Hi Hamzeh . Have a look at the following article

https://pubs.acs.org/doi/abs/10.1021/ja106091q

Hamzeh Shamsi This is where you need a stabilizer to keep particles apart. As mentioned above pH control (in a buffer) is also important. If your material wets in water then a surfactant is not necessary. Take a look at this webinar:

May 28th, 2019 Dispersion and nanotechnology

https://www.brainshark.com/malvern/vu?pi=zHSznNgprz5chz0

My first attempt would be to sonicate in a 0.05% Calgon solution. Scientifically one could measure the zeta potential of the system. See slides 27 and onwards in the above.

Thank you all and thank you Dr Rawle