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He W, Liu Y, Liu L, Han H, Wang Z, Li Y, Ji D, Shen L, Feng Y, Zhao S, Yang J, Fang Z, Yang Z, Guo K. Photoirradiation-enhanced behavior via morphological manipulation of CoFe 2O 4/g-C 3N 4 heterojunction for supercapacitor and CO 2 reduction. J Colloid Interface Sci 2024; 679:834-845. [PMID: 39395222 DOI: 10.1016/j.jcis.2024.09.211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2024] [Revised: 09/11/2024] [Accepted: 09/26/2024] [Indexed: 10/14/2024]
Abstract
Regulating the morphology of graphitic carbon nitride (g-C3N4, CN) and constructing CoFe2O4/g-C3N4 (CFO/CN) heterojunctions were adopted in the photocatalytic energy storage and photocatalytic CO2 reduction (PCR). CFO/CNS had outstanding light response ability, while CFO/CNT possessed excellent charge transfer ability. Consequently, CFO/CNT electrode exhibited the highest specific capacitance without light, CFO/CNS electrode showed the most obvious photo-enhanced capacitance behavior with an increase by 21.05 % under light. This was ascribed to the generation and separation of photo-generated carriers, promoting oxidation/reduction reactions. And in PCR, the electron consumption rates of four CFO/CN heterojunctions were CFO/CNT > CFO/BCN > CFO/MCN > CFO/CNS. CFO/CNT presented the highest photocatalytic activity, attributing to the strong redox ability and photo-enhanced electron transfer. This strategy of utilizing CFO/CN heterojunctions to construct photo-enhanced supercapacitor electrodes and photocatalytic CO2 reduction catalysts provided new ideas for energy conversion and storage.
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Affiliation(s)
- Wei He
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, PR China; State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, Jiangsu 210009, PR China.
| | - Yingpei Liu
- College of Engineering, China Pharmaceutical University, Nanjing, Jiangsu 211198, PR China
| | - Liang Liu
- College of Engineering, China Pharmaceutical University, Nanjing, Jiangsu 211198, PR China
| | - Huimin Han
- College of Engineering, China Pharmaceutical University, Nanjing, Jiangsu 211198, PR China
| | - Zhixiang Wang
- College of Engineering, China Pharmaceutical University, Nanjing, Jiangsu 211198, PR China
| | - Yuguang Li
- Institute of Nanjing Advanced Biomaterials & Processing Equipment, Nanjing, Jiangsu 211299, PR China
| | - Dong Ji
- Institute of Nanjing Advanced Biomaterials & Processing Equipment, Nanjing, Jiangsu 211299, PR China
| | - Lei Shen
- Institute of Nanjing Advanced Biomaterials & Processing Equipment, Nanjing, Jiangsu 211299, PR China
| | - Yirong Feng
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, PR China
| | - Shuangfei Zhao
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, PR China
| | - Jiming Yang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, PR China
| | - Zheng Fang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, PR China; State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, Jiangsu 210009, PR China
| | - Zhao Yang
- College of Engineering, China Pharmaceutical University, Nanjing, Jiangsu 211198, PR China
| | - Kai Guo
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, PR China; State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, Jiangsu 210009, PR China.
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Zhang F, Liu L, Chen Y, Liu G, Eric Hu X, Wang N, Long B, Deng GJ, Song T. Photoselectively modulating main products by changing the wavelength of visible light over D-π-A-D conjugated polymers. J Colloid Interface Sci 2024; 670:676-686. [PMID: 38781656 DOI: 10.1016/j.jcis.2024.05.116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 05/14/2024] [Accepted: 05/15/2024] [Indexed: 05/25/2024]
Abstract
The diversity of catalytic products determines the difficulty of selective product modulation, which usually relies on adjusting the catalyst and reaction conditions to obtain different main products selectively. Herein, we synthesized D-π-A-D conjugated organic polymers (TH-COP) using cyclotriphosphonitrile, alkyne, 2H-benzimidazole, and sulfur units as electron donors, π bridges, electron acceptors, and electron donors, respectively. TH-COP exhibited excellent photoinduced carrier separation and redox ability under different visible light wavelengths, and the main products of its CO2 reduction are CH4 (1000.0 μmol g-1) and CO (837.0 μmol g-1) under 400-420 nm and 420-560 nm, respectively. In addition, TH-COP could completely convert phenylmethyl sulfide to methyl phenyl sulfone at 400-420 nm and diphenyl disulfide at 480-485 nm in yields up to 95 %. This study presents a novel strategy for the targeted fabrication of various main products using conjugated polymers by simply changing the wavelength range of visible light.
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Affiliation(s)
- Fengxuan Zhang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, PR China
| | - Linyi Liu
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, PR China
| | - Yizheng Chen
- Hunan Provincial Key Laboratory of Environmental Catalysis and Waste Recycling, College of Materials and Chemical Engineering, Hunan Institute of Engineering, Xiangtan 411104, PR China
| | - Guanhui Liu
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, PR China
| | - Xiayi Eric Hu
- College of Chemical Engineering, Xiangtan University, Xiangtan, 411105, PR China
| | - Nailiang Wang
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan, Ningxia 750021, PR China
| | - Bei Long
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, PR China
| | - Guo-Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, PR China; School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, PR China
| | - Ting Song
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, PR China.
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3
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Liu ML, Chen Y, Hu C, Zhang CX, Fu ZJ, Xu Z, Lee YM, Sun SP. Microporous membrane with ionized sub-nanochannels enabling highly selective monovalent and divalent anion separation. Nat Commun 2024; 15:7271. [PMID: 39179599 PMCID: PMC11344077 DOI: 10.1038/s41467-024-51540-1] [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: 05/30/2024] [Accepted: 08/09/2024] [Indexed: 08/26/2024] Open
Abstract
Membranes tailored for selective ion transport represent a promising avenue toward enhancing sustainability across various fields including water treatment, resource recovery, and energy conversion and storage. While nanochannels formed by polymers of intrinsic microporosity (PIM) offer a compelling solution with their uniform and durable nanometer-sized pores, their effectiveness is hindered by limited interactions between ions and nanochannel. Herein, we introduce the randomly twisted V-shaped structure of Tröger's Base unit and quaternary ammonium groups to construct ionized sub-nanochannel with a window size of 5.89-6.54 Å between anion hydration and Stokes diameter, which enhanced the dehydrated monovalent ion transport. Combining the size sieving and electrostatic interaction effects, sub-nanochannel membranes achieved exceptional ion selectivity of 106 for Cl-/CO32- and 82 for Cl-/SO42-, significantly surpassing the state-of-the-art membranes. This work provides an efficient template for creating functionalized sub-nanometer channels in PIM membranes, and paves the way for the development of precise ion separation applications.
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Affiliation(s)
- Mei-Ling Liu
- State Key Laboratories of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membranes, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, China
- NJTECH University Suzhou Future Membrane Technology Innovation Center, Suzhou, 215100, China
| | - Yu Chen
- State Key Laboratories of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membranes, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Chuan Hu
- Department of Energy Engineering, College of Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Chun-Xu Zhang
- State Key Laboratories of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membranes, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Zheng-Jun Fu
- State Key Laboratories of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membranes, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Zhijun Xu
- State Key Laboratories of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membranes, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Young Moo Lee
- Department of Energy Engineering, College of Engineering, Hanyang University, Seoul, 04763, Republic of Korea.
| | - Shi-Peng Sun
- State Key Laboratories of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membranes, College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, China.
- NJTECH University Suzhou Future Membrane Technology Innovation Center, Suzhou, 215100, China.
- Suzhou Laboratory, Suzhou, 215100, China.
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4
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Xiao Y, Wang Z, Li M, Liu Q, Liu X, Wang Y. Efficient Charge Separation in Ag/PCN/UPDI Ternary Heterojunction for Optimized Photothermal-Photocatalytic Performance via Tandem Electric Fields. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2306692. [PMID: 38773907 DOI: 10.1002/smll.202306692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 10/17/2023] [Indexed: 05/24/2024]
Abstract
Charge separation driven by the internal electric field is a research hotspot in photocatalysis. However, it remains challenging to accurately control the electric field to continuously accelerate the charge transfer. Herein, a strategy of constructing a tandem electric field to continuously accelerate charge transfer in photocatalysts is proposed. The plasma electric field, interface electric field, and intramolecular electric field are integrated into the Ag/g-C3N4/urea perylene imide (Ag/PCN/UPDI) ternary heterojunction to achieve faster charge separation and longer carrier lifetime. The triple electric fields function as three accelerators on the charge transport path, promoting the separation of electron-hole pairs, accelerating charge transfer, enhancing light absorption, and increasing the concentration of energetic electrons on the catalyst. The H2 evolution rate of Ag/PCN/UPDI is 16.8 times higher than that of pristine PDI, while the degradation rate of oxytetracycline is increased by 4.5 times. This new strategy will provide a groundbreaking idea for the development of high-efficiency photocatalysts.
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Affiliation(s)
- Yawei Xiao
- National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming, 6500504, China
| | - Zhezhe Wang
- National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming, 6500504, China
| | - Mengyao Li
- National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming, 6500504, China
| | - Qian Liu
- Institute for Advanced Study, Chengdu University, Chengdu, Sichuan, 610106, China
| | - Xijun Liu
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China
| | - Yude Wang
- Yunnan Key Laboratory of Carbon Neutrality and Green Low-carbon Technologies, Yunnan University, Kunming, 650504, China
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5
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Xiao Y, Li H, Yao B, Xiao K, Wang Y. Hollow g-C 3N 4@Ag 3PO 4 Core-Shell Nanoreactor Loaded with Au Nanoparticles: Boosting Photothermal Catalysis in Confined Space. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2308032. [PMID: 38801010 DOI: 10.1002/smll.202308032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 10/31/2023] [Indexed: 05/29/2024]
Abstract
Low solar energy utilization efficiency and serious charge recombination remain major challenges for photocatalytic systems. Herein, a hollow core-shell Au/g-C3N4@Ag3PO4 photothermal nanoreactor is successfully prepared by a two-step deposition method. Benefit from efficient spectral utilization and fast charge separation induced by the unique hollow core-shell heterostructure, the H2 evolution rate of Au/g-C3N4@Ag3PO4 is 16.9 times that of the pristine g-C3N4, and the degradation efficiency of tetracycline is increased by 88.1%. The enhanced catalytic performance can be attributed to the ordered charge movement on the hollow core-shell structure and a local high-temperature environment, which effectively accelerates the carrier separation and chemical reaction kinetics. This work highlights the important role of the space confinement effect in photothermal catalysis and provides a promising strategy for the development of the next generation of highly efficient photothermal catalysts.
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Affiliation(s)
- Yawei Xiao
- National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming, 6500504, P. R. China
| | - Haoyu Li
- National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming, 6500504, P. R. China
| | - Bo Yao
- National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming, 6500504, P. R. China
| | - Kai Xiao
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Yude Wang
- National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming, 6500504, P. R. China
- Yunnan Key Laboratory of Carbon Neutrality and Green Low-carbon Technologies, Yunnan University, Kunming, 650504, P. R. China
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6
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Yang N, Yan W, Zhou ZJ, Tian C, Zhang P, Liu H, Wu XP, Xia C, Dai S, Zhu X. Synthetic Leaves Based on Crystalline Olefin-Linked Covalent Organic Frameworks for Efficient CO 2 Photoreduction with Water. NANO LETTERS 2024; 24:5444-5452. [PMID: 38639448 DOI: 10.1021/acs.nanolett.4c00343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
We report, for the first time, a new synthetic strategy for the preparation of crystalline two-dimensional olefin-linked covalent organic frameworks (COFs) based on aldol condensation between benzodifurandione and aromatic aldehydes. Olefin-linked COFs can be facilely crystallized through either a pyridine-promoted solvothermal process or a benzoic anhydride-mediated organic flux synthesis. The resultant COF leaf with high in-plane π-conjugation exhibits efficient visible-light-driven photoreduction of carbon dioxide (CO2) with water (H2O) in the absence of any photosensitizer, sacrificial agents, or cocatalysts. The production rate of carbon monoxide (CO) reaches as high as 158.1 μmol g-1 h-1 with near 100% CO selectivity, which is accompanied by the oxidation of H2O to oxygen. Both theoretical and experimental results confirm that the key lies in achieving exceptional photoinduced charge separation and low exciton binding. We anticipate that our findings will facilitate new possibilities for the development of semiconducting COFs with structural diversity and functional variability.
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Affiliation(s)
- Na Yang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Wenkai Yan
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Zi-Jian Zhou
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Centre for Computational Chemistry and Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Chengcheng Tian
- School of Resources and Environment Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Peng Zhang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Honglai Liu
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xin-Ping Wu
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Centre for Computational Chemistry and Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Chungu Xia
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Sheng Dai
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Xiang Zhu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
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Karatayeva U, Al Siyabi SA, Brahma Narzary B, Baker BC, Faul CFJ. Conjugated Microporous Polymers for Catalytic CO 2 Conversion. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2308228. [PMID: 38326090 PMCID: PMC11005716 DOI: 10.1002/advs.202308228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Indexed: 02/09/2024]
Abstract
Rising carbon dioxide (CO2) levels in the atmosphere are recognized as a threat to atmospheric stability and life. Although this greenhouse gas is being produced on a large scale, there are solutions to reduction and indeed utilization of the gas. Many of these solutions involve costly or unstable technologies, such as air-sensitive metal-organic frameworks (MOFs) for CO2 capture or "non-green" systems such as amine scrubbing. Conjugated microporous polymers (CMPs) represent a simpler, cheaper, and greener solution to CO2 capture and utilization. They are often easy to synthesize at scale (a one pot reaction in many cases), chemically and thermally stable (especially in comparison with their MOF and covalent organic framework (COF) counterparts, owing to their amorphous nature), and, as a result, cheap to manufacture. Furthermore, their large surface areas, tunable porous frameworks and chemical structures mean they are reported as highly efficient CO2 capture motifs. In addition, they provide a dual pathway to utilize captured CO2 via chemical conversion or electrochemical reduction into industrially valuable products. Recent studies show that all these attractive properties can be realized in metal-free CMPs, presenting a truly green option. The promising results in these two fields of CMP applications are reviewed and explored here.
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Xiang G, Xu W, Zhuge W, Huang Q, Zhang C, Peng J. A Tröger's base-linked aluminium phthalocyanine polymer for discriminative electrochemical sensing of the antibiotic isoniazid. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:1012-1020. [PMID: 38304962 DOI: 10.1039/d3ay02298f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
Isoniazid is a first-line drug used to treat tuberculosis. However, its excessive use can lead to serious adverse effects. Thus, strict monitoring of the isoniazid levels in medications and human systems is required. In this study, a new polymer (AlPc-TB POP) containing a metal phthalocyanine and Tröger's base was synthesized and explored as an electrocatalyst for the oxidation of isoniazid. The results indicated that the polymer is an excellent electron-transfer medium for isoniazid oxidation. The AlPc-TB POP-based sensor quantified isoniazid in the linear range of 0.1-130 μM, with a detection limit of 0.0185 μM. The response of the developed sensor to isoniazid was reproducible and stable. Furthermore, this method can accurately determine isoniazid levels by ignoring the influence of common interfering species in tablets and biological samples. This study contributes to the development of nitrogen-rich porous organic polymers and offers a novel strategy for addressing challenges in disease therapeutic efficacy and public safety monitoring.
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Affiliation(s)
- Gang Xiang
- College of Chemical and Biological Engineering, Guangxi Normal University for Nationalities, Chongzuo, 532200, China.
- Photochemical Sensing and Regional Environmental Analysis Laboratory, Guangxi Normal University for Nationalities, Chongzuo, 532200, China
| | - Wensi Xu
- School of Pharmacy, Henan University of Traditional Chinese Medicine, Zhengzhou, 450046, China
| | - Wenfeng Zhuge
- College of Chemical and Biological Engineering, Guangxi Normal University for Nationalities, Chongzuo, 532200, China.
- Photochemical Sensing and Regional Environmental Analysis Laboratory, Guangxi Normal University for Nationalities, Chongzuo, 532200, China
| | - Qing Huang
- College of Chemical and Biological Engineering, Guangxi Normal University for Nationalities, Chongzuo, 532200, China.
- Photochemical Sensing and Regional Environmental Analysis Laboratory, Guangxi Normal University for Nationalities, Chongzuo, 532200, China
| | - Cuizhong Zhang
- College of Chemical and Biological Engineering, Guangxi Normal University for Nationalities, Chongzuo, 532200, China.
- Photochemical Sensing and Regional Environmental Analysis Laboratory, Guangxi Normal University for Nationalities, Chongzuo, 532200, China
| | - Jinyun Peng
- College of Chemical and Biological Engineering, Guangxi Normal University for Nationalities, Chongzuo, 532200, China.
- Photochemical Sensing and Regional Environmental Analysis Laboratory, Guangxi Normal University for Nationalities, Chongzuo, 532200, China
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Yang L, Yan W, Yang N, Wang G, Bi Y, Tian C, Liu H, Zhu X. Regulating π-Conjugation in sp 2 -Carbon-Linked Covalent Organic Frameworks for Efficient Metal-Free CO 2 Photoreduction with H 2 O. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2208118. [PMID: 36965021 DOI: 10.1002/smll.202208118] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 03/01/2023] [Indexed: 06/18/2023]
Abstract
The development of sp2 -carbon-linked covalent organic frameworks (sp2 c-COFs) as artificial photocatalysts for solar-driven conversion of CO2 into chemical feedstock has captured growing attention, but catalytic performance has been significantly limited by their intrinsic organic linkages. Here, a simple, yet efficient approach is reported to improve the CO2 photoreduction on metal-free sp2 c-COFs by rationally regulating their intrinsic π-conjugation. The incorporation of ethynyl groups into conjugated skeletons affords a significant improvement in π-conjugation and facilitates the photogenerated charge separation and transfer, thereby boosting the CO2 photoreduction in a solid-gas mode with only water vapor and CO2 . The resultant CO production rate reaches as high as 382.0 µmol g-1 h-1 , ranking at the top among all additive-free CO2 photoreduction catalysts. The simple modulation approach not only enables to achieve enhanced CO2 reduction performance but also simultaneously gives a rise to extend the understanding of structure-property relationship and offer new possibilities for the development of new π-conjugated COF-based artificial photocatalysts.
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Affiliation(s)
- Lan Yang
- State Key Laboratory of Chemical Engineering, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Wenkai Yan
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
| | - Na Yang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Suzhou, 215000, P. R. China
| | - Guofeng Wang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Suzhou, 215000, P. R. China
| | - Yingpu Bi
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
| | - Chengcheng Tian
- School of Resources and Environment Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Honglai Liu
- State Key Laboratory of Chemical Engineering, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Xiang Zhu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Suzhou, 215000, P. R. China
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