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

Table 1

BET surface characterization.

Adsorbents	Surface characterization		Pore size (nm)
	Pore volume (cm^3/g)	BET surface area (m^2/g)
20 MHP	—	0.0063	—
35 MHP	0.002717	1.0019	10.85013
50 MHP	—	0.5093	—
20 MHPD	—	0.1047	—
35 MHPD	—	0.2034	—
50 MHPD	—	0.0647	—