yes because they are non-soluble. However, zinc oxide can transform to hydroxide

Thanks. how can I make them a homogeneous solution?

Stable

Generally, they are heterogeneous system and con not

dissolve in any solution

how much time it takes to collapse? I mean agglomeration of particles.

I want a solution or suspension or colloid (base fluid is brine)containing these nano composites and I need them to be stable during my experiments.

Mohammad Reza Toosi

Waqas Hassan Tanveer

Everything depends on a variety of the parameters, at least on the size of the particles and their charge. They can sediment due to high density, and if they are not charged - for sure they will aggregate.

You must measure zeta potential for your system. Based on the results, the average particle size in the solution is estimated so the type of mixture (stable colloidal, unstable, suspension,...) will be determined based on the value of zeta potential.