I want to disperse ZnO nanoparticles in a polymeric matrix. Firstly, they should be dipersed in butanol but because of the great agglumeration between nanoparticles, dispersion cannot take place by normal methods such as ultrasonic. I think this work requires surface modification. Please, help me in this way.
i think you could try by adding drops of oleic acid on the nanoparticles and try to cover the surface of the nanoparticles by ultrasonic method, then you add butanol and try to disperse the nanoparticles again with ultrasonic method.
it may be helpful.
What kind of surface cover (molecular moietis of solvent or other) is on ZnO NPs surface initially? What solvent is initially (before butanol) used?
Dear Natalia,
I just utilized probe sonicator without any surface modification. I want to know if they need surface modification or not.
What did we know about surface of ZnO NPs? I have not experience with ZnO NPs, but any experience with any type of NPs, namely with surface modification of CdSe/ZnS NPs. I think that there are common mechanisms of NPs surface modification before dispersion in liquids.
You have to control the surface modification. It is possible to optimize the modification of ZnO, compare to the Publication.
Article Synthesis and testing of ZnO nanoparticles for photo-initiat...
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