Adsorptive Removal of Hexavalent Chromium by Diphenylcarbazide-Grafted Macadamia Nutshell Powder

Figure 2

(a) FTIR spectra of RMN (i), 20 MHP (ii), 35 MHP (iii), and 50 MHP (iv) adsorbents. (b) FTIR spectra of 20 MHPD, 35 MHPD, and 50 MHPD adsorbents.

(a)

(b)