Browsing by Author "MUHAMMAD AMJAD"

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    SYNTHESIS OF SILVER NANOCOMPOSITES FOR APPLICATIONS IN TEXTILE AND POLYMERS
    (UMT.lahore, 2023) MUHAMMAD AMJAD
    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.