User:Anneliese Faustino/Notebook/671 Nanoparticles/2016/10/04

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UV-Vis Silver NP Preparation

Solutions were prepared as follows:

SILVER NANOPARTICLES PART 1 HERE OMG 161004.PNG

Results

0Fructose October 4th A530.PNG

The above chart shows the UV-Vis spectra for [Fructose]=0 mM, [Ag]=0.25 mM. Nanoparticles were only formed for pH 4, 11, and 12. All other pH solutions formed a cream colored precipitate, and did not appear to form nanoparticles from the spectra.

0.0625Fructose October4thspectrum.PNG

The above chart shows the UV-Vis spectra for [Fructose]=0.0625 mM, [Ag]=0.25 mM. As with 0 mM fructose, nanoparticles were only formed for pH 4, 11, and 12. All other pH solutions formed a cream colored precipitate, and did not appear to form nanoparticles from the spectra.

A530 0 fructose redo redo ok.PNG

The absorbance at 530 nm is shown above for [Fructose]=0 mM, [Ag]=0.25 mM. As expected, solutions that did not form nanoparticles have an absorbance of ~0.

0.0625Fructose October4thA530.PNG

The absorbance at 530 nm is shown above for [Fructose]=0.0625 mM, [Ag]=0.25 mM. As expected, solutions that did not form nanoparticles have an absorbance of ~0.