Thesis (MSc) - Cyprus International University. Institute of Graduate Studies and Research Bioengineering Department

Includes bibliography (sheets 47-65)

ABSTRACT
In this study, a green approach for producing silver nanoparticles is investigated. Due
to their special qualities, such as stability and structural formability, affordability,
accessibility, and use in water treatment, silver nanoparticles made from Schinus molle
extract are of great relevance. To demonstrate the synthesis of AgNPs utilizing
environmentally friendly methods, a UV-visible spectrophotometer was used to
characterize synthesized silver nanoparticles, or AgNPs. The highest UV-Vis
absorbance at wavelength 413 nm (FT-IR) spectra show the functional groups of
phytoconstituents substances in Schinus iiole extract and the S-AgNPs and also
demonstrate the function of active chemical ingredients and the stability and reduction
of S-AgNPs. The generation of spherical S-AgNPs with a particle size range of 20–
100 nm and a particle size of 68 nm was validated based on the SEM image analysis.
S-AgNPs investigated the Cu2+ion adsorption procedure. At 2.5 ppm (initial
concentration), the removal efficiency (R.E.) of Cu2+ was 74.94%. The removal
efficiency (R. E.) declines as the concentration of Cu ions increases. The isotherm
studies observed the Langmuir model as the best-fit model with the adsorption process
investigated to be a physisorption process. This study demonstrates the viability of SAgNPs as biosorbents for the elimination of Cu2+ ions from aqueous environments that
are also affordable, efficient, and environmentally acceptable.
Keywords: Ag Nanoparticles, Aqueous solution, Biosorption, Copper, Schinus Molle