Synthesis of bimetallic Co–Pt/cellulose nanocomposites for catalytic reduction of p-nitrophenol - Publikacja - MOST Wiedzy

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Synthesis of bimetallic Co–Pt/cellulose nanocomposites for catalytic reduction of p-nitrophenol

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)

  • Zdjęcie użytkownika  Vividha K. Landge

    Vividha K. Landge

    • Department of Chemical Engineering, National Institute of Technology, Warangal, TS, India
  • Zdjęcie użytkownika  Vikas S. Hakke

    Vikas S. Hakke

    • Department of Chemical Engineering, National Institute of Technology, Warangal, TS, India
  • Zdjęcie użytkownika  Manohar Kakunuri

    Manohar Kakunuri

    • Department of Chemical Engineering, National Institute of Technology, Warangal, TS, India
  • Zdjęcie użytkownika  G. Uday B. Babu

    G. Uday B. Babu

    • Department of Chemical Engineering, National Institute of Technology, Warangal, TS, India
  • Zdjęcie użytkownika  Shirish H. Sonawane

    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:
Reaction Chemistry & Engineering
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 -, (2022),
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1039/d1re00422k
Weryfikacja:
Politechnika Gdańska

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