You must have some coating on your NPs. So, you have to read two types of articles, one is you coating related and other is your nanoparticles related. e.g., suppose i have Tarminalia arjuna bark extract coated Magnetite nanoparticles (https://doi.org/10.1016/j.chemosphere.2021.132673), hence I should download and read the previous articles related to (1) Tarminalia arjuna (TA) bark extract (aquas part only), (2) TA bark extract (aq) coated other nanoparticles and (3) Magnetite nanoparticles related other articles.
(1) and (2) are to understand the group present and the shifting of the corresponding stretching frequencies due to the coating with nanoparticle coar. And, (3) is to understand the shifting of stretching frequencies of Nanoparticles e.g. in my case Fe-O stretching frequency. Wish you best of luck
try to find the characteristic band in your IR spectrum, as you design the material, you should know the probable functional group in your material. FTIR data will give you concise info about the functional group present in the material.
It strictly depends on the substrate spectral characteristics of your thin film. It is necesasary to prepare such samples with thin films wich are deposited on substrate the chemical components of which doesn't contain the chemical elements that you going to investigate. Because, for example, if you check the oxygen in silicon film, it is recommended to deposite thin film on crystalline silicon wafer but not silicon dioxide. Because the silicon wafer doesn't contain silicon oxide bonds.
FTIR basically used to identify the functional group in your sample. As you know your starting material having some functional group and after coating it change or not. If your coating material intract with functional group of nanoparticle then you may find some specific peak for new functional group. For example -OH group may react with acid chloride to give ester linkage. For this new ester linkage you may get new peaks which is not observed in your starting. material. So, analyse both starting and final product and compare it. And of course take reference for particular peak.
Dear Ashu Devraj
You can Use OMNIC software for analysis of FTIR data. Hopefully it help you alot.
Regards
Analyzing FTIR data of newly synthesized nanoparticles involves several steps, including baseline correction, peak identification, peak assignment, quantitative analysis, and interpretation. By following these steps, one can obtain valuable information on the chemical composition and functional groups present in the nanoparticles, which can be used to optimize their properties and applications.
At UniTechLink Inc we help researchers with the analysis of their results. Please check: unitechlink .com/analyst
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