title: Synthesis of MoS2/g-C3N4nanocomposites with enhanced visible-light photocatalytic activity for the removal of nitric oxide (NO).
abstract: Molybdenum disulfide and graphitic carbon nitride (MoS2-g-C3N4) nanocomposites with visible-light induced photocatalytic activity were successfully synthesized by a facile ultrasonic dispersion method. The crystalline structure and morphology of the MoS2-g-C3N4nanocomposites were characterized by X-ray diffraction (XRD), transmission electron microcopy (TEM), high-resolution TEM (HRTEM) and scanning electron microscopy (SEM). The optical property of the as-prepared nanocomposites was studied by ultraviolet visible diffusion reflection (UV-vis) and photoluminescence(PL) spectrum. It could be observed from the TEM image that the MoS2nanosheets and g-C3N4nanoparticles were well combined together. Moreover, the photocatalytic activity of MoS2-g-C3N4composites was evaluated by the removal of nitric oxide under visible light irradiation (>400nm). The experimental results demonstrated that the nanocomposites with the MoS2content of 1.5 wt% exhibited optimal photocatalytic activity and the corresponding removal rate of NO achieved 51.67%, higher than that of pure g-C3N4nanoparticles. A possible photocatalytic mechanism for the MoS2-g-C3N4nanocomposites with enhanced photocatalytic activity could be ascribed to the hetero-structure of MoS2and g-C3N4.
authors.forename: M Q
authors.initials: MQ
authors.lastname: Wen
authors.forename: T
authors.initials: T
authors.lastname: Xiong
authors.forename: Z G
authors.initials: ZG
authors.lastname: Zang
authors.forename: W
authors.initials: W
authors.lastname: Wei
authors.forename: X S
authors.initials: XS
authors.lastname: Tang
authors.forename: F
authors.initials: F
authors.lastname: Dong