Biosynthesis of Iron Nanoparticles Using Tie Guanyin Tea Extract for Degradation of Bromothymol Blue

Figure 5

The UV-Vis spectra of bromothymol blue over time with different concentration of GZVINPs, (a) 0.06 mM, (b) 0.33 mM, (c) 0.5 mM, and (d), and the degradation of bromothymol blue.

(a)

(b)

(c)

(d)