shows the FTIR spectrum of the silica fibers obtained
at 12 kV. It is seen that the peaks at 795, 950, and
1058cm−1 are assigned to Si Ovibration and the broad band near 3390 cm−1 is assigned to O H vibration. It
should be noted that there is no peak of methyl (CH3) or
methylene (CH2) of ethoxy group ( OCH2CH3) in the
FTIR spectrum: typical IR bands ofCH3 orCH2 are several
strong peaks at 2800–3000 and 1400–1800 cm−1
regions.