Using Modified Fly Ash for Removal of Heavy Metal Ions from Aqueous Solution

Table 1

Position of main peaks in FTIR spectra of FA0, FAN, and modified FAN particles.

Sample	Characteristic absorptions (cm^−1)
	δSi-O-Si	δAl-O-Al	νsym Si-O-Si	νasym Si-O-Si	δOH	νSH	νOH
FA0	461	557	793	1070	1636	—	3452
FAN	457	555	793	1057	1642	—	3451
FASDS	453	556	795	1036	1637	—	3452
FAMBT	454	553	790	1037	1642	2927, 2857	3455