The texture characteristics of the CMK-3 samples were determined by using a small angle X-ray scattering analyzer (SAXS, Rigaku D/MAX-2500) and a transmission electron microscope (HRTEM, JEOL, JEM-2010 type). The element contents of the CMK-3 before and after modification were determined by an X-ray photoelectron spectrometer (Kratos Axis Ultra DLD). A 1808 hemispherical sector electron energy analyzer with a 165 mm mean radius with MCP stack and delay-line detector was operated with an achromatic Mg/Al X-ray source at 450 W. The binding energy scale was calibrated to 284.6 eV for the main C1s peak. The full width at half maximum of each deconvoluted C1s spectrum was 0.68 eV. The high-resolution scans were performed over the 280–294 ranges for C1s spectrum. Curve fitting was performed using a non-linear least-squares algorithm and assuming a mixed Gaussian/Lorentzian peak shape of variable proportion. The porous texture of the prepared CMK-3 samples was characterized by conducting nitrogen adsorption isotherms at 77 K using a gas adsorption apparatus (Quantachrome Autosorb-1). Specific surface area (SBET) was calculated using the BET equation at relative pressure between 0.005 and 0.3. The total pore volume was calculated from the amount of nitrogen adsorbed at relative pressure of 0.95. The micropore volume was determined by the Dubinin–Radushkevich (D–R) equation. The pore size was calculated using the BJH model in the range 1.4–200 nm and the DFT method in the micropore range.