I am working on the synthesis of silver nanoparticles, I am getting a peak at 408 nm but it is not a sharp peak and the absorbance is very low at 0.6, after running the reaction for 24 hours. How do I solve this issue? Can I use that for further characterization?
The issue is that you have a wide range size distribution of AgNPs
We have the same issue, when tried to make particles stabilised with Artemisia
Article Antimicrobial Activity of Silver Nanoparticles Stabilized by...
you can play with parameters of preparation and see if it helps avoid aggregation
Arnav Padhi
Compounds present in the extract are usually used as silver ion reducers. These are usually phenolic compounds of complex chemical structure with high molecular weight. They are adsorbed on nanoparticles and stabilize the dispersion. They are also the main reason for the peak at 200-300 nm. In order to obtain a clear peak from plasmon absorption at 400-450 nm, it is necessary to wash the nanoparticles from these molecules with ethanol in a centrifuge.
- Badges
- Science topic
- Similar topics
- Geoscience
- Atmospheric Sciences
- Climate Science
- Climate Change