Popping of g-C3N4 mixed with cupric nitrate: Facile synthesis of Cu-based catalyst for construction of CN bond

A novel strategy to synthesize copper-based nanoparticles supported on carbon nitride (C3N4) was developed by popping of mixture containing C3N4 and cupric nitrate. Characterizations such as X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) indicate that the structure of g-C3N4 maintained although a popping process occurred. High resolution transmission electronic microscopy (HRTEM) characterization illustrated that copper-based nanoparticles with diameter of