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Wu C, Teng Z, Yang C, Chen F, Yang HB, Wang L, Xu H, Liu B, Zheng G, Han Q. Polarization Engineering of Covalent Triazine Frameworks for Highly Efficient Photosynthesis of Hydrogen Peroxide from Molecular Oxygen and Water. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2110266. [PMID: 35524761 DOI: 10.1002/adma.202110266] [Citation(s) in RCA: 60] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 04/25/2022] [Indexed: 06/14/2023]
Abstract
Two-electron oxygen photoreduction to hydrogen peroxide (H2 O2 ) is seriously inhibited by its sluggish charge kinetics. Herein, a polarization engineering strategy is demonstrated by grafting (thio)urea functional groups onto covalent triazine frameworks (CTFs), giving rise to significantly promoted charge separation/transport and obviously enhanced proton transfer. The thiourea-functionalized CTF (Bpt-CTF) presents a substantial improvement in the photocatalytic H2 O2 production rate to 3268.1 µmol h-1 g-1 with no sacrificial agents or cocatalysts that is over an order of magnitude higher than unfunctionalized CTF (Dc-CTF), and a remarkable quantum efficiency of 8.6% at 400 nm. Mechanistic studies reveal the photocatalytic performance is attributed to the prominently enhanced two-electron oxygen reduction reaction by forming endoperoxide at the triazine unit and highly concentrated holes at the thiourea site. The generated O2 from water oxidation is subsequently consumed by the oxygen reduction reaction (ORR), thereby boosting overall reaction kinetics. The findings suggest a powerful functional-groups-mediated polarization engineering method for the development of highly efficient metal-free polymer-based photocatalysts.
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Affiliation(s)
- Chongbei Wu
- Key Laboratory of Cluster Science, Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Department of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Zhenyuan Teng
- Department of Applied Chemistry, Faculty of Engineering, Kyushu Institute of Technology, Kitakyushu, 804-8550, Japan
| | - Chao Yang
- Laboratory of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, 200438, P. R. China
| | - Fangshuai Chen
- Key Laboratory of Cluster Science, Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Department of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Hong Bin Yang
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Lei Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230022, P. R. China
| | - Hangxun Xu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230022, P. R. China
| | - Bin Liu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Gengfeng Zheng
- Laboratory of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, 200438, P. R. China
| | - Qing Han
- Key Laboratory of Cluster Science, Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Department of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
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Díaz MG, Vega‐Hissi EG, Andrada MF, Garro Martinez JC. Scavenging of Hydrogen Peroxide by Allyl Methyl Sulfide and Diallyl Sulfide, Two Garlic Active Compounds: A Theoretical Study. ChemistrySelect 2020. [DOI: 10.1002/slct.201904725] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Mario G. Díaz
- IMIBIOCONICETFacultad de QuímicaBioquímica y FarmaciaUniversidad Nacional de San Luis Avenida Ejército de los Andes 950 5700 San Luis Argentina
| | - Esteban G. Vega‐Hissi
- IMIBIOCONICETFacultad de QuímicaBioquímica y FarmaciaUniversidad Nacional de San Luis Avenida Ejército de los Andes 950 5700 San Luis Argentina
| | - Matias F. Andrada
- Facultad de Química, Bioquímica y Farmacia, UniversidadFacultad de QuímicaBioquímica y FarmaciaUniversidad Nacional de San Luis Chacabuco 915 5700 San Luis Argentina
| | - Juan C. Garro Martinez
- IMIBIOCONICETFacultad de QuímicaBioquímica y FarmaciaUniversidad Nacional de San Luis Avenida Ejército de los Andes 950 5700 San Luis Argentina
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