Microwave-assisted Chemical Modification of G-C3n4 for Photoinduced Processes: Organic Degradation, Hydrogen Production and Selective Oxidation of Alcohols

g-C3N4 powders were treated by means of the microwave technique in three different aqueous and organic media (HNO3, NaOH and N,N-dimethylformamide). All powders were analyzed by XRD reveling that g-C3N4 maintains its structure. The morphology of the samples was analyzed with scanning electron microscopy, where the micrographs reveals that the modification occurs on the surface of the g-C3N4. The photocatalytic activity of the samples was evaluated in the degradation of ciprofloxacin, hydrogen production and for the selective partial oxidation of 4-methoxybenzylalcohol (4-MBA) to its aldehyde. The sample treated with HNO3 (C3N4-HNO3) shows the best photocatalytic performance in the degradation of ciprofloxacin achieving a degradation around 57