Volume 33, Issue 12 e5243
FULL PAPER

A stable pillared metal–organic framework constructed by H4TCPP ligand as luminescent sensor for selective detection of TNP and Fe3+ ions

Yu Ye

Yu Ye

State Key Lab of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012 P. R. China

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Libo Sun

Libo Sun

School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459 Singapore

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Chenghui Zhang

Chenghui Zhang

State Key Lab of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012 P. R. China

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Jianfeng Du

Jianfeng Du

State Key Lab of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012 P. R. China

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Yuchuan Liu

Yuchuan Liu

State Key Lab of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012 P. R. China

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Xiaowei Song

Corresponding Author

Xiaowei Song

State Key Lab of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012 P. R. China

Correspondence

Xiaowei Song, State Key Lab of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China.

Email: [email protected]

Zhiqiang Liang, State Key Lab of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China.

Email: [email protected]

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Zhiqiang Liang

Corresponding Author

Zhiqiang Liang

State Key Lab of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012 P. R. China

Correspondence

Xiaowei Song, State Key Lab of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China.

Email: [email protected]

Zhiqiang Liang, State Key Lab of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China.

Email: [email protected]

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First published: 22 October 2019
Citations: 16

Funding information: 111 project of the Ministry of Education of China, Grant/Award Number: B17020; Ministry of Education of China, Grant/Award Number: B17020; National Natural Science Foundation of China, Grant/Award Numbers: 21471064, 21621001, 21871104

Abstract

A novel luminescent metal–organic framework (Zn-TCPP/BPY) with pillared structure based on 2,3,5,6-tetrakis(4-carboxyphenyl)pyrazine (H4TCPP) and 4,4′-bipyridine (BPY) has been designed and synthesized through a solvothermal reaction. The [Zn2(COO)4] paddlewheel units are linked by TCPP4− ligands to form two-dimensional layers and further connected by BPY ligands as pillars to construct the twofold interpenetrating three-dimensional framework. Interestingly, Zn-TCPP/BPY possesses outstanding stability in organic solvents and water as well as maintains its structural rigidity in aqueous solutions of different pH values (3–12). After activation, Zn-TCPP/BPY possesses permanent porosity with Brunauer–Emmett–Teller surface area of 630 m2 g–1. Remarkably, Zn-TCPP/BPY displays excellent fluorescent property in virtue of the aggregation-induced emission effect of the H4TCPP ligand, which can be highly active and quenched by small amounts of 2,4,6-trinitrophenol (TNP) and Fe3+ ions. Furthermore, the detection effect of Zn-TCPP/BPY remains basically the same even after five cycles. The excellent stability, high sensitivity, and recyclability of Zn-TCPP/BPY make it an outstanding chemical sensor for detecting TNP and Fe3+ ions.

CONFLICT OF INTEREST

There are no conflicts to declare.

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