I suppose then you have to make one of them a porous matrix and then immobilize the other within the pores. Chitosan being a polysaccharide can act as the porous matrix. Just derivatize chitosan with moieties that can react with hydroxyl groups of silicon nanoparticles such that when you mix the two under appropriate conditions, the particles will be covalently attached to chitosan. On the other hand, u can start with Silica nanoparticles or something like silica gel, then run a chitosan solution over that. Silica will entrap the former.
just mix the two. Whats a composite? A mixture of two or more components.
Perhaps you should state what properties you intend to obtain from the composite
Thank you Mathew for the answer, I would like make a filter from the two. How can I mix them to form a solid filter?
I suppose then you have to make one of them a porous matrix and then immobilize the other within the pores. Chitosan being a polysaccharide can act as the porous matrix. Just derivatize chitosan with moieties that can react with hydroxyl groups of silicon nanoparticles such that when you mix the two under appropriate conditions, the particles will be covalently attached to chitosan. On the other hand, u can start with Silica nanoparticles or something like silica gel, then run a chitosan solution over that. Silica will entrap the former.
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I made a nanocomposite of the two. First you make a solution of chitosan depending on the concentration you want then prepare a silica solution from the precursor. Finaly mix the two followed stirring. Temperature, time, aging time, drying temperature are the important factors for your final product.
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