There is an increasing need for the development of probes for the detection of hexavalent chromium since it is a known carcinogen, which can cause adverse effects on human health. Metal-organic frameworks (MOFs) have shown successful detection and removal of hazardous substances from aqueous media. This work presents the use of simple organic ligands such as 3-pyridinecarboxaldehyde and trimesic acid with Zn(II) ion to fabricate a new MOF that exhibits sensitive and selective luminescence quenching response towards CrO 4 2− and Cr 2 O 7 2− species in aqueous solution. The MOF showed a detection limit of 0.67 μ M (0.078 ppm) as CrO 4 2− species and 1.91 μ M (0.41 ppm) as Cr 2 O 7 2− species. Results reveal that the as-synthesized MOF could serve as a good luminescent sensor for CrO 4 2− and Cr 2 O 7 2− species in the ...

中文翻译：

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以 3-吡啶甲醛和均苯三酸为共配体的锌金属有机骨架用于选择性检测水溶液中的 Cr (VI) 离子

越来越需要开发用于检测六价铬的探针，因为它是一种已知的致癌物质，会对人体健康造成不利影响。金属有机框架 (MOF) 已显示成功检测和去除水介质中的有害物质。这项工作介绍了使用简单的有机配体，如 3-吡啶甲醛和均苯三酸与 Zn(II) 离子来制造一种新的 MOF，该 MOF 对 CrO 4 2- 和 Cr 2 O 7 2- 物种表现出灵敏和选择性的发光猝灭响应。水溶液。MOF 显示出作为 CrO 4 2- 物质的 0.67 μ M (0.078 ppm) 和作为 Cr 2 O 7 2- 物质的 1.91 μ M (0.41 ppm) 的检测限。结果表明，合成后的 MOF 可以作为一种良好的发光传感器，用于检测 CrO 4 2- 和 Cr 2 O 7 2- 物种在...