Adsorption Study for the Removal of Nitrate from Water Using Local Clay

Table 2

Infrared analysis results of different vibration bands.

Adsorbent	Vibration bands (cm^-1)	Assignment
Adsorbent A1	3606	Vibration of the hydroxyl group
	3397-1636	Axial and angular deformation of water molecules
	1442	Vibration stretch of CO3
	909	Deformation of Al-OH
	797	Vibration stretch of Si-O
	692	Deformation of Si-O-Al
	508	Vibration of links Si-O-Si