Volume 21, Issue 9 2410922
Research Article

Synergistic Enhancement of Ligand & Cluster Connectivity to Construct Highly Stable Fluorescein-Based MOFs with Thickened Channel Walls for Boosting Photocatalytic Activity

Han-Shu Li

Han-Shu Li

Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal, University Xuzhou, Jiangsu, 221116 P. R. China

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Ruiting Zheng

Ruiting Zheng

Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal, University Xuzhou, Jiangsu, 221116 P. R. China

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Yanhong Liu

Yanhong Liu

Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal, University Xuzhou, Jiangsu, 221116 P. R. China

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Li Pei

Li Pei

Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal, University Xuzhou, Jiangsu, 221116 P. R. China

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Pengyan Wu

Corresponding Author

Pengyan Wu

Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal, University Xuzhou, Jiangsu, 221116 P. R. China

E-mail: [email protected]; [email protected]

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Yan Yang

Yan Yang

Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal, University Xuzhou, Jiangsu, 221116 P. R. China

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Jian Wang

Corresponding Author

Jian Wang

Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal, University Xuzhou, Jiangsu, 221116 P. R. China

E-mail: [email protected]; [email protected]

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First published: 20 January 2025

Abstract

Fabricating visible-light-responsive metal−organic frameworks (MOFs) with high stability and effective catalytic functionality remains a long-term pursuit yet a great challenge. Herein, a strategy of increasing ligand and cluster connectivity is developed to construct highly stable fluorescein MOFs, La-CFL, presenting a new (4,8)-connected topological structure compared to Cd-FL constructed using 6-connected dinuclear clusters and 3-connected tritopic ligands. La8(CFL)4 containers like Chinese “Ritual Wine Vessels (Jue)” resemble linear arrangements interconnected by the [La2(COO)4] clusters. This arrangement induces benzene rings and xanthene rings to locate on the inner walls of 1D channels, resulting in thicker channel walls that contribute to enhanced stability. Consequently, La-CFL demonstrates outstanding catalytic performance in thiol–ene reactions under green LED irradiation. It exhibits 2.3 times higher efficiency than Cd-FL while reducing reaction time to one-fifth at 20 min. Furthermore, La-CFL displays size-selective catalysis and retains full activity for 20 cycles without degradation, an improvement over Cd-FL's recyclability limitations.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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