Sorption Characteristics of Mixed Molecules of Glutaraldehyde from Water on Mesoporous Acid-Amine Modified Low-Cost Activated Carbon: Mechanism, Isotherm, and Kinetics

Table 3

Surface functionalities of activated carbon samples.

AC type	pH	pHPZC	(µmol/g)	(µmol/g)	(/100 nm^2 AC)
A800/1.5	10.3 ± 0.1	10.3	62.50 ± 1.71	944.44 ± 2.48	55-56
Nit-AC	4.51 ± 0.14	4.00	450.00 ± 2.0	233.33 ± 3.05	49-50
EDA-AC	7.02 ± 0.09	7.10	383.33 ± 3.38	400.00 ± 2.36	75–77

: total acidity; : total basicity; : Avogadro number; : total number of surface groups = ( + ) /.