双金属片
催化作用
电负性
降级(电信)
Atom(片上系统)
光致发光
动力学
材料科学
光化学
化学
化学工程
纳米技术
诺氟沙星
光电子学
有机化学
计算机科学
嵌入式系统
生物化学
工程类
物理
量子力学
抗生素
环丙沙星
电信
作者
Gang Zhou,Peifang Wang,Hao Li,Rong Huang,Bin Hu,Yitong Liu,Tinghui Li
标识
DOI:10.1016/j.apcatb.2021.120525
摘要
The high level of norfloxacin (NOR) in aquatic environment causes bacterial drug resistance and perilous effects on human and aquatic life because of the greater toxicity and the oxidation-refractory property. Herein, we propose a series of porous metal-organic frameworks (MOFs) via a developed solvothermal process to accelerate NOR degradation, in which the solar response and catalytic activity is sharply enhanced through an electronic hybridization between Fe3+ and Co2+ metal center. The time-resolved photoluminescence spectra disclose that electrostatic potential induced by electronegativity difference in bimetallic sites leads to an efficient separation of electron-hole pairs. As a result, the optimized bimetallic MOF sample makes the NOR concentration go down to ∼20 % within 30 min under sunlight radiation, keeping an unchanged activity after 9 cycles. Our findings provide new inspirations for regulating the photogenic carrier dynamics via bimetallic hybridization strategy in accelerating NOR degradation.
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