TY - JOUR
T1 - Silver nanoparticle-decorated cellulose beads
T2 - Eco-friendly catalysts for efficient 4-nitrophenol reduction and antibacterial performance
AU - El Allaoui, Brahim
AU - Chakhtouna, Hanane
AU - Ouhssain, Ali
AU - Kadmiri, Issam Meftah
AU - Benzeid, Hanane
AU - Zari, Nadia
AU - Qaiss, Abou el kacem
AU - Bouhfid, Rachid
N1 - Publisher Copyright:
© 2024 Elsevier B.V.
PY - 2024/7
Y1 - 2024/7
N2 - 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.
AB - 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.
KW - Antibacterial activity
KW - Catalytic reduction
KW - Cellulose beads
KW - P-nitrophenol
KW - Silver nanoparticles
KW - Wastewater treatment
UR - http://www.scopus.com/inward/record.url?scp=85197227871&partnerID=8YFLogxK
U2 - 10.1016/j.ijbiomac.2024.133078
DO - 10.1016/j.ijbiomac.2024.133078
M3 - Article
C2 - 38942667
AN - SCOPUS:85197227871
SN - 0141-8130
VL - 273
JO - International Journal of Biological Macromolecules
JF - International Journal of Biological Macromolecules
M1 - 133078
ER -