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Abstrakt
In this study, bimetallic nanoparticles (NPs) of Co–Pt anchored on cellulose nanofibers (CNFs) for catalytic applications were synthesized via a sonochemical approach. The electro-spinning technique was employed for the synthesis of CNFs from cellulose acetate. The thorough characterization of synthesised Co–Pt/CNF nanocomposites was performed with the help of scanning electron microscopy (SEM), Fourier transform infra-red (FT-IR) spectroscopy, field emission scanning electron microscopy (FESEM) with energy dispersive X-ray analysis (EDX), and X-ray diffraction (XRD). This method leads to the facile preparation of Co–Pt bimetallic NPs using cellulose as a support. The synthesized nanocomposites were used for the p-nitrophenol (p-NP) reduction to p-aminophenol (p-AP) with excess sodium borohydride (NaBH4) to assess their catalytic performance. The effects of various parameters on the performance of the catalyst were also investigated. The investigated parameters are catalyst loading, initial p-NP concentration and NaBH4 concentration. The extent of p-NP reduction into p-AP over Co–Pt/CNF nanocomposites with an excess of NaBH4 was examined with UV-vis spectroscopy. The p-NP reduction to p-AP over Co–Pt NPs anchored on CNFs was achieved within 98 seconds with around 100% conversion. The efficiency of the catalyst did not vary significantly up to 5 consecutive cycles. The excellent catalytic activity (Kapp = 0.028 s−1) and stability of the as-synthesized Co–Pt nanoparticles supported on CNFs make them potential catalysts for nitrophenol reduction and wastewater treatment.
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Autorzy (6)
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Vividha K. Landge
- Department of Chemical Engineering, National Institute of Technology, Warangal, TS, India
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Vikas S. Hakke
- Department of Chemical Engineering, National Institute of Technology, Warangal, TS, India
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Manohar Kakunuri
- Department of Chemical Engineering, National Institute of Technology, Warangal, TS, India
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G. Uday B. Babu
- Department of Chemical Engineering, National Institute of Technology, Warangal, TS, India
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Shirish H. Sonawane
- Department of Chemical Engineering, National Institute of Technology, Warangal, TS, India
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Informacje szczegółowe
- Kategoria:
- Publikacja w czasopiśmie
- Typ:
- artykuły w czasopismach
- Opublikowano w:
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Reaction Chemistry & Engineering
nr 7,
strony 641 - 652,
ISSN: 2058-9883 - Język:
- angielski
- Rok wydania:
- 2022
- Opis bibliograficzny:
- Landge V. K., Hakke V. S., Kakunuri M., Babu G. U. B., Boczkaj G., Sonawane S. H.: Synthesis of bimetallic Co–Pt/cellulose nanocomposites for catalytic reduction of p-nitrophenol// Reaction Chemistry & Engineering -Vol. 7,iss. 3 (2022), s.641-652
- DOI:
- Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1039/d1re00422k
- Źródła finansowania:
-
- Publikacja bezkosztowa
- Weryfikacja:
- Politechnika Gdańska
wyświetlono 107 razy
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