State Key Laboratory of Pollution Control and Resource Reuse, Nanjing University, Nanjing, 210023, China; School of the Environment, Nanjing University, Nanjing, 210023, China.
Shanghai Fisheries Research Institute, Shanghai Fisheries Technical Extension Station, Shanghai, 200433, China.
Chemosphere. 2024 Sep;364:143240. doi: 10.1016/j.chemosphere.2024.143240. Epub 2024 Aug 31.
Iron(II)-based metal organic framework (Fe(II)-MOF) nanosheets have emerged as promising candidates for photo-Fenton catalysis. However, efficiently synthesizing Fe(II)-MOF nanosheets remains a significant challenge. Here, a bottom-up synthesis strategy is proposed to prepare two-dimensional Fe-MOF nanosheets (TFMN) with micrometer lateral dimensions and nanometer thickness, featuring Fe(II) as the metal nodes. The application of TFMN in the photo-Fenton degradation of carbamazepine (CBZ) demonstrates remarkable CBZ degradation performance and excellent efficiency across a wide range of pH values. The electron density and density of states are further calculated by density functional theory. Mechanism analysis identifies h, •OH and •O as the predominant active species contributing to the catalytic oxidation process in the Vis/TFMN/HO system.
基于铁(II)的金属有机骨架 (Fe(II)-MOF) 纳米片已成为光芬顿催化的有前途的候选物。然而，高效合成 Fe(II)-MOF 纳米片仍然是一个重大挑战。在这里，提出了一种自下而上的合成策略来制备具有微米级横向尺寸和纳米级厚度的二维 Fe-MOF 纳米片 (TFMN)，其金属节点为 Fe(II)。TFMN 在卡马西平 (CBZ) 的光芬顿降解中的应用表现出优异的 CBZ 降解性能和在很宽的 pH 值范围内的高效性。进一步通过密度泛函理论计算了电子密度和态密度。通过机制分析，确定 h、•OH 和•O 是在 Vis/TFMN/HO 体系中促进催化氧化过程的主要活性物质。
