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Ultrasound-assisted wet-impregnation of Ag–Co nanoparticles on cellulose nanofibers: Enhanced catalytic hydrogenation of 4-nitrophenol
Abstrakt
In this study, a novel nanocomposite of bimetallic Ag–Co nanoparticles supported on cellulose nanofibers (CNFs) was synthesised using the ultrasound-assisted wet-impregnation method for catalytic applications. CNFs were prepared from cellulose acetate using the electrospinning technique. Fourier transform infrared spectroscopy (FTIR) analysis confirmed the successful synthesis of CNFs. Further, scanning electron microscopy (SEM) with energy dispersive X-ray analysis (EDX) revealed a uniform dispersion of Ag and Co metals on the CNFs. At the same time, X-Ray diffraction (XRD) spectra indicated the highly crystalline nature of the as-produced composite. The hydrogenation of 4-nitrophenol (4-NP) was used to study the efficiency of the synthesised nanocomposite. The progress of the reaction was examined via UV–visible spectroscopy. It was noted that Ag-Co nanoparticles supported on CNFs catalysed the hydrogenation of 4-NP (0.1 mM) to 4-aminophenol within just 110 s with an apparent rate constant of 0.0172 s−1. This study proved that the obtained catalysts have superior stability and reusability with about 100% conversion up to 5 cycles. The excellent activity of the as-synthesised Ag-Co/CNFs nanocomposites makes it a promising nanocatalyst for catalytic applications.
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Autorzy (5)
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Vividha K. Landge
- Department of Chemical Engineering, National Institute of Technology, Warangal, Telangana 506004, India
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Shirish H. Sonawane
- Department of Chemical Engineering, National Institute of Technology, Warangal, Telangana 506004, India
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Sivakumar Manickam
- Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Bandar Seri Begawan BE1410, Brunei Darussalam
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G.Uday Bhaskar Babu
- Department of Chemical Engineering, National Institute of Technology, Warangal, Telangana 506004, India
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Informacje szczegółowe
- Kategoria:
- Publikacja w czasopiśmie
- Typ:
- artykuły w czasopismach
- Opublikowano w:
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Journal of Environmental Chemical Engineering
nr 9,
ISSN: 2213-2929 - Język:
- angielski
- Rok wydania:
- 2021
- Opis bibliograficzny:
- Landge V. K., Sonawane S. H., Manickam S., Bhaskar Babu G., Boczkaj G.: Ultrasound-assisted wet-impregnation of Ag–Co nanoparticles on cellulose nanofibers: Enhanced catalytic hydrogenation of 4-nitrophenol// Journal of Environmental Chemical Engineering -Vol. 9,iss. 4 (2021), s.105719-
- DOI:
- Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1016/j.jece.2021.105719
- Weryfikacja:
- Politechnika Gdańska
wyświetlono 139 razy
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