Gkaliouri, C.M.; Rigopoulos, N.; Chalmpes, N.; Sakavitsi, V.; Gournis, D. Whey Mediated Synthesis of Silver Nanoparticles, and Optimization of Reduction Reaction Conditions. Preprints2024, 2024021470. https://doi.org/10.20944/preprints202402.1470.v1
APA Style
Gkaliouri, C.M., Rigopoulos, N., Chalmpes, N., Sakavitsi, V., & Gournis, D. (2024). Whey Mediated Synthesis of Silver Nanoparticles, and Optimization of Reduction Reaction Conditions. Preprints. https://doi.org/10.20944/preprints202402.1470.v1
Chicago/Turabian Style
Gkaliouri, C.M., Viktoria Sakavitsi and Dimitrios Gournis. 2024 "Whey Mediated Synthesis of Silver Nanoparticles, and Optimization of Reduction Reaction Conditions" Preprints. https://doi.org/10.20944/preprints202402.1470.v1
Abstract
Green synthesis of silver nanoparticles (AgNPs) using raw Whey has never been reported. Silver nanoparticle formation involves a reduction reaction of silver salt solution with Whey extract. Extract and metal salt concentrations, and temperature can control this reaction. In this work, incubation period, extract, AgNO3, and NaOH concentrations were used as the independent factors using central composite design under response surface methodology. The aim was to elucidate the influence these factors have on the measured UV-Vis absorption spectra fitted with a Voigt function, and to optimize the conditions for nanoparticle formation. The fitting parameters, peak wavelength (λ0), peak area (A), and Full Width at Half Maximum (FWHM), were the responses. Silver nanoparticle formation was only possible in an alkaline environment (pH 10). The peak wavelength and the FWHM are influenced mainly by extract and AgNO3 concentrations. In contrast, the peak area is influenced by a total of 33.54 % from the interaction terms of AgNO3 and extract concentrations with NaOH. Metallic AgNPs were formed for the following parameter ranges: a) Whey (0.4 – 1.6 % v/v), b) AgNO3 (0.15 – 0.6 mM), c) NaOH (10 – 50 mM), and d) Time (20 – 60 min). Silver oxide nanoparticles were also observed.
Keywords
silver nanoparticles; green synthesis; reduction; response surface methodology; cheese Whey
Subject
Chemistry and Materials Science, Nanotechnology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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