N-containing carbon nanofibers; trichloroethylene; nickel catalyst

Авторы

Ozerova Anna M. ¹ , Potylitsyna Arina R. ^1,2 , Bauman Yury I. ¹ , Tayban Elena S. ¹ , Lipatnikova Inna L. ¹ , Nartova Anna V. ¹ , Vedyagin Aleksey A. ¹ , Mishakov Ilya V. ¹ , Shubin Yury V. ³ , Netskina Olga V. ^1,2

Организации

1	Boreskov Institute of Catalysis SB RAS, Lavrentieva Av. 5, 630090 Novosibirsk, Russia
2	Department of Natural Sciences, Novosibirsk State University, Pirogova Str. 2, 630090 Novosibirsk, Russia
3	Nikolaev Institute of Inorganic Chemistry SB RAS, Lavrentieva Av. 3, 630090 Novosibirsk, Russia

Информация о финансировании (1)

Российский научный фонд

22-13-00406

Chlorine- and nitrogen-containing carbon nanofibers (CNFs) were obtained by combined catalytic pyrolysis of trichloroethylene (C2HCl3) and acetonitrile (CH3CN). Their efficiency in the adsorption of 1,2-dichlorobenzene (1,2-DCB) from water has been studied. The synthesis of CNFs was carried out over self-dispersing nickel catalyst at 600 °C. The produced CNFs possess a well-defined segmented structure, high specific surface area (~300 m2/g) and high porosity (0.5–0.7 cm3/g). The addition of CH3CN into the reaction mixture allows the introduction of nitrogen into the CNF structure and increases the volume of mesopores. As a result, the capacity of CNF towards adsorption of 1,2-DCB from its aqueous solution increased from 0.41 to 0.57 cm3/g. Regardless of the presence of N, the CNF samples exhibited a degree of 1,2-DCB adsorption from water–organic emulsion exceeding 90%. The adsorption process was shown to be well described by the Dubinin–Astakhov equation. The regeneration of the used CNF adsorbent through liquid-phase hydrodechlorination was also investigated. For this purpose, Pd nanoparticles (1.5 wt%) were deposited on the CNF surface to form the adsorbent with catalytic function. The presence of palladium was found to have a slight effect on the adsorption capacity of CNF. Further regeneration of the adsorbent-catalyst via hydrodechlorination of adsorbed 1,2-DCB was completed within 1 h with 100% conversion. The repeated use of regenerated adsorbent-catalysts for purification of solutions after the first cycle of adsorption ensures almost complete removal of 1,2-DCB.

Ozerova A.M. , Potylitsyna A.R. , Bauman Y.I. , Tayban E.S. , Lipatnikova I.L. , Nartova A.V. , Vedyagin A.A. , Mishakov I.V. , Shubin Y.V. , Netskina O.V.
Synthesis of Chlorine- and Nitrogen-Containing Carbon Nanofibers for Water Purification from Chloroaromatic Compounds
Materials. 2022. V.15. N23. 8414 :1-19. DOI: 10.3390/ma15238414 WOS Scopus РИНЦ CAPlus PMID OpenAlex

Поступила в редакцию:	7 нояб. 2022 г.
Принята к публикации:	22 нояб. 2022 г.
Опубликована online:	25 нояб. 2022 г.
Опубликована в печати:	1 дек. 2022 г.

Web of science:	WOS:000897310000001
Scopus:	2-s2.0-85143765442
РИНЦ:	50398772
Chemical Abstracts:	2022:3091790
PMID (PubMed):	36499909
OpenAlex:	W4310057052

БД	Цитирований
Scopus	5
Web of science	4
РИНЦ	9
OpenAlex	5