I am trying to synthesize nano powders of Silca and titania. I am using TEOS and TTIP as a source of matrial and NH4OH as catalyst.
after getting the Gel, it is being dried at 100 degree Celsius and then after they are subjected to calcination. After following these processes I am getting agglomerated nano particles,rather than getting dispersed.
Please suggest me suitable parameter for getting dispersed nanoparticles.
Alan F Rawle
Jai Ml You can't unless you keep your nanoparticles in stabilized wet form. Drying is and calcination cause irreversible aggregation. See this webinar:
Dispersion and nanotechnology
https://www.brainshark.com/malvern/vu?pi=zHSznNgprz5chz0
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Alan F Rawle
Luma M. Ahmed Drying and calcination causes the aggregation and agglomeration.
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