Abstract
Lasienthra africanum (LA) leaf extract was employed for nano-silver synthesis. The reducing effect of the plant extract was investigated at different times, pH, temperatures and concentrations. The effect of various kinetic parameters was studied using UV–vis spectroscopy. Blue-shifted surface plasmon bands indicating smaller sized nanoparticles were obtained at neutral pH (6.8–7.0), temperature of 65°C and concentration ratio of 1:10 (leaf extract: AgNO3) with increasing reaction times under the reaction conditions. The kinetics of the reaction followed pseudo-first- and -second-order rate equations, and was thermodynamically favoured at higher time. Spherically shaped nanoparticles were obtained at different reaction conditions.
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ELEMIKE, E.E., ONWUDIWE, D.C., ARIJEH, O. et al. Plant-mediated biosynthesis of silver nanoparticles by leaf extracts of Lasienthra africanum and a study of the influence of kinetic parameters. Bull Mater Sci 40, 129–137 (2017). https://doi.org/10.1007/s12034-017-1362-8
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DOI: https://doi.org/10.1007/s12034-017-1362-8