Synthesis and Characterization of a New Surface-Modified Nanoparticle Using Fluoroalkanoic Acids as a Wettability Alteration Agent

Table 2

FTIR spectra of the unmodified nanosilica.

Functional group	Peak position (cm^-1)	Type of vibration
-OH	3500–3300	Broad and strong intensity absorption of -OH stretching
-OH	1633	Scissor bending vibration of O-H bond
Si-O-Si	1105	Si-O-Si asymmetric stretching vibration
Si-OH	970	Si-OH asymmetric vibration
Si-O-Si	800	Si-O-Si symmetric vibration
Si-O-Si	471	Si-O-Si bending vibration