This is the spectra of GO. The peaks are somewhat shifted from where it should have been. There were impurities in my sample but could anyone help me interpret the trough points for whatever my spectra is. My -OH group appeared in 2914.44 in x-axis. But I couldn't do for other functional groups. I found interpretation on Internet for different projects but as my peaks seems to be shifted,I am confused.Could anyone help me please?
this spectrum looks weird. peaks in GO can be slightly shifted. also, peaks are often attributed wrong in literature.
In Short:
3500-3000 - physisorbed water, hydrogend bonds
~1730 - carbonyls
~1630 - OH-deformation
~1580 - C=C aromatic vibrations
~1225 and 1183 stretching of sulfate that overlap with vibrations of epoxy groups.
1630 and 1580 often overlapp and look like a single signal
have you impurities with alkyl-CH vibrations? 2900 are C-H vibration, 3100 are aromatic C-H vibrations.
this spectrum looks weird. peaks in GO can be slightly shifted. also, peaks are often attributed wrong in literature.
In Short:
3500-3000 - physisorbed water, hydrogend bonds
~1730 - carbonyls
~1630 - OH-deformation
~1580 - C=C aromatic vibrations
~1225 and 1183 stretching of sulfate that overlap with vibrations of epoxy groups.
1630 and 1580 often overlapp and look like a single signal
have you impurities with alkyl-CH vibrations? 2900 are C-H vibration, 3100 are aromatic C-H vibrations.
I don't know. I thought it was for -OH. This spectrum is really weird. My graphite powder had silicate impurities. We couldn't remove it. So may be that's the reason. I have no peak for>3000.
So that means there is no any way that my sample could be characterized? Is this sample not working at all?
you have a "single" vibration for C=O/C=C/OH .... and epoxides/sulfates.
this spectrum is really not useful.
what literature/protocoll do you use to prepare GO and how do you prepare the samples for FTIR ?
I used hummer's method to prepare GO and after purification it was dried and the powder form was obtained. I didn't do the FTIR test. One of the professors in my college did it.
The FTIR spectrum looks like it was collected using a diamond window (either in ATR mode or using a diamond compression cell and the background was not collected properly.
Please have a look in this website for more detail description of your bonds on surface,
http://www2.ups.edu/faculty/hanson/Spectroscopy/IR/IRfrequencies.html
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