K₂CO₃-Activated Pomelo Peels as a High-Performance Adsorbent for Removal of Cu(II): Preparation, Characterization, and Adsorption Studies

Table 2

Textural characteristics of PACs.

Material	Surface area	Vmicro	Vtotal	Vmicro/Vtotal (%)
Pomelo peel	2.15	—	0.0019	—
PAC750-1-2	771	0.16	0.33	48.5
PAC800-1-2	885	0.25	0.36	69.4
PAC850-1-2	1006	0.31	0.43	72.1
PAC900-1-2	896	0.23	0.37	62.2
PAC850-0.5-2	853	0.25	0.35	71.4
PAC850-1-2	1006	0.31	0.43	72.1
PAC850-2-2	1039	0.32	0.46	69.6
PAC850-3-2	872	0.22	0.36	61.1
PAC850-1-1	819	0.22	0.35	62.9
PAC850-1-2	1006	0.31	0.43	72.1
PAC850-1-3	1213	0.42	0.57	73.7