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Journal of Materials Science

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22.04.2020 | Chemical routes to materials

Fluorinated phenylpyridine iridium (III) complex based on metal–organic framework as highly efficient heterogeneous photocatalysts for cross-dehydrogenative coupling reactions

verfasst von: Lu Qiu, Anwang Dong, Shizhen Zhang, Shunli Wang, Zhaosen Chang, Yan Lu, Zhuyin Sui, Lijuan Feng, Qi Chen

Erschienen in: Journal of Materials Science | Ausgabe 22/2020

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Abstract

Photocatalytic reactions are promising strategies for converting solar energy into chemical energy. In this work, a MOF-based composite UiO-67-IrF with Ir complex and an electron-withdrawing group (trifluoromethyl group) is prepared and used as a photocatalyst for cross-dehydrogenation coupling reactions. For comparison, UiO-67-Ir without trifluoromethyl group and their pristine MOF UiO-67-bpy were also obtained. Both Ir-bearing composites (UiO-67-IrF and UiO-67-Ir) have crystalline and porous structure and high specific surface area (> 762 m² g⁻¹) and can effectively utilize visible light for cross-dehydrogenative coupling reactions. Notably, UiO-67-IrF with trifluoromethyl group has a lower specific surface area, but owns higher photocatalytic performance (yields about 82–89%) than its counterpart UiO-67-Ir, due to its better light absorption and charge separation under visible-light exposure.

Vorheriger Artikel Graphene oxide-embedded chitosan/gelatin hydrogel particles for the adsorptions of multiple heavy metal ions

Nächster Artikel Synthesis and sorption characteristics of tungsten oxides-based materials for Sr-90 removal from water media

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Titel: Fluorinated phenylpyridine iridium (III) complex based on metal–organic framework as highly efficient heterogeneous photocatalysts for cross-dehydrogenative coupling reactions
verfasst von: Lu Qiu
Anwang Dong
Shizhen Zhang
Shunli Wang
Zhaosen Chang
Yan Lu
Zhuyin Sui
Lijuan Feng
Qi Chen
Publikationsdatum: 22.04.2020
Verlag: Springer US
Erschienen in: Journal of Materials Science / Ausgabe 22/2020
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI: https://doi.org/10.1007/s10853-020-04674-8

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