SYNTHESIS OF SILVER NANOCOMPOSITES FOR APPLICATIONS IN TEXTILE AND POLYMERS
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Date
2023
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Publisher
UMT.lahore
Abstract
The main issues confronting the researchers are the removal of hazardous organic dyes
from industrial effluents and bacterial diseases. Silver nanoparticles (AgNPs) and its
derivatives efficiently inhibit the growth of a variety of bacteria. In the present study,
firstly AgNPs were prepared using vegetable waste extract (VWE) as a reducing agent.
The fabricated nanoparticles (NPs) were characterized by UV-Visible spectroscopy,
Fourier-transform infrared spectroscopy (FTIR), Scanning electron microscope (SEM),
and Energy-dispersive X-ray (EDX) spectroscopy. The synthesized particles exhibited
efficient antibacterial properties (by inhibiting cellular respiration, disrupting the bacterial
cell membrane and inducing oxidative stress) against poultry bacteria Salmonella
gallinarum and Salmonella enteritidis (growth reduction of 31 mm and 18 mm at 80
mg/mL AgNPs). The results depicted that VWE-AgNPs inhibited the growth of tested
bacterial strains and it had the potential to act as a green photocatalyst for the degradation
of 87.7% of methylene blue (MB) and 90.76% of methyl orange (MO) nearly at 3.25 h
and 1 h sunlight exposure time, respectively. In VWE-AgNPs, the highest antifungal
activity was determined to be 36.5 mm and 31.8 mm against Alternata sp. and C.
albicans.