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Alemayehu HG, Hou J, Qureshi AA, Yao Y, Sun Z, Yan M, Wang C, Liu L, Tang Z, Li L. Discrimination of Xylene Isomers by Precisely Tuning the Interlayer Spacing of Reduced Graphene Oxide Membrane. ACS NANO 2024; 18:18673-18682. [PMID: 38951732 DOI: 10.1021/acsnano.4c05461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/03/2024]
Abstract
Separating xylene isomers is a challenging task due to their similar physical and chemical properties. In this study, we developed a molecular sieve incorporating a reduced graphene oxide (rGO) membrane for the precise differentiation of xylene isomers. We fabricated GO membranes using a vacuum filtration technique followed by thermal-induced reduction to produce rGO membranes with precisely controllable interlayer spacing. Notably, we could finely tune the interlayer spacing of the rGO membrane from 8.0 to 5.0 Å by simply varying the thermal reduction temperature. We investigated the reverse osmosis separation ability of the rGO membranes for xylene isomers and found that the rGO membrane with an interlayer spacing of 6.1 Å showed a high single component permeance of 0.17 and 0.04 L m-2 h-1 bar-1 for para- and ortho-xylene, respectively, exhibiting clear permselectivity. The separation factor reached 3.4 and 2.8 when 90:10 and 50:50 feed mixtures were used, respectively, with permeance 1 order of magnitude higher than that of current state-of-the-art reverse osmosis membranes. Additionally, the membrane showed negligible permeance and selectivity decay even after continuous operation for more than 5 days, suggesting commendable membrane resistance to solvent swelling and operating pressure.
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Affiliation(s)
- Haftu Gebrekiros Alemayehu
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Centre for Nanoscience and Technology, Beijing 100190, China
- School of Nanoscience and Engineering, University of Chinese Academy of Sciences, 19 A Yuquan Rd, Shijingshan District, Beijing 100049, China
- Department of Chemistry, College of Natural Sciences, Arba Minch University, PO Box 21, Arba Minch, Ethiopia
| | - Junjun Hou
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Centre for Nanoscience and Technology, Beijing 100190, China
- School of Nanoscience and Engineering, University of Chinese Academy of Sciences, 19 A Yuquan Rd, Shijingshan District, Beijing 100049, China
| | - Adeel Ahmad Qureshi
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Centre for Nanoscience and Technology, Beijing 100190, China
- School of Nanoscience and Engineering, University of Chinese Academy of Sciences, 19 A Yuquan Rd, Shijingshan District, Beijing 100049, China
| | - Yongji Yao
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Centre for Nanoscience and Technology, Beijing 100190, China
| | - Zhifei Sun
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Centre for Nanoscience and Technology, Beijing 100190, China
- School of Nanoscience and Engineering, University of Chinese Academy of Sciences, 19 A Yuquan Rd, Shijingshan District, Beijing 100049, China
| | - Mingzheng Yan
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Centre for Nanoscience and Technology, Beijing 100190, China
- School of Nanoscience and Engineering, University of Chinese Academy of Sciences, 19 A Yuquan Rd, Shijingshan District, Beijing 100049, China
| | - Congying Wang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Centre for Nanoscience and Technology, Beijing 100190, China
- School of Nanoscience and Engineering, University of Chinese Academy of Sciences, 19 A Yuquan Rd, Shijingshan District, Beijing 100049, China
| | - Luqi Liu
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Centre for Nanoscience and Technology, Beijing 100190, China
- School of Nanoscience and Engineering, University of Chinese Academy of Sciences, 19 A Yuquan Rd, Shijingshan District, Beijing 100049, China
| | - Zhiyong Tang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Centre for Nanoscience and Technology, Beijing 100190, China
- School of Nanoscience and Engineering, University of Chinese Academy of Sciences, 19 A Yuquan Rd, Shijingshan District, Beijing 100049, China
| | - Lianshan Li
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Centre for Nanoscience and Technology, Beijing 100190, China
- School of Nanoscience and Engineering, University of Chinese Academy of Sciences, 19 A Yuquan Rd, Shijingshan District, Beijing 100049, China
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2
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Shaharudin MR, Williams CD, Achari A, Nair RR, Carbone P. Decoding the Interplay between Topology and Surface Charge in Graphene Oxide Membranes During Humidity Induced Swelling. ACS NANO 2023; 17:21923-21934. [PMID: 37917940 PMCID: PMC10655246 DOI: 10.1021/acsnano.3c08260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/26/2023] [Accepted: 10/27/2023] [Indexed: 11/04/2023]
Abstract
Graphene oxide (GO) membranes are known to have a complex morphology that depends on the degree of oxidation of the graphene flake and the membrane preparation technique. In this study, using Grand Canonical Monte Carlo simulations, we investigate the mechanism of swelling of GO membranes exposed to different relative humidity (RH) values and show how this is intimately related to the graphene surface chemistry. We show that the structure of the GO membrane changes while the membrane adsorbs water from the environment and that graphene oxide flakes become charged as the membrane is loaded with water and swells. A detailed comparison between simulation and experimental adsorption data reveals that the flake surface charge drives the water adsorption mechanism at low RH when the membrane topology is still disordered and the internal pores are small and asymmetric. As the membrane is exposed to higher RH (80%), the flake acquires more surface charge as more oxide groups deprotonate, and the pores grow in size, yet maintain their disordered geometry. Only for very high relative humidity (98%) does the membrane undergo structural changes. At this level of humidity, the pores in the membrane become slit-like but the flake surface charge remains constant. Our results unveil a very complex mechanism of swelling and show that a single molecular model cannot fully capture the ever-changing chemistry and morphology of the membrane as it swells. Our computational procedure provides the first atomically resolved insight into the GO membrane structure of experimental samples.
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Affiliation(s)
- Mohd Rafie
bin Shaharudin
- Department
of Chemical Engineering, School of Engineering, The University of Manchester, Booth Street East, M13 9PL Manchester, United Kingdom
| | - Christopher D. Williams
- Division
of Pharmacy and Optometry, School of Health Sciences, The University of Manchester, Oxford Road, M13 9PT Manchester, United Kingdom
| | - Amritroop Achari
- Department
of Chemical Engineering, School of Engineering, The University of Manchester, Booth Street East, M13 9PL Manchester, United Kingdom
- National
Graphene Institute, The University of Manchester, Booth Street East, M13 9PL Manchester, United Kingdom
| | - Rahul R. Nair
- Department
of Chemical Engineering, School of Engineering, The University of Manchester, Booth Street East, M13 9PL Manchester, United Kingdom
- National
Graphene Institute, The University of Manchester, Booth Street East, M13 9PL Manchester, United Kingdom
| | - Paola Carbone
- Department
of Chemical Engineering, School of Engineering, The University of Manchester, Booth Street East, M13 9PL Manchester, United Kingdom
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3
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Eliseev AA, Gurianov KE, Poyarkov AA, Komkova MA, Sadilov IS, Chumakov AP, Petukhov DI. Tunable Sieving of Ions Using Graphene Oxide: Swelling Peculiarities in Free-Standing and Confined States. NANO LETTERS 2023; 23:9719-9725. [PMID: 37889876 DOI: 10.1021/acs.nanolett.3c02247] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/29/2023]
Abstract
The paper describes a comparative study of swelling processes in free-standing graphene oxide (GO) membranes and GO laminates encapsulated with epoxy glue. For free-standing graphene oxide membranes, a huge variation in d-spacing in the range of 8-12 Å depending on the ambient humidity and from 12 to >30 Å depending on the electrolyte type and its concentration was revealed using direct in situ and in operando XRD studies. Limited swelling at various humidity levels as well as in electrolyte solution with low constriction/expansion of epoxy-encapsulated GO is counterposed to that of free-standing graphene oxides. The swelling suppression was explained by both physical constriction and the intercalation of amines into GO laminates, which was proved by local EDX studies. This results in ion diffusivity variation for over 2 orders of magnitude in free-standing and constrained graphene oxide membranes and provides factual evidence for tunable sieving of ions with confined graphene oxides.
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Affiliation(s)
- Andrei A Eliseev
- Department of Materials Science, Lomonosov Moscow State University, Leninskie Gory, Moscow 119991, Russia
- Chemistry Department, Lomonosov Moscow State University, Leninskie Gory 1-3, Moscow 119991, Russia
| | - Konstantin E Gurianov
- Department of Materials Science, Lomonosov Moscow State University, Leninskie Gory, Moscow 119991, Russia
| | - Andrei A Poyarkov
- Department of Materials Science, Lomonosov Moscow State University, Leninskie Gory, Moscow 119991, Russia
| | - Maria A Komkova
- Chemistry Department, Lomonosov Moscow State University, Leninskie Gory 1-3, Moscow 119991, Russia
| | - Ilia S Sadilov
- Department of Materials Science, Lomonosov Moscow State University, Leninskie Gory, Moscow 119991, Russia
| | - Andrei P Chumakov
- ESRF - The European Synchrotron, Avenue des Martyrs 71, Grenoble 38000, France
| | - Dmitrii I Petukhov
- Department of Materials Science, Lomonosov Moscow State University, Leninskie Gory, Moscow 119991, Russia
- Chemistry Department, Lomonosov Moscow State University, Leninskie Gory 1-3, Moscow 119991, Russia
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4
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Cao Y, Zu L, Du X, Franks GV, Liang Q, Li D. Solvent Effect on the Nanotextural Formation of Reduced Graphene Oxide Membranes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:15260-15267. [PMID: 37851543 DOI: 10.1021/acs.langmuir.3c01957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2023]
Abstract
Solvent is involved in many wet-chemical synthesis and bottom-up assembly processes. Understanding its influence on the nanotextural formation of the resultant assemblies is essential for the design and control of the properties for targeted applications. With wet chemically reduced graphene oxide (rGO) membranes as a materials platform, this study investigates the solvent effect on nanotexture formation in 2D nanomaterial-based membranes through light scattering and electrochemical characterization. Our finding indicates that the nanotexture of the resultant rGO membrane is largely correlated to the dielectric constant of the solvent. Specifically, solvents with higher dielectric constants yield rGO membranes with more wrinkled, loosely stacked, and less graphitized structures. In contrast, solvents with a lower dielectric constant tend to yield densely stacked structures with larger graphitized domains. Our finding underscores the important role of solvents in wet processing and nanoengineering of 2D nanomaterial-based membranes and provides valuable insights for their controlled synthesis and application.
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Affiliation(s)
- Yang Cao
- Department of Chemical Engineering, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Lianhai Zu
- Department of Chemical Engineering, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Xiaoyang Du
- Department of Chemical Engineering, University of Melbourne, Parkville, Victoria 3010, Australia
| | - George V Franks
- Department of Chemical Engineering, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Qinghua Liang
- Department of Chemical Engineering, University of Melbourne, Parkville, Victoria 3010, Australia
- Key Laboratory of Rare Earths, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, Jiangxi 341000, China
| | - Dan Li
- Department of Chemical Engineering, University of Melbourne, Parkville, Victoria 3010, Australia
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5
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Wang Z, Nakagawa K, Guan K, Song Q, Zhou S, Tanaka S, Okamoto Y, Matsuoka A, Kamio E, Li G, Li MMJ, Yoshioka T, Matsuyama H. Two-Dimensional Interlayer Space Induced Horizontal Transformation of Metal-Organic Framework Nanosheets for Highly Permeable Nanofiltration Membranes. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2300672. [PMID: 37072832 DOI: 10.1002/smll.202300672] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 03/23/2023] [Indexed: 05/03/2023]
Abstract
Laminar membranes comprising graphene oxide (GO) and metal-organic framework (MOF) nanosheets benefit from the regular in-plane pores of MOF nanosheets and thus can support rapid water transport. However, the restacking and agglomeration of MOF nanosheets during typical vacuum filtration disturb the stacking of GO sheets, thus deteriorating the membrane selectivity. Therefore, to fabricate highly permeable MOF nanosheets/reduced GO (rGO) membranes, a two-step method is applied. First, using a facile solvothermal method, ZnO nanoparticles are introduced into the rGO laminate to stabilize and enlarge the interlayer spacing. Subsequently, the ZnO/rGO membrane is immersed in a solution of tetrakis(4-carboxyphenyl)porphyrin (H2 TCPP) to realize in situ transformation of ZnO into Zn-TCPP in the confined interlayer space of rGO. By optimizing the transformation time and mass loading of ZnO, the obtained Zn-TCPP/rGO laminar membrane exhibits preferential orientation of Zn-TCPP, which reduces the pathway tortuosity for small molecules. As a result, the composite membrane achieves a high water permeance of 19.0 L m-2 h-1 bar-1 and high anionic dye rejection (>99% for methyl blue).
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Affiliation(s)
- Zheng Wang
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan
| | - Keizo Nakagawa
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan
- Research Center for Membrane and Film Technology, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan
| | - Kecheng Guan
- Research Center for Membrane and Film Technology, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan
| | - Qiangqiang Song
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan
| | - Siyu Zhou
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan
| | - Shunsuke Tanaka
- Department of Chemical, Energy and Environmental Engineering, Faculty of Environmental and Urban Engineering, Kansai University, 3-3-35 Yamate-cho, Suita, Osaka, 564-8680, Japan
| | - Yasunao Okamoto
- Research Center for Membrane and Film Technology, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan
| | - Atsushi Matsuoka
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan
- Research Center for Membrane and Film Technology, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan
| | - Eiji Kamio
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan
- Research Center for Membrane and Film Technology, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan
- Center for Environmental Management, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan
| | - Guangchao Li
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon, Hong Kong, 999077, P. R. China
| | - Molly Meng-Jung Li
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon, Hong Kong, 999077, P. R. China
| | - Tomohisa Yoshioka
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan
- Research Center for Membrane and Film Technology, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan
| | - Hideto Matsuyama
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan
- Research Center for Membrane and Film Technology, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan
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6
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Huang J, Zhang Q, Yang Z, Hu H, Manuka M, Zhao Y, Wang X, Wang W, Yang R, Jian S, Tan H, Li X, Lv Y, Tang P, Ma B. Assembling phenyl-modified colloidal silica on graphene oxide towards ethanol redispersible graphene oxide powder. RSC Adv 2023; 13:20081-20092. [PMID: 37409034 PMCID: PMC10318485 DOI: 10.1039/d3ra02256k] [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: 04/05/2023] [Accepted: 06/16/2023] [Indexed: 07/07/2023] Open
Abstract
Recently, ethanol has shown promising potential in the large-scale reduction of graphene oxide (GO) into graphene. However, dispersion of GO powder in ethanol is a challenge due to its poor affinity, which hinders permeation and intercalation of ethanol between GO molecule layers. In this paper, phenyl-modified colloidal silica nanospheres (PSNS) were synthesized by phenyl-tri-ethoxy-silane (PTES) and tetra-ethyl ortho-silicate (TEOS) using a sol-gel method. PSNS was then assembled onto a GO surface to form a PSNS@GO structure by possible non-covalent π-π stacking interactions between the phenyl groups and GO molecules. The surface morphology, chemical composition, and dispersion stability were analyzed by scanning electron microscopy, Fourier transform infrared spectroscopy, thermogravimetry, Raman spectroscopy, X-ray diffractometry, nuclear magnetic resonance, and particle sedimentation test. The results showed that the as-assembled PSNS@GO suspension had excellent dispersion stability with an optimal PSNS concentration of 5 vol% PTES. With the optimized PSNS@GO, ethanol can permeate between the GO layers and intercalate along with PSNS particles via formation of hydrogen bonds between assembled PSNS on GO and ethanol, achieving a stable dispersion of GO in ethanol. The optimized PSNS@GO powder remained redispersible after drying and milling according to this interaction mechanism which is favorable for large scale reduction processes. Higher PTES concentration may result in agglomeration of PSNS and formation of wrapping structures of PSNS@GO after drying and worsen its dispersion capability.
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Affiliation(s)
- Jian Huang
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology Wuhan 430070 China
| | - Qian Zhang
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology Wuhan 430070 China
| | - Zhengcai Yang
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology Wuhan 430070 China
| | - Hailong Hu
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology Wuhan 430070 China
| | - Mesfin Manuka
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology Wuhan 430070 China
| | - Yuting Zhao
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology Wuhan 430070 China
| | - Xin Wang
- College of Civil and Transportation Engineering, Shenzhen University Shenzhen 518000 China
| | - Wufeng Wang
- Wuhan University of Technology Advanced Engineering Technology Research Institute of Zhongshan City Zhongshan 528400 China
| | - Rong Yang
- Wuhan University of Technology Advanced Engineering Technology Research Institute of Zhongshan City Zhongshan 528400 China
| | - Shouwei Jian
- School of Materials Science and Engineering, Wuhan University of Technology Wuhan 430070 China
| | - Hongbo Tan
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology Wuhan 430070 China
| | - Xiangguo Li
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology Wuhan 430070 China
| | - Yang Lv
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology Wuhan 430070 China
| | - Pei Tang
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology Wuhan 430070 China
| | - Baoguo Ma
- School of Materials Science and Engineering, Wuhan University of Technology Wuhan 430070 China
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7
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Cao Y, Xiong Z, Liang Q, Jiang WJ, Xia F, Du X, Zu L, Mudie S, Franks GV, Li D. Subnanometric Stacking of Two-Dimensional Nanomaterials: Insights from the Nanotexture Evolution of Dense Reduced Graphene Oxide Membranes. ACS NANO 2023; 17:5072-5082. [PMID: 36802483 DOI: 10.1021/acsnano.3c00155] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Assembling two-dimensional (2D) nanomaterials into laminar membranes with a subnanometer (subnm) interlayer spacing provides a material platform for studying a range of nanoconfinement effects and exploring the technological applications related to the transport of electrons, ions and molecules. However, the strong tendency for 2D nanomaterials to restack to their bulk crystalline-like structure makes it challenging to control their spacing at the subnm scale. It is thus necessary to understand what nanotextures can be formed at the subnm scale and how they can be engineered experimentally. In this work, with dense reduced graphene oxide membranes as a model system, we combine synchrotron-based X-ray scattering and ionic electrosorption analysis to reveal that their subnanometric stacking can result in a hybrid nanostructure of subnm channels and graphitized clusters. We demonstrate that the ratio of these two structural units, their sizes and connectivity can be engineered by stacking kinetics through the reduction temperature to allow the realization of high-performance compact capacitive energy storage. This work highlights the great complexity of subnm stacking of 2D nanomaterials and provides potential methods to engineer their nanotextures at will.
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Affiliation(s)
- Yang Cao
- Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Zhiyuan Xiong
- Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Qinghua Liang
- Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Wen-Jie Jiang
- Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Fang Xia
- Harry Butler Institute, Murdoch University, Perth, Western Australia 6150, Australia
| | - Xiaoyang Du
- Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Lianhai Zu
- Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Stephen Mudie
- Small- and Wide-Angle X-ray Scattering Beamline, Australian Synchrotron, Clayton, Victoria 3168, Australia
| | - George V Franks
- Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Dan Li
- Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
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8
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Kang J, Ko Y, Kim JP, Kim JY, Kim J, Kwon O, Kim KC, Kim DW. Microwave-assisted design of nanoporous graphene membrane for ultrafast and switchable organic solvent nanofiltration. Nat Commun 2023; 14:901. [PMID: 36797272 PMCID: PMC9935848 DOI: 10.1038/s41467-023-36524-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 02/02/2023] [Indexed: 02/18/2023] Open
Abstract
Layered two-dimensional materials can potentially be utilized for organic solvent nanofiltration (OSN) membrane fabrication owing to their precise molecular sieving by the interlayer structure and excellent stability in harsh conditions. Nevertheless, the extensive tortuosity of nanochannels and bulky solvent molecules impede rapid permeability. Herein, nanoporous graphene (NG) with a high density of sp2 carbon domain was synthesized via sequential thermal pore activation of graphene oxide (GO) and microwave-assisted reduction. Due to the smooth sp2 carbon domain surfaces and dense nanopores, the microwave-treated nanoporous graphene membrane exhibited ultrafast organic solvent permeance (e.g., IPA: 2278 LMH/bar) with excellent stability under practical cross-flow conditions. Furthermore, the membrane molecular weight cut-off (MWCO) is switchable from 500 Da size of molecule to sub-nanometer-size molecules depending on the solvent type, and this switching occurs spontaneously with solvent change. These properties indicate feasibility of multiple (both binary and ternary) organic mixture separation using a single membrane. The nanochannel structure effect on solvent transport is also investigated using computation calculations.
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Affiliation(s)
- Junhyeok Kang
- grid.15444.300000 0004 0470 5454Department of Chemical and Biomolecular Engineering, Yonsei University, Yonsei-ro 50, Seodaemun-gu, Seoul (03722) Republic of Korea
| | - Yeongnam Ko
- grid.258676.80000 0004 0532 8339Department of Chemical Engineering, Konkuk University, Seoul, 05029 Republic of Korea
| | - Jeong Pil Kim
- grid.15444.300000 0004 0470 5454Department of Chemical and Biomolecular Engineering, Yonsei University, Yonsei-ro 50, Seodaemun-gu, Seoul (03722) Republic of Korea
| | - Ju Yeon Kim
- grid.15444.300000 0004 0470 5454Department of Chemical and Biomolecular Engineering, Yonsei University, Yonsei-ro 50, Seodaemun-gu, Seoul (03722) Republic of Korea
| | - Jiwon Kim
- grid.15444.300000 0004 0470 5454Department of Chemical and Biomolecular Engineering, Yonsei University, Yonsei-ro 50, Seodaemun-gu, Seoul (03722) Republic of Korea
| | - Ohchan Kwon
- grid.15444.300000 0004 0470 5454Department of Chemical and Biomolecular Engineering, Yonsei University, Yonsei-ro 50, Seodaemun-gu, Seoul (03722) Republic of Korea
| | - Ki Chul Kim
- grid.258676.80000 0004 0532 8339Department of Chemical Engineering, Konkuk University, Seoul, 05029 Republic of Korea
| | - Dae Woo Kim
- Department of Chemical and Biomolecular Engineering, Yonsei University, Yonsei-ro 50, Seodaemun-gu, Seoul (03722), Republic of Korea.
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9
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Liu B, Zhang J, Han Q, Shu Y, Wang L, Li H, Li L, Wang Z. Redispersion mechanisms of 2D nanosheets: combined role of intersheet contact and surface chemistry. NANOSCALE 2023; 15:3159-3168. [PMID: 36723369 DOI: 10.1039/d2nr05471j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Redispersion behavior recovers the important features of nanomaterials and thus holds great promise for exciting applications of nanomaterials in different fields. In contrast to the redispersion of nanoparticles, which is mainly determined by surface chemistry, the redispersion of 2D nanosheets could be more complicated and is not well understood. In the present study, the redispersion behavior of 2D NMs was investigated by selecting representative nanosheets, MoS2, graphene oxide and their derivatives with both experimental methods and molecular dynamics (MD) simulations. The good agreement between experiments and MD simulations suggested that the redispersion in response to surface chemistry was regulated by the alignment configurations of the nanosheets. More importantly, we revealed that the difference in the hydrophilicity properties is responsible for the distinctive separation distances of the 1T and 2H MoS2 nanosheets. Appropriately adjusting the alignment configuration of the nanosheets can alter the effect of surface hydrophilicity on the redispersion behavior. Based on these fundamental findings, we identified three distinctive zones for the redispersion tendency of the 2D nanosheets with different surface hydrophilicity, Hamaker constants and intersheet contacts. As one of the implications, the results serve as a prescreening for the stability of the 2D restacking-based membrane. For the first time, the study systematically reported the interplay of intersheet configuration and surface chemistry in the redispersion of nanosheets, which provides a theoretical foundation for the processing and applications of 2D nanomaterials.
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Affiliation(s)
- Bei Liu
- School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Jingyan Zhang
- Department of Material Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Qi Han
- School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Yufei Shu
- School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Li Wang
- School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Hui Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Lei Li
- Department of Material Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Zhongying Wang
- School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
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10
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Mohammed S. Graphene oxide: A mini-review on the versatility and challenges as a membrane material for solvent-based separation. CHEMICAL ENGINEERING JOURNAL ADVANCES 2022. [DOI: 10.1016/j.ceja.2022.100392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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11
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Gu YH, Yan X, Chen Y, Guo XJ, Lang WZ. Exquisite manipulation of two-dimensional laminar graphene oxide (GO) membranes via layer-by-layer self-assembly method with cationic dyes as cross-linkers. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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12
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Wang Z, Xu C, Fu Q, Nair S. Transport Properties of Graphene Oxide Nanofiltration Membranes: Electrokinetic Modeling and Experimental Validation. AIChE J 2022. [DOI: 10.1002/aic.17865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Zhongzhen Wang
- School of Chemical & Biomolecular Engineering Georgia Institute of Technology Atlanta GA USA
- Renewable Bioproducts Institute Georgia Institute of Technology Atlanta GA USA
| | - Chunyan Xu
- School of Civil and Environmental Engineering Georgia Institute of Technology Atlanta GA USA
| | - Qiang Fu
- School of Chemical & Biomolecular Engineering Georgia Institute of Technology Atlanta GA USA
- Renewable Bioproducts Institute Georgia Institute of Technology Atlanta GA USA
| | - Sankar Nair
- School of Chemical & Biomolecular Engineering Georgia Institute of Technology Atlanta GA USA
- Renewable Bioproducts Institute Georgia Institute of Technology Atlanta GA USA
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13
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Zhang T, Sun L, Sun X, Dong H, Yu H, Yu H. Radical and non-radical cooperative degradation in metal-free electro-Fenton based on nitrogen self-doped biochar. JOURNAL OF HAZARDOUS MATERIALS 2022; 435:129063. [PMID: 35650745 DOI: 10.1016/j.jhazmat.2022.129063] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 04/17/2022] [Accepted: 04/30/2022] [Indexed: 06/15/2023]
Abstract
To achieve sustainable metal-free electron-Fenton, N self-doped biochar air-cathode (BCAC) was prepared by pyrolyzing coffee residues. During the pyrolysis process, the endogenous N transformed from edge-doping to graphite-doping. Particularly, N vacancies started to evolve when the peak temperature exceeded 700 °C. A high Tetracycline removal rate of 70.42% was obtained on the BCAC at the current density of 4 mA cm-2. Quenching tests incorporated with ESR spectroscopy were adopted to identify the specific oxidants produced on the cathode. The results showed that •OH (37.36%), •O2- (29.67%) and 1O2 (24.17%) played comparable role in the tetracycline removal, suggesting the coexist of radical and non-radical oxidants in our electro-Fenton system. According to the structure characterization and the DFT calculation, graphitic N was suggested as the critical site for H2O2 generation, and both graphitic N and pyridinic N were electroactive sites for H2O2 activation to •OH. Graphitic N and N vacancies with stronger capabilities in O2 adsorption and electron-trapping were proposed as the electroactive sites for 1O2 and •O2- formation. This work predicts a novel electro-Fenton process with cooperative radical and non-radical degradation on N self-doped carbonaceous catalysts at a mild condition, which is extremely meaningful for boosting sustainable electro-Fenton technology.
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Affiliation(s)
- Ting Zhang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin 300350, China
| | - Lu Sun
- Institute of Modern Optics, Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology, Nankai University, Tianjin 300350, China
| | - Xiaohong Sun
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin 300350, China
| | - Heng Dong
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin 300350, China.
| | - Han Yu
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin 300350, China; Department of Water Resources Engineering, Lund University, Lund 22100, Sweden
| | - Hongbing Yu
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin 300350, China
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14
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Multilayered graphene oxide membranes for bioethanol purification: Microscopic insight from molecular simulation. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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15
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Guan K, Ushio K, Nakagawa K, Shintani T, Yoshioka T, Matsuoka A, Kamio E, Jin W, Matsuyama H. Integration of thin film composite graphene oxide membranes for solvent resistant nanofiltration. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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16
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Foller T, Madauß L, Ji D, Ren X, De Silva KKH, Musso T, Yoshimura M, Lebius H, Benyagoub A, Kumar PV, Schleberger M, Joshi R. Mass Transport via In-Plane Nanopores in Graphene Oxide Membranes. NANO LETTERS 2022; 22:4941-4948. [PMID: 35687040 DOI: 10.1021/acs.nanolett.2c01615] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Angstrom-confined solvents in 2D laminates can travel through interlayer spacings, through gaps between adjacent sheets, and via in-plane pores. Among these, experimental access to investigate the mass transport through in-plane pores is lacking. Our experiments allow an understanding of this mass transport via the controlled variation of oxygen functionalities, size and density of in-plane pores in graphene oxide membranes. Contrary to expectations, our transport experiments show that higher in-plane pore densities may not necessarily lead to higher water permeability. We observed that membranes with a high in-plane pore density but a low amount of oxygen functionalities exhibit a complete blockage of water. However, when water-ethanol mixtures with a weaker hydrogen network are used, these membranes show an enhanced permeation. Our combined experimental and computational results suggest that the transport mechanism is governed by the attraction of the solvents toward the pores with functional groups and hindered by the strong hydrogen network of water formed under angstrom confinement.
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Affiliation(s)
- Tobias Foller
- School of Materials Science and Engineering, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Lukas Madauß
- Faculty for Physics and CENIDE, University of Duisburg-Essen, 47057 Duisburg, Germany
| | - Dali Ji
- School of Materials Science and Engineering, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Xiaojun Ren
- School of Materials Science and Engineering, University of New South Wales, Sydney, New South Wales 2052, Australia
| | | | - Tiziana Musso
- School of Materials Science and Engineering, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Masamichi Yoshimura
- Surface Science Laboratory, Toyota Technological Institute, Nagoya 468-8511, Japan
| | - Henning Lebius
- Normandie University, ENSICAEN, UNICAEN, CEA, CNRS, CIMAP, 14032 Caen, France
| | - Abdenacer Benyagoub
- Normandie University, ENSICAEN, UNICAEN, CEA, CNRS, CIMAP, 14032 Caen, France
| | - Priyank V Kumar
- School of Chemical Engineering, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Marika Schleberger
- Faculty for Physics and CENIDE, University of Duisburg-Essen, 47057 Duisburg, Germany
| | - Rakesh Joshi
- School of Materials Science and Engineering, University of New South Wales, Sydney, New South Wales 2052, Australia
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17
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Lin Z, Hu C, Liu Q, Zhang Q. Nanosheet‐templated graphene oxide membranes for fast molecule separation. AIChE J 2022. [DOI: 10.1002/aic.17818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Zhen Lin
- Department of Chemical and Biochemical Engineering, College of Chemistry & Chemical Engineering Xiamen University Xiamen China
- Department of Applied Physics School of Science, Aalto University, P.O. Box 15100 Espoo Finland
| | - Chuan Hu
- Department of Chemical and Biochemical Engineering, College of Chemistry & Chemical Engineering Xiamen University Xiamen China
| | - Qinglin Liu
- Department of Chemical and Biochemical Engineering, College of Chemistry & Chemical Engineering Xiamen University Xiamen China
| | - Qiugen Zhang
- Department of Chemical and Biochemical Engineering, College of Chemistry & Chemical Engineering Xiamen University Xiamen China
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18
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Wang A, Chen W, Xu H, Xie Z, Zheng X, Liu M, Wang Y, Geng N, Mu X, Ding M. Heterostructured MoS2 quantum dot/GO lamellar membrane with improved transport efficiency for organic solvents inspired by the Namib Desert beetle. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120402] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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19
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Ye C, Wang G, Yuan H, Li J, Ni K, Pan F, Guo M, Wu Y, Ji H, Zhang F, Qu B, Tang Z, Zhu Y. Microfluidic Oxidation of Graphite in Two Minutes with Capability of Real-Time Monitoring. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2107083. [PMID: 35167166 DOI: 10.1002/adma.202107083] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 01/28/2022] [Indexed: 06/14/2023]
Abstract
Graphite oxide and its exfoliated counterpart, graphene oxide, are important precursors for the large-scale production of graphene-based materials and many relevant applications. The current batch-style preparation of graphite oxide suffers from safety concern, long reaction time, and nonuniform product quality, due to the large volume of reactors and slow energy exchange. Reaction in microchannels can largely enhance the oxidization efficiency of graphite due to the enhanced mass transfer and extremely quick energy exchange, by which the controllable oxidization of graphite is achieved in ≈2 min. Comprehensive characterizations show that the graphene oxide obtained through the microfluidic strategy has features like those prepared in laboratory beakers and industrial reactors, yet with the higher oxidization degree and more epoxy groups. More importantly, the microfluidic preparation allows for on-line monitoring of the oxidization by Raman spectroscopy, ready for the dynamical control of reaction condition and product quality. The capability of continuous preparation is also demonstrated by showing the assembly of fibers and reduction of graphene oxide in microfluidic channels, and the applicability of graphene oxide prepared from the microfluidic strategy for thermally and electrically conductive films.
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Affiliation(s)
- Chuanren Ye
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, China
| | - Gang Wang
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210, China
- University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Hong Yuan
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, China
| | - Jieyun Li
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, China
| | - Kun Ni
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, China
| | - Fei Pan
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, China
| | - Minghao Guo
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, China
| | - Yanhong Wu
- The Sixth Element (Changzhou) Materials Technology Co., Ltd., Changzhou, 213000, China
| | - Hengxing Ji
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, China
| | - Fan Zhang
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Bill Qu
- The Sixth Element (Changzhou) Materials Technology Co., Ltd., Changzhou, 213000, China
| | - Zhiyong Tang
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, China
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210, China
- University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Yanwu Zhu
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, China
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20
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Shevate R, Shaffer DL. Large-Area 2D Covalent Organic Framework Membranes with Tunable Single-Digit Nanopores for Predictable Mass Transport. ACS NANO 2022; 16:2407-2418. [PMID: 35135189 DOI: 10.1021/acsnano.1c08804] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The potential of covalent organic frameworks (COFs) for molecular separations remains unrealized because of challenges transforming nanoscale COF materials into large-area functional COF membranes. Herein, we report the synthesis of large-area (64 cm2), ultrathin (24 nm), β-ketoenamine-linked 2D COFs using a facile interfacial polymerization technique. Angstrom-level control over single-digit nanopore size (1.4-2.0 nm) is achieved by direct integration of variable-length monomers. We apply these techniques to fabricate a series of large-area 2D COF membranes with variable thicknesses, pore sizes, and supporting materials. Tunable 2D COF properties enable control over COF membrane mass transport, resulting in high solvent fluxes and sharp molecular weight cutoffs. For organic solvent nanofiltration, the 2D COF membranes demonstrate an order-of-magnitude greater permeance than the state-of-the-art commercial polymeric membrane. We apply continuum models to quantify the dominance of pore passage resistance to mass transport over pore entrance resistance. A strong linear correlation between single-digit nanopore tortuosity and 2D COF thickness enables solvent fluxes to be predicted directly from solvent viscosity and COF membrane properties. Solvent-nanopore interactions characterized by the membrane critical interfacial tension also appear to influence mass transport. The pore flow transport model is validated by predicting the flux of a 52 nm thick COF membrane.
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Affiliation(s)
- Rahul Shevate
- Civil and Environmental Engineering Department, University of Houston, 4726 Calhoun Road, Houston, Texas 77204, United States
| | - Devin L Shaffer
- Civil and Environmental Engineering Department, University of Houston, 4726 Calhoun Road, Houston, Texas 77204, United States
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21
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Mechanistic study of pH effect on organic solvent nanofiltration using carboxylated covalent organic framework as a modeling and experimental platform. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120028] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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22
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Zhang W, Xu H, Xie F, Ma X, Niu B, Chen M, Zhang H, Zhang Y, Long D. General synthesis of ultrafine metal oxide/reduced graphene oxide nanocomposites for ultrahigh-flux nanofiltration membrane. Nat Commun 2022; 13:471. [PMID: 35079004 PMCID: PMC8789770 DOI: 10.1038/s41467-022-28180-4] [Citation(s) in RCA: 59] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 01/11/2022] [Indexed: 12/23/2022] Open
Abstract
Graphene-based membranes have great potential to revolutionize nanofiltration technology, but achieving high solute rejections at high water flux remains extremely challenging. Herein, a family of ultrafine metal oxide/reduced graphene oxide (rGO) nanocomposites are synthesized through a heterogenous nucleation and diffusion-controlled growth process for dye nanofiltration. The synthesis is based on the utilization of oxygen functional groups on GO surface as preferential active sites for heterogeneous nucleation, leading to the formation of sub-3 nm size, monodispersing as well as high-density loading of metal oxide nanoparticles. The anchored ultrafine nanoparticles could inhibit the wrinkling of the rGO nanosheet, forming highly stable colloidal solutions for the solution processing fabrication of nanofiltration membranes. By functioning as pillars, the nanoparticles remarkably increase both vertical interlayer spacing and lateral tortuous paths of the rGO membranes, offering a water permeability of 225 L m-2 h-1 bar-1 and selectivity up to 98% in the size-exclusion separation of methyl blue.
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Affiliation(s)
- Wanyu Zhang
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Hai Xu
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Fei Xie
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Xiaohua Ma
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Bo Niu
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China.
| | - Mingqi Chen
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Hongyu Zhang
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Yayun Zhang
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Donghui Long
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China.
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23
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Kadja GTM, Himma NF, Prasetya N, Sumboja A, Bazant MZ, Wenten IG. Advances and challenges in the development of nanosheet membranes. REV CHEM ENG 2021. [DOI: 10.1515/revce-2021-0004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Abstract
The development of highly efficient separation membranes utilizing emerging materials with controllable pore size and minimized thickness could greatly enhance the broad applications of membrane-based technologies. Having this perspective, many studies on the incorporation of nanosheets in membrane fabrication have been conducted, and strong interest in this area has grown over the past decade. This article reviews the development of nanosheet membranes focusing on two-dimensional materials as a continuous phase, due to their promising properties, such as atomic or nanoscale thickness and large lateral dimensions, to achieve improved performance compared to their discontinuous counterparts. Material characteristics and strategies to process nanosheet materials into separation membranes are reviewed, followed by discussions on the membrane performances in diverse applications. The review concludes with a discussion of remaining challenges and future outlook for nanosheet membrane technologies.
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Affiliation(s)
- Grandprix T. M. Kadja
- Division of Inorganic and Physical Chemistry , Institut Teknologi Bandung , Jalan Ganesha no. 10 , Bandung , 40132 , Indonesia
- Center for Catalytic and Reaction Engineering , Institut Teknologi Bandung , Jalan Ganesha no. 10 , Bandung , 40132 , Indonesia
- Research Center for Nanosciences and Nanotechnology , Institut Teknologi Bandung , Jalan Ganesha no. 10 , Bandung 40132 , Indonesia
| | - Nurul F. Himma
- Department of Chemical Engineering , Universitas Brawijaya , Jl. Mayjen Haryono 167 , Malang 65145 , Indonesia
| | - Nicholaus Prasetya
- Research Center for Nanosciences and Nanotechnology , Institut Teknologi Bandung , Jalan Ganesha no. 10 , Bandung 40132 , Indonesia
- Department of Chemical Engineering , Barrer Centre, Imperial College London , Exhibition Road , London SW7 2AZ , UK
| | - Afriyanti Sumboja
- Material Science and Engineering Research Group , Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung , Jl. Ganesha 10 , Bandung 40132 , Indonesia
- National Centre for Sustainable Transportation Technology , Institut Teknologi Bandung , Jalan Ganesha no. 10 , Bandung 40132 , Indonesia
| | - Martin Z. Bazant
- Department of Chemical Engineering , Massachusetts Institute of Technology , Cambridge , MA 02139 , USA
- Department of Mathematics , Massachusetts Institute of Technology , Cambridge , MA 02139 , USA
| | - I G. Wenten
- Research Center for Nanosciences and Nanotechnology , Institut Teknologi Bandung , Jalan Ganesha no. 10 , Bandung 40132 , Indonesia
- Department of Chemical Engineering , Institut Teknologi Bandung , Jalan Ganesha no. 10 , Bandung 40132 , Indonesia
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24
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Liu R, Zhao M, Zheng X, Wang Q, Huang X, Shen Y, Chen B. Reduced graphene oxide/TiO 2(B) immobilized on nylon membrane with enhanced photocatalytic performance. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 799:149370. [PMID: 34358743 DOI: 10.1016/j.scitotenv.2021.149370] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 07/24/2021] [Accepted: 07/24/2021] [Indexed: 06/13/2023]
Abstract
Taking advantage of the unique properties of reduced graphene oxide (rGO) and monoclinic crystalline titanium dioxide (TiO2(B)) nanomaterials, a novel rGO-TiO2(B) composite membrane (MrGO-TiO2(B)) was constructed by UV-light-assisted self-assembly of rGO and TiO2 on a nylon membrane. The structure of MrGO-TiO2(B) was characterized by scanning electron microscopy, transmission electron microscopy, UV-visible diffuse reflectance spectroscopy, X-ray photoelectron spectroscopy, and X-ray diffraction analysis. Through 2D/2D self-assembly, rGO and TiO2(B) were more tightly combined, and then MrGO-TiO2(B) exhibited outstanding photocatalytic activity and an excellent methylene blue (MB) removal rate. MB was completely removed in 60 min at a constant rate of 0.042 min-1 by the MrGO-TiO2(B)/H2O2/MB system upon solar simulating Xe lamp irradiation. The synergistic effect of rGO and TiO2(B) facilitated the photocatalytic degradation of MB. TiO2(B) was excited and generated electrons and holes upon irradiation. Some electrons migrated to the surface of TiO2(B) to react with H2O2 to produce hydroxyl radicals (OH), while the other electrons migrated to the surface of rGO to react with H2O2, producing OH. In addition, a number of superoxide radicals (O2-) was detected. The holes in the valence band of TiO2(B) directly oxidized MB. The catalytic activity of MrGO-TiO2(B) toward MB degradation remained stable after four rounds of reuse. Therefore, the surface modification of a nylon membrane with TiO2(B) and rGO can serve as a promising route to fabricate photocatalytic membranes for use in the water treatment industry.
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Affiliation(s)
- Renlan Liu
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China; National and Local Joint Engineering Research Center of Ecological Treatment Technology of Urban Water Pollution, Wenzhou University, Wenzhou 325035, China; Zhejiang Provincial Engineering Laboratory for Ecological Treatment Technology of Urban Water Pollution, Wenzhou University, Wenzhou 325035, China.
| | - Min Zhao
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China; National and Local Joint Engineering Research Center of Ecological Treatment Technology of Urban Water Pollution, Wenzhou University, Wenzhou 325035, China; Zhejiang Provincial Engineering Laboratory for Ecological Treatment Technology of Urban Water Pollution, Wenzhou University, Wenzhou 325035, China.
| | - Xiangyong Zheng
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China; National and Local Joint Engineering Research Center of Ecological Treatment Technology of Urban Water Pollution, Wenzhou University, Wenzhou 325035, China; Zhejiang Provincial Engineering Laboratory for Ecological Treatment Technology of Urban Water Pollution, Wenzhou University, Wenzhou 325035, China.
| | - Qi Wang
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China; National and Local Joint Engineering Research Center of Ecological Treatment Technology of Urban Water Pollution, Wenzhou University, Wenzhou 325035, China; Zhejiang Provincial Engineering Laboratory for Ecological Treatment Technology of Urban Water Pollution, Wenzhou University, Wenzhou 325035, China.
| | - Xianfeng Huang
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China; National and Local Joint Engineering Research Center of Ecological Treatment Technology of Urban Water Pollution, Wenzhou University, Wenzhou 325035, China; Zhejiang Provincial Engineering Laboratory for Ecological Treatment Technology of Urban Water Pollution, Wenzhou University, Wenzhou 325035, China.
| | - Yi Shen
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, China.
| | - Baoliang Chen
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China.
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25
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Laminar HNb3O8-based membranes supported on anodic aluminum oxide with enhanced anti-swelling property for organic solvent nanofiltration. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119799] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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26
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Nakagawa K, Araya S, Ushio K, Kunimatsu M, Yoshioka T, Shintani T, Kamio E, Tung KL, Matsuyama H. Controlling interlayer spacing and organic solvent permeation in laminar graphene oxide membranes modified with crosslinker. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119279] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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27
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Ozden S, Delafontaine L, Asset T, Guo S, Filsinger KA, Priestley RD, Atanassov P, Arnold CB. Graphene-based catalyst for CO2 reduction: The critical role of solvents in materials design. J Catal 2021. [DOI: 10.1016/j.jcat.2021.10.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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28
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Zhang M, Li P, Li M, Zheng W, Xie G, Xu X, Liu C, Jia J. Controlling assembly behaviors of laminar GO membranes in organic solvents by altering GO-solvent interactions. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119841] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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29
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Peng X, Zhang T, Zheng J, Lv X, Zhang H, Hu JQ, Tian W, Tan S, Ji J. Centrifugal Force Regularized Laponite@Graphene Hybrid Membranes with Ordered Interlayer Mass Transfer Channels and High Structural Stability for High-Rate Supercapacitors. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c03877] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Xianqiang Peng
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Tingting Zhang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Jie Zheng
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Xingbin Lv
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Hualian Zhang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Jia-Qi Hu
- College of Science, Jiangxi Agricultural University, Nanchang 330045, P. R. China
| | - Wen Tian
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Shuai Tan
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Junyi Ji
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, P. R. China
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30
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Kang J, Choi Y, Kim JP, Kim JH, Kim JY, Kwon O, Kim DI, Kim DW. Thermally-induced pore size tuning of multilayer nanoporous graphene for organic solvent nanofiltration. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119620] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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31
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Nam YT, Kang JH, Jang JD, Bae JH, Jung HT, Kim DW. Recent Developments in Nanoporous Graphene Membranes for Organic Solvent Nanofiltration: A Short Review. MEMBRANES 2021; 11:membranes11100793. [PMID: 34677558 PMCID: PMC8538602 DOI: 10.3390/membranes11100793] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 10/15/2021] [Accepted: 10/17/2021] [Indexed: 11/16/2022]
Abstract
Graphene-based membranes are promising candidates for efficient organic solvent nanofiltration (OSN) processes because of their unique structural characteristics, such as mechanical/chemical stability and precise molecular sieving. Recently, to improve organic solvent permeance and selectivity, nanopores have been fabricated on graphene planes via chemical and physical methods. The nanopores serve as an additional channel for facilitating ultrafast solvent permeation while filtering organic molecules by size exclusion. This review summarizes the recent developments in nanoporous graphene (NG)-based membranes for OSN applications. The membranes are categorized depending on the membrane structure: single-layer NG, multilayer NG, and graphene-based composite membranes hybridized with other porous materials. Techniques for nanopore generation on graphene, as well as the challenges faced and the perspectives required for the commercialization of NG membranes, are also discussed.
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Affiliation(s)
- Yoon-Tae Nam
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daehak-ro 291, Yuseong-gu, Daejeon 34141, Korea; (Y.-T.N.); (J.-D.J.)
| | - Jun-Hyeok Kang
- Department of Chemical and Biomolecular Engineering, Yonsei University, Yonsei-ro 50, Seodaemun-gu, Seoul 03722, Korea; (J.-H.K.); (J.-H.B.)
| | - Jae-Dong Jang
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daehak-ro 291, Yuseong-gu, Daejeon 34141, Korea; (Y.-T.N.); (J.-D.J.)
| | - Jun-Hyuk Bae
- Department of Chemical and Biomolecular Engineering, Yonsei University, Yonsei-ro 50, Seodaemun-gu, Seoul 03722, Korea; (J.-H.K.); (J.-H.B.)
| | - Hee-Tae Jung
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daehak-ro 291, Yuseong-gu, Daejeon 34141, Korea; (Y.-T.N.); (J.-D.J.)
- Correspondence: (H.-T.J.); (D.-W.K.)
| | - Dae-Woo Kim
- Department of Chemical and Biomolecular Engineering, Yonsei University, Yonsei-ro 50, Seodaemun-gu, Seoul 03722, Korea; (J.-H.K.); (J.-H.B.)
- Correspondence: (H.-T.J.); (D.-W.K.)
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Zhang S, Wu X, Huang Z, Tang X, Zheng H, Xie Z. The selective sieving role of nanosheets in the development of advanced membranes for water treatment: Comparison and performance enhancement of different nanosheets. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118996] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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33
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Li B, Wang CG, Surat'man NE, Loh XJ, Li Z. Microscopically tuning the graphene oxide framework for membrane separations: a review. NANOSCALE ADVANCES 2021; 3:5265-5276. [PMID: 36132639 PMCID: PMC9417198 DOI: 10.1039/d1na00483b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 08/08/2021] [Indexed: 05/25/2023]
Abstract
Membrane-based separations have been widely applied in gas, water and organic solvent purifications to reduce energy consumption and minimize environmental pollution. In recent years, graphene oxide (GO) membranes have attracted increasing attention due to their self-assembly ability and excellent stability. In this review, publications within the last 3 years on microscopically tuning the GO framework are summarized and reviewed. Various materials, including organic molecules, polymers, inorganic particles, ions and 2D materials, have been deployed to intercalate with GO nanosheets. Due to the varied interlayer spacing and packing structure, the developed GO composites exhibit enhanced stabilities and separation performances. In addition, designing horizontal GO membranes and functionalizing GO nanosheets have also been reported to improve the performance. This review sheds light on the techniques to microscopically tune the GO framework and the resulting macroscopic changes in membrane properties and performances.
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Affiliation(s)
- Bofan Li
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (ASTAR) 2 Fusionopolis Way, Innovis #08-03 Singapore 138634
| | - Chen-Gang Wang
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (ASTAR) 2 Fusionopolis Way, Innovis #08-03 Singapore 138634
| | - Nayli Erdeanna Surat'man
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (ASTAR) 2 Fusionopolis Way, Innovis #08-03 Singapore 138634
| | - Xian Jun Loh
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (ASTAR) 2 Fusionopolis Way, Innovis #08-03 Singapore 138634
| | - Zibiao Li
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (ASTAR) 2 Fusionopolis Way, Innovis #08-03 Singapore 138634
- Department of Materials Science and Engineering, National University of Singapore Singapore 117574 Singapore
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34
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Duong PHH, Shin YK, Kuehl VA, Afroz MM, Hoberg JO, Parkinson B, van Duin ACT, Li-Oakey KD. Molecular Interactions and Layer Stacking Dictate Covalent Organic Framework Effective Pore Size. ACS APPLIED MATERIALS & INTERFACES 2021; 13:42164-42175. [PMID: 34415136 DOI: 10.1021/acsami.1c10866] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Interactions among ions, molecules, and confining solid surfaces are universally challenging and intriguing topics. Lacking a molecular-level understanding of such interactions in complex organic solvents perpetuates the intractable challenge of simultaneously achieving high permeance and selectivity in selectively permeable barriers. Two-dimensional covalent organic frameworks (COFs) have demonstrated ultrahigh permeance, high selectivity, and stability in organic solvents. Using reactive force field molecular dynamics modeling and direct experimental comparisons of an imine-linked carboxylated COF (C-COF), we demonstrate that unprecedented organic solvent nanofiltration separation performance can be accomplished by the well-aligned, highly crystalline pores. Furthermore, we show that the effective, as opposed to designed, pore size and solvated solute radii can change dramatically with the solvent environment, providing insights into complex molecular interactions and enabling future application-specific material design and synthesis.
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Affiliation(s)
- Phuoc H H Duong
- Department of Chemical Engineering, University of Wyoming, Laramie, Wyoming 82070, United States
| | - Yun Kyung Shin
- Department of Mechanical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Valerie A Kuehl
- Department of Chemistry, University of Wyoming, Laramie, Wyoming 82070, United States
| | - Mohammad M Afroz
- Department of Chemical Engineering, University of Wyoming, Laramie, Wyoming 82070, United States
| | - John O Hoberg
- Department of Chemistry, University of Wyoming, Laramie, Wyoming 82070, United States
| | - Bruce Parkinson
- Department of Chemistry, University of Wyoming, Laramie, Wyoming 82070, United States
| | - Adri C T van Duin
- Department of Mechanical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Katie D Li-Oakey
- Department of Chemical Engineering, University of Wyoming, Laramie, Wyoming 82070, United States
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35
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Chen Z, Yang J, Ma C, Zhou K, Jiao S. Continuous Water Filling in a Graphene Nanochannel: A Molecular Dynamics Study. J Phys Chem B 2021; 125:9824-9833. [PMID: 34424717 DOI: 10.1021/acs.jpcb.1c05658] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Low dimensional materials especially carbon materials hold high promise in the fields of water purification, mineral separation, energy harvesting/conversion, and so on. The fluidic devices fabricated by direct synthesis, lithography, or self-assembly of low dimensional materials provide opportunities for exploring the novel properties and applications of nanoconfined transport. Here, continuous filling of water and acetone molecules into a graphene nanochannel is investigated. A stairlike nonlinear dependence of the number of filling water molecules on interlayer distance d is found when d < 1 nm due to the existence of out-plane layered and in-plane ordered monolayer structure, while near-linear dependence is found for acetone because of the freely rotating configurations along with varying d during the filling process. The entropy, potential energy, and free energy of the confined system during the continuous filling are analyzed to understand the structural evolution of water. The energy-costs are discussed depending on the structure evolution of water during the filling, which is crucial to understanding the swelling and capillary condensation widely existing in the angstrom/nanometer-scale separation membranes.
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Affiliation(s)
- Zhe Chen
- Shanghai Key Laboratory of Mechanics in Energy Engineering, Shanghai Institute of Applied Mathematics and Mechanics, School of Mechanics and Engineering Science, Shanghai University, Yanchang Road 149, Shanghai 200444, China
| | - Jianwen Yang
- Department of Physics, Shanghai Normal University, Guilin Road 100, Shanghai 200234, China
| | - Chengpeng Ma
- Shanghai Key Laboratory of Mechanics in Energy Engineering, Shanghai Institute of Applied Mathematics and Mechanics, School of Mechanics and Engineering Science, Shanghai University, Yanchang Road 149, Shanghai 200444, China
| | - Ke Zhou
- State Key Laboratory for Strength and Vibration of Mechanical Structures, Laboratory for Multiscale Mechanics and Medical Science, School of Aerospace Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Shuping Jiao
- Shanghai Key Laboratory of Mechanics in Energy Engineering, Shanghai Institute of Applied Mathematics and Mechanics, School of Mechanics and Engineering Science, Shanghai University, Yanchang Road 149, Shanghai 200444, China
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36
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Wang Z, Zhu J, Xu S, Zhang Y, Van der Bruggen B. Graphene-like MOF nanosheets stabilize graphene oxide membranes enabling selective molecular sieving. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119397] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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37
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Neolaka YA, Lawa Y, Naat J, Riwu AA, Lindu YE, Darmokoesoemo H, Widyaningrum BA, Iqbal M, Kusuma HS. Evaluation of magnetic material IIP@GO-Fe3O4 based on Kesambi wood (Schleichera oleosa) as a potential adsorbent for the removal of Cr(VI) from aqueous solutions. REACT FUNCT POLYM 2021. [DOI: 10.1016/j.reactfunctpolym.2021.105000] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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38
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Biochar/Kevlar Nanofiber Mixed Matrix Nanofiltration Membranes with Enhanced Dye/Salt Separation Performance. MEMBRANES 2021; 11:membranes11060443. [PMID: 34204750 PMCID: PMC8231588 DOI: 10.3390/membranes11060443] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 06/07/2021] [Accepted: 06/10/2021] [Indexed: 11/25/2022]
Abstract
Mixed matrix membranes have received ever-growing attention due to their high separation performance, taking the advantages of both porous fillers and polymer backbones. However, limitations still exist due to the instability of polymers in harsh environments. Here, Kevlar aramid nanofibers, a nanoscale version of poly(paraphenylene terephthalamide), were applied to fabricate a nanofiltration membrane by a thermo-assisted phase inversion method due to their high mechanical strength, physical stability and resistance to solvents. Biochar was incorporated in the Kevlar nanofibers to evaluate its performance in dye/salt separation performance. The fillers’ distribution in the polymeric matrix, structural characteristics, and the interaction of fillers with the polymer in the membrane were characterized via SEM, FTIR, AFM and contact angle analysis. Under the optimal fabrication conditions, the obtained membrane exhibited a pure water flux of 3.83 L m−2 h−1 bar−1 with a dye rejection of 90.55%, 93.54% and 95.41% for Congo red, methyl blue and Reactive blue 19, respectively. Meanwhile, the mixed matrix membrane maintained a salt rejection of 59.92% and 85.37% for NaCl and Na2SO4, respectively. The obtained membrane with high separation performance suggested that Kevlar nanofiber and biochar are good candidates for membrane synthesis.
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39
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Yan Y, Manickam S, Lester E, Wu T, Pang CH. Synthesis of graphene oxide and graphene quantum dots from miscanthus via ultrasound-assisted mechano-chemical cracking method. ULTRASONICS SONOCHEMISTRY 2021; 73:105519. [PMID: 33799111 PMCID: PMC8044699 DOI: 10.1016/j.ultsonch.2021.105519] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 02/28/2021] [Accepted: 03/05/2021] [Indexed: 05/20/2023]
Abstract
Whilst graphene materials have become increasingly popular in recent years, the followed synthesis strategies face sustainability, environmental and quality challenges. This study proposes an effective, sustainable and scalable ultrasound-assisted mechano-chemical cracking method to produce graphene oxide (GO). A typical energy crop, miscanthus, was used as a carbon precursor and pyrolysed at 1200 °C before subjecting to edge-carboxylation via ball-milling in a CO2-induced environment. The resultant functionalised biochar was ultrasonically exfoliated in N-Methyl-2-pyrrolidone (NMP) and water to form GOs. The intermediate and end-products were characterised via X-ray diffraction (XRD), Raman, high-resolution transmission electron microscopy (HR-TEM) and atomic force microscopy (AFM) analyses. Results show that the proposed synthesis route can produce good quality and uniform GOs (8-10% monolayer), with up to 96% of GOs having three layers or lesser when NMP is used. Ultrasonication proved to be effective in propagating the self-repulsion of negatively-charged functional groups. Moreover, small amounts of graphene quantum dots were observed, illustrating the potential of producing various graphene materials via a single-step method. Whilst this study has only investigated utilising miscanthus, the current findings are promising and could expand the potential of producing good quality graphene materials from renewable sources via green synthesis routes.
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Affiliation(s)
- Yuxin Yan
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo 315100, PR China; New Materials Institute, University of Nottingham Ningbo China, Ningbo 315042, PR China
| | - Sivakumar Manickam
- Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Bandar Seri Begawan BE1410, Brunei Darussalam
| | - Edward Lester
- Department of Chemical and Environmental Engineering, University of Nottingham, Nottingham NG7 2RD, UK
| | - Tao Wu
- New Materials Institute, University of Nottingham Ningbo China, Ningbo 315042, PR China; Key Laboratory for Carbonaceous Wastes Processing and Process Intensification Research of Zhejiang Province, University of Nottingham Ningbo China, Ningbo 315100, PR China
| | - Cheng Heng Pang
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo 315100, PR China; Municipal Key Laboratory of Clean Energy Conversion Technologies, University of Nottingham Ningbo China, Ningbo 315100, PR China.
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40
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Nordenström A, Boulanger N, Iakunkov A, Baburin I, Klechikov A, Vorobiev A, Talyzin AV. Intercalation of Dyes in Graphene Oxide Thin Films and Membranes. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2021; 125:6877-6885. [PMID: 33868545 PMCID: PMC8043058 DOI: 10.1021/acs.jpcc.1c00327] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 03/11/2021] [Indexed: 06/12/2023]
Abstract
Intercalation of dyes into thin multilayered graphene oxide (GO) films was studied by neutron reflectivity and X-ray diffraction. Methylene blue (MB) penetrates the interlayer space of GO in ethanol solution and remains intercalated after the solvent evaporation, as revealed by the expansion of the interlayer lattice and change in chemical composition. The sorption of MB by thin GO films is found to be significantly stronger compared to the sorption of Crystal violet (CV) and Rose bengal (RB). This effect is attributed to the difference in the geometrical shape of planar MB and essentially nonflat CV and RB molecules. Graphite oxides and restacked GO films are found to exhibit different methylene blue (MB) sorptions. MB sorption by precursor graphite oxide and thin spin-coated films of GO is significantly stronger compared to freestanding micrometer-thick membranes prepared by vacuum filtration. Nevertheless, the sorption capacity of GO membranes is sufficient to remove a significant part of the MB from diluted solutions tested for permeation in several earlier studies. High sorption capacity results in strong modification of the GO structure, which is likely to affect permeation properties of GO membranes. Therefore, MB is not suitable for testing size exclusion effects in the permeation of GO membranes. It is not only hydration or solvation diameter but also the exact geometrical shape of molecules that needs to be taken into account considering size effects for penetration of molecules between GO layers in membrane applications.
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Affiliation(s)
| | | | - Artem Iakunkov
- Department
of Physics, Umeå University, S-90187 Umeå, Sweden
| | - Igor Baburin
- Theoretische
Chemie, Technische Universitat Dresden, Bergstraße 66b, 01062 Dresden, Germany
| | - Alexey Klechikov
- Department of
Physics and Astronomy, Uppsala University, Uppsala 751 20, Sweden
| | - Alexei Vorobiev
- Department of
Physics and Astronomy, Uppsala University, Uppsala 751 20, Sweden
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41
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Shao DD, Zhang Q, Wang L, Wang ZY, Jing YX, Cao XL, Zhang F, Sun SP. Enhancing interfacial adhesion of MXene nanofiltration membranes via pillaring carbon nanotubes for pressure and solvent stable molecular sieving. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.119033] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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42
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Jiao S, Liu M. Snap-through in Graphene Nanochannels: With Application to Fluidic Control. ACS APPLIED MATERIALS & INTERFACES 2021; 13:1158-1168. [PMID: 33354971 DOI: 10.1021/acsami.0c16468] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Recent studies on the structure and transport behaviors of water confined within lamellar graphene have attracted intense interest in filtration technology, but the mechanism of water transport in complex membrane nanostructures remains an open question. For example, similar systems but at much larger scales have indicated that the instabilities of an elastic structure, such as snap-through, play an essential role in controlling the fluid flow. Graphene sheets, which have an atomic thickness, often appear highly wrinkled in nanofluidic devices and so are vulnerable to elastic instabilities. However, it remains unclear how does the flexible wrinkled structure affect the transport of water and filtration efficiency or whether such an effect can be exploited in devices. In this work, we explore the flow-induced snap-through in graphene nanochannels by combining molecular simulations with the theoretical analysis. We further demonstrate its applications to passive control of fluid flow and to ion/molecule selection. By introducing a flexible arch embedded within a graphene nanochannel, we observe the "snap" of the arched graphene wall from one stable state to another by varying the fluid flux (i.e., velocity); the critical velocity of this snap transition is found to depend nonmonotonically on the geometric size of the channel and the arch. We also demonstrate reversible snap-through by fixing the end parts of the flexible arch. These results suggest the potential of flow-induced snap-through in graphene-based nanochannels for ion/molecule selection applications in, for example, the design of a foul-resistant, easy-to-clean, reusable filter membrane.
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Affiliation(s)
- Shuping Jiao
- Shanghai Key Laboratory of Mechanics in Energy Engineering, Shanghai Institute of Applied Mathematics and Mechanics, School of Mechanics and Engineering Science, Shanghai University, Shanghai 200444, China
| | - Mingchao Liu
- Mathematical Institute, University of Oxford, Woodstock Road, Oxford OX2 6GG, U.K
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Sui X, Yuan Z, Yu Y, Goh K, Chen Y. 2D Material Based Advanced Membranes for Separations in Organic Solvents. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2003400. [PMID: 33217172 DOI: 10.1002/smll.202003400] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 08/25/2020] [Indexed: 06/11/2023]
Abstract
2D materials have shown high potentials for fabricating next-generation membranes. To date, extensive studies have focused on the applications of 2D material membranes in gas and aqueous media. Recently, compelling opportunities emerge for 2D material membranes in separation applications in organic solvents because of their unique properties, such as ultrathin mono- to few-layers, outstanding chemical resistance toward organic solvents. Hence, this review aims to provide a timely overview of the current state-of-the-art of 2D material membranes focusing on their applications in organic solvent separations. 2D material membranes fabricated using graphene materials and a few representative nongraphene-based 2D materials, including covalent organic frameworks and MXenes, are summarized. The key membrane design strategies and their effects on separation performances in organic solvents are also examined. Last, several perspectives are provided in terms of the critical challenges for 2D material membranes, including standardization of membrane performance evaluation, improving understandings of separation mechanisms, managing the trade-off of permeability and selectivity, issues related to application versatility, long-term stability, and fabrication scalability. This review will provide a useful guide for researchers in creating novel 2D material membranes for advancing new separation techniques in organic solvents.
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Affiliation(s)
- Xiao Sui
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Ziwen Yuan
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Yanxi Yu
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Kunli Goh
- Singapore Membrane Technology Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, Singapore, 637141, Singapore
| | - Yuan Chen
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW, 2006, Australia
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44
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Iakunkov A, Talyzin AV. Swelling properties of graphite oxides and graphene oxide multilayered materials. NANOSCALE 2020; 12:21060-21093. [PMID: 33084722 DOI: 10.1039/d0nr04931j] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Graphite oxide (GtO) and graphene oxide (GO) multilayered laminates are hydrophilic materials easily intercalated by water and other polar solvents. By definition, an increase in the volume of a material connected to the uptake of a liquid or vapour is named swelling. Swelling is a property which defines graphite oxides and graphene oxides. Less oxidized materials not capable of swelling should be named oxidized graphene. The infinite swelling of graphite oxide yields graphene oxide in aqueous dispersions. Graphene oxide sheets dispersed in a polar solvent can be re-assembled into multilayered structures and named depending on applications as films, papers or membranes. The multilayered GO materials exhibit swelling properties which are mostly similar to those of graphite oxides but not identical and in some cases surprisingly different. Swelling is a key property of GO materials in all applications which involve the sorption of water/solvents from vapours, immersion of GO into liquid water/solvents and solution based chemical reactions. These applications include sensors, sorption/removal of pollutants from waste waters, separation of liquid and gas mixtures, nanofiltration, water desalination, water-permeable protective coatings, etc. Swelling defines the distance between graphene oxide sheets in solution-immersed GO materials and the possibility for penetration of ions and molecules inside of interlayers. A high sorption capacity of GO towards many molecules and cations is defined by swelling which makes the very high surface area of GO accessible. GtO and GO swelling is a surprisingly complex phenomenon which is manifested in a variety of different ways. Swelling is strongly different for materials produced using the most common Brodie and Hummers oxidation procedures; it depends on the degree of oxidation, ad temperature and pressure conditions. The value of the GO interlayer distance is especially important in membrane applications. Diffusion of solvent molecules and ions is defined by the size of "permeation channels" provided by the swelled GO structure. According to extensive studies performed over the last decade the exact value of the inter-layer distance in swelled GO depends on the nature of solvent, temperature and pressure conditions, and the pH and concentration of solutions and exhibits pronounced aging effects. This review provides insight into the fundamental swelling properties of multilayered GO and demonstrates links to advanced applications of these materials.
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Affiliation(s)
- Artem Iakunkov
- Department of Physics, Umeå University, SE-901 87 Umeå, Sweden.
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