Fig. 5
From: Chitosan@TiO2 composites for the adsorption of copper(II) and antibacterial applications
Fitting curves of the Freundlich isotherm models for the adsorption of copper ions in aqueous solution on (a) 3%CS-V, (b) 3%CS-X, (c) 3%CST-V, (d) 3%CST-X, (e) 5%CS-V, (f) 5%CS-X, (g) 5%CST-V, (h) 5%CST-X, (i) 7%CS-V, (j) 7%CS-X, (k) 7%CST-V, and (l) 7%CST-X; error bars represent standard deviations of triplicate runs (n = 3)