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Tạp chí khoa học ĐHCT
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Kỷ yếu HN trong nước
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Bài báo - Tạp chí
84 (2019) Trang: 1046-1051
Tạp chí: ChemPlusChem

A new cerium-based metal-organic framework, namely MOF-589, was synthesized usingtetracarboxylic acid, benzoimidephenanthroline tetracarboxylic acid (H4BIPA-TC), as organic linker. Full characterization including single crystal and powder X-ray diffraction analysis, thermogravimetrical analysis, scanning electron microscopy, and N2 adsorption measurement at low pressure and 77 K were demonstrated. The material was employed as an efficient heterogeneous catalyst for decomposition of methylene blue (MB) dye (40 ppm) in the presence of H2O2 in 15 minutes. Interestingly, comparison study was conducted and the activity of MOF 589 was higher than that of other iron-based heterogeneous and cerium-based catalysts. Further experiments on clarification of MOF 589 activity indicated that BIPA-TC linker might have an important impact via cooperative effect on metal cluster. Control studies confirmed the necessity of catalyst and its recyclability. In particular, catalysis from leached cerium in reaction filtrate is unlikely and the solid material could be reused at least 08 times without remarkable loss in activity

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