In the present work,a zinc-based metal-organic framework{[Zn(ddpd)_(0.5)(bipy)_(0.5)]·H_(2)O]}_(n)(1-Zn)(where ddpd=2,5-di(2',4'-dic arboxylphenyl)-1,4-difluorobenzene,bipy=4,4-bipyridine)was synthesized ...In the present work,a zinc-based metal-organic framework{[Zn(ddpd)_(0.5)(bipy)_(0.5)]·H_(2)O]}_(n)(1-Zn)(where ddpd=2,5-di(2',4'-dic arboxylphenyl)-1,4-difluorobenzene,bipy=4,4-bipyridine)was synthesized by a solvothermal method.Complex 1-Zn features a threedimensional(2,4,6)-connected network with{4^2.6^2.8^2}_(2){4^4.6^6.8^5}{6}topology.Meanwhile,without the assistance of other reagents,complex 1-Zn not only exhibited an exceeded 95%photodegradation efficiency for rhodamine B(Rh B),methyl blue(MB)and methyl orange(MO)within 40 min,but also showed high stability and recyclability.In addition,free radical quenching experiments and electron spin resonance(ESR)spectroscopy verified that the main active species in the photodegradation process were·O_(2)^(-)and OH,and a more indepth degradation mechanism was further elucidated by density functional theory(DFT)calculations.展开更多
基金the financial support of this work by the National Natural Science Foundation of China(No.U1904199)the Program for Science&Technology Innovation Team in Universities of Henan Province(No.21IRTSTHN004)+3 种基金the Program for Science and Technology Innovation Talents at the University of Henan Province(No.22HASTIT007)Science Foundation for Excellent Youth of Henan Province(No.212300410064)the Young Backbone Teachers in Colleges and Universities of Henan Province(No.2018GGJS119)Nanyang Normal University。
文摘In the present work,a zinc-based metal-organic framework{[Zn(ddpd)_(0.5)(bipy)_(0.5)]·H_(2)O]}_(n)(1-Zn)(where ddpd=2,5-di(2',4'-dic arboxylphenyl)-1,4-difluorobenzene,bipy=4,4-bipyridine)was synthesized by a solvothermal method.Complex 1-Zn features a threedimensional(2,4,6)-connected network with{4^2.6^2.8^2}_(2){4^4.6^6.8^5}{6}topology.Meanwhile,without the assistance of other reagents,complex 1-Zn not only exhibited an exceeded 95%photodegradation efficiency for rhodamine B(Rh B),methyl blue(MB)and methyl orange(MO)within 40 min,but also showed high stability and recyclability.In addition,free radical quenching experiments and electron spin resonance(ESR)spectroscopy verified that the main active species in the photodegradation process were·O_(2)^(-)and OH,and a more indepth degradation mechanism was further elucidated by density functional theory(DFT)calculations.
