Hi,
I am working with an alcohol solution saturated with LiOH and I need to make precipitate LiOH on the Silica surface, in particular I would get an uniform coating of the nanoparticles that I can not reach using just Silica nanoparticles without any functionalization.
So I think that the Silica nanoparticles functionalization could be helpful for my purpose, because I need to increase the affinity of the nucleating specie (Li+, OH-) toward the Silica nanoparticles surface.
The uniform coating can be obtained if I will be able to increase the nucleation points on the Silica surface instead of the growth of the few LiOH nuclei formed on the Silica surface; since the nucleation points on the Silica surface increase if the affinity between the LiOH and the surface is higher, I guess that by means of the silica nanopartices functionalization I could reach my purpose.
Could you suggest me some papers about the adsorption of Lithium ions and/or OH- on functionalized surfaces? or some paper which could be helpful for my purpose?
Thank you
You have to work in various temperature as an one of your parameters to find optimum conditions that gives you better participation
Dear Mattia,
I think leading your precipitation in strongly acidic conditions may increase the hydrophilicity of your Silica, exposing more amphoteric groups on the surface. This charged groups will certainly be more likely to coordinate your nucleating species.
Otherwise, functionalisation with silanes that expose charged groups (such as APTES) may do the trick. In the latter case the terminal amino group of the APTES can be useful.
Hope it was useful, let me know if you solve the issue.
Sincerely,
Michele
- Badges
- Science topic
- Similar topics
- Chemistry
- Nanotechnology
- Nanostructured Materials
- Nanoparticles