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Wang J, Liu Y, Yuan Z, Li L, Ma P, Wang J, Niu J. Visible-Light-Responsive Polyoxometalate@Metal-Organic Frameworks Involving Ir Metalloligands for Highly Selective Photocatalytic Oxidation of Sulfides to Sulfoxide. Chemistry 2024; 30:e202303401. [PMID: 38057690 DOI: 10.1002/chem.202303401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 12/05/2023] [Accepted: 12/06/2023] [Indexed: 12/08/2023]
Abstract
The synthesis of highly efficient visible-light-responsive photocatalysts is fundamental to solving the problems of low efficiency and poor selectivity in photocatalytic organic synthesis reactions. We synthesized a crystalline polyoxometalate @metal-organic framework material {Zn4 (H2 O)8 [Ir(ppy)2 (dcbpy)]4 [SiW12 O40 ]} ⋅ 4H2 O (Ir-SiW) by self-assembly of Ir metalloligands with POMs. The introduction of Ir metalloligands extends the light absorbing range to visible light, improving the efficient utilization of solar energy. The transfer of photogenerated electrons from Ir metalloligands to SiW12 was observed under visible light irradiation, which boosted the carrier separation efficiency. The synergistic effect of the two components increased the photocatalytic thioether oxidation activity, and the product methyl phenyl sulfoxide for 2.5 h under visible light irradiation (λ >400 nm) reached 99.5 %, which was higher than those of other POM-based photocatalysts. Meanwhile, the yield of methyl phenyl sulfoxide was still higher than 97 % after three cycles, demonstrating the high stability and reusability of Ir-SiW.
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Affiliation(s)
- Jing Wang
- Henan Key Laboratory of Polyoxometalate Chemistry College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan, 475004, P. R. China
| | - Yanan Liu
- Henan Key Laboratory of Polyoxometalate Chemistry College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan, 475004, P. R. China
- Puyang Institute of Technology, Henan University, Puyang, Henan, 457000, P. R. China
| | - Zelong Yuan
- Henan Key Laboratory of Polyoxometalate Chemistry College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan, 475004, P. R. China
| | - Luoning Li
- Henan Key Laboratory of Polyoxometalate Chemistry College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan, 475004, P. R. China
| | - Pengtao Ma
- Henan Key Laboratory of Polyoxometalate Chemistry College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan, 475004, P. R. China
| | - Jingping Wang
- Henan Key Laboratory of Polyoxometalate Chemistry College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan, 475004, P. R. China
| | - Jingyang Niu
- Henan Key Laboratory of Polyoxometalate Chemistry College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan, 475004, P. R. China
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Two new supramolecular compounds with reversible skeleton structure changes during dehydration and rehydration: Synthesis and characterization. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.04.048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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