^aDepartment of Chemistry, College of Science, Imam Mohammad Ibn Saud

Islamic University (IMSIU), P.O.Box 90950, Riyadh 11623, Saudi Arabia

^bDepartment of Physics, College of Science, Imam Mohammad Ibn Saud Islamic

University (IMSIU), P.O.Box 90950, Riyadh 11623, Saudi Arabia

c The Hashemite University, Prince Al Hassan bin Talal College for Natural

Resources and the Environment, Department of Earth and Environmental

Sciences

Silver nanoparticles have a wide range of anti-bacterial, anti-fungal, and anti-viral effects due to their unique properties. In this work, citrate reduction has been employed to fabricate silver colloidal nanoparticles with 12 nm. The plasmon resonance spectra of nanoscopic silver particles adsorbed onto transparent electrodes in contact with various electrolyte solutions and concentrations of NaC1O4, KPF6, and NaCl were studied.

Potentials were controlled with a galvanostat, and UV/visible spectrophotometer was employed to obtain the optical spectra. The results showed the electrolyte identity, potential-induced redshifts, and damping is most pronounced for NaCl, whereas spectral changes are weaker in the cases of NaC1O4 and KPF6 solutions. Hence, due to the noble physical and biological properties of silver colloid nanoparticles, it becomes a great candidate and promising in the future to be used as an anti-coronavirus surface.