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Issue 6, 2018
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Effects of electron-donating groups on the photocatalytic reaction of MOFs

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Abstract

Regulating the synthesis of photocatalytic materials at the molecular level could affect the absorption of light and guide the synthesis of highly efficient photocatalysts for the photocatalytic degradation organic pollutants. The results of UV-visible diffuse reflectance spectroscopy (UV-vis DRS), zeta potential and the photocatalytic degradation of phenanthrene in water both proved that the stronger the electron-donating groups in MIL-101(Fe)-X and UIO-66-X (X = –OH, –NH2, –COOH, –NO2 and –H), the better the photocatalytic efficiency, and the catalytic efficiency followed the order of –OH > –NH2 > –COOH > –NO2 > –H. This order was due the electronegativity regulation of the MIL-101(Fe)-X and UIO-66-X by the electron-donating groups in their structure. The XRD, UV-vis DRS and XPS studies of MIL-101(Fe)-X and UIO-66-X showed that the structure of these two series of MOFs remained unchanged after the photocatalytic degradation of phenanthrene. The above results provide a direction for the synthesis of highly efficient photocatalysts.

Graphical abstract: Effects of electron-donating groups on the photocatalytic reaction of MOFs

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Publication details

The article was received on 26 Dec 2017, accepted on 27 Feb 2018 and first published on 27 Feb 2018


Article type: Paper
DOI: 10.1039/C7CY02622F
Citation: Catal. Sci. Technol., 2018,8, 1696-1703
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    Effects of electron-donating groups on the photocatalytic reaction of MOFs

    S. Li, S. Sun, H. Wu, C. Wei and Y. Hu, Catal. Sci. Technol., 2018, 8, 1696
    DOI: 10.1039/C7CY02622F

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