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首页> 外文期刊>ACS applied materials & interfaces >Metal-Organic Framework-Based Composite for Photocatalytic Detection of Prevalent Pollutant
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Metal-Organic Framework-Based Composite for Photocatalytic Detection of Prevalent Pollutant

机译:基于金属 - 有机框架的光催化检测普遍污染物的复合材料

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摘要

Photocatalytic properties of 2,5-furandicarboxylic acid (FDCA), a model organic molecule used for biopolymer production, are reported for the first time. Further integration of FDCA into metal-organic framework (MOF) structures and subsequent silver-based photoactivation leads to the next generation of hybrids with controlled morphologies, capable of forming sensorial platforms for prevalent phenol contaminant detection. The mechanisms that allow photocatalytic functionality are driven by the charge carrier generation in the organic molecule (either in its alone or integrated form) and depend on sample's physical and chemical properties as confirmed by scanning and transmission electron microscopy, Fourier transform infrared and X-ray photoelectron spectroscopy, and X-ray diffraction, respectively. Electrochemical analysis using cyclic voltammetry confirmed high sensitivity for p-nitrophenol (p-NP) detection as dictated by the selective electron migration at a user-controlled electrode interface. Considering the wide usage of p-NP and its increased discharge shown to lead to harmful effects on both the environment and biosystems, this new detection method is envisioned to allow effective control and regulation of such compound release, all under low-cost and environmentally friendly conditions.
机译:第一次报道了2,5-呋喃羧酸(FDCA)的光催化性能,用于生物聚合物生产的模型有机分子。 FDCA进一步将FDCA与金属 - 有机骨架(MOF)结构的整合和随后的银基的光活化导致下一代具有受控形态的杂种,能够形成普遍酚污染物检测的感觉平台。允许光催化功能的机制由有机分子中的电荷载体(其单独或整合形式)驱动,并取决于通过扫描和透射电子显微镜,傅里叶变换红外和X射线确认的样品的物理和化学性质光电子光谱分别和X射线衍射。使用循环伏安法的电化学分析证实了对P-硝基苯酚(P-NP)检测的高灵敏度,如用户控制的电极接口的选择性电子迁移所示。考虑到P-NP的广泛使用及其增加的放电导致对环境和生物系统的有害影响,设想了这种新的检测方法,以便有效控制和调节这种复合释放,所有这些都在低成本和环保下状况。

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