Fig. 2
From: Chitosan@TiO2 composites for the adsorption of copper(II) and antibacterial applications

N2 adsorption-desorption isotherms of the as-synthesized samples (a) with exchange with the ammonia solution and (b) without exchange with the ammonia solution. (c) pore size distribution curves of CS with and without exchange of ammonia solution and (d) pore size distribution curves of the CST composites with and without exchange of ammonia solution