Highly efficient and stable Ag-g-C3N4/AC photocatalyst for photocatalytic degradation, Cr(VI) reduction and bacteriostasis under visible light irradiation

The study reports a facile synthesis of Ag-g-C3N4/AC composites with highly photocatalytic activity and good adsorption capacity by an impregnation-thermal polycondensation process. The resulting Ag-g-C3N4/AC composites were used for treatment of different pollutants in water including Rhodamine B (RhB), Cr(VI) ions and pathogens. When the precursor mass ratio of urea and AC was 2:2, the resultant Ag-g-C3N4/AC catalyst showed the best...