Before and after oxidation process this peak (2357) remains same however i got for GO, broaden peak at 3386 (-OH), 1711 and 1385 (-COOH) and few other.
Another explanation:
gaseous CO2 usually gives 2 peaks in the region 2400cm-1, but being absorbed for example on the wall of a porous structure, or just being in contact with the solid surface - this doublet - transforms into a single peak with frequency very close to 2360cm-1. In more detail it is described in Marek URBAN book:
Vibrational spectroscopy of molecules and macromolecules on surfaces
Front Cover
Marek W. Urban
Wiley, 1993 - Science - 384 pages
Regards, Leonid
Thank you all for your valuable information. Now I can better understand and interpret this peak.
For CO2 you will find the peak in the reason of 2300 to 2400 and for -COOH you will get about 1700 to 1760.
even iam getting the same peak ... but am using pure graphene.. can someone help me?
Me also get during the ,marine polysaccharide separation, this is toxic or not
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