Evaluation of Agrowaste Species for Removal of Heavy Metals from Synthetic Wastewater

Figure 4

(a–e) The FT-IR spectrum of all adsorbents: (a) lupines, (b) moringa leaves, (c) moringa seed, (d) sugarcane straw, and (e) tea.

(a)

(b)

(c)

(d)

(e)