
X-ray diffraction patterns of SiO2 and Ag/SiO 2 composites.

EDX spectrum of the obtained Ag/SiO2 composite.

SEM images of (a) SiO2 and (b) Ag/SiO2 com-posites.

UV-Vis absorption spectra of SiO2 and Ag/SiO2 composites.

A simple sketch for the fabrication of SiO2/Ag core-shell composites.

C/C0 versus irradiation time plots for MO photodegradation.