Figure 4

(a) N2 Adsorption–desorption isotherm of the prepared CoxNi1−xFe2O4; x = 0.9/SiO2/TiO2/C-dots nanocomposite; (b) Pore size distribution.
(a) N2 Adsorption–desorption isotherm of the prepared CoxNi1−xFe2O4; x = 0.9/SiO2/TiO2/C-dots nanocomposite; (b) Pore size distribution.