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Yang Y, Peng S, Chen S, Kang F, Fan J, Zhang H, Yu X, Li J, Zhang Q. Pyrene-based covalent organic frameworks (PyCOFs): a review. NANOSCALE HORIZONS 2024. [PMID: 39355898 DOI: 10.1039/d4nh00317a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/03/2024]
Abstract
Recently, pyrene-based covalent organic frameworks (PyCOFs) have aroused great interest because the large planar structure of the pyrene unit could effectively enhance the interlayer π-π interaction and promote the separation and migration of carriers, significantly improving the crystallinity and photoelectrical properties of PyCOFs. Since the first PyCOF-containing boroxate linkage was reported in 2008 by the Yaghi group, many PyCOFs with different kinds of linkages have been reported, exhibiting great potential applications in different fields such as adsorption/separation, chemical sensing, catalysis, energy storage, etc. However, as far as we know, the reviews related to PyCOFs are rare, although PyCOFs have been widely reported to show promising applications. Thus, it is right time and important for us to systematically summarize the research advance in PyCOFs, including the synthesis with different linkages and applications. Moreover, the prospects and obstacles facing the development of PyCOFs are discussed. We hope that this review will provide new insights into PyCOFs that can be explored for more attractive functions or applications.
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Affiliation(s)
- Yao Yang
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430074, China.
| | - Shiqiong Peng
- School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430074, China
| | - Songhua Chen
- College of Chemistry and Material, Longyan University, Longyan 364000, China.
| | - Fangyuan Kang
- Department of Materials Science and Engineering, Department of Chemistry, Center of Super-Diamond and Advanced Films (COSDAF) & Hong Kong Institute of Clean Energy, City University of Hong Kong, 999077 Hong Kong, China.
| | - Jun Fan
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430074, China.
| | - Huan Zhang
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430074, China.
| | - Xianglin Yu
- School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430074, China
| | - Junbo Li
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430074, China.
| | - Qichun Zhang
- Department of Materials Science and Engineering, Department of Chemistry, Center of Super-Diamond and Advanced Films (COSDAF) & Hong Kong Institute of Clean Energy, City University of Hong Kong, 999077 Hong Kong, China.
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2
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Asokan K, Bhagyasree TM, Devasia G, Krishnamurty S, Solim S, Rueda L, Al-Mohannadi DM, Al-Hashimi M, Kakosimos K, Santhosh Babu S. A scalable approach using a gC 3N 4-covalent organic framework hybrid catalyst towards sustainable hydrogen production from seawater and wastewater. Chem Sci 2024; 15:13381-13388. [PMID: 39183933 PMCID: PMC11339968 DOI: 10.1039/d4sc01387e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 07/05/2024] [Indexed: 08/27/2024] Open
Abstract
The photocatalytic generation of H2 using covalent organic frameworks (COFs) is gaining more interest. While numerous reports have focused on the production of H2 from deionized water using COFs, the inability to produce H2 from industrial wastewater or seawater is a common limitation in many reported catalysts. Additionally, many of these reports lack a clear path to scale up the catalyst synthesis. In this study, we explore the prospect of hybridizing a COF with gC3N4 to create a robust photocatalyst for efficient H2 generation. This hybrid exhibits outstanding performance not only in deionized water, but also in wastewater, and simulated seawater. Furthermore, we explore the feasibility of the bulk-scale synthesis and successfully produce a 20 g hybrid catalyst in a single batch, and the synthesis method is scalable to achieve the commercial target. Remarkably, a maximum HER rate of 94 873 μmol g-1 h-1 and 109 125 μmol g-1 h-1 was obtained for the hybrid catalyst from industrial wastewater and simulated seawater, respectively. The performance of bulk-scale batches closely matches that of the small-scale ones. This research paves the way for the utilization of organic photocatalysts on a commercial scale, offering a promising solution for sustainable large-scale H2 production.
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Affiliation(s)
- Kiran Asokan
- Organic Chemistry Division, National Chemical Laboratory (CSIR-NCL) Dr Homi Bhabha Road Pune 411008 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201 002 India
| | - T M Bhagyasree
- Organic Chemistry Division, National Chemical Laboratory (CSIR-NCL) Dr Homi Bhabha Road Pune 411008 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201 002 India
| | - George Devasia
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201 002 India
- Physical and Materials Chemistry Division, National Chemical Laboratory (CSIR-NCL) Dr Homi Bhabha Road Pune 411008 India
| | - Sailaja Krishnamurty
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201 002 India
- Physical and Materials Chemistry Division, National Chemical Laboratory (CSIR-NCL) Dr Homi Bhabha Road Pune 411008 India
| | - Sabah Solim
- Qatar Shell Research & Technology Centre Qatar Science & Technology Park, Education City Doha Qatar
| | - Lina Rueda
- Qatar Shell Research & Technology Centre Qatar Science & Technology Park, Education City Doha Qatar
| | | | | | | | - Sukumaran Santhosh Babu
- Organic Chemistry Division, National Chemical Laboratory (CSIR-NCL) Dr Homi Bhabha Road Pune 411008 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201 002 India
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3
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Kim J, Ling J, Lai Y, Milner PJ. Redox-Active Organic Materials: From Energy Storage to Redox Catalysis. ACS MATERIALS AU 2024; 4:258-273. [PMID: 38737116 PMCID: PMC11083122 DOI: 10.1021/acsmaterialsau.3c00096] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 12/21/2023] [Accepted: 12/22/2023] [Indexed: 05/14/2024]
Abstract
Electroactive materials are central to myriad applications, including energy storage, sensing, and catalysis. Compared to traditional inorganic electrode materials, redox-active organic materials such as porous organic polymers (POPs) and covalent organic frameworks (COFs) are emerging as promising alternatives due to their structural tunability, flexibility, sustainability, and compatibility with a range of electrolytes. Herein, we discuss the challenges and opportunities available for the use of redox-active organic materials in organoelectrochemistry, an emerging area in fine chemical synthesis. In particular, we highlight the utility of organic electrode materials in photoredox catalysis, electrochemical energy storage, and electrocatalysis and point to new directions needed to unlock their potential utility for organic synthesis. This Perspective aims to bring together the organic, electrochemistry, and polymer communities to design new heterogeneous electrocatalysts for the sustainable synthesis of complex molecules.
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Affiliation(s)
- Jaehwan Kim
- Department of Chemistry and
Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Jianheng Ling
- Department of Chemistry and
Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Yihuan Lai
- Department of Chemistry and
Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Phillip J. Milner
- Department of Chemistry and
Chemical Biology, Cornell University, Ithaca, New York 14853, United States
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Ren Y, Xu Y. Recent advances in two-dimensional polymers: synthesis, assembly and energy-related applications. Chem Soc Rev 2024; 53:1823-1869. [PMID: 38192222 DOI: 10.1039/d3cs00782k] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
Two-dimensional polymers (2DPs) are a class of 2D crystalline polymer materials with definite structures, which have outstanding physical-chemical and electronic properties. They cleverly link organic building units through strong covalent bonds and can construct functional 2DPs through reasonable design and selection of different monomer units to meet various application requirements. As promising energy materials, 2DPs have developed rapidly in recent years. This review first introduces the basic overview of 2DPs, such as their historical development, inherent 2D characteristics and diversified topological advantages, followed by the summary of the typical 2DP synthesis methods recently (including "top-down" and "bottom-up" methods). The latest research progress in assembly and processing of 2DPs and the energy-related applications in energy storage and conversion are also discussed. Finally, we summarize and prospect the current research status, existing challenges, and future research directions of 2DPs.
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Affiliation(s)
- Yumei Ren
- School of Engineering, Westlake University, Hangzhou 310024, Zhejiang Province, China.
- School of Materials Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou 450046, China
| | - Yuxi Xu
- School of Engineering, Westlake University, Hangzhou 310024, Zhejiang Province, China.
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Cheng J, Wu Y, Zhang W, Zhang J, Wang L, Zhou M, Fan F, Wu X, Xu H. Fully Conjugated 2D sp 2 Carbon-Linked Covalent Organic Frameworks for Photocatalytic Overall Water Splitting. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2305313. [PMID: 37818737 DOI: 10.1002/adma.202305313] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 08/18/2023] [Indexed: 10/13/2023]
Abstract
Covalent organic frameworks (COFs) hold great promise for solar-driven hydrogen production. However, metal-free COFs for photocatalytic overall water splitting remain elusive, primarily due to challenges in simultaneously regulating their band structures and catalytic sites to enable concurrent half-reactions. Herein, two types of π-conjugated COFs containing the same donor-acceptor structure are constructed via Knoevenagel condensation and Schiff base reaction to afford cyanovinylene- and imine-bridged COFs, respectively. The difference in the linkage leads to a remarkable difference in their photocatalytic activity toward water splitting. The 2D sp2 carbon-linked COF exhibits notable activity for photocatalytic overall water splitting, which can reach an apparent quantum efficiency of 2.53% at 420 nm. In contrast, the 2D imine-linked COF cannot catalyze the overall water-splitting reaction. Mechanistic investigations reveal that the cyanovinylene linkage is essential in modulating the band structure and promoting charge separation in COFs, thereby enabling overall water splitting. Moreover, it is further shown that crystallinity substantially impacts the photocatalytic performance of COFs. This study represents the first successful example of developing metal-free COFs with high crystallinity for photocatalytic overall water splitting.
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Affiliation(s)
- Jun Cheng
- Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Key Laboratory of Precision and Intelligent Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Yuting Wu
- Key Laboratory of Precision and Intelligent Chemistry, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Wei Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Jie Zhang
- State Key Laboratory of Catalysis, Dalian National Laboratory for Chean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, China
| | - Lei Wang
- Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Key Laboratory of Precision and Intelligent Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Meng Zhou
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Fengtao Fan
- State Key Laboratory of Catalysis, Dalian National Laboratory for Chean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, China
| | - Xiaojun Wu
- Key Laboratory of Precision and Intelligent Chemistry, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Hangxun Xu
- Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Key Laboratory of Precision and Intelligent Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
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Wan Y, Sun P, Shi L, Yan X, Zhang X. Three-Dimensional Fully Conjugated Covalent Organic Frameworks for Efficient Photocatalytic Water Splitting. J Phys Chem Lett 2023; 14:7411-7420. [PMID: 37578869 DOI: 10.1021/acs.jpclett.3c01850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2023]
Abstract
Covalent organic frameworks (COFs) are promising photocatalysts for water splitting, but their efficiency lags behind that of inorganic counterparts partly due to the limited charge transport and optical absorption properties. To overcome this limitation, we proposed to employ three-dimensional (3D) fully conjugated (FC) COFs with a topological assembly of cyclooctatetraene derivatives for photocatalytic water splitting. On the basis of first-principles calculations, we demonstrated that these 3D FC-COFs are semiconductors with exceptional charge transport and optical absorption properties. The carrier mobilities are comparable to those of inorganic semiconductors and superior to the record mobility observed in two-dimensional COFs. Additionally, the 3D FC-COFs exhibit broad visible light absorption with direct band gaps and high optical absorption coefficients. Among them, two 3D FC-COFs are identified for overall water splitting, while three others can facilitate the hydrogen evolution half-reaction. This study pioneers the design of 3D FC-COF photocatalysts, potentially advancing their applications in photocatalysis and optoelectronics.
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Affiliation(s)
- Yangyang Wan
- Institute for Advanced Materials, School of Materials Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Pengting Sun
- Institute for Advanced Materials, School of Materials Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Lebin Shi
- Institute for Advanced Materials, School of Materials Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Xiaohong Yan
- Institute for Advanced Materials, School of Materials Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Xu Zhang
- Department of Physics and Astronomy, California State University Northridge, Northridge, California 91330-8268, United States
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Ji H, Li M, Yan G, Qiao D, Dong B, Feng Y, Qu X, Shi J, Zhang X. Thiadiazole-Derived Covalent Organic Framework Macroscopic Ultralight Aerogel. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37487247 DOI: 10.1021/acsami.3c08351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/26/2023]
Abstract
Shaping covalent organic frameworks (COFs) into macroscopic objects for practical application remains a huge challenge. Herein, a new thiadiazole-derived COF macroscopic ultralight aerogel (NNS-VCOF) was prepared through acid-catalyzed aldol condensation between 2,5-dimethyl-1,3,4-thiadiazole and a tritopic aromatic aldehyde derivative. NNS-VCOF aerogel shows extremely low density (ca. 0.020 g cm-3), excellent mechanical properties (compression modulus of 16.65 kPa), thermal insulation properties (low thermal conductivity of 0.03270 W m-1 K-1 at 25 °C), and flame retardancy (quickly self-extinguishing after ignition) due to its three-dimensional sponge-like architecture and special nitrogen heterocyclic framework. To our delight, NNS-VCOF aerogel not only can be used as an outstanding macroscopic material but also shows efficient photocatalytic hydrogen evolution properties in a powder state because of the superhydrophilicity and appropriate optical properties.
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Affiliation(s)
- Haifeng Ji
- Hebei Key Laboratory of Functional Polymers, Department of Polymer Materials and Engineering, Hebei University of Technology, Tianjin 300401, P. R. China
| | - Mengke Li
- Hebei Key Laboratory of Functional Polymers, Department of Polymer Materials and Engineering, Hebei University of Technology, Tianjin 300401, P. R. China
| | - Gaojie Yan
- Hebei Key Laboratory of Functional Polymers, Department of Polymer Materials and Engineering, Hebei University of Technology, Tianjin 300401, P. R. China
| | - Danyang Qiao
- School of Chemistry and Chemical Engineering, Hebei University of Technology, Tianjin 300401, P. R. China
| | - Beibei Dong
- School of Chemistry and Chemical Engineering, Hebei University of Technology, Tianjin 300401, P. R. China
| | - Yi Feng
- Hebei Key Laboratory of Functional Polymers, Department of Polymer Materials and Engineering, Hebei University of Technology, Tianjin 300401, P. R. China
| | - Xiongwei Qu
- Hebei Key Laboratory of Functional Polymers, Department of Polymer Materials and Engineering, Hebei University of Technology, Tianjin 300401, P. R. China
| | - Jingjing Shi
- School of Science, Nantong University, Nantong, Jiangsu 226019, P. R. China
| | - Xiaojie Zhang
- Hebei Key Laboratory of Functional Polymers, Department of Polymer Materials and Engineering, Hebei University of Technology, Tianjin 300401, P. R. China
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Zhang G, Zhao M, Su L, Yu H, Wang C, Sun D, Ding Y. Donor-Acceptor Covalent-Organic Frameworks Based on Phthalimide as an Electron-Deficient Unit for Efficient Visible-Light Catalytic Hydrogen Evolution. ACS APPLIED MATERIALS & INTERFACES 2023; 15:20310-20316. [PMID: 36994986 DOI: 10.1021/acsami.3c00786] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Donor-acceptor two-dimensional covalent-organic frameworks (COFs) have great potential as photocatalysts for hydrogen evolution because of their tunable structures, ordered and strong stacking, high crystallinity, and porosity. Herein, an acceptor unit, namely phthalimide, has been employed for the first time to construct COFs. Two donor-acceptor COFs (TAPFy-PhI and TAPB-PhI) have been successfully synthesized via a Schiff base reaction using phthalimide as the acceptor and 1,3,6,8-tetrakis(4-aminophenyl)pyrene (TAPFy) and 1,3,5-tris(4-aminophenyl)benzene (TAPB) as donors. The synthesized COFs exhibited high crystallinity, permanent porosity, excellent chemical stability, suitable band gaps, and broad visible-light absorption. In the presence of ascorbic acid (sacrificial reagent), the TAPFy-PhI COF exhibited an efficient photocatalytic performance with a hydrogen evolution rate of 1763 μmol g-1 h-1. Moreover, the photocatalytic performance was further improved by the addition of Pt (1 wt %) as a cocatalyst, and the hydrogen evolution rate reached 2718 μmol g-1 h-1.
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Affiliation(s)
- Guobing Zhang
- Special Display and Imaging Technology Innovation Center of Anhui Province, Academy of Optoelectronic Technology, Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, Hefei University of Technology, Hefei 230009, China
- Key Laboratory of Advance Functional Materials and Devices of Anhui Province, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Mingshi Zhao
- Special Display and Imaging Technology Innovation Center of Anhui Province, Academy of Optoelectronic Technology, Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, Hefei University of Technology, Hefei 230009, China
| | - Linghui Su
- Institute of New Energy and Low Carbon Technology, Sichuan University, Chengdu 610065, China
| | - Hao Yu
- Special Display and Imaging Technology Innovation Center of Anhui Province, Academy of Optoelectronic Technology, Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, Hefei University of Technology, Hefei 230009, China
| | - Chenxi Wang
- Key Laboratory of Advance Functional Materials and Devices of Anhui Province, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Dengrong Sun
- College of Carbon Neutrality Future Technology, National Engineering Research Centre for Flue Gas Desulfurization, Carbon Neutral Technology Innovation Center of Sichuan, Sichuan University, Chengdu 610065, China
| | - Yunsheng Ding
- Key Laboratory of Advance Functional Materials and Devices of Anhui Province, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
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Liu H, Zheng X, Xu J, Jia X, Chao M, Wang D, Zhao Y. Structural Regulation of Thiophene-Based Two-Dimensional Covalent Organic Frameworks toward Highly Efficient Photocatalytic Hydrogen Generation. ACS APPLIED MATERIALS & INTERFACES 2023; 15:16794-16800. [PMID: 36946700 DOI: 10.1021/acsami.3c01154] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Two imine-based 2D covalent organic frameworks (COFs) with slight differences in their core structures are presented. The COF containing benzotrithiophene moieties with better planarity and π-conjugation (BTTh-TZ-COF) shows much better photocatalytic activity than the COF with trithienylbenzene cores (TThB-TZ-COF). Further photoelectrochemical study reveals the catalytic mechanism in more detail. Since other factors such as crystallinity, porosity, and optical bandgaps are equal, the different structures of the cores in the two similar COFs are the major contributors to the significantly different photocatalytic performance. The better electron delocalization of the planar trithiophene-based core and the enhanced D-A interactions between the triazine and trithiophene units in BTTh-TZ-COF create efficient charge separation and transfer, thus leading to superior photocatalytic hydrogen evolution activity. A new strategy for preparing high-performance organic photocatalysts for solar-energy conversion is revealed by this study.
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Affiliation(s)
- Hui Liu
- College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Xuhan Zheng
- College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Jie Xu
- College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Xu Jia
- College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Menghuan Chao
- College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Danbo Wang
- College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yingjie Zhao
- College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
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10
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Wang J, Li L, Jiang S, Young DJ, Ren ZG, Li HX. Covalent Grafting of a Nickel Thiolate Catalyst onto Covalent Organic Frameworks for Increased Photocatalytic Activity. CHEMSUSCHEM 2023; 16:e202201943. [PMID: 36478181 DOI: 10.1002/cssc.202201943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 12/02/2022] [Indexed: 06/17/2023]
Abstract
Covalent organic frameworks (COFs) have recently emerged as prospective photoactive materials with noble Pt as a cocatalyst for photocatalytic hydrogen evolution. In this work, a series of SH-group-functionalized covalent organic frameworks, TpPa-1-SH-X, is prepared by reaction of p-phenylenediamine (Pa) and 1,3,5-triformylphloroglucinol (Tp) with p-NH2 C6 H4 SH as a modulating agent. The reaction of TpPa-1-SH-X with NiII acetylacetonate Ni(acac)2 gave nickel thiolate-immobilized TpPa-1 (TpPa-1-SNi-X). The highest hydrogen evolution rate was 10.87 mmol h-1 g-1 , which was an enhancement of 16.47, 3.83, and 1.84 times than that of the parent TpPa-1, covalent-bond-free [(p-NH2 C6 H4 S)2 Ni]n /TpPa-1-SH-10, and 3 wt % Pt-deposited TpPa-1, respectively. This enhanced photocatalytic hydrogen evolution is ascribed to enhanced crystallinity, the use of NiII thiolate as a cocatalyst and covalent bonding between the cocatalyst and TpPa-1.
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Affiliation(s)
- Jixian Wang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123 (R. P., China
| | - Lei Li
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123 (R. P., China
| | - Shan Jiang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123 (R. P., China
| | - David J Young
- College of Engineering, IT and Environment, Charles Darwin University, Darwin, NT-0909, Australia
| | - Zhi-Gang Ren
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123 (R. P., China
| | - Hong-Xi Li
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123 (R. P., China
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11
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Linkage-Affected Donor–Acceptor Covalent Organic Frameworks for Photocatalytic Hydrogen Production. Processes (Basel) 2023. [DOI: 10.3390/pr11020347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
The depletion of traditional fossil energy and the resulting environmental pollution forces people to explore new energy sources. Direct use of solar energy is now a viable solution for solving these problems. Covalent organic frameworks (COFs) are a porous crystalline material; their well-defined two-dimensional or three-dimensional frameworks can ensure the orderly arrangement of photoelectric active units, giving them potential photoelectric conversion applications. The tunable structural features endow COFs many advantages in photocatalytic hydrogen production under visible light. This review comprehensively summarizes the research progress on photoelectronic donor–acceptor (D-A) COFs with tunable structure for photocatalytic hydrogen evolution and will provide a feasible guiding strategy for applying this type of COFs in photocatalytic hydrogen production.
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12
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Praus P. Photocatalytic Nitrogen Fixation using Graphitic Carbon Nitride: A Review. ChemistrySelect 2023. [DOI: 10.1002/slct.202204511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Petr Praus
- Department of Chemistry and Physico-Chemical Processes VSB-Technical University of Ostrava 17. listopadu 15 708 00 Ostrava-Poruba Czech Republic
- Institute of Environmental Technology CEET VSB-Technical University of Ostrava 17. listopadu 15 708 00 Ostrava-Poruba Czech Republic
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13
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Molecular Iodine Capture by Covalent Organic Frameworks. Molecules 2022; 27:molecules27249045. [PMID: 36558178 PMCID: PMC9782534 DOI: 10.3390/molecules27249045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/12/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022] Open
Abstract
The effective capture and storage of volatile molecular iodine from nuclear waste is of great significance. Covalent organic frameworks (COFs) are a class of extended crystalline porous polymers that possess unique architectures with high surface areas, long-range order, and permanent porosity. Substantial efforts have been devoted to the design and synthesis of COF materials for the capture of radioactive iodine. In this review, we first introduce research techniques for determining the mechanism of iodine capture by COF materials. Then, the influencing factors of iodine capture performance are classified, and the design principles and strategies for constructing COFs with potential for iodine capture are summarized on this basis. Finally, our personal insights on remaining challenges and future trends are outlined, in order to bring more inspiration to this hot topic of research.
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Aluminum Cation Doping in Ruddlesden-Popper Sr2TiO4 Enables High-Performance Photocatalytic Hydrogen Evolution. HYDROGEN 2022. [DOI: 10.3390/hydrogen3040032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Hydrogen (H2) is regarded as a promising and renewable energy carrier to achieve a sustainable future. Among the various H2 production routes, photocatalytic water splitting has received particular interest; it strongly relies on the optical and structural properties of photocatalysts such as their sunlight absorption capabilities, carrier transport properties, and amount of oxygen vacancy. Perovskite oxides have been widely investigated as photocatalysts for photocatalytic water splitting to produce H2 because of their distinct optical properties, tunable band gaps and excellent compositional/structural flexibility. Herein, an aluminum cation (Al3+) doping strategy is developed to enhance the photocatalytic performance of Ruddlesden-Popper (RP) Sr2TiO4 perovskite oxides for photocatalytic H2 production. After optimizing the Al3+ substitution concentration, Sr2Ti0.9Al0.1O4 exhibits a superior H2 evolution rate of 331 μmol h−1 g−1, which is ~3 times better than that of Sr2TiO4 under full-range light illumination, due to its enhanced light harvesting capabilities, facilitated charge transfer, and tailored band structure. This work presents a simple and useful Al3+ cation doping strategy to boost the photocatalytic performance of RP-phase perovskites for solar water splitting.
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