1
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Chu H, Liu Z, Wang CC, Wang P. Sustainable production and applications of metal-organic frameworks. Chem Commun (Camb) 2024. [PMID: 39028126 DOI: 10.1039/d4cc02063d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
Metal-organic frameworks (MOFs) have become a hot spot in the area of functional materials and have undergone rapid development in a wide range of fields in the 21st century. However, the scalable application of MOFs is still constrained by high production cost at the front end. Additionally, systematic discussion of the reuse of spent MOFs is lacking. Encouragingly, an increasing number of studies have been focusing on the low-cost production and recycling of MOF-based materials, providing feasible solutions for resource recovery and reduction. To stimulate future enthusiasm and interest in realizing the blue economy of MOFs, ranging from front-end production to terminal disposal, we have presented and summarized the state-of-the-art progress in the sustainable synthesis, separation, and reuse of MOFs. Based on the existing challenges, we also propose fit-for-purpose future directions in the MOF field to move toward blue economy.
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Affiliation(s)
- Hongyu Chu
- Beijing Key Laboratory of Functional Materials for Building Structure and Environment Remediation, School of Environment and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China.
| | - Zhengxing Liu
- Beijing Key Laboratory of Functional Materials for Building Structure and Environment Remediation, School of Environment and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China.
| | - Chong-Chen Wang
- Beijing Key Laboratory of Functional Materials for Building Structure and Environment Remediation, School of Environment and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China.
| | - Peng Wang
- Beijing Key Laboratory of Functional Materials for Building Structure and Environment Remediation, School of Environment and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China.
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2
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Zhong L, Feng X, Zhang Q, Xie X, Luo F. An imidazole-based covalent-organic framework enabling a super-efficiency in sunlight-driven uranium extraction from seawater. Chem Sci 2024; 15:10882-10891. [PMID: 39027273 PMCID: PMC11253174 DOI: 10.1039/d4sc02554g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Accepted: 06/06/2024] [Indexed: 07/20/2024] Open
Abstract
Uranium extraction from seawater represents an effective way to solve the difficulty of the insufficient uranium supply chain. However, this route is still restricted by the low extraction efficiency of reported adsorbents. Here, we find that reversing the donor-acceptor in imidazole-based COFs (covalent-organic frameworks) would be effective for enhancing the extraction efficiency of uranium. As a result, the TI-COF is found to enable a uranium extraction efficiency up to 8.8 mg g-1 day-1 from seawater under visible light irradiation, exceeding all established adsorbents for such use, and an unprecedented uranium extraction efficiency up to 6.9 mg g-1 day-1 from seawater under natural sunlight.
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Affiliation(s)
- Lizhen Zhong
- School of Chemistry and Materials Science, East China University of Technology Nanchang 330013 China
| | - Xuefeng Feng
- School of Chemistry and Materials Science, East China University of Technology Nanchang 330013 China
| | - Qingyun Zhang
- School of Chemistry and Materials Science, East China University of Technology Nanchang 330013 China
| | - Xianqing Xie
- National Engineering Research Center for Carbohydrate Synthesis, Jiangxi Normal University Nanchang 330027 China
| | - Feng Luo
- School of Chemistry and Materials Science, East China University of Technology Nanchang 330013 China
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3
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Gregg ST, Nze RP, Yuan Q, He S, Xie T, Xiao B. UV Light-Driven Nitric Oxide Release from Porous Nitrogen Heterocyclic Polymers. Macromol Rapid Commun 2024:e2400142. [PMID: 38934622 DOI: 10.1002/marc.202400142] [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: 03/12/2024] [Revised: 06/07/2024] [Indexed: 06/28/2024]
Abstract
In this study, porous polymers with nitrogen heterocyclic core structures are synthesized through the condensation of enaminonitrile and terephthalaldehyde monomers. These polymers are used as a platform to store bioactive nitric oxide (NO) and control its release. NO loading is achieved by nitrosating the polymers with acidified nitrite, a process that also imparts photoresponsivity to the polymers. Polymer composition and porosity affect NO storage and release. It is observed that under UV light at 365 nm in a PBS solution, the polymers (NO@DHP-POP) can release NO in a manner fully controlled by UV lighting. Under experimental conditions, these porous polymers release NO at a rate of ≈10.0-50.0 µmol g-1 over 60 min. These findings demonstrate the potential of these polymers for integrating NO delivery into phototherapy applications.
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Affiliation(s)
- Sharon T Gregg
- School of Chemistry and Chemical Engineering, Queen's University of Belfast, David Keir Building, Stranmillis Road, Belfast, BT9 5AG, UK
| | - René-Ponce Nze
- School of Chemistry and Chemical Engineering, Queen's University of Belfast, David Keir Building, Stranmillis Road, Belfast, BT9 5AG, UK
| | - Qingchun Yuan
- Chemical Engineering and Applied Chemistry, Aston University, Birmingham, B4 7ET, UK
| | - Su He
- School of Chemistry and Chemical Engineering, Queen's University of Belfast, David Keir Building, Stranmillis Road, Belfast, BT9 5AG, UK
| | - Tianchao Xie
- School of Chemistry and Chemical Engineering, Queen's University of Belfast, David Keir Building, Stranmillis Road, Belfast, BT9 5AG, UK
| | - Bo Xiao
- School of Chemistry and Chemical Engineering, Queen's University of Belfast, David Keir Building, Stranmillis Road, Belfast, BT9 5AG, UK
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4
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Mei A, Guo H, Zhang W, Liu Y, Chen W. Regulating Water Adsorption Sites of Keto-Enamine COF by Base Exfoliation and Deprotonation for Enhanced Humidity Response. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2403521. [PMID: 39031831 DOI: 10.1002/smll.202403521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 06/11/2024] [Indexed: 07/22/2024]
Abstract
Covalent organic framework (COF) has received much attention owing to its unique framework structure formed by diverse organic units. However, challenges, including low conductivity, structure instability, and limited control of adsorption and desorption processes, stimulate the modification of COF in electronic sensors. Herein, inspired by the alterable structure of COF in different solvents, a facile base exfoliation and deprotonation method is proposed to regulate the water adsorption sites and improve the intrinsic conductivity of TpPa-1 COF. TpPa-1 COF powders are exfoliated to nanosheets to increase water adsorption, while the deprotonation is utilized to adjust the affinity of water molecules on TpPa-1 COF framework, contributing to water accumulation in the 1D pores. The as-fabricated TpPa-1 COF sensor exhibits a decreased recovery time from 419 to 49 s, forming a linear relation between relative humidity (RH) value and humidity response. The excellent chemical stability of the covalent bond of TpPa-1 COF contributes to the excellent stable device performance in 30 days, promoting further integration and data analysis in respiration monitoring.
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Affiliation(s)
- Aohan Mei
- State Key Laboratory of Silicate Materials for Architectures, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Hongbing Guo
- State Key Laboratory of Silicate Materials for Architectures, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Wenyuan Zhang
- State Key Laboratory of Silicate Materials for Architectures, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Yueli Liu
- State Key Laboratory of Silicate Materials for Architectures, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, P. R. China
- Sanya Science and Education Innovation Park, Wuhan University of Technology, Sanya, 572024, P. R. China
| | - Wen Chen
- Sanya Science and Education Innovation Park, Wuhan University of Technology, Sanya, 572024, P. R. China
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, P. R. China
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5
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Sale H, Ertekin Z, Lalaguna PL, Kadodwala M, Symes MD. Evaluating the native oxide of titanium as an electrocatalyst for oxalic acid reduction. Chem Commun (Camb) 2024; 60:6003-6006. [PMID: 38787718 DOI: 10.1039/d4cc01176g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2024]
Abstract
Herein, we show that unmodified titanium electrodes bearing the naturally-forming native TixOy coating display superior activity for the electroreduction of oxalic acid to glyoxylic acid and glycolic acid compared to Ti-based electrodes that have been deliberately modified for this purpose, in terms of both oxalic acid conversion and overall yields of reduced products.
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Affiliation(s)
- Halilu Sale
- School of Chemistry, University of Glasgow, G12 8QQ Glasgow, UK.
- Energy Commission of Nigeria, Plot 701c, Garki-Abuja, Nigeria
| | - Zeliha Ertekin
- School of Chemistry, University of Glasgow, G12 8QQ Glasgow, UK.
- Hacettepe University, Faculty of Science, Department of Chemistry, Beytepe, 06800 Ankara, Turkey
| | - Paula L Lalaguna
- School of Chemistry, University of Glasgow, G12 8QQ Glasgow, UK.
| | | | - Mark D Symes
- School of Chemistry, University of Glasgow, G12 8QQ Glasgow, UK.
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6
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Liu S, Yang H, Zhang Y, Wang F, Qin Q, Wang D, Huang C, Zhang YY. Robust cooperative of cadmium sulfide with highly ordered hollow microstructure coordination polymers for regulating the photocatalytic performance. J Colloid Interface Sci 2024; 663:919-929. [PMID: 38447406 DOI: 10.1016/j.jcis.2024.02.220] [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: 11/28/2023] [Revised: 02/26/2024] [Accepted: 02/29/2024] [Indexed: 03/08/2024]
Abstract
Accurately controlling and achieving selective reactivity at difficult-to-access reaction sites in organic molecules is challenging owing to the similar local and electronic environments of multiple reaction sites. In this work, we regulated multiple reaction sites in a highly selective and active manner using cobalt coordination polymers (Co-CP) 1 and 1a with various particle sizes and morphologies ranging from large granular to ordered hollow hemispheres by introducing sodium dodecyl sulfate (SDS) as a surfactant. The size and morphology of the catalysts could be tuned by controlling the amount of SDS. An SDS concentration of 0.03 mmol generated 1a having a highly ordered hollow hemispherical microstructure with a well-defined platform as a pre-made building unit. Cadmium sulfide (CdS), as a typical photocatalyst, was subsequently uniformly anchored in-situ on the premade building unit 1a to produce CdS@1a composites, that inherited the originally ordered hollow hemispherical microstructure while integrating CdS as well-dispersed catalytic active sites. Furthermore, the well-established CdS@1a composites were used as photocatalysts in selective oxidation reactions under air atmosphere with blue irradiation. The CdS0.109@1a composite with unique structural characteristics, including uniformly distributed and easily accessible catalytic sites and excellent photoelectrochemical performance, served as a highly efficient heterogeneous photocatalyst for promoting the selective oxidation of sulfides to sulfoxides as the sole products. This work presents an approach for fabricating CPs as premade building units that function as well-defined platforms for integration with photocatalysts, enabling tuning of the structure-selectivity-activity relationships.
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Affiliation(s)
- Saiwei Liu
- Center for Advanced Materials Research and Henan Key Laboratory of Functional Salt Materials, Zhongyuan University of Technology, Zhengzhou 450007, China; School of Materials and Chemical Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China
| | - Haiyan Yang
- Center for Advanced Materials Research and Henan Key Laboratory of Functional Salt Materials, Zhongyuan University of Technology, Zhengzhou 450007, China; School of Materials and Chemical Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China.
| | - Yue Zhang
- Center for Advanced Materials Research and Henan Key Laboratory of Functional Salt Materials, Zhongyuan University of Technology, Zhengzhou 450007, China; School of Materials and Chemical Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China
| | - Fei Wang
- Center for Advanced Materials Research and Henan Key Laboratory of Functional Salt Materials, Zhongyuan University of Technology, Zhengzhou 450007, China; School of Materials and Chemical Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China
| | - Qi Qin
- School of Materials and Chemical Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China
| | - Dandan Wang
- School of Materials and Chemical Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China
| | - Chao Huang
- Center for Advanced Materials Research and Henan Key Laboratory of Functional Salt Materials, Zhongyuan University of Technology, Zhengzhou 450007, China.
| | - Ying-Ying Zhang
- Center for Advanced Materials Research and Henan Key Laboratory of Functional Salt Materials, Zhongyuan University of Technology, Zhengzhou 450007, China.
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7
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Yu H, Zhang F, Chen Q, Zhou PK, Xing W, Wang S, Zhang G, Jiang Y, Chen X. Vinyl-Group-Anchored Covalent Organic Framework for Promoting the Photocatalytic Generation of Hydrogen Peroxide. Angew Chem Int Ed Engl 2024; 63:e202402297. [PMID: 38488772 DOI: 10.1002/anie.202402297] [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: 02/01/2024] [Indexed: 04/17/2024]
Abstract
The artificial photosynthesis of H2O2 from water and oxygen using semiconductor photocatalysts is attracting increasing levels of attention owing to its green, environmentally friendly, and energy-saving characteristics. Although covalent organic frameworks (COFs) are promising materials for promoting photocatalytic H2O2 production owing to their structural and functional diversity, they typically suffer from low charge-generation and -transfer efficiencies as well as rapid charge recombination, which restricts their use as catalysts for photocatalytic H2O2 production. Herein, we report a strategy for anchoring vinyl moieties to a COF skeleton to facilitate charge separation and migration, thereby promoting photocatalytic H2O2 generation. This vinyl-group-bearing COF photocatalyst exhibits a H2O2-production rate of 84.5 μmol h-1 (per 10 mg), which is ten-times higher than that of the analog devoid of vinyl functionality and superior to most reported COF photocatalysts. Both experimental and theoretical studies provide deep insight into the origin of the improved photocatalytic performance. These findings are expected to facilitate the rational design and modification of organic semiconductors for use in photocatalytic applications.
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Affiliation(s)
- Hong Yu
- State Key Laboratory of Photocatalysis on Energy and Environment, and Key Laboratory of Molecular Synthesis and Function Discovery, College of Chemistry, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Fengtao Zhang
- State Key Laboratory of Photocatalysis on Energy and Environment, and Key Laboratory of Molecular Synthesis and Function Discovery, College of Chemistry, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Qian Chen
- State Key Laboratory of Photocatalysis on Energy and Environment, and Key Laboratory of Molecular Synthesis and Function Discovery, College of Chemistry, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Pan-Ke Zhou
- State Key Laboratory of Photocatalysis on Energy and Environment, and Key Laboratory of Molecular Synthesis and Function Discovery, College of Chemistry, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Wandong Xing
- State Key Laboratory of Photocatalysis on Energy and Environment, and Key Laboratory of Molecular Synthesis and Function Discovery, College of Chemistry, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Sibo Wang
- State Key Laboratory of Photocatalysis on Energy and Environment, and Key Laboratory of Molecular Synthesis and Function Discovery, College of Chemistry, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Guigang Zhang
- State Key Laboratory of Photocatalysis on Energy and Environment, and Key Laboratory of Molecular Synthesis and Function Discovery, College of Chemistry, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Yi Jiang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, P. R. China
| | - Xiong Chen
- State Key Laboratory of Photocatalysis on Energy and Environment, and Key Laboratory of Molecular Synthesis and Function Discovery, College of Chemistry, Fuzhou University, Fuzhou, 350116, P. R. China
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8
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Zhou PK, Li Y, Zeng T, Chee MY, Huang Y, Yu Z, Yu H, Yu H, Huang W, Chen X. One-Dimensional Covalent Organic Framework-Based Multilevel Memristors for Neuromorphic Computing. Angew Chem Int Ed Engl 2024; 63:e202402911. [PMID: 38511343 DOI: 10.1002/anie.202402911] [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: 02/08/2024] [Revised: 03/08/2024] [Accepted: 03/21/2024] [Indexed: 03/22/2024]
Abstract
Memristors are essential components of neuromorphic systems that mimic the synaptic plasticity observed in biological neurons. In this study, a novel approach employing one-dimensional covalent organic framework (1D COF) films was explored to enhance the performance of memristors. The unique structural and electronic properties of two 1D COF films (COF-4,4'-methylenedianiline (MDA) and COF-4,4'-oxydianiline (ODA)) offer advantages for multilevel resistive switching, which is a key feature in neuromorphic computing applications. By further introducing a TiO2 layer on the COF-ODA film, a built-in electric field between the COF-TiO2 interfaces could be generated, demonstrating the feasibility of utilizing COFs as a platform for constructing memristors with tunable resistive states. The 1D nanochannels of these COF structures contributed to the efficient modulation of electrical conductance, enabling precise control over synaptic weights in neuromorphic circuits. This study also investigated the potential of these COF-based memristors to achieve energy-efficient and high-density memory devices.
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Affiliation(s)
- Pan-Ke Zhou
- State Key Laboratory of Photocatalysis on Energy and Environment, and Key Laboratory of Molecular Synthesis and Function Discovery, College of Chemistry, Fuzhou University, Fujian, 350108, China
| | - Yiping Li
- State Key Laboratory of Photocatalysis on Energy and Environment, and Key Laboratory of Molecular Synthesis and Function Discovery, College of Chemistry, Fuzhou University, Fujian, 350108, China
| | - Tao Zeng
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117575, Singapore
| | - Mun Yin Chee
- School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
| | - Yuxing Huang
- State Key Laboratory of Photocatalysis on Energy and Environment, and Key Laboratory of Molecular Synthesis and Function Discovery, College of Chemistry, Fuzhou University, Fujian, 350108, China
| | - Ziyue Yu
- State Key Laboratory of Photocatalysis on Energy and Environment, and Key Laboratory of Molecular Synthesis and Function Discovery, College of Chemistry, Fuzhou University, Fujian, 350108, China
| | - Hongling Yu
- State Key Laboratory of Photocatalysis on Energy and Environment, and Key Laboratory of Molecular Synthesis and Function Discovery, College of Chemistry, Fuzhou University, Fujian, 350108, China
| | - Hong Yu
- State Key Laboratory of Photocatalysis on Energy and Environment, and Key Laboratory of Molecular Synthesis and Function Discovery, College of Chemistry, Fuzhou University, Fujian, 350108, China
| | - Weiguo Huang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao West Road, Fuzhou, Fujian, 350002, China
| | - Xiong Chen
- State Key Laboratory of Photocatalysis on Energy and Environment, and Key Laboratory of Molecular Synthesis and Function Discovery, College of Chemistry, Fuzhou University, Fujian, 350108, China
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9
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Huang Z, Guo L, Yu K, Gao F, Yang Y, Luo F. Efficient gold recovery by a thiazolyl covalent organic framework. Chem Commun (Camb) 2024; 60:4950-4953. [PMID: 38629262 DOI: 10.1039/d4cc01391c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
Here, we report a thiazoyl covalent organic framework, namely ECUT-COF-29, for gold recovery. Under visible light irradiation, this material can reduce Au3+ to Au0 in a short time, and the adsorption capacity is as high as 3714 mg g-1, showing great potential in gold recovery.
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Affiliation(s)
- Zhecheng Huang
- School of Chemistry and Material Science, East China University of Technology, Nanchang, Jiangxi 344000, China.
| | - Liecheng Guo
- School of Chemistry and Material Science, East China University of Technology, Nanchang, Jiangxi 344000, China.
| | - Kai Yu
- School of Chemistry and Material Science, East China University of Technology, Nanchang, Jiangxi 344000, China.
| | - Feng Gao
- School of Chemistry and Material Science, East China University of Technology, Nanchang, Jiangxi 344000, China.
| | - Yuting Yang
- College of Chemistry and Environmental Science, Qujing Normal University, Qujing 655011, China.
| | - Feng Luo
- School of Chemistry and Material Science, East China University of Technology, Nanchang, Jiangxi 344000, China.
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10
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Rajput SK, Mothika VS. Powders to Thin Films: Advances in Conjugated Microporous Polymer Chemical Sensors. Macromol Rapid Commun 2024; 45:e2300730. [PMID: 38407503 DOI: 10.1002/marc.202300730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 02/06/2024] [Indexed: 02/27/2024]
Abstract
Chemical sensing of harmful species released either from natural or anthropogenic activities is critical to ensuring human safety and health. Over the last decade, conjugated microporous polymers (CMPs) have been proven to be potential sensor materials with the possibility of realizing sensing devices for practical applications. CMPs found to be unique among other porous materials such as metal-organic frameworks (MOFs) and covalent organic frameworks (COFs) due to their high chemical/thermal stability, high surface area, microporosity, efficient host-guest interactions with the analyte, efficient exciton migration along the π-conjugated chains, and tailorable structure to target specific analytes. Several CMP-based optical, electrochemical, colorimetric, and ratiometric sensors with excellent selectivity and sensing performance were reported. This review comprehensively discusses the advances in CMP chemical sensors (powders and thin films) in the detection of nitroaromatic explosives, chemical warfare agents, anions, metal ions, biomolecules, iodine, and volatile organic compounds (VOCs), with simultaneous delineation of design strategy principles guiding the selectivity and sensitivity of CMP. Preceding this, various photophysical mechanisms responsible for chemical sensing are discussed in detail for convenience. Finally, future challenges to be addressed in the field of CMP chemical sensors are discussed.
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Affiliation(s)
- Saurabh Kumar Rajput
- Department of Chemistry, Indian Institute of Technology (IIT) Kanpur, Kanpur, 208016, India
| | - Venkata Suresh Mothika
- Department of Chemistry, Indian Institute of Technology (IIT) Kanpur, Kanpur, 208016, India
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11
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Hong T, Lee C, Bak Y, Park G, Lee H, Kang S, Bae TH, Yoon DK, Park JG. On-Demand Tunable Electrical Conductance Anisotropy in a MOF-Polymer Composite. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2309469. [PMID: 38174621 DOI: 10.1002/smll.202309469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/27/2023] [Indexed: 01/05/2024]
Abstract
Property optimization through orientation control of metal-organic framework (MOF) crystals that exhibit anisotropic crystal structures continues to garner tremendous interest. Herein, an electric field is utilized to post-synthetically control the orientation of conductive layered Cu3(HHTP)2 (HHTP = 2,3,6,7,10,11-hexahydroxytriphenylene) crystals dispersed in an electronically insulating poly(ethylene glycol) diacrylate (PEGDA) oligomer matrix. Optical and electrical measurements are performed to investigate the impact of the electric field on the alignment of Cu3(HHTP)2 crystals and the formation of aggregated microstructures, which leads to an ≈5000-fold increase in the conductivity of the composite. Notably, the composite thin-films containing aligned Cu3(HHTP)2 crystals exhibit significant conductivity of ≈10-3 S cm-1 despite the low concentration (≈1 wt.%) of conductive Cu3(HHTP)2. The use of an electric field to align Cu3(HHTP)2 crystals can rapidly generate various desired patterns that exhibit on-demand tunable collective charge transport anisotropy. The findings provide valuable insights toward the manipulation and utilization of conductive MOFs with anisotropic crystal structures for various applications such as adhesive electrical interconnects and microelectronics.
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Affiliation(s)
- Taegyun Hong
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Changjae Lee
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Yeongseo Bak
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Geonhyeong Park
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Hongju Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Seunguk Kang
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Tae-Hyun Bae
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Dong Ki Yoon
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
- Graduate School of Nanoscience and Technology, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Jesse G Park
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
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12
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Elewa AM, Mekhemer IMA, El-Mahdy AFM, Sabbah A, Chen SY, Ting LY, Abdelnaser S, Chou HH. Room-Temperature Synthesis of Covalent Organic Frameworks using Gamma-Irradiation in Open-Air Conditions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2311472. [PMID: 38651243 DOI: 10.1002/smll.202311472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 04/03/2024] [Indexed: 04/25/2024]
Abstract
Covalent organic frameworks (COFs), which have layered stacking structures, extended π-conjugation, and periodic frameworks have become a promising class of materials for a wide range of applications. However, their synthetic pathways frequently need high temperatures, enclosed systems under high pressures, an inert atmosphere, and extended reaction time, which restrict their practicality in real-world applications. Herein, the use of gamma irradiation is presented to synthesize highly crystalline COFs at room temperature under an open-air condition within a short time. This is demonstrated that there is no significant difference in crystallinity of COFs by gamma irradiation under air, N2 or Ar atmosphere conditions. Moreover, this approach can successfully fabricate COFs in the vessel with different degrees of transparency or even in a plastic container. Importantly, this strategy is applicable not only to imine linkage of COFs but also effective to the imide linkages of COFs. Most importantly, these COFs demonstrate improved crystallinity, surface area, and thermal stability in comparison to the corresponding materials synthesized via the solvothermal method. Finally, a COF synthesized through gamma irradiation exhibits remarkable photocatalytic activity in promoting the sacrificial hydrogen evolution from water, displaying a more catalytic efficiency compared with that of its solvothermal analogue.
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Affiliation(s)
- Ahmed M Elewa
- Department of Chemical Engineering, National Tsing Hua University, Kuang-Fu Rd., Hsinchu, 300044, Taiwan
- Department of Nuclear Chemistry, Hot Laboratories Center, Atomic Energy Authority, Cairo, 13759, Egypt
| | - Islam M A Mekhemer
- Department of Chemical Engineering, National Tsing Hua University, Kuang-Fu Rd., Hsinchu, 300044, Taiwan
| | - Ahmed F M El-Mahdy
- Department of Materials and Optoelectronic Science, Center of Crystal Research, National Sun Yat-Sen University, Kaohsiung, 80424, Taiwan
| | - Amr Sabbah
- Center for Condensed Matter Sciences, National Taiwan University, Taipei, 10617, Taiwan
| | - Shih-Yuan Chen
- Energy Catalyst Technology Group, Energy Process Research Institute, National Institute of Advanced Industrial Science and Technology, 16-1 Onogawa, Tsukuba, Ibaraki, 305-8559, Japan
| | - Li-Yu Ting
- Department of Chemical Engineering, National Tsing Hua University, Kuang-Fu Rd., Hsinchu, 300044, Taiwan
| | - Shimaa Abdelnaser
- Department of Materials and Optoelectronic Science, Center of Crystal Research, National Sun Yat-Sen University, Kaohsiung, 80424, Taiwan
| | - Ho-Hsiu Chou
- Department of Chemical Engineering, National Tsing Hua University, Kuang-Fu Rd., Hsinchu, 300044, Taiwan
- College of Semiconductor Research, National Tsing Hua University, Hsinchu, 300044, Taiwan
- Photonics Research Center, National Tsing Hua University, Hsinchu, 300044, Taiwan
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13
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Zhang Z, Luo Y, Ma Y, Zhou Y, Zhu D, Shen W, Liu J. Photocatalytic manipulation of Ca 2+ signaling for regulating cellular and animal behaviors via MOF-enabled H 2O 2 generation. SCIENCE ADVANCES 2024; 10:eadl0263. [PMID: 38640246 PMCID: PMC11029810 DOI: 10.1126/sciadv.adl0263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 03/18/2024] [Indexed: 04/21/2024]
Abstract
The in situ generation of H2O2 in cells in response to external stimulation has exceptional advantages in modulating intracellular Ca2+ dynamics, including high controllability and biological safety, but has been rarely explored. Here, we develop photocatalyst-based metal-organic frameworks (DCSA-MOFs) to modulate Ca2+ responses in cells, multicellular spheroids, and organs. By virtue of the efficient photocatalytic oxygen reduction to H2O2 without sacrificial agents, photoexcited DCSA-MOFs can rapidly trigger Ca2+ outflow from the endoplasmic reticulum with single-cell precision in a repeatable and controllable manner, enabling the propagation of intercellular Ca2+ waves (ICW) over long distances in two-dimensional and three-dimensional cell cultures. After photoexcitation, ICWs induced by DCSA-MOFs can activate neural activities in the optical tectum of tadpoles and thighs of spinal frogs, eliciting the corresponding motor behaviors. Our study offers a versatile optical nongenetic modulation technique that enables remote, repeatable, and controlled manipulation of cellular and animal behaviors.
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Affiliation(s)
- Zherui Zhang
- College of Material, Chemistry, and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou 311121, China
| | - Yuhao Luo
- Zhejiang Key Laboratory of Organ Development and Regeneration, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 310036, China
| | - Yuanhong Ma
- College of Material, Chemistry, and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou 311121, China
| | - Yaofeng Zhou
- Westlake University, Shilongshan Rd. Cloud Town, Xihu District, Hangzhou, Zhejiang, China
| | - Dingcheng Zhu
- College of Material, Chemistry, and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou 311121, China
| | - Wanhua Shen
- Zhejiang Key Laboratory of Organ Development and Regeneration, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, Zhejiang 310036, China
| | - Junqiu Liu
- College of Material, Chemistry, and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou 311121, China
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14
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Choi JY, Check B, Fang X, Blum S, Pham HTB, Tayman K, Park J. Photocatalytic Hydrogen Peroxide Production through Functionalized Semiconductive Metal-Organic Frameworks. J Am Chem Soc 2024. [PMID: 38602882 DOI: 10.1021/jacs.4c00681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Abstract
Hydrogen peroxide (H2O2) holds significance as a vital chemical with the potential to serve as an energy carrier. Compared with the conventional anthraquinone process, photocatalytic H2O2 production has emerged as an appealing alternative because of its energy efficiency and environmental sustainability. However, the existing photocatalysts suffer from low catalytic efficiency, limited tunability of optical properties, and reliance on sacrificial agents due to high energy loss caused by inefficient charge separation. Therefore, developing catalysts with tunable optical properties and efficient charge separation is desirable. In this work, we introduce postsynthetic functionalization into an electrically conductive metal-organic framework, namely, DPT-MOF. Leveraging DPT (3,6-di(4-pyridyl)-1,2,4,5-tetrazine) as a pillar ligand, we exploited click-type chemistry to manipulate band position and charge separation efficiency, allowing for photocatalytic nonsacrificial H2O2 production. Notably, the fluorine-functionalized MOF exhibited the highest H2O2 production rate of 1676 μmol g-1 h-1 under visible light in O2-saturated water among our other samples. This high production rate is attributed to the tuned electronic structure and prolonged charge lifetime facilitated by the fluorine groups. This work highlights the effectiveness of postsynthetic methodology in tuning optical properties, opening a promising avenue for advancing the field of semiconductive MOF-based photocatalysis.
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Affiliation(s)
- Ji Yong Choi
- Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Brianna Check
- Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Xiaoyu Fang
- Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Samson Blum
- Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Hoai T B Pham
- Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Kyle Tayman
- Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Jihye Park
- Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, United States
- Materials Science & Engineering Program, University of Colorado Boulder, Boulder, Colorado 80303, United States
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15
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Wang Q, Wang C, Zheng K, Wang B, Wang Z, Zhang C, Long X. Positional Thiophene Isomerization: A Geometric Strategy for Precisely Regulating the Electronic State of Covalent Organic Frameworks to Boost Oxygen Reduction. Angew Chem Int Ed Engl 2024; 63:e202320037. [PMID: 38348605 DOI: 10.1002/anie.202320037] [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: 12/26/2023] [Indexed: 02/29/2024]
Abstract
With the oxygen conversion efficiency of metal-free carbon-based fuel cells dramatically improved, the building blocks of covalent organic frameworks (COFs) raised principal concerns on the catalytic active sites with indistinct electronic states. Herein, to address this issue, we demonstrate COFs for oxygen reduction reaction (ORR) by regulating the edge-hanging thiophene units, and the molecular geometries are further modulated via positional thiophene isomerization strategy, affording isomeric COF-α with 2-substitution and COF-β with 3-substitution on the frameworks. The electronic states and intermediate adsorption ability are well-regulated through geometric modification, resulting in controllable chemical activity and local density of π-electrons. Notably, the introduction of thiophene units with different substitution positions into a pristine pure carbon-based COF model COF-Ph achieves excellent activity with a half-wave potential of 0.76 V versus the reversible hydrogen electrode, which is higher than most of those metal-free or metal-based electrocatalysts. Utilizing the combination of theoretical prediction and in situ Raman spectra, we show that the isomeric thiophene skeleton (COF-α and COF-β) can induce the dangling unit activation, accurately identifying the pentacyclic-carbon (thiophene α-position) adjacent to sulfur atom as active sites. The results suggest that the isomeric dangling groups in COFs are suitable for the ORR with promising geometry construction.
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Affiliation(s)
- Qian Wang
- State Key Laboratory of Bio-fibers and Eco-textiles, Collaborative Innovation Center of Shandong Marine Biobased Fibers and Ecological textiles, Institute of Marine Biobased Materials, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, P. R. China
| | - Chao Wang
- State Key Laboratory of Bio-fibers and Eco-textiles, Collaborative Innovation Center of Shandong Marine Biobased Fibers and Ecological textiles, Institute of Marine Biobased Materials, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, P. R. China
| | - Kunpeng Zheng
- State Key Laboratory of Bio-fibers and Eco-textiles, Collaborative Innovation Center of Shandong Marine Biobased Fibers and Ecological textiles, Institute of Marine Biobased Materials, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, P. R. China
| | - Binbin Wang
- State Key Laboratory of Bio-fibers and Eco-textiles, Collaborative Innovation Center of Shandong Marine Biobased Fibers and Ecological textiles, Institute of Marine Biobased Materials, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, P. R. China
| | - Zhong Wang
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, P. R. China
| | - Chuanhui Zhang
- State Key Laboratory of Bio-fibers and Eco-textiles, Collaborative Innovation Center of Shandong Marine Biobased Fibers and Ecological textiles, Institute of Marine Biobased Materials, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, P. R. China
| | - Xiaojing Long
- State Key Laboratory of Bio-fibers and Eco-textiles, Collaborative Innovation Center of Shandong Marine Biobased Fibers and Ecological textiles, Institute of Marine Biobased Materials, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, P. R. China
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16
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Un HI, Lu Y, Li J, Dong R, Feng X, Sirringhaus H. Controlling Film Formation and Host-Guest Interactions to Enhance the Thermoelectric Properties of Nickel-Nitrogen-Based 2D Conjugated Coordination Polymers. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2312325. [PMID: 38227294 DOI: 10.1002/adma.202312325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 01/05/2024] [Indexed: 01/17/2024]
Abstract
2D conjugated coordination polymers (cCPs) based on square-planar transition metal-complexes (such as MO4, M(NH)4, and MS4, M = metal) are an emerging class of (semi)conducting materials that are of great interest for applications in supercapacitors, catalysis, and thermoelectrics. Finding synthetic approaches to high-performance nickel-nitrogen (Ni-N) based cCP films is a long-standing challenge. Here, a general, dynamically controlled on-surface synthesis that produces highly conductive Ni-N-based cCP films is developed and the thermoelectric properties as a function of the molecular structure and their dependence on interactions with ambient atmosphere are studied. Among the four studied cCPs with different ligand sizes hexaminobenzene- and hexaaminotriphenylene-based films exhibit record electrical conductivity (100-200 S cm-1) in this Ni-N based cCP family, which is one order of magnitude higher than previous reports, and the highest thermoelectric power factors up to 10 µW m-1 K-2 among reported 2D cCPs. The transport physics of these films is studied and it is shown that depending on the host-guest interaction with oxygen/water the majority carrier type and the value of the Seebeck coefficient can be largely regulated. The high conductivity is likely reflecting good interconnectivity between (small) ordered domains and grain boundaries supporting disordered metallic transport.
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Affiliation(s)
- Hio-Ieng Un
- Optoelectronics Group, Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge, CB3 0HE, UK
| | - Yang Lu
- Center for Advancing Electronics Dresden & Faculty of Chemistry and Food Chemistry, Technical University of Dresden, Mommsenstrasse 4, 01062, Dresden, Germany
- Max Planck Institute of Microstructure Physics, 06120, Halle (Saale), Germany
- University of Strasbourg, CNRS, ISIS, UMR 7006, 8 Alleé Gaspard Monge, Strasbourg, 67000, France
| | - Jiaxuan Li
- Optoelectronics Group, Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge, CB3 0HE, UK
| | - Renhao Dong
- Center for Advancing Electronics Dresden & Faculty of Chemistry and Food Chemistry, Technical University of Dresden, Mommsenstrasse 4, 01062, Dresden, Germany
- Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Xinliang Feng
- Center for Advancing Electronics Dresden & Faculty of Chemistry and Food Chemistry, Technical University of Dresden, Mommsenstrasse 4, 01062, Dresden, Germany
- Max Planck Institute of Microstructure Physics, 06120, Halle (Saale), Germany
| | - Henning Sirringhaus
- Optoelectronics Group, Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge, CB3 0HE, UK
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17
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Liao Y, Guo L, Gong LL, Zhang QY, Zhao D, Jia Y, Hua R, Luo F. Regulating Benzene Ring Number as Connector in Covalent Organic Framework for Boosting Photosynthesis of H 2O 2 from Seawater. NANO LETTERS 2024; 24:3819-3825. [PMID: 38488397 DOI: 10.1021/acs.nanolett.4c00628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
Photosynthesis of H2O2 from seawater represents a promising pathway to acquire H2O2, but it is still restricted by the lack of a highly active photocatalyst. In this work, we propose a convenient strategy of regulating the number of benzene rings to boost the catalytic activity of materials. This is demonstrated by ECUT-COF-31 with adding two benzene rings as the connector, which can result in 1.7-fold enhancement in the H2O2 production rate relative to ECUT-COF-30 with just one benzene ring as the connector. The reason for enhancement is mainly due to the release of *OOH from the surface of catalyst and the final formation of H2O2 being easier in ECUT-COF-31 than in ECUT-COF-30. Moreover, ECUT-COF-31 provides a stable photogeneration of H2O2 for 70 h, and a theoretically remarkable H2O2 production of 58.7 mmol per day from seawater using one gram of photocatalyst, while the cost of the used raw material is as low as 0.24 $/g.
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Affiliation(s)
- Yuxin Liao
- School of Nuclear Science and Engineering, East China University of Technology, Nanchang 330013, China
| | - Liecheng Guo
- School of Chemistry and Materials Science, East China University of Technology, Nanchang 330013, China
| | - Le-Le Gong
- State Key Laboratory of NBC Protection for Civilian, Beijing 100191, China
| | - Qing Yun Zhang
- School of Chemistry and Materials Science, East China University of Technology, Nanchang 330013, China
| | - Dan Zhao
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, China
| | - Yuanzhe Jia
- School of Nuclear Science and Engineering, East China University of Technology, Nanchang 330013, China
| | - Rong Hua
- School of Nuclear Science and Engineering, East China University of Technology, Nanchang 330013, China
| | - Feng Luo
- School of Chemistry and Materials Science, East China University of Technology, Nanchang 330013, China
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18
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Wang HH, Li F, Yao BJ, Dong YB. Pd NP-loaded covalent organic framework for pH-switched Pickering emulsion catalytic dechlorination. Chem Commun (Camb) 2024; 60:3445-3448. [PMID: 38445390 DOI: 10.1039/d3cc05982k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
Quinoline carboxylic acid-linked and Pd nanoparticle (NP)-loaded COF nanospheres were constructed via a three-component one-pot Doebner reaction and post-synthetic metalation. The obtained Pd@DhaTAPB-COOH solid stabilizer can greatly promote the pH-switched recyclable Pickering interfacial dechlorination reaction, which sheds light on the bright future of smart Pickering emulsion catalysis.
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Affiliation(s)
- Han-Hui Wang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan 250014, P. R. China.
| | - Fei Li
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan 250014, P. R. China.
| | - Bing-Jian Yao
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan 250014, P. R. China.
| | - Yu-Bin Dong
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan 250014, P. R. China.
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19
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Zeng T, Ling Y, Jiang W, Yao X, Tao Y, Liu S, Liu H, Yang T, Wen W, Jiang S, Zhao Y, Ma Y, Zhang YB. Atomic observation and structural evolution of covalent organic framework rotamers. Proc Natl Acad Sci U S A 2024; 121:e2320237121. [PMID: 38252821 PMCID: PMC10835055 DOI: 10.1073/pnas.2320237121] [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: 11/21/2023] [Accepted: 12/18/2023] [Indexed: 01/24/2024] Open
Abstract
Dynamic 3D covalent organic frameworks (COFs) have shown concerted structural transformation and adaptive gas adsorption due to the conformational diversity of organic linkers. However, the isolation and observation of COF rotamers constitute undergoing challenges due to their comparable free energy and subtle rotational energy barrier. Here, we report the atomic-level observation and structural evolution of COF rotamers by cryo-3D electron diffraction and synchrotron powder X-ray diffraction. Specifically, we optimize the crystallinity and morphology of COF-320 to manifest its coherent dynamic responses upon adaptive inclusion of guest molecules. We observe a significant crystal expansion of 29 vol% upon hydration and a giant swelling with volume change up to 78 vol% upon solvation. We record the structural evolution from a non-porous contracted phase to two narrow-pore intermediate phases and the fully opened expanded phase using n-butane as a stabilizing probe at ambient conditions. We uncover the rotational freedom of biphenylene giving rise to significant conformational changes on the diimine motifs from synclinal to syn-periplanar and anticlinal rotamers. We illustrate the 10-fold increment of pore volumes and 100% enhancement of methane uptake capacity of COF-320 at 100 bar and 298 K. The present findings shed light on the design of smarter organic porous materials to maximize host-guest interaction and boost gas uptake capacity through progressive structural transformation.
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Affiliation(s)
- Tengwu Zeng
- School of Physical Science and Technology, ShanghaiTech University, Shanghai201210, China
| | - Yang Ling
- School of Physical Science and Technology, ShanghaiTech University, Shanghai201210, China
- Shanghai Key Laboratory of High-Resolution Electron Microscopy, ShanghaiTech University, Shanghai201210, China
| | - Wentao Jiang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai201210, China
| | - Xuan Yao
- School of Physical Science and Technology, ShanghaiTech University, Shanghai201210, China
| | - Yu Tao
- School of Physical Science and Technology, ShanghaiTech University, Shanghai201210, China
| | - Shan Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai201210, China
| | - Huiyu Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai201210, China
| | - Tieying Yang
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai201210, China
| | - Wen Wen
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai201210, China
| | - Shan Jiang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai201210, China
- Shanghai Key Laboratory of High-Resolution Electron Microscopy, ShanghaiTech University, Shanghai201210, China
| | - Yingbo Zhao
- School of Physical Science and Technology, ShanghaiTech University, Shanghai201210, China
- Shanghai Key Laboratory of High-Resolution Electron Microscopy, ShanghaiTech University, Shanghai201210, China
| | - Yanhang Ma
- School of Physical Science and Technology, ShanghaiTech University, Shanghai201210, China
- Shanghai Key Laboratory of High-Resolution Electron Microscopy, ShanghaiTech University, Shanghai201210, China
| | - Yue-Biao Zhang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai201210, China
- Shanghai Key Laboratory of High-Resolution Electron Microscopy, ShanghaiTech University, Shanghai201210, China
- State Key Laboratory of Advanced Medical Materials and Devices, ShanghaiTech University, Shanghai201210, China
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20
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Cao X, Zhang D, Gao Y, Prezhdo OV, Xu L. Design of Boron and Transition Metal Embedded Two-Dimensional Porous Carbon Nitride for Electrocatalytic Synthesis of Urea. J Am Chem Soc 2024; 146:1042-1052. [PMID: 38147589 PMCID: PMC10785813 DOI: 10.1021/jacs.3c12017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 12/01/2023] [Accepted: 12/04/2023] [Indexed: 12/28/2023]
Abstract
Electrocatalytic coupling of CO and N2 to synthesize urea under ambient conditions is considered a promising strategy to replace traditional industrial technology. It is crucial to find efficient electrocatalysts that can adsorb and activate N2 and promote the C-N coupling reaction. Herein, a new two-dimensional porous carbon nitride material with multiactive sites is designed, in which boron and transition metal are embedded. Through a series of screening, B2Cr2, B2Mn2, and B2Os2 are predicted to be potential electrocatalysts for urea synthesis. Mechanistic studies are performed on bidentate metal-metal and metal-boron sites, and both NCON and CO mechanisms are explored. The electronic structure analysis shows that there is a strong N2 chemical adsorption within the bidentate site and that the N≡N bond is significantly activated. A new mechanism where free CO is inserted for C-N coupling within the two-dimensional porous structure is proposed.
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Affiliation(s)
- Xin Cao
- Institute
of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory
of Advanced Negative Carbon Technologies, Jiangsu Key Laboratory for
Carbon-Based Functional Materials & Devices, Joint International
Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, Jiangsu, People’s Republic
of China
| | - Dewei Zhang
- Institute
of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory
of Advanced Negative Carbon Technologies, Jiangsu Key Laboratory for
Carbon-Based Functional Materials & Devices, Joint International
Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, Jiangsu, People’s Republic
of China
| | - Yongqi Gao
- Institute
of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory
of Advanced Negative Carbon Technologies, Jiangsu Key Laboratory for
Carbon-Based Functional Materials & Devices, Joint International
Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, Jiangsu, People’s Republic
of China
| | - Oleg V. Prezhdo
- Department
of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Lai Xu
- Institute
of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory
of Advanced Negative Carbon Technologies, Jiangsu Key Laboratory for
Carbon-Based Functional Materials & Devices, Joint International
Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, Jiangsu, People’s Republic
of China
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