Plant-Mediated Green Synthesis of Ag NPs and Their Possible Applications: A Critical Review

Figure 2

(a) Time-dependent absorption spectra of the reaction mixtures consisting of AgNO₃ and Piper chaba extract at 60°C and pH = 7 [59] (open access and reprinted under CC BY 4.0). (b) pH-dependent absorption spectra of the reaction mixtures of AgNO3 and Piper chaba extract after the reaction for 1 h at 60°C [59] (open access and reprinted under CC BY 4.0).

(a)

(b)