Graphitic carbon nitride(g-C_(3)N_(4),denoted as CN)has gained significant attention for its potential applications in treating environmental pollutants due to its unique microstructure and chemical properties.In this...Graphitic carbon nitride(g-C_(3)N_(4),denoted as CN)has gained significant attention for its potential applications in treating environmental pollutants due to its unique microstructure and chemical properties.In this study,porous CN co-doped with Co and Mo(Co/Mo-CN)was successfully synthesized using a convenient thermal polymerization method involving polyoxometalate precursor of(NH_(4))_(4)[Co(Ⅱ)Mo_(6)O_(24)H_(6)](CoMo_(6)).The single-source precursor of CoMo_(6)was not only as a pore forming agent by oxidation etching,but also as a bimetallic doping source.Compared with pristine CN(P-CN),Co/Mo-CN possessed more advantages,such as high specific surface area,plentiful exposed active sites,extending the light absorption capability,rapid separation of photogenerated charge carriers,narrowed bandgap and more negative conduction band potential.As expected,the Co/Mo-CN exhibited a significant enhancement of adsorption ability for cationic dyes and photoreduction Cr(Ⅵ)under visible light irradiation compared to P-CN.This research opened a new pathway designing multifunctional CN-based materials.展开更多
基金supported by Science and Technology Development Project of Jilin Province(YDZJ202301ZYTS313)Doctoral Research Initiation Fund Project of Jilin Engineering(BSKJ201918)
文摘Graphitic carbon nitride(g-C_(3)N_(4),denoted as CN)has gained significant attention for its potential applications in treating environmental pollutants due to its unique microstructure and chemical properties.In this study,porous CN co-doped with Co and Mo(Co/Mo-CN)was successfully synthesized using a convenient thermal polymerization method involving polyoxometalate precursor of(NH_(4))_(4)[Co(Ⅱ)Mo_(6)O_(24)H_(6)](CoMo_(6)).The single-source precursor of CoMo_(6)was not only as a pore forming agent by oxidation etching,but also as a bimetallic doping source.Compared with pristine CN(P-CN),Co/Mo-CN possessed more advantages,such as high specific surface area,plentiful exposed active sites,extending the light absorption capability,rapid separation of photogenerated charge carriers,narrowed bandgap and more negative conduction band potential.As expected,the Co/Mo-CN exhibited a significant enhancement of adsorption ability for cationic dyes and photoreduction Cr(Ⅵ)under visible light irradiation compared to P-CN.This research opened a new pathway designing multifunctional CN-based materials.
