Abstract
Ordered cubic mesoporous graphitic carbon nitride (g-C3N4) was synthesized by a simple chemical vapor deposition method using three-dimensional cubic mesoporous silica KIT-6 as the template and melamine as the precursor. X-ray diffraction, nitrogen adsorption–desorption, transmission electron microscopy and UV–vis diffuse reflectance spectra analysis techniques were used to analyze the sample. It was observed that the synthesized ordered mesoporous g-C3N4 had a cubic I4132 symmetry with a high surface area of 129.8m2/g and uniform pore size of 3.5nm. Because of these properties, the obtained ordered mesoporous g-C3N4 exhibited an enhanced photocatalytic activity for the reduction of CO2 with H2O when compared that of flake-like g-C3N4.
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