Is it possible to identify the phase of nanomaterials from FTIR spectra?
No. it is not possible from FTIR. Since IR energy is not sufficient to interact with the electron density which tells the phase formation.
FTIR gives the approximate functional group not the phase formation
I'm afraid that the resolution of IR microscopy is not enough for this purpose. It will give composition information averaged over a larger area than the nanophase. You will have to use electron microscopy or other, high resolution techniques, sometimes coupled with diffraction techniques.
It's not easy to identify the phase of nanomaterials from FTIR spectra, but you can use micro-Raman spectroscopy (see my papers 'phases transition of nanoparticles')
I agree with Rohul Adnan, the best option is to use XRD diffraction.
The best way is to use XRD and TEM analysis. But in some special system, e.g. the syntheses and growth of CaCO3, one can use FTIR to to determine the phase of CaCO3 (calcite or amorphous CaCO3)
No. It is not possible to study phase formation. You wants to use XRD with lattice parameter and particle size caluculation.
I mean it is available just in some special system. FTIR usually help to check the different phases of CaCO3. An example please see what is described in Journal of Crystal Growth 254 (2003) 206–218.
Obviously, the XRD technique is the best method to identifiy crystalline phases in many mateirals. But, the FTIR can help sometimes. At least, from TiO2, the anatase and rutile species can be detected by this technique.
Of course, FTIR can identify both amorphouse and crsstalline phases, for example, amorphous calcium carbonate, calcite, aragonite, and vaterite.
Dear Prakashbabu,please check your mailbox for the copy. Have a nice day.
Dear Prakashbabu,
What kind of nanomaterials for FTIR characterization are you interested in?
Cheers
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