Silver nanoparticle-decorated cellulose beads: Eco-friendly catalysts for efficient 4-nitrophenol reduction and antibacterial performance

Brahim El Allaoui, Hanane Chakhtouna, Ali Ouhssain, Issam Meftah Kadmiri, Hanane Benzeid, Nadia Zari, Abou el kacem Qaiss, Rachid Bouhfid

Research output: Journal PublicationArticlepeer-review

19 Citations (Scopus)

Abstract

This study presents an innovative and environmentally friendly method to produce fibrous cellulose beads by mechanically stirring natural fibers in an aqueous medium. Date palm fibers are transformed into uniform beads with a diameter of 1.5 to 2 mm through chemical treatment and mechanical agitation. These beads are then decorated with silver nanoparticles (Ag0 NPs) in a one-step synthesis, giving them catalytic capabilities for the reduction of 4-nitrophenol (4-NP) and antibacterial activities. Characterization techniques such as FTIR, XRD, SEM, EDX, and TGA confirmed the successful synthesis and deposition of Ag0 NPs on the cellulose beads. Tests showed complete conversion of 4-NP to 4-AP in just 7 min, with pseudo-first-order kinetics and a Kapp of 0.590 min-1. Additionally, Ag0@CB demonstrated exceptional recyclability and stability over five cycles, with minimal silver release. The beads also showed strong antibacterial activity against Escherichia coli and Staphylococcus aureus, effectively eradicating bacterial colonies in 30 min. In summary, Ag0@CB exhibits multifunctional capabilities for degrading organic pollutants and biomedical applications, offering promising potential for large-scale production and practical use in water treatment and antibacterial coatings.

Original languageEnglish
Article number133078
JournalInternational Journal of Biological Macromolecules
Volume273
DOIs
Publication statusPublished - Jul 2024
Externally publishedYes

Keywords

  • Antibacterial activity
  • Catalytic reduction
  • Cellulose beads
  • P-nitrophenol
  • Silver nanoparticles
  • Wastewater treatment

ASJC Scopus subject areas

  • Structural Biology
  • Biochemistry
  • Molecular Biology

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