2.3. Characterization
Fourier transform infrared (FT-IR) was performed on a Perkin Elmer 1600 Infrared Spectrometer. FT-IR spectra of the samples were recorded by using Nicolet’s AVATAR 360 at 32 scans with a resolution of 4cm−1 and within the wave number range of 4000–370 cm−1 . The significant transmit- tance peak at a particular wave numbers was measured by using the “find peak tool” provided by Nicolet OMNIC 5.01 software.