Pyrolysis synthesized g-C 3N 4 for photocatalytic degradation of methylene blue

Graphitic carbon nitride (g-c 3n 4) was synthesized at 520°c by the pyrolysis of cyanamide,dicyandiamide,and melamine. the samples were characterized by xray diffraction (xrd),uv-visible diffuse reflectance spectra,fourier transform infrared spectroscopy (ft-ir),and elemental analyzer. the photocatalytic activity of g-c 3n 4 was evaluated by the photodegrading experiments of methylene blue (mb). the results indicated that g-c 3n 4. a photocatalytic mechanism presumed the mb photodegradation over the c 3n 4 photocatalyst is attributed to photogenerated electron impelled multistep reduction of o 2. © 2013 gang xin and yali meng.