▎ 摘　　要

The preparation of nanostructure cobalt phthalocyanine/nitrogen-doped graphene (CoPc/NG) composite is described in this contribution. The products were characterized by X-ray diffraction (XRD), FT-IR, Raman spectrometer, X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM) and energy dispersive spectroscopy (EDS and Map). The photocatalytic activity of the final product was tested for degradation of 2,4-dichlorophenol (DCP), as a probe contaminant under visible-light irradiation. The result shows that the DCP degradation efficiency is increased with a hybrid of CoPc and nitrogen-doped graphene (NG). This composite could eliminate about 80% of DCP (50 mL, 40 mg L-1 ) within 135 min. The study of kinetic models showed that the DCP degradation process follows pseudo first-order kinetics. The prepared CoPc/NG composite containing an appropriate dose of nitrogen exhibited the highest reaction rate constant in comparison with other catalysts.(c) 2023 Elsevier B.V. All rights reserved.