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Pan WX, Chen L, Li WY, Ma Q, Xiang H, Ma N, Wang X, Jiang Y, Xia F, Zhu M. Scalable Fabrication of Ionic-Conductive Covalent Organic Framework Fibers for Capturing of Sustainable Osmotic Energy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2401772. [PMID: 38634168 DOI: 10.1002/adma.202401772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 04/08/2024] [Indexed: 04/19/2024]
Abstract
High-performance covalent organic framework (COF) fibers are demanded for an efficient capturing of blue osmotic power because of their excellent durability, simple integration, and large scalability. However, the scalable production of COF fibers is still very challenging due to the poor solubility and fragile structure of COFs. Herein, for the first time, it is reported that COF dispersions can be continuously processed into macroscopic, meter-long, and pure COF fibers using a wet spinning approach. The two presented COF fibers can be directly used for capturing of osmotic energy, avoiding the production of composite materials that require other additives and face challenges such as phase separation and environmental issues induced by the additives. A COF fiber exhibits power densities of 70.2 and 185.3 W m-2 at 50-fold and 500-fold salt gradients, respectively. These values outperform those of most reported systems, which indicate the high potential of COF fibers for capturing of blue osmotic energy.
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Affiliation(s)
- Wang-Xiang Pan
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University, Shanghai, 201620, P. R. China
| | - Liang Chen
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nanogeomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, P. R. China
| | - Wan-Ying Li
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University, Shanghai, 201620, P. R. China
| | - Qun Ma
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nanogeomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, P. R. China
| | - Hengxue Xiang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University, Shanghai, 201620, P. R. China
| | - Ning Ma
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University, Shanghai, 201620, P. R. China
| | - Xu Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University, Shanghai, 201620, P. R. China
| | - Yi Jiang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University, Shanghai, 201620, P. R. China
| | - Fan Xia
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nanogeomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, P. R. China
| | - Meifang Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University, Shanghai, 201620, P. R. China
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2
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Chen X, Yu C, Yusran Y, Qiu S, Fang Q. Breaking Dynamic Behavior in 3D Covalent Organic Framework with Pre-Locked Linker Strategy. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:329. [PMID: 38392702 PMCID: PMC10891907 DOI: 10.3390/nano14040329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 02/02/2024] [Accepted: 02/04/2024] [Indexed: 02/24/2024]
Abstract
Due to their large surface area and pore volume, three-dimensional covalent organic frameworks (3D COFs) have emerged as competitive porous materials. However, structural dynamic behavior, often observed in imine-linked 3D COFs, could potentially unlock their potential application in gas storage. Herein, we showed how a pre-locked linker strategy introduces breaking dynamic behavior in 3D COFs. A predesigned planar linker-based 3,8-diamino-6-phenylphenanthridine (DPP) was prepared to produce non-dynamic 3D JUC-595, as the benzylideneamine moiety in DPP locked the linker flexibility and restricted the molecular bond rotation of the imine linkages. Upon solvent inclusion and release, the PXRD profile of JUC-595 remained intake, while JUC-594 with a flexible benzidine linker experienced crystal transformation due to framework contraction-expansion. As a result, the activated JUC-595 achieved higher surface areas (754 m2 g-1) than that of JUC-594 (548 m2 g-1). Furthermore, improved CO2 and CH4 storages were also seen in JUC-595 compared with JUC-594. Impressively, JUC-595 recorded a high normalized H2 storage capacity that surpassed other reported high-surface area 3D COFs. This works shows important insights on manipulating the structural properties of 3D COF to tune gas storage performance.
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Affiliation(s)
- Xiaohong Chen
- College of Chemistry, State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, China
| | - Chengyang Yu
- College of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Yusran Yusran
- College of Chemistry, State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, China
| | - Shilun Qiu
- College of Chemistry, State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, China
| | - Qianrong Fang
- College of Chemistry, State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, China
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3
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Wang Z, Furukawa S. Pore-Networked Soft Materials Based on Metal-Organic Polyhedra. Acc Chem Res 2024; 57:327-337. [PMID: 38205789 DOI: 10.1021/acs.accounts.3c00655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
ConspectusThe last two decades have witnessed a tremendous development of crystalline microporous adsorbents in a wide range of applications including molecular adsorption, storage and separation, purification, as well as catalysis. The main players as porous materials that have contributed to the developments are extended molecular frameworks (e.g., metal-organic frameworks, MOFs; covalent-organic frameworks, COFs) or discrete porous molecules (e.g., metal-organic cages, MOCs; porous organic cages, POCs) thanks to the high degrees of freedom in their structural designability and tunability. To overcome the processability issue originating from their powder forms after synthesis, one main strategy is to hybridize the microporous adsorbents as pore-containing fillers with solvents or polymers as processable matrices to produce porous soft materials, such as porous liquids, gels/aerogels, and mixed-matrix membranes, depending on the form of matrix used. Nevertheless, the fabrication of "ideal" hybrid materials relies on the homogeneous distribution of the pore-containing fillers within the matrices. It is still challenging to find a versatile way to solve the aggregation issues of fillers and their insufficient interaction with the matrices, which are concerned with inhibiting the translation of the distinctive properties of microporous adsorbents into the obtained hybrid soft materials.Herein, we describe a new bottom-up approach for the fabrication of "pore-networked soft materials" based on the concept of directly interconnecting the pore-containing fillers into a continuous pore network within the matrices. The advantages of the pore-networking strategy lie in two main aspects: (i) the elimination of the need to struggle with the aggregation issue of fillers due to their overall interconnection throughout the matrices; (ii) the generation of continuous pore networks that guarantee the efficient molecular mass transfer in the materials. In this Account, we summarize our state-of-the-art progress of pore-networked soft materials based on the use of MOCs, alternatively called metal-organic polyhedra (MOPs) herein, as pore units for the pore network construction. The good solubility of MOPs in organic solvents allows them to be feasibly processed in solution, wherein the coordination of MOPs with organic linkers leads to the formation of linked MOP gels featuring not only intrinsic MOP cavities but also tunable extrinsic porosities generated between linked MOPs through the control of MOP/linker structures and network connectivity. Furthermore, the matrix of the linked MOP network, here referred to as the continuous phase with respect to the entire porous MOP network, is not limited to the solvents. We anticipate that the implementation of air, liquids, and polymers as the matrices could result in different forms of pore-networked soft materials like aerogels, foams, gels, monoliths, and membranes. For instance, we demonstrate the fabrication of linked MOP aerogel and permanently porous gel with their potential applications on selective CO2 photoreduction and gas sorption, respectively. We believe that the pore-network strategies will advance the development of porous soft materials featuring unique advantages and properties beyond the current hybrid systems.
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Affiliation(s)
- Zaoming Wang
- Institute for Integrated Cell-Material Science (WPI-iCeMS), Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Shuhei Furukawa
- Institute for Integrated Cell-Material Science (WPI-iCeMS), Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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Chen Z, Weng P, Song Y, Zheng L, Tan Y, Yin X. Loofah-inspired sodium alginate/carboxymethyl cellulose sodium-based porous frame for all-weather super-viscous crude oil adsorption and wastewater treatment in harsh environment. Carbohydr Polym 2024; 323:121450. [PMID: 37940312 DOI: 10.1016/j.carbpol.2023.121450] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 09/28/2023] [Accepted: 09/29/2023] [Indexed: 11/10/2023]
Abstract
Solar-driven viscosity reduction of highly viscous crude oil has emerged as an environmentally friendly method to address large-scale oil spills. However, the challenge lies in the limited availability of sunlight during cloudy days and at night, which hinders the effectiveness of green advanced porous materials. This study developed all-weather-available advanced porous materials in the form of loofah-like structured porous frame composed of 1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane/MXene/carbon nanotubes (CNTs)/sodium alginate (SA)/carboxymethyl cellulose sodium (NaCMC). MXene and CNTs formed a continuous and stable network that enabled PMCSCPs to rapidly reduce crude oil viscosity for all-day based on photothermal and electrothermal conversions. Additionally, loofah-like porous structure and oriented pipeline biomass skeleton endowed PMCSCPs with stable and rapid adsorption capacity and speed. Considering the complexity of the external environment and oily wastewater composition, we verified the separation performance of PMCSCPs for metal ions and dyes and the ice-breaking ability under icy conditions. PMCSCPs provided a novel approach to achieving clean, high-efficiency, all-day remediation of ultra-viscous crude oil. This "Three birds with one stone" approach is expected to be obtained from nature and used on a large scale, replacing conventional porous adsorbent materials.
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Affiliation(s)
- Zhicheng Chen
- College of Materials Science and Engineering, State Key Laboratory of New Textile Materials & Advanced Processing Technology, Wuhan Textile University, Wuhan 430200, China
| | - Puxin Weng
- College of Chemistry and Materials Science, Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou 510632, China
| | - Yiheng Song
- College of Materials Science and Engineering, State Key Laboratory of New Textile Materials & Advanced Processing Technology, Wuhan Textile University, Wuhan 430200, China
| | - Long Zheng
- College of Materials Science and Engineering, State Key Laboratory of New Textile Materials & Advanced Processing Technology, Wuhan Textile University, Wuhan 430200, China
| | - Yeqiang Tan
- State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center of Marine Biobased Fiber and Ecological Textile Technology, Institute of Marine Biobased Materials, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Xianze Yin
- College of Materials Science and Engineering, State Key Laboratory of New Textile Materials & Advanced Processing Technology, Wuhan Textile University, Wuhan 430200, China; State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center of Marine Biobased Fiber and Ecological Textile Technology, Institute of Marine Biobased Materials, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China.
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5
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Jia S, Liu Y, Hao L, Ni J, Wang Y, Yang Y, Chen Y, Cheng P, Chen L, Zhang Z. A General Group-Protection Synthesis Strategy to Fabricate Covalent Organic Framework Gels. J Am Chem Soc 2023; 145:26266-26278. [PMID: 38011228 DOI: 10.1021/jacs.3c09284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Fabricating insoluble and infusible porous materials into gels for advanced applications is of great importance but has formidable challenges. Here, we present a general, facile, and scalable protocol to fabricate covalent organic framework (COF) gels using a group-protection synthesis strategy. To prove the generality of this strategy, we successfully prepared 10 types of COF organohydrogels with high crystallinity, porosity, good mechanical properties, and excellent solvent and freezing resistance. Notably, these COF organohydrogels can easily transform into hydrogels, organogels, and aerogels, breaking the gaps between different types of COF gels. An in-depth mechanism investigation unveils that the group-protection strategy effectively slows down the formation rate and regulates the morphology of COFs, benefiting the formation of cross-linked nanofibers/nanosheets to produce COF gels. We also find that the hydrogen bond network formed by the organic/water binary solvent and functional groups in the COF skeletons plays a vital role in creating organohydrogels and maintaining frost resistance and solvent resistance. As an application demonstration, COF gels installed with photoresponsive azobenzene groups show excellent solar energy absorption, photothermal conversion, and water transmission performances, demonstrating great potential in solar desalination. This work enriches the synthesis toolboxes for COF gels and expands the application scope of COFs.
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Affiliation(s)
- Shuping Jia
- College of Chemistry, Nankai University, Tianjin 300071, China
- Xinjiang Key Laboratory of Novel Functional Materials Chemistry, College of Chemistry and Environmental Sciences, Kashi University, Kashi 844000, China
| | - Yujie Liu
- College of Chemistry, Nankai University, Tianjin 300071, China
| | - Liqin Hao
- College of Chemistry, Nankai University, Tianjin 300071, China
| | - Jiayu Ni
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Yanjie Wang
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Yi Yang
- College of Chemistry, Nankai University, Tianjin 300071, China
| | - Yao Chen
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
| | - Peng Cheng
- College of Chemistry, Nankai University, Tianjin 300071, China
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin 300071, China
| | - Li Chen
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Zhenjie Zhang
- College of Chemistry, Nankai University, Tianjin 300071, China
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin 300071, China
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6
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Senarathna MC, Li H, Perera SD, Torres-Correas J, Diwakara SD, Boardman SR, Al-Kharji NM, Liu Y, Smaldone RA. Highly Flexible Dielectric Films from Solution Processable Covalent Organic Frameworks. Angew Chem Int Ed Engl 2023; 62:e202312617. [PMID: 37851585 DOI: 10.1002/anie.202312617] [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: 08/27/2023] [Revised: 10/13/2023] [Accepted: 10/18/2023] [Indexed: 10/20/2023]
Abstract
Covalent organic frameworks (COFs) are known to be a promising class of materials for a wide range of applications, yet their poor solution processability limits their utility in many areas. Here we report a pore engineering method using hydrophilic side chains to improve the processability of hydrazone and β-ketoenamine-linked COFs and the production of flexible, crystalline films. Mechanical measurements of the free-standing COF films of COF-PEO-3 (hydrazone-linked) and TFP-PEO-3 (β-ketoenamine-linked), revealed a Young's modulus of 391.7 MPa and 1034.7 MPa, respectively. The solubility and excellent mechanical properties enabled the use of these COFs in dielectric devices. Specifically, the TFP-PEO-3 film-based dielectric capacitors display simultaneously high dielectric constant and breakdown strength, resulting in a discharged energy density of 11.22 J cm-3 . This work offers a general approach for producing solution processable COFs and mechanically flexible COF-based films, which hold great potential for use in energy storage and flexible electronics applications.
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Affiliation(s)
- Milinda C Senarathna
- Department of Chemistry and Biochemistry, University of Texas at Dallas, 800 West Campbell Road, Richardson, TX 75080, USA
| | - He Li
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Sachini D Perera
- Department of Chemistry and Biochemistry, University of Texas at Dallas, 800 West Campbell Road, Richardson, TX 75080, USA
| | - Jose Torres-Correas
- Department of Chemistry and Biochemistry, University of Texas at Dallas, 800 West Campbell Road, Richardson, TX 75080, USA
| | - Shashini D Diwakara
- Department of Chemistry and Biochemistry, University of Texas at Dallas, 800 West Campbell Road, Richardson, TX 75080, USA
| | - Samuel R Boardman
- Department of Chemistry and Biochemistry, University of Texas at Dallas, 800 West Campbell Road, Richardson, TX 75080, USA
| | - Noora M Al-Kharji
- Department of Chemistry and Biochemistry, University of Texas at Dallas, 800 West Campbell Road, Richardson, TX 75080, USA
| | - Yi Liu
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Ronald A Smaldone
- Department of Chemistry and Biochemistry, University of Texas at Dallas, 800 West Campbell Road, Richardson, TX 75080, USA
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7
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Ajnsztajn A, Harikrishnan VVJ, Alahakoon SB, Zhu D, Barnes M, Daum J, Gayle J, Tomur G, Lowenstein J, Roy S, Ajayan PM, Verduzco R. Synthesis and Additive Manufacturing of Hydrazone-Linked Covalent Organic Framework Aerogels. Chemistry 2023; 29:e202302304. [PMID: 37665636 DOI: 10.1002/chem.202302304] [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: 07/18/2023] [Revised: 08/29/2023] [Accepted: 09/04/2023] [Indexed: 09/06/2023]
Abstract
Covalent Organic Frameworks (COFs) are crystalline, porous organic materials. Recent studies have demonstrated novel processing strategies for COFs to form adaptable architectures, but these have focused primarily on imine-linked COFs. This work presents a new synthesis and processing route to produce crystalline hydrazone-linked COF gels and aerogels with hierarchical porosity. The method was implemented to produce a series of hydrazone-linked COFs with different alkyl side-chain substituents, achieving control of the hydrophilicity of the final aerogel. Variation in the length of the alkyl substituents yielded materials with controllable form factors that can preferentially adsorb water or nonpolar organic solvents. Additionally, a method for additive manufacturing of hydrazone-linked COFs using hydroxymethylcellulose as a sacrificial additive is presented. This work demonstrates an effective and simple approach to the fabrication of hydrazone COF aerogels and additive manufacturing to produce hydrazone COFs of desired shape.
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Affiliation(s)
- Alec Ajnsztajn
- Department of Materials Science and Nanoengineering, Rice University, Houston, TX-77005, USA
| | | | - Sampath B Alahakoon
- Department of Materials Science and Nanoengineering, Rice University, Houston, TX-77005, USA
- Institute for Combinatorial Advanced Research and Education, General Sir John Kotelawala Defence University, Kandawala Rd, Ratmalana, 10390, Sri Lanka
| | - Dongyang Zhu
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX-77005, USA
| | - Morgan Barnes
- Department of Materials Science and Nanoengineering, Rice University, Houston, TX-77005, USA
| | - Jeremy Daum
- Department of Materials Science and Nanoengineering, Rice University, Houston, TX-77005, USA
| | - Jessica Gayle
- Department of Materials Science and Nanoengineering, Rice University, Houston, TX-77005, USA
| | - Gulnihal Tomur
- Department of Materials Science and Nanoengineering, Rice University, Houston, TX-77005, USA
| | - Jacob Lowenstein
- Department of Materials Science and Nanoengineering, Rice University, Houston, TX-77005, USA
| | - Soumyabrata Roy
- Department of Materials Science and Nanoengineering, Rice University, Houston, TX-77005, USA
| | - Pulickel M Ajayan
- Department of Materials Science and Nanoengineering, Rice University, Houston, TX-77005, USA
| | - Rafael Verduzco
- Department of Materials Science and Nanoengineering, Rice University, Houston, TX-77005, USA
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX-77005, USA
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8
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Daum JP, Ajnsztajn A, Iyengar SA, Lowenstein J, Roy S, Gao GH, Tsai EHR, Ajayan PM, Verduzco R. Solutions Are the Problem: Ordered Two-Dimensional Covalent Organic Framework Films by Chemical Vapor Deposition. ACS NANO 2023; 17:21411-21419. [PMID: 37871166 DOI: 10.1021/acsnano.3c06142] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
Covalent organic frameworks (COFs) are a promising class of crystalline polymer networks that are useful due to their high porosity, versatile functionality, and tunable architecture. Conventional solution-based methods of producing COFs are marred by slow reactions that produce powders that are difficult to process into adaptable form factors for functional applications, and there is a need for facile and fast synthesis techniques for making crystalline and ordered covalent organic framework (COF) thin films. In this work, we report a chemical vapor deposition (CVD) approach utilizing co-evaporation of two monomers onto a heated substrate to produce highly crystalline, defect-free COF films and coatings with hydrazone, imine, and ketoenamine COF linkages. This all-in-one synthesis technique produces highly crystalline, 40 nm-1 μm-thick COF films on Si/SiO2 substrates in less than 30 min. Crystallinity and alignment were proven by using a combination of grazing-incidence wide-angle X-ray scattering (GIWAXS) and transmission electron microscopy (TEM), and successful conversion of the monomers to produce the target COF was supported by Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and UV-vis measurements. Additionally, we used atomic force microscopy (AFM) to investigate the growth mechanisms of these films, showing the coalescence of triangular crystallites into a smooth film. To show the wide applicability and scope of the CVD process, we also prepared crystalline ordered COF films with imine and ketoenamine linkages. These films show potential as high-quality size exclusion membranes, catalytic platforms, and organic transistors.
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Affiliation(s)
- Jeremy P Daum
- Department of Materials Science and Nanoengineering, Rice University, Houston, Texas 77005, United States
| | - Alec Ajnsztajn
- Department of Materials Science and Nanoengineering, Rice University, Houston, Texas 77005, United States
| | - Sathvik Ajay Iyengar
- Department of Materials Science and Nanoengineering, Rice University, Houston, Texas 77005, United States
| | - Jacob Lowenstein
- Department of Materials Science and Nanoengineering, Rice University, Houston, Texas 77005, United States
| | - Soumyabrata Roy
- Department of Materials Science and Nanoengineering, Rice University, Houston, Texas 77005, United States
| | - Guan-Hui Gao
- Department of Materials Science and Nanoengineering, Rice University, Houston, Texas 77005, United States
| | - Esther H R Tsai
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Pulickel M Ajayan
- Department of Materials Science and Nanoengineering, Rice University, Houston, Texas 77005, United States
| | - Rafael Verduzco
- Department of Materials Science and Nanoengineering, Rice University, Houston, Texas 77005, United States
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
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9
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Li SH, Li BB, Zhao XL, Wu H, Chai RL, Li GY, Zhu D, He G, Zhang HF, Xie KK, Cheng B, Zhao Q. Macrocycle Self-Assembly Hydrogel for High-Efficient Oil-Water Separation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2301934. [PMID: 37271893 DOI: 10.1002/smll.202301934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 05/16/2023] [Indexed: 06/06/2023]
Abstract
Supramolecular hydrogels involved macrocycles have been explored widely in recent years, but it remains challenging to develop hydrogel based on solitary macrocycle with super gelation capability. Here, the construction of lantern[33 ]arene-based hydrogel with low critical gelation concentration (0.05 wt%), which can be used for efficient oil-water separation, is reported. The lantern[33 ]arenes self-assemble into hydrogen-bonded organic nanoribbons, which intertwine into entangled fibers to form hydrogel. This hydrogel which exhibits reversible pH-responsiveness characteristics can be coated on stainless-steel mesh by in situ sol-gel transformation. The resultant mesh exhibits excellent oil-water separation efficiency (>99%) and flux (>6 × 104 L m-2 h-1 ). This lantern[33 ]arene-based hydrogel not only sheds additional light on the gelation mechanisms for supramolecular hydrogels, but also extends the application of macrocycle-based hydrogels as functional interfacial materials.
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Affiliation(s)
- Sheng-Hua Li
- Department of Materials, College of Chemical Engineering and Materials Science, Department of Chemistry, College of Sciences, Tianjin University of Science & Technology, Tianjin, 300457, China
| | - Bin-Bin Li
- Department of Materials, College of Chemical Engineering and Materials Science, Department of Chemistry, College of Sciences, Tianjin University of Science & Technology, Tianjin, 300457, China
| | - Xue-Lin Zhao
- Department of Materials, College of Chemical Engineering and Materials Science, Department of Chemistry, College of Sciences, Tianjin University of Science & Technology, Tianjin, 300457, China
| | - Huang Wu
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
| | - Rui-Lin Chai
- Department of Materials, College of Chemical Engineering and Materials Science, Department of Chemistry, College of Sciences, Tianjin University of Science & Technology, Tianjin, 300457, China
| | - Guang-Yue Li
- Department of Applied Chemistry, College of Chemical Engineering, North China University of Science and Technology, Tangshan, 063210, China
| | - Di Zhu
- Tianjin Changlu Advanced Materials Research Institute Co., Ltd., Tianjin, 300350, China
| | - Guangrui He
- Tianjin Changlu Advanced Materials Research Institute Co., Ltd., Tianjin, 300350, China
| | - Hai-Fu Zhang
- Department of Materials, College of Chemical Engineering and Materials Science, Department of Chemistry, College of Sciences, Tianjin University of Science & Technology, Tianjin, 300457, China
| | - Ke-Ke Xie
- Department of Materials, College of Chemical Engineering and Materials Science, Department of Chemistry, College of Sciences, Tianjin University of Science & Technology, Tianjin, 300457, China
| | - Bowen Cheng
- Department of Materials, College of Chemical Engineering and Materials Science, Department of Chemistry, College of Sciences, Tianjin University of Science & Technology, Tianjin, 300457, China
- State Key Laboratory of Biobased Fiber Manufacturing Technology, Tianjin University of Science and Technology, Tianjin, 300457, P. R. China
| | - Qian Zhao
- Department of Materials, College of Chemical Engineering and Materials Science, Department of Chemistry, College of Sciences, Tianjin University of Science & Technology, Tianjin, 300457, China
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10
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Li H, Dilipkumar A, Abubakar S, Zhao D. Covalent organic frameworks for CO 2 capture: from laboratory curiosity to industry implementation. Chem Soc Rev 2023; 52:6294-6329. [PMID: 37591809 DOI: 10.1039/d2cs00465h] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/19/2023]
Abstract
CO2 concentration in the atmosphere has increased by about 40% since the 1960s. Among various technologies available for carbon capture, adsorption and membrane processes have been receiving tremendous attention due to their potential to capture CO2 at low costs. The kernel for such processes is the sorbent and membrane materials, and tremendous progress has been made in designing and fabricating novel porous materials for carbon capture. Covalent organic frameworks (COFs), a class of porous crystalline materials, are promising sorbents for CO2 capture due to their high surface area, low density, controllable pore size and structure, and preferable stabilities. However, the absence of synergistic developments between materials and engineering processes hinders achieving the qualitative leap for net-zero emissions. Considering the lack of a timely review on the combination of state-of-the-art COFs and engineering processes, in this Tutorial Review, we emphasize the developments of COFs for meeting the challenges of carbon capture and disclose the strategies of fabricating COFs for realizing industrial implementation. Moreover, this review presents a detailed and basic description of the engineering processes and industrial status of carbon capture. It highlights the importance of machine learning in integrating simulations of molecular and engineering levels. We aim to stimulate both academia and industry communities for joined efforts in bringing COFs to practical carbon capture.
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Affiliation(s)
- He Li
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore.
| | - Akhil Dilipkumar
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore.
| | - Saifudin Abubakar
- ExxonMobil Asia Pacific Pte. Ltd., 1 HarbourFront Place, #06-00 HarbourFront Tower 1, 098633, Singapore
| | - Dan Zhao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore.
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Mastropietro TF. Metal-organic frameworks and plastic: an emerging synergic partnership. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2023; 24:2189890. [PMID: 37007671 PMCID: PMC10054298 DOI: 10.1080/14686996.2023.2189890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/04/2023] [Accepted: 03/08/2023] [Indexed: 06/19/2023]
Abstract
Mismanagement of plastic waste results in its ubiquitous presence in the environment. Despite being durable and persistent materials, plastics are reduced by weathering phenomena into debris with a particle size down to nanometers. The fate and ecotoxicological effects of these solid micropollutants are not fully understood yet, but they are raising increasing concerns for the environment and people's health. Even if different current technologies have the potential to remove plastic particles, the efficiency of these processes is modest, especially for nanoparticles. Metal-organic frameworks (MOFs) are crystalline nano-porous materials with unique properties, have unique properties, such as strong coordination bonds, large and robustus porous structures, high accessible surface areas and adsorption capacity, which make them suitable adsorbent materials for micropollutants. This review examines the preliminary results reported in literature indicating that MOFs are promising adsorbents for the removal of plastic particles from water, especially when MOFs are integrated in porous composite materials or membranes, where they are able to assure high removal efficiency, superior water flux and antifouling properties, even in the presence of other dissolved co-pollutants. Moreover, a recent trend for the alternative preparation of MOFs starting from plastic waste, especially polyethylene terephthalate, as a sustainable source of organic linkers is also reviewed, as it represents a promising route for mitigating the impact of the costs deriving from the widescale MOFs production and application. This connubial between MOFs and plastic has the potential to contribute at implementing a more effective waste management and the circular economy principles in the polymer life cycle.
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Zhang Z, Shi X, Wang X, Zhang Z, Wang Y. Encapsulating Covalent Organic Frameworks (COFs) in Cellulose Aerogels for Efficient Iodine Uptake. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Khalil S, Meyer MD, Alazmi A, Samani MHK, Huang PC, Barnes M, Marciel AB, Verduzco R. Enabling Solution Processable COFs through Suppression of Precipitation during Solvothermal Synthesis. ACS NANO 2022; 16:20964-20974. [PMID: 36413762 DOI: 10.1021/acsnano.2c08580] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Covalent organic frameworks (COFs) are crystalline, nanoporous materials of interest for various applications, but current COF synthetic routes lead to insoluble aggregates which precludes processing for practical implementation. Here, we report a COF synthesis method that produces a stable, homogeneous suspension of crystalline COF nanoparticles that enables the preparation of COF monoliths, membranes, and films using conventional solution-processing techniques. Our approach involves the use of a polar solvent, diacid catalyst, and slow reagent mixing procedure at elevated temperatures which altogether enable access to crystalline COF nanoparticle suspension that does not aggregate or precipitate when kept at elevated temperatures. On cooling, the suspension undergoes a thermoreversible gelation transition to produce crystalline and highly porous COF materials. We further show that the modified synthesis approach is compatible with various COF chemistries, including both large- and small-pore imine COFs, hydrazone-linked COFs, and COFs with rhombic and hexagonal topologies, and in each case, we demonstrate that the final product has excellent crystallinity and porosity. The final materials contain both micro- and macropores, and the total porosity can be tuned through variation of sample annealing. Dynamic light scattering measurements reveal the presence of COF nanoparticles that grow with time at room temperature, transitioning from a homogeneous suspension to a gel. Finally, we prepare imine COF membranes and measure their rejection of polyethylene glycol (PEG) polymers and oligomers, and these measurements exhibit size-dependent rejection and adsorption of PEG solutes. This work demonstrates a versatile processing strategy to create crystalline and porous COF materials using solution-processing techniques and will greatly advance the development of COFs for various applications.
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Affiliation(s)
- Safiya Khalil
- Department of Chemical and Biomolecular Engineering, Rice University, 6100 Main Street, MS-362, Houston, Texas 77005, United States
| | - Matthew D Meyer
- Shared Equipment Authority, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Abdullah Alazmi
- Department of Chemical and Biomolecular Engineering, Rice University, 6100 Main Street, MS-362, Houston, Texas 77005, United States
| | - Mohammad H K Samani
- Department of Chemical and Biomolecular Engineering, Rice University, 6100 Main Street, MS-362, Houston, Texas 77005, United States
| | - Po-Chun Huang
- Department of Chemical and Biomolecular Engineering, Rice University, 6100 Main Street, MS-362, Houston, Texas 77005, United States
| | - Morgan Barnes
- Department of Materials Science and NanoEngineering, Rice University, 6100 Main Street, MS-364, Houston, Texas 77005, United States
| | - Amanda B Marciel
- Department of Chemical and Biomolecular Engineering, Rice University, 6100 Main Street, MS-362, Houston, Texas 77005, United States
| | - Rafael Verduzco
- Department of Chemical and Biomolecular Engineering, Rice University, 6100 Main Street, MS-362, Houston, Texas 77005, United States
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Department of Materials Science and NanoEngineering, Rice University, 6100 Main Street, MS-364, Houston, Texas 77005, United States
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