The graph shows ZnO nanoparticles (TF) ZnO nanorods (NR) and its conjugate with other biomaterials respectively. Both graph contains the same data set one is against wavelength and other is against energy.
Hi,
in my case I used UV to see if there is only the presence of nanoparticles. Because there is a wavelength where you can recognized this. Probably somebody publish that at certain wavelength there is a specific size or form. So probably you have to use TEM to complement your results of UV and see the structure of nanoparticles.
This is and example
http://www.formatex.org/microscopy3/pdf/pp576-583.pdf
I hope that this can help you.
Your question require details. See if this helps otherwise, tell me the specifications of your ZnO NPs and the ZnO NRs.
1) Did you purchase the ZnO NPs and the ZnO NRs?
2) If so, did the manufacturer have the characterization data? If yes, request a copy of the UV and the TEM data.
3) If you synthesized them yourself, you need to get a standard from a commercial source that have the specification sheets and characterization data. You need to run the UV of the standard ZnO NPs and the ZnO NRs in your machine and compare this with the results from the manufacturer. If there are discrepancies, take note of those.
4) Run your own NPs and NRs and then compare the results with those you got for the standrads and analyze the similarities and the differences.
@ Zoraida Aguilar : I prepared this in my lab and the question is simple that if someone has such data for absorbance then the green curve which represents for ZnO TF (thin film) at 300 nm does not show any peak while just a simple curve while other sample shows shoulders hump at required wavelength " how we could deal with such graph"
Brad Miller thank you it is really good suggestion from you i will look into this.
Are the concentrations between your samples the same? If not, the peak at 300 nm may not be visible at lower concentration on ZnO deposited as thin films.
Yes some researcher has said me like this....and this could be the reason for not having peak in TF structure. ...Thanks Z.Aguilar
You can try FTIR or PM-FTIR if the surface where the ZnO is deposited is conductive. Make sure that the samples used are of the same concentration. This paper on the web describes the IR of ZnO powders.
www-brs.ub.ruhr-uni-bochum.de/netahtml/HSS/.../Zusammenfassung.pdf
@ Z. Aguilar Thanks for this manuscript. I had gone through this conclusion it is very well explained with good reason but it is devoid of references and if it is published work please send DOI.
My work is mainly on the thin film coating and in the above graph concentration of all the sample were same.
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