Novel Bi2WO6 modified by N doped graphitic carbon nitride photocatalyst for efficient photocatalytic degradation of phenol under visible light
Abstract In this study, a series of NCN/BiWO (NCN N doped graphitic carbon nitride, BiWO Bi2WO6) were fabricated successfully, which were characterized by XRD, TEM, FTIR, BET, UV vis spectrometry, XPS and PL. Under visible light irradiation, the optimum mass ratio of 60 NCN/BiWO could reach 93.1 removal efficiency of phenol within 5 h, which was about 6.9 times as that pure Bi2WO6. And the degradation rate constant of 60 NCN/BiWO (2.6726 min 1) was about 18.5 times as that of pure Bi2WO6 (0.1442 min 1) According to the result of UV vis absorption spectra, VB XPS spectra and photoelectrochemistry performance, the photocatalytic mechanism of 60 NCN/BiWO was revealed, indicating that the narrow band gap of 60 NCN/BiWO is the main factor on the high photocatalytic activity. The stable and recyclable properties also were done, showing highly suitable for practical application.