In situ growing Bi2MoO6on g-C3N4nanosheets with enhanced photocatalytic hydrogen evolution and disinfection of bacteria under visible light irradiation.
Bi2MoO6/g-C3N4heterojunctions were fabricated by an in situ solvothermal method using g-C3N4nanosheets. The photocatalytic activities of as-prepared samples were evaluated by hydrogen evolution from water splitting and disinfection of bacteria under visible light irradiation. The results indicate that exfoliating bulk g-C3N4to g-C3N4nanosheets greatly enlarges the specific surface area and shortens the diffusion distance for photogenerated charges, which could not only promote the photocatalytic performance but also benefit the sufficient interaction with Bi2MoO6. Furthermore, intimate contact of Bi2MoO6(BM) and g-C3N4nanosheets (CNNs) in the BM/CNNs composites facilitates the transfer and separation of photogenetrated electron-hole pairs. 20%-BM/CNNs heterojunction exhibits the optimal photocatalytic hydrogen evolution as well as photocatalytic disinfection of bacteria. Furthermore, h+was demonstrated as the dominant reactive species which could make the bacteria cells inactivated in the photocatalytic disinfection process. This study extends new chance of g-C3N4-based photocatalysts to the growing demand of clean new energy and drinking water.
School of Chemical Engineering, Northwest University, Xi'an, 710069, PR China; School of Environmental Engineering and Chemistry, Luoyang Institute of Science and Technology, Luoyang, 471023, PR China.
Juan
J
Li
School of Chemical Engineering, Northwest University, Xi'an, 710069, PR China.
Yunchao
Y
Yin
School of Chemical Engineering, Northwest University, Xi'an, 710069, PR China.
Enzhou
E
Liu
School of Chemical Engineering, Northwest University, Xi'an, 710069, PR China.
Yongning
Y
Ma
School of Chemical Engineering, Northwest University, Xi'an, 710069, PR China.
Jun
J
Wan
School of Chemical Engineering, Northwest University, Xi'an, 710069, PR China. Electronic address: fanjun@nwu.edu.cn.
Jun
J
Fan
School of Physics, Northwest University, Xi'an, 710069, PR China. Electronic address: hxy3275@nwu.edu.cn.
Xiaoyun
X
Hu
D001729:Bismuth / Q000737:chemistry*; D002384:Catalysis; D004203:Disinfection; D004926:Escherichia coli / Q000187:drug effects / Q000528:radiation effects; D006859:Hydrogen / Q000032:analysis*; D008027:Light; D008982:Molybdenum / Q000737:chemistry*; D053761:Nanocomposites / Q000737:chemistry*; D009570:Nitriles / Q000737:chemistry*; D055668:Photochemical Processes; D013211:Staphylococcus aureus / Q000187:drug effects / Q000528:radiation effects; D013499:Surface Properties
C000599478:Bi(2)MoO(6); D009570:Nitriles; C011206:cyanogen; D006859:Hydrogen; D008982:Molybdenum; D001729:Bismuth
Bi(2)MoO(6); Disinfection of bacteria; Hydrogen evolution; Photocatalysis; g-C(3)N(4) nanosheets