Dual Role of a Ricinoleic Acid Derivative in the Aqueous Synthesis of Silver Nanoparticles

Figure 4

UV-Vis spectra of AgNPs produced with (a) 1.0 mM SEAR and (b) 10.0 mM SEAR in contact with raw sewage. (c) Absorbance recorded at 408 nm as a function of time for AgNPs.

(a)

(b)

(c)