Characterization and Potential of Samanea saman-Activated Carbon on Adsorption of Copper from an Aqueous Solution

Table 2

Chemical bonding in Samanea saman material.

Bond	Peak wave absorption (cm^-1)
	SS powder		SSAC		SSAC impregnated
	(cm^-1)		(cm^-1)		(cm^-1)
O-H	3277.60	0.0807	—	—	—	—
C-H	2921.81	0.0597	2973.22	0.0343	2973.0	0.032
C=O	1614.36	0.0648	—	—	—	—
C=C	1404.94	0.0273	—	—	—	—
C-O-C	—	—	1054.85	0.0608	1054.87	0.0255
C-O	1032.76	0.1529	1033.24	0.0620	1033.26	0.0240
C-O-SO3	865.05	0.0853	—	—	—	—
C-H2	776.52	0.0945	—	—	—	—

Adsorption ().