In my work, I get an absorbance peak at 420 nm for silver NPs on the UV-Vis scattering graph. Can I calculate their size directly without using electron microscopy or XRD?
Please find attached some papers:
http://50.87.149.212/sites/default/files/nanoComposix%20Guidelines%20for%20UV-vis%20Analysis.pdf
http://www.formatex.org/microscopy3/pdf/pp576-583.pdf
http://pubs.rsc.org/en/content/articlehtml/2014/ra/c3ra44507k
Take a look at [1].
[2] & [3] highlight calulcations for gold nanoparticles:
...[4] may be more usful: see Table 1, diameter = 50 nm for max absorption = 420.9nm.
[1] The Optical Properties of Metal Nanoparticles: The Influence of Size, Shape, and Dielectric Environment, J. Phys. Chem. B, 2003, 107 (3), pp 668–677
[2] Determination of size and concentration of gold nanoparticles from UV− Vis spectra, Anal. Chem., 2007, 79 (11), pp 4215–4221
[3] Determination of Size and Concentration of Gold Nanoparticles from Extinction Spectra, Anal. Chem., 2008, 80 (17), pp 6620–6625
[4] A rapid method to estimate the concentration of citrate capped silver nanoparticles from UV-visible light spectra, Analyst, 2014,139, 4855-4861
Article Determination of Size and Concentration of Gold Nanoparticle...
Article Determination of Size and Concentration of Gold Nanoparticle...
Article The Optical Properties of Metal Nanoparticles: The Influence...
Article Rapid method to estimate the concentration of citrate capped...
https://www.researchgate.net/deref/http%3A%2F%2Fpubs.rsc.org%2Fen%2Fcontent%2Farticlehtml%2F2014%2Fra%2Fc3ra44507k
Dear Gyorgy Banhegyi , John Clarkson, Massar Saieb Kadhim
Thank you very much for the helpful researches..
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