Synthesis of Silver Nanoparticles by Green Process: Formulation and Characterization
Synopsis
This work aims to study the synthesis of silver nanoparticles (AgNPs) by green process using Mentha pulgium L. extract as bioreductor and stabilizer of silver ions. The optimization of operating conditions was investigated and revealed that a maximum volume of the extract and a low concentration of AgNO3 at a medium temperature, allow to increase the yield of AgNPs expressed by a fast change of color. The UV-visible characterization confirmed this result, which a wavelength around 400 nm. Other characterizations (FTIR, zeta potential, TDS and pH-meter) were also undertaken. In addition, a hydrogel based on this AgNPs solution was formulated and characterized by the determination of their rheological and sensorial behaviors, as well as a microbiological assessment; which have shown a good stability and conformity.
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