Abstract
Graphitic carbon nitride absorbs light in the visible region, but the electron-hole recombination rate is very fast. Decreasing the electron-hole recombination rate is very important in order to attain high efficiency. In this paper, this goal was achieved by the decoration of graphitic carbon nitride with Bi2WO6. Bi2WO6@g-C3N4 and g-C3N4 were prepared using a hydrothermal method in the presence of octadecyltri methyl ammonium bromide as a surfactant. The prepared materials were characterized by many techniques. The photo catalytic activity of Bi2WO6@g-C3N4 is 1.9 times better than g-C3N4 at methanol production. In addition, Bi2WO6@g-C3N4 exhibits photo catalytic stability for methanol production, which enables many reuses of the photo catalyst.