The Preparation of g-C3N4/CoAl-LDH Nanocomposites and Their Depollution Performances in Cement Mortars under UV-Visible Light

In this study, new organic-inorganic g-C3N4/CoAl-LDH nanocomposites were prepared and introduced to fabricate photocatalytic cement mortars by internal mixing, coating, spraying. The depollution of both was assessed NOx degradation reaction under UV-visible light irradiation. study results suggested that the efficiency improved with an increase in g-C3N4 content. g-C3N4/CoAl-LDH1.5 nanocomposite displayed highest capacity, which about 1.23 3.21 times pure CoAl-LDH, respectively. all fabricated using different approaches could effectively degrade target pollutants exhibited significant compatibility between cementitious substrate. Among them, coated showed strong resistance laboratory-simulated wearing abrasion a small decrease rate.