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. 2021 Nov 24;7(11):e08459. doi: 10.1016/j.heliyon.2021.e08459

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© 2021 The Author(s)

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

PMC Copyright notice

(a)UV–Vis absorption spectra of AgNPs synthesized by HAPLE at different AgNO₃ concentration. (b) UV-Vis absorption spectra of AgNPs synthesized by varying volume ratio of AgNO₃ solution to HAPLE by keeping constant the concentration & volume of AgNO₃ solution. (c) UV-Vis absorption spectra of temperature optimization for the synthesis of AgNPs from HAPLE. (d) UV-Vis absorption spectra of reaction time optimization for the synthesis of AgNPs from HAPLE. (e) UV-Vis spectra of pH optimization for the green synthesis of AgNPs from HAPLE.