1
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Qian Y, Han Y, Zhang X, Yang G, Zhang G, Jiang HL. Computation-based regulation of excitonic effects in donor-acceptor covalent organic frameworks for enhanced photocatalysis. Nat Commun 2023; 14:3083. [PMID: 37248231 DOI: 10.1038/s41467-023-38884-w] [Citation(s) in RCA: 36] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 05/18/2023] [Indexed: 05/31/2023] Open
Abstract
The strong excitonic effects widely exist in polymer-semiconductors and the large exciton binding energy (Eb) seriously limits their photocatalysis. Herein, density functional theory (DFT) calculations are conducted to assess band alignment and charge transfer feature of potential donor-acceptor (D-A) covalent organic frameworks (COFs), using 1,3,5-tris(4-aminophenyl)triazine (TAPT) or 1,3,5-tris(4-aminophenyl)benzene (TAPB) as acceptors and tereph-thaldehydes functionalized diverse groups as donors. Given the discernable D-A interaction strengths in the D-A pairs, their Eb can be systematically regulated with minimum Eb in TAPT-OMe. Guided by these results, the corresponding D-A COFs are synthesized, where TAPT-OMe-COF possesses the best activity in photocatalytic H2 production and the activity trend of other COFs is associated with that of calculated Eb for the D-A pairs. In addition, further alkyne cycloaddition for the imine linkage in the COFs greatly improves the stability and the resulting TAPT-OMe-alkyne-COF with a substantially smaller Eb exhibits ~20 times higher activity than the parent COF.
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Affiliation(s)
- Yunyang Qian
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Yulan Han
- Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Xiyuan Zhang
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Ge Yang
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Guozhen Zhang
- Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Hai-Long Jiang
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China.
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2
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Yang Y, Chu X, Zhang HY, Zhang R, Liu YH, Zhang FM, Lu M, Yang ZD, Lan YQ. Engineering β-ketoamine covalent organic frameworks for photocatalytic overall water splitting. Nat Commun 2023; 14:593. [PMID: 36737616 PMCID: PMC9898260 DOI: 10.1038/s41467-023-36338-x] [Citation(s) in RCA: 32] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Accepted: 01/26/2023] [Indexed: 02/05/2023] Open
Abstract
Covalent organic frameworks (COFs) are an emerging type of crystalline and porous photocatalysts for hydrogen evolution, however, the overall water splitting activity of COFs is rarely known. In this work, we firstly realized overall water splitting activity of β-ketoamine COFs by systematically engineering N-sites, architecture, and morphology. By in situ incorporating sub-nanometer platinum (Pt) nanoparticles co-catalyst into the pores of COFs nanosheets, both Pt@TpBpy-NS and Pt@TpBpy-2-NS show visible-light-driven overall water splitting activity, with the optimal H2 and O2 evolution activities of 9.9 and 4.8 μmol in 5 h for Pt@TpBpy-NS, respectively, and a maximum solar-to-hydrogen efficiency of 0.23%. The crucial factors affecting the activity including N-sites position, nano morphology, and co-catalyst distribution were systematically explored. Further mechanism investigation reveals the tiny diversity of N sites in COFs that induces great differences in electron transfer as well as reaction potential barriers.
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Affiliation(s)
- Yan Yang
- Heilongjiang Provincial Key Laboratory of CO2 Resource Utilization and Energy Catalytic Materials, School of Material Science and Chemical Engineering, Harbin University of Science and Technology, Harbin, Heilongjiang, 150080, People's Republic of China
| | - Xiaoyu Chu
- Heilongjiang Provincial Key Laboratory of CO2 Resource Utilization and Energy Catalytic Materials, School of Material Science and Chemical Engineering, Harbin University of Science and Technology, Harbin, Heilongjiang, 150080, People's Republic of China
| | - Hong-Yu Zhang
- Heilongjiang Provincial Key Laboratory of CO2 Resource Utilization and Energy Catalytic Materials, School of Material Science and Chemical Engineering, Harbin University of Science and Technology, Harbin, Heilongjiang, 150080, People's Republic of China
| | - Rui Zhang
- Heilongjiang Provincial Key Laboratory of CO2 Resource Utilization and Energy Catalytic Materials, School of Material Science and Chemical Engineering, Harbin University of Science and Technology, Harbin, Heilongjiang, 150080, People's Republic of China
| | - Yu-Han Liu
- Heilongjiang Provincial Key Laboratory of CO2 Resource Utilization and Energy Catalytic Materials, School of Material Science and Chemical Engineering, Harbin University of Science and Technology, Harbin, Heilongjiang, 150080, People's Republic of China
| | - Feng-Ming Zhang
- Heilongjiang Provincial Key Laboratory of CO2 Resource Utilization and Energy Catalytic Materials, School of Material Science and Chemical Engineering, Harbin University of Science and Technology, Harbin, Heilongjiang, 150080, People's Republic of China.
| | - Meng Lu
- School of Chemistry, South China Normal University, Guangzhou, Guangdong, 510006, People's Republic of China
| | - Zhao-Di Yang
- Heilongjiang Provincial Key Laboratory of CO2 Resource Utilization and Energy Catalytic Materials, School of Material Science and Chemical Engineering, Harbin University of Science and Technology, Harbin, Heilongjiang, 150080, People's Republic of China.
| | - Ya-Qian Lan
- School of Chemistry, South China Normal University, Guangzhou, Guangdong, 510006, People's Republic of China.
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3
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Chandra P, Choudhary N, Mobin SM. The game between molecular photoredox catalysis and hydrogen: The golden age of hydrogen budge. MOLECULAR CATALYSIS 2023. [DOI: 10.1016/j.mcat.2023.112921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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4
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Wang GB, Xie KH, Xu HP, Wang YJ, Zhao F, Geng Y, Dong YB. Covalent organic frameworks and their composites as multifunctional photocatalysts for efficient visible-light induced organic transformations. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214774] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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5
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Tian J, Zhang J, Xu B, Chen Q, Huang G, Bi J. An Artificial Photosystem of Metal-Insulator-CTF Nanoarchitectures for Highly Efficient and Selective CO 2 Conversion to CO. CHEMSUSCHEM 2022; 15:e202201107. [PMID: 35841604 DOI: 10.1002/cssc.202201107] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/10/2022] [Indexed: 06/15/2023]
Abstract
It is of pivotal significance to explore robust photocatalysts to promote the photoreduction of CO2 into solar fuels. Herein, an intelligent metal-insulator-semiconductor (MIS) nano-architectural photosystem was constructed by electrostatic self-assembly between cetyltrimethylammonium bromide (CTAB) insulator-capped metal Ni nanoparticles (NPs) and covalent triazine-based frameworks (CTF-1). The metal-insulator-CTF composites unveiled a substantially higher CO evolution rate (1254.15 μmol g-1 h-1 ) compared with primitive CTF-1 (1.08 μmol g-1 h-1 ) and reached considerable selectivity (98.9 %) under visible-light irradiation. The superior photocatalytic CO2 conversion activity over Ni-CTAB-CTF nanoarchitecture could be attributed to the larger surface area, reinforced visible-light response, and CO2 capture capacity. More importantly, the Ni-CTAB-CTF nanoarchitecture endowed the photoexcited electrons on CTF-1 with the ability to tunnel across the thin CTAB insulating layer, directionally migrating to Ni NPs and thereby leading to the efficient separation of photogenerated electrons and holes in the photosystem. In addition, isotope-labeled (13 CO2 ) tracer results verified that the reduction products come from CO2 rather than the decomposition of the photocatalysts. This study opens a new avenue for establishing a highly efficient and selective artificial photosystem for CO2 conversion.
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Affiliation(s)
- Jinjin Tian
- Department of Environmental Science and Engineering, Fuzhou University, Minhou, Fujian, 350108, P. R. China
| | - Jinpeng Zhang
- Department of Environmental Science and Engineering, Fuzhou University, Minhou, Fujian, 350108, P. R. China
| | - Bin Xu
- Department of Environmental Science and Engineering, Fuzhou University, Minhou, Fujian, 350108, P. R. China
| | - Qiaoshan Chen
- Department of Environmental Science and Engineering, Fuzhou University, Minhou, Fujian, 350108, P. R. China
| | - Guocheng Huang
- Department of Environmental Science and Engineering, Fuzhou University, Minhou, Fujian, 350108, P. R. China
| | - Jinhong Bi
- Department of Environmental Science and Engineering, Fuzhou University, Minhou, Fujian, 350108, P. R. China
- State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Minhou, Fujian, 350108, P. R. China
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6
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Lu Z, Zhao R, Yang H, Fu X, Zhao Y, Xiao L, Hou L. Influence of the Building Unit on Covalent Organic Frameworks in Mediating Photo‐induced Energy‐Transfer Reversible Complexation‐Mediated Radical Polymerization (PET‐RCMP). Angew Chem Int Ed Engl 2022; 61:e202208898. [DOI: 10.1002/anie.202208898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Zhen Lu
- Qingyuan Innovation Laboratory Quanzhou 362801 P. R. China
- College of Chemistry Fuzhou University No. 2 Xueyuan Road Fuzhou 350116 P. R. China
| | - Rui Zhao
- Qingyuan Innovation Laboratory Quanzhou 362801 P. R. China
| | - Hongjie Yang
- Department of Materials-Oriented Chemical Engineering School of Chemical Engineering Fuzhou University No. 2 Xueyuan Road Fuzhou 350116 P. R. China
| | - Xiaoling Fu
- Department of Materials-Oriented Chemical Engineering School of Chemical Engineering Fuzhou University No. 2 Xueyuan Road Fuzhou 350116 P. R. China
| | - Yulai Zhao
- Qingyuan Innovation Laboratory Quanzhou 362801 P. R. China
- Department of Materials-Oriented Chemical Engineering School of Chemical Engineering Fuzhou University No. 2 Xueyuan Road Fuzhou 350116 P. R. China
- Fujian Key Laboratory of Advanced Manufacturing Technology of Specialty Chemicals Fuzhou University No. 2 Xueyuan Road Fuzhou 350116 P. R. China
| | - Longqiang Xiao
- Qingyuan Innovation Laboratory Quanzhou 362801 P. R. China
- Department of Materials-Oriented Chemical Engineering School of Chemical Engineering Fuzhou University No. 2 Xueyuan Road Fuzhou 350116 P. R. China
- Fujian Key Laboratory of Advanced Manufacturing Technology of Specialty Chemicals Fuzhou University No. 2 Xueyuan Road Fuzhou 350116 P. R. China
| | - Linxi Hou
- Qingyuan Innovation Laboratory Quanzhou 362801 P. R. China
- Department of Materials-Oriented Chemical Engineering School of Chemical Engineering Fuzhou University No. 2 Xueyuan Road Fuzhou 350116 P. R. China
- Fujian Key Laboratory of Advanced Manufacturing Technology of Specialty Chemicals Fuzhou University No. 2 Xueyuan Road Fuzhou 350116 P. R. China
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7
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Lu Z, Zhao R, Yang H, Fu X, Zhao Y, Xiao L, Hou L. Influence of Building Unit on the Covalent Organic Framework in Mediating Photo‐induced PET‐RCMP. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Zhen Lu
- Fuzhou University Department of Materials-Oriented Chemical Engineering, School of Chemical Engineering CHINA
| | - Rui Zhao
- Fuzhou University Qingyuan Innovation Laboratory CHINA
| | - Hongjie Yang
- Fuzhou University Department of Materials-Oriented Chemical Engineering, School of Chemical Engineering xueyuan road,2 350116 fuzhou CHINA
| | - Xiaoling Fu
- Fuzhou University Department of Materials-Oriented Chemical Engineering, School of Chemical Engineering xueyuan road,2 350116 fuzhou CHINA
| | - Yulai Zhao
- Fuzhou University Department of Materials-Oriented Chemical Engineering, School of Chemical Engineering CHINA
| | - Longqiang Xiao
- Fuzhou University Department of Materials-Oriented Chemical Engineering, School of Chemical Engineering CHINA
| | - Linxi Hou
- Fuzhou University Department of Materials-Oriented Chemical Engineering, School of Chemical Engineering Xueyuan Road No. 2, Fuzhou 350116, China CHINA
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8
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Lin H, Wang J, Zhao J, Zhuang Y, Liu B, Zhu Y, Jia H, Wu K, Shen J, Fu X, Zhang X, Long J. Molecular Dipole-Induced Photoredox Catalysis for Hydrogen Evolution over Self-Assembled Naphthalimide Nanoribbons. Angew Chem Int Ed Engl 2022; 61:e202117645. [PMID: 35040544 DOI: 10.1002/anie.202117645] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Indexed: 12/31/2022]
Abstract
D-π-A type 4-((9-phenylcarbazol-3-yl)ethynyl)-N-dodecyl-1,8-naphthalimide (CZNI) with a large dipole moment of 8.49 D and A-π-A type bis[(4,4'-1,8-naphthalimide)-N-dodecyl]ethyne (NINI) with a negligible dipole moment of 0.28 D, were smartly designed and synthesized to demonstrate the evidence of a molecular dipole as the dominant mechanism for controlling charge separation of organic semiconductors. In aqueous solution, these two novel naphthalimides can self-assemble to form nanoribbons (NRs) that present significantly different traces of exciton dissociation dynamics. Upon photoexcitation of NINI-NRs, no charge-separated excitons (CSEs) are formed due to the large exciton binding energy, accordingly there is no hydrogen evolution. On the contrary, in the photoexcited CZNI-NRs, the initial bound Frenkel excitons are dissociated to long-lived CSEs after undergoing ultrafast charge transfer within ca. 1.25 ps and charge separation within less than 5.0 ps. Finally, these free electrons were injected into Pt co-catalysts for reducing protons to H2 at a rate of ca. 417 μmol h-1 g-1 , correspondingly an apparent quantum efficiency of ca. 1.3 % can be achieved at 400 nm.
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Affiliation(s)
- Huan Lin
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, P. R. China.,Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong, 999077, P. R. China.,Beijing Key Laboratory for Green Catalysis and Separation, Department of Environmental Chemical Engineering, Beijing University of Technology, Beijing, 100124, P. R. China
| | - Junhui Wang
- State Key Laboratory of Molecular Reaction Dynamics, Dynamics Research Center for Energy and Environmental Materials, Dalian Institute of Chemical Physics, Chinese Academy of Science, Dalian, 116023, P. R. China
| | - Jiwu Zhao
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, P. R. China
| | - Yan Zhuang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, P. R. China
| | - Bingqian Liu
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, P. R. China
| | - Yujiao Zhu
- Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong, 999077, P. R. China
| | - Huaping Jia
- Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong, 999077, P. R. China
| | - Kaifeng Wu
- State Key Laboratory of Molecular Reaction Dynamics, Dynamics Research Center for Energy and Environmental Materials, Dalian Institute of Chemical Physics, Chinese Academy of Science, Dalian, 116023, P. R. China
| | - Jinni Shen
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, P. R. China
| | - Xianzhi Fu
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, P. R. China
| | - Xuming Zhang
- Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong, 999077, P. R. China
| | - Jinlin Long
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, P. R. China
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9
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Long J, Lin H, Wang J, Zhao J, Zhuang Y, Liu B, Zhu Y, Jia H, Wu K, Shen J, Fu X, Zhang X. Molecular Dipole‐Induced Photoredox Catalysis for Hydrogen Evolution over Self‐assembled Naphthalimide Nanoribbons. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202117645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jinlin Long
- State Key Lab of Photocatalysis on Energy and Environmental College of Chemistry Xueyuan Road 2# 350108 Fuzhou CHINA
| | - Huan Lin
- Beijing University of Technology Department of Environmental Chemical Engineering CHINA
| | - Junhui Wang
- Dalian Institute of Chemical Physics State Key Laboratory of Molecular Reaction Dynamics and Dynamics Research Center for Energy and Environmental Materials CHINA
| | - Jiwu Zhao
- Fuzhou University College of Chemistry CHINA
| | - Yan Zhuang
- Fuzhou University College of Chemistry CHINA
| | | | - Yujiao Zhu
- The Hong Kong Polytechnic University Department of Applied Physics CHINA
| | - Huaping Jia
- The Hong Kong Polytechnic University Department of Applied Physics CHINA
| | - Kaifeng Wu
- Dalian Institute of Chemical Physics State Key Laboratory of Molecular Reaction Dynamics and Dynamics Research Center for Energy and Environmental Materials CHINA
| | - Jinni Shen
- Fuzhou University College of Chemistry CHINA
| | - Xianzhi Fu
- Fuzhou University College of Chemistry CHINA
| | - Xuming Zhang
- The Hong Kong Polytechnic University Department of Applied Physics CHINA
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10
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He Y, Pan G, Li L, Zhong S, Li L, Liu Z, Yu Y. Local charge transfer within a covalent organic framework and Pt nanoparticles promoting interfacial catalysis. Catal Sci Technol 2022. [DOI: 10.1039/d1cy02024b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A pyridine-functionalized covalent organic framework encapsulating Pt nanoparticles with local charge transfer was developed, which efficiently catalyzed H2 production from ammonia borane hydrolysis in water.
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Affiliation(s)
- Yajun He
- Key Laboratory of Eco-Materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Guodong Pan
- Key Laboratory of Eco-Materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Liuyi Li
- Key Laboratory of Eco-Materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Shenghong Zhong
- Key Laboratory of Eco-Materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Lingyun Li
- Key Laboratory of Eco-Materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Zheyuan Liu
- Key Laboratory of Eco-Materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Yan Yu
- Key Laboratory of Eco-Materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
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11
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Platinum Nanoclusters Uniformly Dispersed on Covalent Organic Framework Supports for Selective Synthesis of Secondary Amines. ChemCatChem 2021. [DOI: 10.1002/cctc.202101587] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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12
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Najafi M, Abednatanzi S, Yousefi A, Ghaedi M. Photocatalytic Activity of Supported Metal Nanoparticles and Single Atoms. Chemistry 2021; 27:17999-18014. [PMID: 34672043 DOI: 10.1002/chem.202102877] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Indexed: 12/22/2022]
Abstract
Photocatalysis has been known as one of the promising technologies due to its eco-friendly nature. However, the potential application of many photocatalysts is limited owing to their large bandgaps and inefficient use of the solar spectrum. One strategy to overcome this problem is to combine the advantages of heteroatom-containing supports with active metal centers to accurately adjust the structural parameters. Metal nanoparticles (MNPs) and single atom catalysts (SACs) are excellent candidates due to their distinctive coordination environment which enhances photocatalytic activity. Metal-organic frameworks (MOFs), covalent organic frameworks (COFs) and carbon nitride (g-C3 N4 ) have shown great potential as catalyst support for SACs and MNPs. The numerous combinations of organic linkers with various heteroatoms and metal ions provide unique structural characteristics to achieve advanced materials. This review describes the recent advancement of the modified MOFs, COFs and g-C3 N4 with SACs and NPs for enhanced photocatalytic applications with emphasis on environmental remediation.
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Affiliation(s)
- Mahnaz Najafi
- Department of Chemistry, Yasouj University, Yasouj, 75918-74813, Islamic Republic of Iran
| | - Sara Abednatanzi
- COMOC-Centre for Ordered Materials, Organometallics and Catalysis Department of Chemistry, Ghent University, Krijgslaan 281, S3, Gent, 9000, Belgium
| | - Abbas Yousefi
- Department of Chemistry, Yasouj University, Yasouj, 75918-74813, Islamic Republic of Iran
| | - Mehrorang Ghaedi
- Department of Chemistry, Yasouj University, Yasouj, 75918-74813, Islamic Republic of Iran
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13
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Chen Y, Yang D, Gao Y, Li R, An K, Wang W, Zhao Z, Xin X, Ren H, Jiang Z. On-Surface Bottom-Up Construction of COF Nanoshells towards Photocatalytic H 2 Production. RESEARCH 2021; 2021:9798564. [PMID: 34405143 PMCID: PMC8356126 DOI: 10.34133/2021/9798564] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 06/27/2021] [Indexed: 11/06/2022]
Abstract
The rational design of an outer shell is of great significance to promote the photocatalytic efficiency of core-shell structured photocatalysts. Herein, a covalent organic framework (COF) nanoshell was designed and deposited on the cadmium sulfide (CdS) core surface. A typical COF material, TPPA, featuring exceptional stability, was synthesized through interfacial polymerization using 1, 3, 5-triformylphloroglucinol (TP) and p-phenylenediamine (PA) as monomers. The nanoshell endows the CdS@TPPA nanosphere with ordered channels for unimpeded light-harvesting and fast diffusion of reactants/products and well-defined modular building blocks for spatially charge separation. Moreover, the heterojunction formed between CdS and TPPA can further facilitate the effective charge separation at the interface via lower exciton binding energy compared with that of pristine TPPA. By modulating the thickness of TPPA nanoshell, the CdS@TPPA nanosphere photocatalyst with the nanoshell thickness of about 8 ± 1 nm exhibits the highest photocatalytic H2 evolution of 194.1 μmol h−1 (24.3 mmol g−1 h−1, 8 mg), which is superior to most of the reported COF-based photocatalysts. The framework nanoshell in this work may stimulate the thinking about how to design advanced shell architecture in the core-shell structured photocatalysts to achieve coordinated charge and molecule transport.
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Affiliation(s)
- Yao Chen
- Key Laboratory for Green Chemical Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Dong Yang
- Key Laboratory of Systems Bioengineering of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.,School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Yuchen Gao
- Key Laboratory for Green Chemical Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Runlai Li
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Ke An
- Key Laboratory for Green Chemical Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Wenjing Wang
- Key Laboratory for Green Chemical Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.,Key Laboratory of Systems Bioengineering of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.,School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Zhanfeng Zhao
- Key Laboratory for Green Chemical Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Xin Xin
- Key Laboratory for Green Chemical Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China.,Key Laboratory of Systems Bioengineering of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Hanjie Ren
- Key Laboratory for Green Chemical Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Zhongyi Jiang
- Key Laboratory for Green Chemical Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China.,Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China
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14
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Qin S, Lei Y, Huang JF, Xiao LM, Liu JM. A Robust Photocatalytic Hybrid Material Composed of Metal-Organic Cages and TiO 2 for Efficient Visible-Light-Driven Hydrogen Evolution. Chem Asian J 2021; 16:2055-2062. [PMID: 34109766 DOI: 10.1002/asia.202100469] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/04/2021] [Indexed: 11/08/2022]
Abstract
The design of photochemical molecular devices (PMDs) for photocatalytic H2 production from water is a meaningful but challenging subject currently. Herein, a Pd2 L4 type metal-organic cage (denoted as MOC-Q2) is designed as a PMD, which consists of two catalytic centers (Pd2+ ) and four photosensitive ligands (L-2) with four pyridine anchoring groups. Subsequently, the MOC-Q2 is combined with TiO2 to form TiO2 -MOC-Q2 hybrid materials with different MOC-Q2 contents by a facile sol-gel method, which have micro/mesoporous structures and large surface areas. The optimized TiO2 -MOC-Q2 (6.5 wt%) exhibits high H2 production activity (7.9 mmol g-1 h-1 within 5 h) and excellent durability, giving a TON value of 23477 or 11739 (based on MOC-Q2 or Pd moles) after recycling for 7 rounds. By contrast, the pure MOC-Q2 only shows an ordinary photocatalytic H2 production rate (0.84 mmol g-1 h-1 within 5 h) in the homogeneous system. It can be deduced that TiO2 drives the photocatalysis and simultaneously acts as the structure promoter. This study presents a meaningful and distinctive attempt of a new approach for the design and development of MOC-based heterogeneous photocatalysts.
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Affiliation(s)
- Su Qin
- School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Yang Lei
- School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Jian-Feng Huang
- School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Li-Min Xiao
- School of Computer Science and Engineering, Beihang University, Beijing, 100191, P. R. China
| | - Jun-Min Liu
- School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, P. R. China
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15
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Xu Y, Ju CW, Li B, Ma QS, Chen Z, Zhang L, Chen J. Hydrogen Evolution Prediction for Alternating Conjugated Copolymers Enabled by Machine Learning with Multidimension Fragmentation Descriptors. ACS APPLIED MATERIALS & INTERFACES 2021; 13:34033-34042. [PMID: 34269560 DOI: 10.1021/acsami.1c05536] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Hydrogen evolution by alternating conjugated copolymers has attracted much attention in recent years. To study alternating copolymers with data-driven strategies, two types of multidimension fragmentation descriptors (MDFD), structure-based MDFD (SMDFD), and electronic property-based MDFD (EPMDFD), have been developed with machine learning (ML) algorithms for the first time. The superiority of SMDFD-based models has been demonstrated by the highly accurate and universal predictions of electronic properties. Moreover, EPMDFD-based, experimental-parameter-free ML models were developed for the prediction of the hydrogen evolution reaction, displaying excellent accuracy (real-test accuracy = 0.91). The combination of explainable ML approaches and first-principles calculations was employed to explore photocatalytic dynamics, revealing the importance of electron delocalization in the excited state. Virtual designing of high-performance candidates can also be achieved. Our work illustrates the huge potential of ML-based material design in the field of polymeric photocatalysts toward high-performance photocatalysis.
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Affiliation(s)
- Yuzhi Xu
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, College of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Cheng-Wei Ju
- College of Chemistry, Nankai University, Tianjin 300071, China
| | - Bo Li
- Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Qiu-Shi Ma
- School of Resource and Environmental Engineering, Hefei University of Technology, Hefei 230009, China
| | - Zhenyu Chen
- School of Materials Science and Engineering, Nankai University, Tianjin 300350, China
| | - Lianjie Zhang
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, College of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Junwu Chen
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, College of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
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16
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Lin H, Ma Z, Zhao J, Liu Y, Chen J, Wang J, Wu K, Jia H, Zhang X, Cao X, Wang X, Fu X, Long J. Electric-Field-Mediated Electron Tunneling of Supramolecular Naphthalimide Nanostructures for Biomimetic H 2 Production. Angew Chem Int Ed Engl 2021; 60:1235-1243. [PMID: 33026673 DOI: 10.1002/anie.202009267] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Revised: 09/25/2020] [Indexed: 11/11/2022]
Abstract
The design and synthesis of two semiconducting bis (4-ethynyl-bridging 1, 8-naphthalimide) bolaamphiphiles (BENI-COO- and BENI-NH3 + ) to fabricate supramolecular metal-insulator-semiconductor (MIS) nanostructures for biomimetic hydrogen evolution under visible light irradiation is presented. A H2 evolution rate of ca. 3.12 mmol g-1 ⋅h-1 and an apparent quantum efficiency (AQE) of ca. 1.63 % at 400 nm were achieved over the BENI-COO- -NH3 + -Ni MIS photosystem prepared by electrostatic self-assembly of BENI-COO- with the opposite-charged DuBois-Ni catalysts. The hot electrons of photoexcited BENI-COO- nanofibers were tunneled to the molecular Ni collectors across a salt bridge and an alkyl region of 2.2-2.5 nm length at a rate of 6.10×108 s-1 , which is five times larger than the BENI-NH3 + nanoribbons (1.17×108 s-1 ). The electric field benefited significantly the electron tunneling dynamics and compensated the charge-separated states insufficient in the BENI-COO- nanofibers.
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Affiliation(s)
- Huan Lin
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, P. R. China.,College of Chemical Engineering, Fuzhou University, Fuzhou, 350108, P. R. China
| | - Zhiyun Ma
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, P. R. China
| | - Jiwu Zhao
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, P. R. China
| | - Yang Liu
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, P. R. China
| | - Jinquan Chen
- Department State Key Laboratory of Precision Spectroscopy, Zhongshan Campus, East China Normal University, Shanghai, 200062, P. R. China
| | - Junhui Wang
- State Key Laboratory of Molecular Reaction Dynamics and Dynamics Research Center for Energy and Environmental Materials, Dalian Institute of Chemical Physics, Chinese Academy of Science, Dalian, 116023, P. R. China
| | - Kaifeng Wu
- State Key Laboratory of Molecular Reaction Dynamics and Dynamics Research Center for Energy and Environmental Materials, Dalian Institute of Chemical Physics, Chinese Academy of Science, Dalian, 116023, P. R. China
| | - Huaping Jia
- Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong, 999077, P. R. China
| | - Xuming Zhang
- Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong, 999077, P. R. China
| | - Xinhua Cao
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang, 464000, P. R. China
| | - Xuxu Wang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, P. R. China
| | - Xianzhi Fu
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, P. R. China
| | - Jinlin Long
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, P. R. China
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17
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Lin H, Ma Z, Zhao J, Liu Y, Chen J, Wang J, Wu K, Jia H, Zhang X, Cao X, Wang X, Fu X, Long J. Electric‐Field‐Mediated Electron Tunneling of Supramolecular Naphthalimide Nanostructures for Biomimetic H
2
Production. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202009267] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Huan Lin
- State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry Fuzhou University Fuzhou 350108 P. R. China
- College of Chemical Engineering Fuzhou University Fuzhou 350108 P. R. China
| | - Zhiyun Ma
- State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry Fuzhou University Fuzhou 350108 P. R. China
| | - Jiwu Zhao
- State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry Fuzhou University Fuzhou 350108 P. R. China
| | - Yang Liu
- State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry Fuzhou University Fuzhou 350108 P. R. China
| | - Jinquan Chen
- Department State Key Laboratory of Precision Spectroscopy Zhongshan Campus East China Normal University Shanghai 200062 P. R. China
| | - Junhui Wang
- State Key Laboratory of Molecular Reaction Dynamics and Dynamics Research Center for Energy and Environmental Materials Dalian Institute of Chemical Physics Chinese Academy of Science Dalian 116023 P. R. China
| | - Kaifeng Wu
- State Key Laboratory of Molecular Reaction Dynamics and Dynamics Research Center for Energy and Environmental Materials Dalian Institute of Chemical Physics Chinese Academy of Science Dalian 116023 P. R. China
| | - Huaping Jia
- Department of Applied Physics The Hong Kong Polytechnic University Hong Kong 999077 P. R. China
| | - Xuming Zhang
- Department of Applied Physics The Hong Kong Polytechnic University Hong Kong 999077 P. R. China
| | - Xinhua Cao
- College of Chemistry and Chemical Engineering Xinyang Normal University Xinyang 464000 P. R. China
| | - Xuxu Wang
- State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry Fuzhou University Fuzhou 350108 P. R. China
| | - Xianzhi Fu
- State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry Fuzhou University Fuzhou 350108 P. R. China
| | - Jinlin Long
- State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry Fuzhou University Fuzhou 350108 P. R. China
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18
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Chen X, Dang Q, Sa R, Li L, Li L, Bi J, Zhang Z, Long J, Yu Y, Zou Z. Integrating single Ni sites into biomimetic networks of covalent organic frameworks for selective photoreduction of CO 2. Chem Sci 2020; 11:6915-6922. [PMID: 33033603 PMCID: PMC7499818 DOI: 10.1039/d0sc01747g] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 06/09/2020] [Indexed: 11/21/2022] Open
Abstract
Selective photoreduction of CO2 into a given product is a great challenge but desirable. Inspired by natural photosynthesis occurring in hierarchical networks over non-precious molecular metal catalysts, we demonstrate an integration of single Ni sites into the hexagonal pores of polyimide covalent organic frameworks (PI-COFs) for selective photoreduction of CO2 to CO. The single Ni sites in the hexagonal pores of the COFs serve as active sites for CO2 activation and conversion, while the PI-COFs not only act as a photosensitizer to generate charge carriers but also exert a promoting effect on the selectivity. The optimized PI-COF with a triazine ring exhibits excellent activity and selectivity. A possible intra- and inter-molecular charge-transfer mechanism was proposed, in which the photogenerated electrons in PI-COFs are efficiently separated from the central ring to the diimide linkage, and then transferred to the single Ni active sites, as evidenced by theoretical calculations.
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Affiliation(s)
- Xin Chen
- Key Laboratory of Eco-materials Advanced Technology , College of Materials Science and Engineering , Fuzhou University , Fuzhou 350108 , China . ; ;
| | - Qiang Dang
- Key Laboratory of Eco-materials Advanced Technology , College of Materials Science and Engineering , Fuzhou University , Fuzhou 350108 , China . ; ;
| | - Rongjian Sa
- Institute of Oceanography , Ocean College , Minjiang University , Fuzhou , Fujian 350108 , China
| | - Liuyi Li
- Key Laboratory of Eco-materials Advanced Technology , College of Materials Science and Engineering , Fuzhou University , Fuzhou 350108 , China . ; ;
| | - Lingyun Li
- Key Laboratory of Eco-materials Advanced Technology , College of Materials Science and Engineering , Fuzhou University , Fuzhou 350108 , China . ; ;
| | - Jinhong Bi
- Key Laboratory of Eco-materials Advanced Technology , College of Materials Science and Engineering , Fuzhou University , Fuzhou 350108 , China . ; ;
- State Key Laboratory of Photocatalysis on Energy and Environment , College of Chemistry , Fuzhou University , Fuzhou 350108 , China
| | - Zizhong Zhang
- State Key Laboratory of Photocatalysis on Energy and Environment , College of Chemistry , Fuzhou University , Fuzhou 350108 , China
| | - Jinlin Long
- State Key Laboratory of Photocatalysis on Energy and Environment , College of Chemistry , Fuzhou University , Fuzhou 350108 , China
| | - Yan Yu
- Key Laboratory of Eco-materials Advanced Technology , College of Materials Science and Engineering , Fuzhou University , Fuzhou 350108 , China . ; ;
| | - Zhigang Zou
- Key Laboratory of Eco-materials Advanced Technology , College of Materials Science and Engineering , Fuzhou University , Fuzhou 350108 , China . ; ;
- Eco-materials and Renewable Energy Research Center , College of Engineering and Applied Sciences , Nanjing University , Nanjing 210093 , China
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19
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Li Z, Yang H, Hu M, Zhang L, Ge S, Cui K, Yu J. Cathode Photoelectrochemical Paper Device for microRNA Detection Based on Cascaded Photoactive Structures and Hemin/Pt Nanoparticle-Decorated DNA Dendrimers. ACS APPLIED MATERIALS & INTERFACES 2020; 12:17177-17184. [PMID: 32193932 DOI: 10.1021/acsami.9b22558] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In this work, a lab-on-paper cathode photoelectrochemical (PEC) sensing platform was constructed for ultrasensitive microRNA-141 (miRNA-141) assay using cascaded multiple photo-active structures as signal generators and hemin/Pt nanoparticle (Pt NP) trunk-branching-decorated DNA dendrimers as signal reinforcers. Specifically, pyramid-like Cu2O was first in situ grown on the Au nanoparticle-functionalized tangled cellulose fibers network, followed by the sensitization of trepang-like BiVO4-Bi2S3 heterostructures, forming the cascaded sensitization structures. Then, the DNA dendrimer was introduced into the photocathode sensing interface by coupling the duplex-specific-nuclease (DSN)-induced target recycling reaction with multiple-branched hybridization chain reaction (MHCR). The programmed target recycling procedures propelled using DSN guaranteed the highly amplified transduction of miRNA-141 to the exposed initiator strand, which triggered the cascaded MHCR accompanied by the formation of the DNA dendrimer with unique trunk-branching structures. Finally, the hemin/Pt NP trunk-branching-decorated DNA dendrimer (HPTD) was acquired by the assembly of Pt NPs and hemin on the trunk and branch, respectively. The resulting HPTD with the synergy catalysis of Pt NPs and hemin could efficiently catalyze the decomposition of H2O2 for in situ generation of O2 as the electron acceptor, leading to an enhanced photocurrent response. Based on the target-dependent photocurrent enhancement, ultrasensitive determination of miRNA-141 was realized with persuasive selectivity, high stability, and excellent reproducibility. Thus, the proposed paper-based cathode PEC sensing platform possessed promising application prospect in clinical miRNA diagnosis.
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Affiliation(s)
- Zhenglin Li
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Hongmei Yang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Mengsu Hu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Lina Zhang
- Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, Jinan 250022, PR China
| | - Shenguang Ge
- Institute for Advanced Interdisciplinary Research, University of Jinan, Jinan 250022, PR China
| | - Kang Cui
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Jinghua Yu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
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20
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Wang H, Qian C, Liu J, Zeng Y, Wang D, Zhou W, Gu L, Wu H, Liu G, Zhao Y. Integrating Suitable Linkage of Covalent Organic Frameworks into Covalently Bridged Inorganic/Organic Hybrids toward Efficient Photocatalysis. J Am Chem Soc 2020; 142:4862-4871. [PMID: 32073853 DOI: 10.1021/jacs.0c00054] [Citation(s) in RCA: 160] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Covalent organic frameworks (COFs) are excellent platforms with tailored functionalities in photocatalysis. There are still challenges in increasing the photochemical performance of COFs. Therefore, we designed and prepared a series of COFs for photocatalytic hydrogen generation. Varying different ratios of β-ketoenamine to imine moieties in the linkages could differ the ordered structure, visible light harvesting, and bandgap. Overall, β-ketoenamine-linked COFs exhibited much better photocatalytic activity than those COFs having both β-ketoenamine and imine moieties on account of a nonquenched excited state and more favorable HOMO level in the photoinduced oxidation reaction from the former. Specifically, after in situ growth of β-ketoenamine-linked COFs onto NH2-Ti3C2Tx MXene via covalent connection, the heterohybrid showed an obvious improvement in photocatalytic H2 evolution because of strong covalent coupling, electrical conductivity, and efficient charge transfer. This integrated linkage evolution and covalent hybridization approach advances the development of COF-based photocatalysts.
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Affiliation(s)
- Hou Wang
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Cheng Qian
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Jia Liu
- Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Yongfei Zeng
- College of Chemistry, Tianjin Normal University, Tianjin 300387, China
| | - Dongdong Wang
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Weiqiang Zhou
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Long Gu
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Hongwei Wu
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Guofeng Liu
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Yanli Zhao
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
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21
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Huang T, Lin X, Liu Y, Zhao J, Lin H, Xu Z, Zhong S, Zhang C, Wang X, Fu X, Long J. Molecular Engineering of Fully Conjugated sp 2 Carbon-Linked Polymers for High-Efficiency Photocatalytic Hydrogen Evolution. CHEMSUSCHEM 2020; 13:672-676. [PMID: 31883308 DOI: 10.1002/cssc.201903334] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 12/25/2019] [Indexed: 06/10/2023]
Abstract
The diverse nature of organic precursors offers a versatile platform for precisely tailoring the electronic properties of semiconducting polymers. In this study, three fully conjugated sp2 carbon-linked polymers have been designed and synthesized for photocatalytic hydrogen evolution under visible-light illumination, by copolymerizing different C3 -symmetric aromatic aldehydes as knots with the 1,4-phenylene diacetonitrile (PDAN) linker through a C=C condensation reaction. The hydrogen evolution (HER) is achieved at a maximum rate of 30.2 mmol g-1 h-1 over a polymer based on 2,4,6-triphenyl-1,3,5-triazine units linked by cyano-substituted phenylene, with an apparent quantum yield (AQY) of 7.20 % at 420 nm. Increasing the degree of conjugation and planarity not only extends visible-light absorption, but also stabilizes the fully conjugated sp2 -carbon-linked donor-acceptor (D-A) polymer. Incorporating additional electron-withdrawing triazine units into the D-A polymer to form multiple electron donors and acceptors can greatly promote exciton separation and charge transfer, thus significantly enhancing the photocatalytic activity.
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Affiliation(s)
- Tao Huang
- State Key Lab of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, P.R. China
| | - Xi Lin
- Department of Chemistry and Chemical Engineering, Minjiang University, Fuzhou, 350108, P.R. China
| | - Yang Liu
- State Key Lab of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, P.R. China
| | - Jiwu Zhao
- State Key Lab of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, P.R. China
| | - Huan Lin
- State Key Lab of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, P.R. China
| | - Ziting Xu
- State Key Lab of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, P.R. China
| | - Shuncong Zhong
- Laboratory of Optics, Terahertz and Nondestructive Testing, School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350108, P.R. China
| | - Chunjie Zhang
- Research Institute of Air Purification Equipment, Shanxi Xinhua Chemical Co., Ltd, Taiyuan, 030008, P.R. China
| | - Xuxu Wang
- State Key Lab of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, P.R. China
| | - Xianzhi Fu
- State Key Lab of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, P.R. China
| | - Jinlin Long
- State Key Lab of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, P.R. China
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