研究目的
To design and synthesize new metal–organic frameworks (MOFs) for the selective detection of nitroaromatic compounds (NACs), specifically p-nitrophenol (PNP), and to explore their luminescent sensing properties.
研究成果
Four new d10-based MOFs were successfully synthesized and characterized. One of the Cd(II)-based MOFs exhibited promising sensing properties for the selective detection of nitroaromatics, especially p-nitrophenol, with a low detection limit. The study highlights the potential of MOFs as platforms for developing sensors for nitro-aromatic compounds.
研究不足
The study is limited to the synthesis and characterization of four MOFs and their luminescent sensing properties towards NACs. The sensing mechanism is explained through theoretical calculations, but experimental validation of the electron/energy transfer phenomenon is not provided.
1：Experimental Design and Method Selection:
The study involved the synthesis of four new MOFs using flexible dicarboxylate and N-donor ligands with d10 metal centers (Cd(II) and Zn(II)). The structures were characterized using single-crystal X-ray diffraction, powder X-ray diffraction (PXRD), Fourier transform infrared (FT-IR) spectroscopy, and thermogravimetric analysis (TGA).
2：Sample Selection and Data Sources:
The MOFs were synthesized from mixtures of H2L, N-donor ligands (bpp, bpz, bib), and metal salts (Cd(OCOCH3)2·2H2O, Zn(OCOCH3)2·2H2O) under hydrothermal conditions.
3：List of Experimental Equipment and Materials:
Equipment included a Bruker D8 ADVANCE X-ray diffractometer, Nicolet Impact 750 FTIR, SDT Q600 thermogravimetric analyzer, and Bruker SMART APEX diffractometer for single-crystal X-ray diffraction.
4：Experimental Procedures and Operational Workflow:
The MOFs were synthesized by heating mixtures of ligands and metal salts in water or ethanol/water at 120-180 °C for 72 h, followed by slow cooling. The luminescence properties were investigated using a RF-5301PC spectrofluorophotometer.
5：Data Analysis Methods:
The structures were solved by direct methods and refined using full-matrix least-squares procedures. Density functional theory (DFT) calculations were performed to understand the luminescence quenching mechanism.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
