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152
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Jiang X, Zhao C, Noh Y, Xu Y, Chen Y, Chen F, Ma L, Ren W, Aluru NR, Feng J. Nonlinear electrohydrodynamic ion transport in graphene nanopores. SCIENCE ADVANCES 2022; 8:eabj2510. [PMID: 35030026 PMCID: PMC8759738 DOI: 10.1126/sciadv.abj2510] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 11/22/2021] [Indexed: 05/25/2023]
Abstract
Mechanosensitivity is one of the essential functionalities of biological ion channels. Synthesizing an artificial nanofluidic system to mimic such sensations will not only improve our understanding of these fluidic systems but also inspire applications. In contrast to the electrohydrodynamic ion transport in long nanoslits and nanotubes, coupling hydrodynamical and ion transport at the single-atom thickness remains challenging. Here, we report the pressure-modulated ion conduction in graphene nanopores featuring nonlinear electrohydrodynamic coupling. Increase of ionic conductance, ranging from a few percent to 204.5% induced by the pressure—an effect that was not predicted by the classical linear coupling of molecular streaming to voltage-driven ion transport—was observed experimentally. Computational and theoretical studies reveal that the pressure sensitivity of graphene nanopores arises from the transport of capacitively accumulated ions near the graphene surface. Our findings may help understand the electrohydrodynamic ion transport in nanopores and offer a new ion transport controlling methodology.
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Affiliation(s)
- Xiaowei Jiang
- Laboratory of Experimental Physical Biology, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Chunxiao Zhao
- Laboratory of Experimental Physical Biology, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Yechan Noh
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Yang Xu
- Laboratory of Experimental Physical Biology, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Yuang Chen
- Laboratory of Experimental Physical Biology, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Fanfan Chen
- Laboratory of Experimental Physical Biology, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Laipeng Ma
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
| | - Wencai Ren
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
| | - Narayana R. Aluru
- Walker Department of Mechanical Engineering, Oden Institute for Computational Engineering and Sciences, The University of Texas at Austin, Austin, Texas, TX 78712, USA
| | - Jiandong Feng
- Laboratory of Experimental Physical Biology, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
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153
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Gao H, Xu Q, Wang J, Ning C, Liu Y, Xie Y, Lu R. Beyond the Pore Size Limitation of a Nanoporous Graphene Monolayer Membrane for Water Desalination Assisted by an External Electric Field. J Phys Chem Lett 2022; 13:258-266. [PMID: 34968068 DOI: 10.1021/acs.jpclett.1c03834] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
One efficient strategy for addressing the global water shortage is advanced membrane separation, which depends on the precise pore size being close to the hydrated ion size and other surface properties like charge and polarity. However, it is very difficult to fabricate uniform pores with diameters of <1 nm on monolayer membranes. By applying an electric field (bias voltage) perpendicular to the direction of the pressure difference, herein we demonstrate for the first time that a monolayer nanoporous graphene membrane with pores much larger than hydrated ions exhibits high salt rejection and allows a high rate of water transport. This theoretical proposal goes beyond the pore size limitation and shows promise for the design of high-performance reverse osmosis membranes.
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Affiliation(s)
- Haiqi Gao
- State Key Laboratory of Organic Electronics and Information Displays and Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications, Nanjing 210023, People's Republic of China
| | - Qinghao Xu
- State Key Laboratory of Organic Electronics and Information Displays and Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications, Nanjing 210023, People's Republic of China
| | - Jing Wang
- Institute of Ultrafast Optical Physics, MIIT Key Laboratory of Semiconductor Microstructure and Quantum Sensing, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China
| | - Cai Ning
- School of Physics, Southeast University, Nanjing 211189, People's Republic of China
| | - Yuzhen Liu
- Institute of Ultrafast Optical Physics, MIIT Key Laboratory of Semiconductor Microstructure and Quantum Sensing, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China
| | - Yannan Xie
- State Key Laboratory of Organic Electronics and Information Displays and Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications, Nanjing 210023, People's Republic of China
| | - Ruifeng Lu
- Institute of Ultrafast Optical Physics, MIIT Key Laboratory of Semiconductor Microstructure and Quantum Sensing, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China
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154
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Zhang T, Zhang LZ. Development of a MXene-based membrane with excellent anti-fouling for air humidification-dehumidification type desalination. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2021.119907] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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155
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Wu J, Li N, Liu S, Shi W, Min C, Zhu B, Shao R, Pei X, Cai Z, Xu Z. Graphene oxide membranes with a confined mass transfer effect for Li +/Mg 2+ separation: a molecular dynamics study. Phys Chem Chem Phys 2022; 24:26011-26022. [DOI: 10.1039/d2cp03542a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2023]
Abstract
Molecular dynamics simulations were used to investigate the influence of the confined mass transfer effect on the separation of Mg2+ and Li+ from graphene oxide membranes, both in terms of layer spacing and degree of oxidation.
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156
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Jahandideh H, Macairan JR, Bahmani A, Lapointe M, Tufenkji N. Fabrication of graphene-based porous materials: traditional and emerging approaches. Chem Sci 2022; 13:8924-8941. [PMID: 36091205 PMCID: PMC9365090 DOI: 10.1039/d2sc01786e] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 07/04/2022] [Indexed: 11/21/2022] Open
Abstract
The anisotropic nature of ‘graphenic’ nanosheets enables them to form stable three-dimensional porous materials. The use of these porous structures has been explored in several applications including electronics and batteries, environmental remediation, energy storage, sensors, catalysis, tissue engineering, and many more. As method of fabrication greatly influences the final pore architecture, and chemical and mechanical characteristics and performance of these porous materials, it is essential to identify and address the correlation between property and function. In this review, we report detailed analyses of the different methods of fabricating porous graphene-based structures – with a focus on graphene oxide as the base material – and relate these with the resultant morphologies, mechanical responses, and common applications of use. We discuss the feasibility of the synthesis approaches and relate the GO concentrations used in each methodology against their corresponding pore sizes to identify the areas not explored to date. Due to their anisotropic nature, graphene nanosheets can be used to form 3-dimensional porous materials using template-free and template-directed methodologies. These fabrication strategies are found to influence the properties of the final structure.![]()
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Affiliation(s)
- Heidi Jahandideh
- Department of Chemical Engineering, McGill University, Montreal, QC H3A 0C5, Canada
- McGill Institute for Advanced Materials (MIAM), McGill University, Montreal, Quebec, Canada
| | - Jun-Ray Macairan
- Department of Chemical Engineering, McGill University, Montreal, QC H3A 0C5, Canada
| | - Aram Bahmani
- Department of Mechanical Engineering, McGill University, Montreal, QC H3A 0C3, Canada
| | - Mathieu Lapointe
- Department of Chemical Engineering, McGill University, Montreal, QC H3A 0C5, Canada
| | - Nathalie Tufenkji
- Department of Chemical Engineering, McGill University, Montreal, QC H3A 0C5, Canada
- McGill Institute for Advanced Materials (MIAM), McGill University, Montreal, Quebec, Canada
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157
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Electric field tunable Li+ selectivity by eliminating coulomb blockage effect of phosphonic acid-modified graphene nanopores: A molecular simulation study. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.117802] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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158
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Duan M, Gu Z, Manuel Perez-Aguilar J. Controllable phosphorene filter for water desalination by tuning the in-plane strain. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.117081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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159
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Moulod M, Moghaddam S. High Directional Water Transport Graphene Oxide Biphilic Stack. MOLECULAR SIMULATION 2022; 48:621-630. [PMID: 36060446 PMCID: PMC9435866 DOI: 10.1080/08927022.2022.2042529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Understanding the nature of water transport in nanoscale is of high importance. Graphene properties such as mass flow rate, stability, filtration efficiency, and selectivity have been studied in various fields. It is a widely held view that the hydrophilicity of graphene oxide enhances the water transport properties. In this study, it is shown that despite this belief, a combination of graphene and graphene oxide can yield superior transport properties including high mass flow rate and directionality. Firstly, different membrane characteristics such as the smallest pore diameter for water molecules sieving and mass flow rate have been evaluated. Furthermore, a combination of graphene and graphene oxide, a biphilic stack of hydrophobic and hydrophilic layers, are used to evaluate the mass flow rates and results are compared with that of normal graphene oxide laminates. The proposed structure acts like a water diode i.e. conduct water molecules in a desired direction and increases the mass flow rate several times. The effect of interatomic potential, oxidation level and charge, and the spacing between layers on both mass flow rate and directionality are examined. It is found that an optimized structure conducts water in a desired direction and increases the mass flow rate up to 10 times for the small interlayer distance of 7 Å compared to the normal graphene oxide laminates. The given structures can be used in a wide range of filtration applications where selective water sieving with high mass flow rate is desired.
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Affiliation(s)
- Mohammad Moulod
- Mechanical and Aerospace Engineering Department, University of Florida, Gainesville, FL, USA
| | - Saeed Moghaddam
- Mechanical and Aerospace Engineering Department, University of Florida, Gainesville, FL, USA
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160
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Li Y, Jiao J, Wu Q, Song Q, Xie W, Liu B. Environmental applications of graphene oxide composite membranes. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.01.034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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161
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Song Z, Niu Y, Yang J, Chen L, Chen J. Comparison of water desalination performance of porous graphene and MoS 2 nanosheets. RSC Adv 2022; 12:27641-27647. [PMID: 36276004 PMCID: PMC9515973 DOI: 10.1039/d2ra04544c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 09/21/2022] [Indexed: 12/01/2022] Open
Abstract
Following graphene and its derivatives, molybdenum disulfide (MoS2) has become a research hotspot in two-dimensional materials. Both graphene and MoS2 exhibit great potential in water treatment. A variety of nanoporous graphene or MoS2 membranes have been designed for water desalination. In this work, we compared the water flux and ion rejection of MoS2 and graphene nanopores, using molecular dynamics simulations. The simulation results demonstrate that monolayer nanopores have higher water fluxes than bilayer nanopores with lower ion rejection rates. MoS2 nanopores perform better than graphene in terms of water permeability. Exploration of the underlying mechanism indicates that the water molecules in the MoS2 pores have faster velocity and higher mass density than those in the graphene pores, due to the outer hydrophobic and inner hydrophilic edges of MoS2 pores. In addition, increasing the polarity of the pore edge causes a decrease in water flux while enhancement of ion rejection. Our findings may provide theoretical guidance for the design of MoS2 membranes in water purification. (1) The water flux of MoS2 is higher than that of graphene with similar pore area regardless of whether monolayer or bilayer. (2) A monolayer has higher water flux than a bilayer. In contrast, a monolayer has lower ion rejection than a bilayer.![]()
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Affiliation(s)
- Zailing Song
- Department of Optical Engineering, College of Optical, Mechanical and Electrical Engineering, Zhejiang A&F University, Lin'an 311300, China
| | - Yunlong Niu
- The State Key Laboratory of Industry Control Technology, College of Control Science and Engineering, Hangzhou 310027, China
- Radiation Monitoring Technical Center of Ministry of Ecology and Environment, State Environmental Protection Key Laboratory of Radiation Monitoring, Hangzhou 310012, China
| | - Juan Yang
- Department of Optical Engineering, College of Optical, Mechanical and Electrical Engineering, Zhejiang A&F University, Lin'an 311300, China
| | - Liang Chen
- Department of Optical Engineering, College of Optical, Mechanical and Electrical Engineering, Zhejiang A&F University, Lin'an 311300, China
| | - Junlang Chen
- Department of Optical Engineering, College of Optical, Mechanical and Electrical Engineering, Zhejiang A&F University, Lin'an 311300, China
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162
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Karimzadeh N, Azamat J, Erfan-Niya H. Efficient water desalination through mono and bilayer carbon nitride nanosheet membranes: Insights from molecular dynamics simulation. J Mol Graph Model 2022; 110:108059. [PMID: 34736058 DOI: 10.1016/j.jmgm.2021.108059] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 10/05/2021] [Accepted: 10/24/2021] [Indexed: 12/14/2022]
Abstract
Water desalination through membranes is an excellent way to access drinking water. Among two-dimensional nanosheet membranes for water desalination, carbon nitride (C2N) nanosheet has been considered as a promising membrane by researchers because of its inherent structure and mechanical strength. In this work, molecular simulations were used to study the efficiency of the pristine C2N nanosheet in the water desalination process using applied hydrostatic pressure to the system. In our simulation box, the C2N nanosheet was placed in the center of the simulation cell in an aqueous ionic solution. Due to the applied pressure to the system, water molecules overcame the forces that prevented them from passing through the C2N, and therefore, they passed through the C2N membrane. The water flux and water permeability of considered systems were obtained. Also, for more investigation, water density, radial distribution function of ions, the water density map, and hydrogen bonds of the system were conducted. The results demonstrated that the C2N membrane is an effective membrane for desalination even at low pressures with the acceptable water flux and salt rejection.
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Affiliation(s)
- Negin Karimzadeh
- Faculty of Chemical and Petroleum Engineering, University of Tabriz, 51666-16471, Tabriz, Iran
| | - Jafar Azamat
- Department of Basic Sciences, Farhangian University, Tehran, Iran.
| | - Hamid Erfan-Niya
- Faculty of Chemical and Petroleum Engineering, University of Tabriz, 51666-16471, Tabriz, Iran.
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163
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A review on membrane distillation in process engineering: design and exergy equations, materials and wetting problems. Front Chem Sci Eng 2021. [DOI: 10.1007/s11705-021-2105-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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164
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Ju H, Duan J, Lu H, Xu W. Cross-Linking With Diamine Monomers to Prepare Graphene Oxide Composite Membranes With Varying D-Spacing for Enhanced Desalination Properties. Front Chem 2021; 9:779304. [PMID: 34900938 PMCID: PMC8660854 DOI: 10.3389/fchem.2021.779304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Accepted: 11/08/2021] [Indexed: 11/20/2022] Open
Abstract
As a new type of membrane material, graphene oxide (GO) can easily form sub-nanometer interlayer channels, which can effectively screen salt ions. The composite membrane and structure with a high water flux and good ion rejection rate were compared by the cross-linking of GO with three different diamine monomers: ethylenediamine (EDA), urea (UR), and p-phenylenediamine (PPD). X-ray photoelectron spectroscopy (XPS) results showed that unmodified GO mainly comprises π-π interactions and hydrogen bonds, but after crosslinking with diamine, both GO and mixed cellulose (MCE) membranes are chemically bonded to the diamine. The GO-UR/MCE membrane achieved a water flux similar to the original GO membrane, while the water flux of GO-PPD/MCE and GO-EDA/MCE dropped. X-ray diffraction results demonstrated that the covalent bond between GO and diamine can effectively inhibit the extension of d-spacing during the transition between dry and wet states. The separation performance of the GO-UR/MCE membrane was the best. GO-PPD/MCE had the largest contact angle and the worst hydrophilicity, but its water flux was still greater than GO-EDA/MCE. This result indicated that the introduction of different functional groups during the diamine monomer cross-linking of GO caused some changes in the performance structure of the membrane.
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Affiliation(s)
- Hong Ju
- School of Materials Science and Engineering, China University of Petroleum, Qingdao, China
| | - Jinzhuo Duan
- School of Materials Science and Engineering, China University of Petroleum, Qingdao, China
| | - Haitong Lu
- School of Materials Science and Engineering, China University of Petroleum, Qingdao, China
| | - Weihui Xu
- School of Materials Science and Engineering, China University of Petroleum, Qingdao, China
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165
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Zhang Y, Zhang Z, Zhu Q, Fang W. A Two‐Dimensional Laminated V
2
O
5
Membrane for Metal Ions Separation. CHEM-ING-TECH 2021. [DOI: 10.1002/cite.202100132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yating Zhang
- Ningbo University School of Materials Science and Chemical Engineering 818 Fenghua Road 315211 Ningbo China
| | - Zhenxin Zhang
- Ningbo University School of Materials Science and Chemical Engineering 818 Fenghua Road 315211 Ningbo China
| | - Qianqian Zhu
- Ningbo University School of Materials Science and Chemical Engineering 818 Fenghua Road 315211 Ningbo China
| | - Wei Fang
- Ningbo University School of Materials Science and Chemical Engineering 818 Fenghua Road 315211 Ningbo China
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166
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Zhang Y, Zhang Y, Pan X, Qin Y, Deng J, Wang S, Gao Q, Zhu Y, Yang Z, Lu X. Molecular insights on Ca2+/Na+ separation via graphene-based nanopores: The role of electrostatic interactions to ionic dehydration. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2021.10.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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167
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Liu X, Zhang L, Cui X, Zhang Q, Hu W, Du J, Zeng H, Xu Q. 2D Material Nanofiltration Membranes: From Fundamental Understandings to Rational Design. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2102493. [PMID: 34668340 PMCID: PMC8655186 DOI: 10.1002/advs.202102493] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 08/07/2021] [Indexed: 05/05/2023]
Abstract
Since the discovery of 2D materials, 2D material nanofiltration (NF) membranes have attracted great attention and are being developed with a tremendously fast pace, due to their energy efficiency and cost effectiveness for water purification. The most attractive aspect for 2D material NF membranes is that, anomalous water and ion permeation phenomena have been constantly observed because of the presence of the severely confined nanocapillaries (<2 nm) in the membrane, leading to its great potential in achieving superior overall performance, e.g., high water flux, high rejection rates of ions, and high resistance to swelling. Hence, fundamental understandings of such water and ion transport behaviors are of great significance for the continuous development of 2D material NF membranes. In this work, the microscopic understandings developed up to date on 2D material NF membranes regarding the abnormal transport phenomena are reviewed, including ultrafast water and ion permeation rates with the magnitude several orders higher than that predicted by conventional diffusion behavior, ion dehydration, ionic Coulomb blockade, ion-ion correlations, etc. The state-of-the-art structural designs for 2D material NF membranes are also reviewed. Discussion and future perspectives are provided highlighting the rational design of 2D material membrane structures in the future.
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Affiliation(s)
- Xiaopeng Liu
- College of Materials Science and EngineeringZhengzhou UniversityZhengzhou450001P. R. China
| | - Ling Zhang
- School of Chemical EngineeringZhengzhou UniversityZhengzhou450001P. R. China
| | - Xinwei Cui
- College of Materials Science and EngineeringZhengzhou UniversityZhengzhou450001P. R. China
- Institutes of Advanced TechnologyZhengzhou UniversityZhengzhou450052P. R. China
| | - Qian Zhang
- Institutes of Advanced TechnologyZhengzhou UniversityZhengzhou450052P. R. China
| | - Wenjihao Hu
- School of Metallurgy & EnvironmentCentral South UniversityChangshaHunan410083China
| | - Jiang Du
- College of Materials Science and EngineeringZhengzhou UniversityZhengzhou450001P. R. China
| | - Hongbo Zeng
- Department of Chemical and Materials EngineeringUniversity of AlbertaEdmontonAlbertaT6G 1H9Canada
| | - Qun Xu
- College of Materials Science and EngineeringZhengzhou UniversityZhengzhou450001P. R. China
- Institutes of Advanced TechnologyZhengzhou UniversityZhengzhou450052P. R. China
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168
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Design of zinc oxide nanoparticles and graphene hydrogel co-incorporated activated carbon for efficient capacitive deionization. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119428] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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169
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Naberezhnyi D, Park S, Li W, Westphal M, Feng X, Dong R, Dementyev P. Mass Transfer in Boronate Ester 2D COF Single Crystals. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2104392. [PMID: 34713582 DOI: 10.1002/smll.202104392] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 09/05/2021] [Indexed: 06/13/2023]
Abstract
Unlike graphene and similar structures, 2D covalent organic frameworks (2D COFs) exhibit intrinsic porosity with a high areal density of well-defined and uniform openings. Given the pore size adjustability, 2D COFs are likely to outperform artificially perforated inorganic layers with respect to their prospects in membrane separation. Yet, exploring the mass transport in 2D COFs is hidden by the lack of laterally extended free-standing membranes. This work reports on direct molecular permeation measurements with single crystals of an interfacially synthesized boronate ester 2D COF. In accordance with the material topography, the atmospheric and noble gases readily pass the suspended nanosheets while their areal porosity is quantified to be almost 40% exceeding that in any 2D membranes known. However, bulkier aromatic hydrocarbons are found to deviate substantially from Graham's law of diffusion. Counterintuitively, the permeation rate is demonstrated to rise from benzene to toluene and further to xylene despite the increase in the molecular mass and dimensions. The results are interpreted in terms of adsorption-mediated flow that appears to be an important transport mechanism for microporous planar nanomaterials.
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Affiliation(s)
- Daniil Naberezhnyi
- Physics of Supramolecular Systems and Surfaces, Faculty of Physics, Bielefeld University, 33615, Bielefeld, Germany
| | - SangWook Park
- Center for Advancing Electronics Dresden, Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062, Dresden, Germany
| | - Wei Li
- Center for Advancing Electronics Dresden, Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062, Dresden, Germany
| | - Michael Westphal
- Physics of Supramolecular Systems and Surfaces, Faculty of Physics, Bielefeld University, 33615, Bielefeld, Germany
| | - Xinliang Feng
- Center for Advancing Electronics Dresden, Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062, Dresden, Germany
| | - Renhao Dong
- Center for Advancing Electronics Dresden, Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062, Dresden, Germany
| | - Petr Dementyev
- Physics of Supramolecular Systems and Surfaces, Faculty of Physics, Bielefeld University, 33615, Bielefeld, Germany
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170
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Ma P, Zheng J, Zhao D, Zhang W, Lu G, Lin L, Zhao Z, Huang Z, Cao L. The Selective Transport of Ions in Charged Nanopore with Combined Multi-Physics Fields. MATERIALS 2021; 14:ma14227012. [PMID: 34832413 PMCID: PMC8622219 DOI: 10.3390/ma14227012] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 11/01/2021] [Accepted: 11/10/2021] [Indexed: 01/03/2023]
Abstract
The selective transport of ions in nanopores attracts broad interest due to their potential applications in chemical separation, ion filtration, seawater desalination, and energy conversion. The ion selectivity based on the ion dehydration and steric hindrance is still limited by the very similar diameter between different hydrated ions. The selectivity can only separate specific ion species, lacking a general separation effect. Herein, we report the highly ionic selective transport in charged nanopore through the combination of hydraulic pressure and electric field. Based on the coupled Poisson–Nernst–Planck (PNP) and Navier–Stokes (NS) equations, the calculation results suggest that the coupling of hydraulic pressure and electric field can significantly enhance the ion selectivity compared to the results under the single driven force of hydraulic pressure or electric field. Different from the material-property-based ion selective transport, this method endows the general separation effect between different kinds of ions. Through the appropriate combination of hydraulic pressure and electric field, an extremely high selectivity ratio can be achieved. Further in-depth analysis reveals the influence of nanopore diameter, surface charge density and ionic strength on the selectivity ratio. These findings provide a potential route for high-performance ionic selective transport and separation in nanofluidic systems.
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Affiliation(s)
- Pengfei Ma
- College of Energy, Xiamen University, Xiamen 361005, China; (P.M.); (J.Z.); (D.Z.); (W.Z.); (G.L.); (L.L.)
| | - Jianxiang Zheng
- College of Energy, Xiamen University, Xiamen 361005, China; (P.M.); (J.Z.); (D.Z.); (W.Z.); (G.L.); (L.L.)
- Fujian Research Center for Nuclear Engineering, Xiamen 361005, China
| | - Danting Zhao
- College of Energy, Xiamen University, Xiamen 361005, China; (P.M.); (J.Z.); (D.Z.); (W.Z.); (G.L.); (L.L.)
| | - Wenjie Zhang
- College of Energy, Xiamen University, Xiamen 361005, China; (P.M.); (J.Z.); (D.Z.); (W.Z.); (G.L.); (L.L.)
| | - Gonghao Lu
- College of Energy, Xiamen University, Xiamen 361005, China; (P.M.); (J.Z.); (D.Z.); (W.Z.); (G.L.); (L.L.)
| | - Lingxin Lin
- College of Energy, Xiamen University, Xiamen 361005, China; (P.M.); (J.Z.); (D.Z.); (W.Z.); (G.L.); (L.L.)
| | - Zeyuan Zhao
- Fujian Key Laboratory of Functional Marine Sensing Materials, Minjiang University, Fuzhou 350108, China;
| | - Zijing Huang
- College of Energy, Xiamen University, Xiamen 361005, China; (P.M.); (J.Z.); (D.Z.); (W.Z.); (G.L.); (L.L.)
- Fujian Research Center for Nuclear Engineering, Xiamen 361005, China
- Correspondence: (Z.H.); (L.C.)
| | - Liuxuan Cao
- College of Energy, Xiamen University, Xiamen 361005, China; (P.M.); (J.Z.); (D.Z.); (W.Z.); (G.L.); (L.L.)
- Fujian Research Center for Nuclear Engineering, Xiamen 361005, China
- Correspondence: (Z.H.); (L.C.)
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171
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Zhuang P, Guo Z, Wang S, Zhang Q, Zhang M, Fu L, Min H, Li B, Zhang K. Interfacial Hydrothermal Assembly of Three-Dimensional Lamellar Reduced Graphene Oxide Aerogel Membranes for Water Self-Purification. ACS OMEGA 2021; 6:30656-30665. [PMID: 34805693 PMCID: PMC8600619 DOI: 10.1021/acsomega.1c04466] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 10/26/2021] [Indexed: 06/13/2023]
Abstract
Energy-saving membrane separation for water purification is increasingly desired, which requires appropriate nanofiltration membranes enabling to reject undesired solutes efficiently and allows high permeation of water. Herein, we report the fabrication of three-dimensional lamellar reduced graphene oxide (rGO) hydrogel membranes with a one-step, environment-friendly and water/vapor interfacial hydrothermal assembly process and the corresponding aerogel membranes by the freeze-drying method. The structures of the aerogel membranes can be tuned from lamellar to porously interconnected morphologies by controlling the volume of GO suspensions during the hydrothermal process. The rGO aerogel membrane was extremely flexible, which can be bent in liquid nitrogen and boiling water without any deformation, and highly stable in various solvents for at least 2 months. When used as nanofiltration membranes, the rGO aerogel membranes showed ∼100% rejection of organic dyes and a moderate water flux (up to 53 L m-2 h-1) only under the gravity of organic dye aqueous solutions of a 30 cm height. This water self-purification property of our flexible and stable aerogel membranes without extra energy consumption provides a possibility to make cheap, portable water purification devices for utilization in emergency and home-used water purification systems in the areas with electricity unavailable or inconvenient.
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Affiliation(s)
- Pengyu Zhuang
- Zhengzhou
Tobacco Research Institute of CNTC, Zhengzhou 450001, China
- Department
of Macromolecular Science, Fudan University, Shanghai 200433, China
| | - Zhongya Guo
- Zhengzhou
Tobacco Research Institute of CNTC, Zhengzhou 450001, China
| | - Shuang Wang
- Zhengzhou
Tobacco Research Institute of CNTC, Zhengzhou 450001, China
| | - Qi Zhang
- Zhengzhou
Tobacco Research Institute of CNTC, Zhengzhou 450001, China
| | - Mingjian Zhang
- Zhengzhou
Tobacco Research Institute of CNTC, Zhengzhou 450001, China
| | - Lili Fu
- Zhengzhou
Tobacco Research Institute of CNTC, Zhengzhou 450001, China
- Guangzhou
Institute of Energy Conversion, Chinese
Academy of Sciences, Guangzhou 510640, China
| | - Han Min
- Zhengzhou
University, Zhengzhou 450001, China
| | - Bin Li
- Zhengzhou
Tobacco Research Institute of CNTC, Zhengzhou 450001, China
| | - Ke Zhang
- Zhengzhou
Tobacco Research Institute of CNTC, Zhengzhou 450001, China
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172
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Corti HR, Appignanesi GA, Barbosa MC, Bordin JR, Calero C, Camisasca G, Elola MD, Franzese G, Gallo P, Hassanali A, Huang K, Laria D, Menéndez CA, de Oca JMM, Longinotti MP, Rodriguez J, Rovere M, Scherlis D, Szleifer I. Structure and dynamics of nanoconfined water and aqueous solutions. THE EUROPEAN PHYSICAL JOURNAL. E, SOFT MATTER 2021; 44:136. [PMID: 34779954 DOI: 10.1140/epje/s10189-021-00136-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 10/06/2021] [Indexed: 06/13/2023]
Abstract
This review is devoted to discussing recent progress on the structure, thermodynamic, reactivity, and dynamics of water and aqueous systems confined within different types of nanopores, synthetic and biological. Currently, this is a branch of water science that has attracted enormous attention of researchers from different fields interested to extend the understanding of the anomalous properties of bulk water to the nanoscopic domain. From a fundamental perspective, the interactions of water and solutes with a confining surface dramatically modify the liquid's structure and, consequently, both its thermodynamical and dynamical behaviors, breaking the validity of the classical thermodynamic and phenomenological description of the transport properties of aqueous systems. Additionally, man-made nanopores and porous materials have emerged as promising solutions to challenging problems such as water purification, biosensing, nanofluidic logic and gating, and energy storage and conversion, while aquaporin, ion channels, and nuclear pore complex nanopores regulate many biological functions such as the conduction of water, the generation of action potentials, and the storage of genetic material. In this work, the more recent experimental and molecular simulations advances in this exciting and rapidly evolving field will be reported and critically discussed.
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Affiliation(s)
- Horacio R Corti
- Departmento de Física de la Materia Condensada & Instituto de Nanociencia y Nanotecnología (CNEA-CONICET), Comisión Nacional de Energía Atómica, B1650LWP, Buenos Aires, Argentina.
| | - Gustavo A Appignanesi
- INQUISUR, Departamento de Química, Universidad Nacional del Sur (UNS)-CONICET, 8000, Bahía Blanca, Argentina
| | - Marcia C Barbosa
- Institute of Physics, Federal University of Rio Grande do Sul, 91501-970, Porto Alegre, Brazil
| | - J Rafael Bordin
- Department of Physics, Institute of Physics and Mathematics, 96050-500, Pelotas, RS, Brazil
| | - Carles Calero
- Secció de Física Estadística i Interdisciplinària - Departament de Física de la Matèria Condensada, Universitat de Barcelona & Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona, 08028, Barcelona, Spain
| | - Gaia Camisasca
- Dipartimento di Matematica e Fisica, Università degli Studi Roma Tre, 00146, Roma, Italy
| | - M Dolores Elola
- Departmento de Física de la Materia Condensada & Instituto de Nanociencia y Nanotecnología (CNEA-CONICET), Comisión Nacional de Energía Atómica, B1650LWP, Buenos Aires, Argentina
| | - Giancarlo Franzese
- Secció de Física Estadística i Interdisciplinària - Departament de Física de la Matèria Condensada, Universitat de Barcelona & Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona, 08028, Barcelona, Spain
| | - Paola Gallo
- Dipartimento di Matematica e Fisica, Università degli Studi Roma Tre, 00146, Roma, Italy
| | - Ali Hassanali
- Condensed Matter and Statistical Physics Section (CMSP), The International Center for Theoretical Physics (ICTP), Trieste, Italy
| | - Kai Huang
- Institute of Systems and Physical Biology, Shenzhen Bay Laboratory, Shenzhen, Guangdong, China
| | - Daniel Laria
- Departmento de Física de la Materia Condensada & Instituto de Nanociencia y Nanotecnología (CNEA-CONICET), Comisión Nacional de Energía Atómica, B1650LWP, Buenos Aires, Argentina
- Instituto de Química Física de los Materiales, Medio Ambiente y Energía (INQUIMAE-CONICET), Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Cintia A Menéndez
- INQUISUR, Departamento de Química, Universidad Nacional del Sur (UNS)-CONICET, 8000, Bahía Blanca, Argentina
| | - Joan M Montes de Oca
- INQUISUR, Departamento de Química, Universidad Nacional del Sur (UNS)-CONICET, 8000, Bahía Blanca, Argentina
| | - M Paula Longinotti
- Instituto de Química Física de los Materiales, Medio Ambiente y Energía (INQUIMAE-CONICET), Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Javier Rodriguez
- Departmento de Física de la Materia Condensada & Instituto de Nanociencia y Nanotecnología (CNEA-CONICET), Comisión Nacional de Energía Atómica, B1650LWP, Buenos Aires, Argentina
- Escuela de Ciencia y Tecnología, Universidad Nacional de General San Martín, San Martín, Buenos Aires, Argentina
| | - Mauro Rovere
- Dipartimento di Matematica e Fisica, Università degli Studi Roma Tre, 00146, Roma, Italy
| | - Damián Scherlis
- Instituto de Química Física de los Materiales, Medio Ambiente y Energía (INQUIMAE-CONICET), Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Igal Szleifer
- Biomedical Engineering Department, Northwestern University, Evanston, USA
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173
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Electrochemical degradation of emerging pollutants via laser-induced graphene electrodes. CHEMICAL ENGINEERING JOURNAL ADVANCES 2021. [DOI: 10.1016/j.ceja.2021.100195] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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174
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175
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Wen J, Tang W, Kang Z, Liao Q, Hong M, Du J, Zhang X, Yu H, Si H, Zhang Z, Zhang Y. Direct Charge Trapping Multilevel Memory with Graphdiyne/MoS 2 Van der Waals Heterostructure. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2101417. [PMID: 34499424 PMCID: PMC8564425 DOI: 10.1002/advs.202101417] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 07/23/2021] [Indexed: 05/09/2023]
Abstract
Direct charge trapping memory, a new concept memory without any dielectric, has begun to attract attention. However, such memory is still at the incipient stage, of which the charge-trapping capability depends on localized electronic states that originated from the limited surface functional groups. To further advance such memory, a material with rich hybrid states is highly desired. Here, a van der Waals heterostructure design is proposed utilizing the 2D graphdiyne (GDY) which possesses abundant hybrid states with different chemical groups. In order to form the desirable van der Waals coupling, the plasma etching method is used to rapidly achieve the ultrathin 2D GDY with smooth surface for the first time. With the plasma-treated 2D GDY as charge-trapping layer, a direct charge-trapping memory based on GDY/MoS2 is constructed. This bilayer memory is featured with large memory window (90 V) and high degree of modulation (on/off ratio around 8 × 107 ). Two operating mode can be achieved and data storage capability of 9 and 10 current levels can be obtained, respectively, in electronic and opto-electronic mode. This GDY/MoS2 memory introduces a novel application of GDY as rich states charge-trapping center and offers a new strategy of realizing high performance dielectric-free electronics, such as optical memories and artificial synaptic.
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Affiliation(s)
- Jialing Wen
- Academy for Advanced Interdisciplinary Science and TechnologyBeijing Advanced Innovation Center for Materials Genome EngineeringUniversity of Science and Technology BeijingBeijing100083P. R. China
- Beijing Key Laboratory for Advanced Energy Materials and TechnologiesSchool of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijing100083P. R. China
| | - Wenhui Tang
- Academy for Advanced Interdisciplinary Science and TechnologyBeijing Advanced Innovation Center for Materials Genome EngineeringUniversity of Science and Technology BeijingBeijing100083P. R. China
- Beijing Key Laboratory for Advanced Energy Materials and TechnologiesSchool of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijing100083P. R. China
| | - Zhuo Kang
- Academy for Advanced Interdisciplinary Science and TechnologyBeijing Advanced Innovation Center for Materials Genome EngineeringUniversity of Science and Technology BeijingBeijing100083P. R. China
- Beijing Key Laboratory for Advanced Energy Materials and TechnologiesSchool of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijing100083P. R. China
| | - Qingliang Liao
- Academy for Advanced Interdisciplinary Science and TechnologyBeijing Advanced Innovation Center for Materials Genome EngineeringUniversity of Science and Technology BeijingBeijing100083P. R. China
- Beijing Key Laboratory for Advanced Energy Materials and TechnologiesSchool of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijing100083P. R. China
| | - Mengyu Hong
- Academy for Advanced Interdisciplinary Science and TechnologyBeijing Advanced Innovation Center for Materials Genome EngineeringUniversity of Science and Technology BeijingBeijing100083P. R. China
- Beijing Key Laboratory for Advanced Energy Materials and TechnologiesSchool of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijing100083P. R. China
| | - Junli Du
- Academy for Advanced Interdisciplinary Science and TechnologyBeijing Advanced Innovation Center for Materials Genome EngineeringUniversity of Science and Technology BeijingBeijing100083P. R. China
- Beijing Key Laboratory for Advanced Energy Materials and TechnologiesSchool of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijing100083P. R. China
| | - Xiankun Zhang
- Academy for Advanced Interdisciplinary Science and TechnologyBeijing Advanced Innovation Center for Materials Genome EngineeringUniversity of Science and Technology BeijingBeijing100083P. R. China
- Beijing Key Laboratory for Advanced Energy Materials and TechnologiesSchool of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijing100083P. R. China
| | - Huihui Yu
- Academy for Advanced Interdisciplinary Science and TechnologyBeijing Advanced Innovation Center for Materials Genome EngineeringUniversity of Science and Technology BeijingBeijing100083P. R. China
- Beijing Key Laboratory for Advanced Energy Materials and TechnologiesSchool of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijing100083P. R. China
| | - Haonan Si
- Academy for Advanced Interdisciplinary Science and TechnologyBeijing Advanced Innovation Center for Materials Genome EngineeringUniversity of Science and Technology BeijingBeijing100083P. R. China
- Beijing Key Laboratory for Advanced Energy Materials and TechnologiesSchool of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijing100083P. R. China
| | - Zheng Zhang
- Academy for Advanced Interdisciplinary Science and TechnologyBeijing Advanced Innovation Center for Materials Genome EngineeringUniversity of Science and Technology BeijingBeijing100083P. R. China
- Beijing Key Laboratory for Advanced Energy Materials and TechnologiesSchool of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijing100083P. R. China
| | - Yue Zhang
- Academy for Advanced Interdisciplinary Science and TechnologyBeijing Advanced Innovation Center for Materials Genome EngineeringUniversity of Science and Technology BeijingBeijing100083P. R. China
- Beijing Key Laboratory for Advanced Energy Materials and TechnologiesSchool of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijing100083P. R. China
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176
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Zhao WJ, Liang L, Kong Z, Shen JW. A review on desalination by graphene-based biomimetic nanopore: From the computational modelling perspective. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117582] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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177
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Kim TN, Lee J, Choi JH, Ahn JH, Yang E, Hwang MH, Chae KJ. Tunable atomic level surface functionalization of a multi-layered graphene oxide membrane to break the permeability-selectivity trade-off in salt removal of brackish water. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119047] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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178
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Hydrophilic and underwater superoleophobic porous graphitic carbon nitride (g-C 3N 4) membranes with photo-Fenton self-cleaning ability for efficient oil/water separation. J Colloid Interface Sci 2021; 608:1960-1972. [PMID: 34749146 DOI: 10.1016/j.jcis.2021.10.162] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 10/25/2021] [Accepted: 10/26/2021] [Indexed: 12/28/2022]
Abstract
Due to the great fouling resistance property, (super)hydrophilic/underwater superoleophobic membranes are prevalent candidates for oil-polluted wastewater treatment. Even so, membrane fouling inevitably occurs during long-term operation. Therefore, it is of great significance to construct anti-fouling membranes with robust flux recovery. Herein, a polyvinyl pyrrolidone (PVP) coated porous potassium-doped g-C3N4 (PKCN) membrane was fabricated for the first time by vacuum filtration. The as-prepared membrane displays enhanced hydrophilicity and underwater superoleophobicity. The permeability of the membrane increased significantly after sonication treatment, which is attributed to the increased pore volume and small nanosheets size that shorten the transport pathway of water molecules. Importantly, owing to the high photo-Fenton activity, the PKCN membrane exhibits fast (within 15 min) and excellent flux recovery (96.5%) after the photo-Fenton cleaning process. Furthermore, after 10 repeated usages, the PKCN membrane still keeps stable permeability and excellent purification efficiency. This work opens a door for developing self-cleaning membranes with the superior anti-fouling ability for effective oil/water separation.
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179
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Green Synthesis of Silver Nanoparticles as an Effective Antibiofouling Material for Polyvinylidene Fluoride (PVDF) Ultrafiltration Membrane. Polymers (Basel) 2021; 13:polym13213683. [PMID: 34771241 PMCID: PMC8588217 DOI: 10.3390/polym13213683] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 10/13/2021] [Accepted: 10/19/2021] [Indexed: 01/14/2023] Open
Abstract
Silver nanoparticles (AgNPs) were successfully synthesized using the aqueous extract of the Paronychia argentea Lam (P. argentea) wild plant. The results showed that the conversion of Ag+ to Ag0 nanoparticles ratio reached 96.5% as determined by Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES), with a negative zeta potential (ζ) of −21.3 ± 7.68 mV of AgNPs expected to improve the stability of synthesized AgNPs. AgNP antibacterial activity has been examined against Streptococcus aureus (S. aureus) and Escherichia coli (E. coli) bacteria. The minimum inhibition concentration (MIC) was 4.9 µL/mL for both E. coli and S. aureus bacteria, while the minimum bactericidal concentrations (MBC) were 19.9 µL/mL and 4.9 µL/mL for S. aureus and E. coli, respectively. The synthesized AgNPs were incorporated in ultrafiltration polyvinylidene Fluoride (PVDF) membranes and showed remarkable antibiofouling behavior against both bacterial strains. The membranes were characterized using Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), and X-ray diffraction (XRD). The contact angle and porosity of the membrane were also determined. The efficiency of the membranes regarding rejection rate was assessed using bovine serum albumin (BSA). It was found in the flux experiments that membranes BSA rejection was 99.4% and 98.7% with and without AgNPs, respectively.
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180
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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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181
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Cao Z, Markey G, Barati Farimani A. Ozark Graphene Nanopore for Efficient Water Desalination. J Phys Chem B 2021; 125:11256-11263. [PMID: 34591487 DOI: 10.1021/acs.jpcb.1c06327] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A nanoporous graphene membrane is crucial to energy-efficient reverse osmosis water desalination given its high permeation rate and ion selectivity. However, the ion selectivity of the common circular graphene nanopore is dependent on the pore size and scales inversely with the water permeation rate. Larger, circular graphene nanopores give rise to the high water permeation rate but compromise the ability to reject ions. Therefore, the pursuit of a higher permeation rate while maintaining high ion selectivity can be challenging. In this work, we discover that the geometry of graphene nanopore can play a significant role in its water desalination performance. We demonstrate that the ozark graphene nanopore, which has an irregular slim shape, can reject over 12% more ions compared with a circular nanopore with the same water permeation rate. To reveal the physical reason behind the outstanding performance of the ozark nanopore, we compared it with circular, triangular, and rhombic pores from perspectives including interfacial water density, energy barrier, water/ion distribution in pores, the ion-water RDF in pores, and the hydraulic diameter. The ozark graphene nanopore further explores the potential of graphene for efficient water desalination.
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Affiliation(s)
- Zhonglin Cao
- Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Greta Markey
- Department of Civil and Environmental Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Amir Barati Farimani
- Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States.,Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
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182
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Li J, Lv J, Hao YC, Chen LW, Zuo Y, Liu Y, Li S, Zhang F, Deng F, Yin AX, Zhou J, Li P, Wang B. Nanoporous Graphene via a Pressing Organization Calcination Strategy for Highly Efficient Electrocatalytic Hydrogen Peroxide Generation. ACS APPLIED MATERIALS & INTERFACES 2021; 13:47478-47487. [PMID: 34601863 DOI: 10.1021/acsami.1c11673] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Nanoporous graphenes (NPGs) have recently attracted huge attention owing to their designable structures and diverse properties. Many important properties of NPGs are determined by their structural regularity and homogeneity. The mass production of NPGs with periodic well-defined pore structures under a solvent-free green synthesis poses a great challenge and is largely unexplored. A facile synthetic strategy of NPGs via pressing organization calcination (POC) of readily available halogenated polycyclic aromatic hydrocarbons is developed. The gram-scale synthesized NPGs have ordered structures and possess well-defined nanopores, which can be easily exfoliated to few layers and oxidized in controllable approaches. After being decorated with oxygen species, the oxidized NPGs with tunable catalytic centers exhibit high activity, selectivity, and stability toward electrochemical hydrogen peroxide generation.
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Affiliation(s)
- Jiani Li
- Key Laboratory of Cluster Science Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic, Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Jianning Lv
- Key Laboratory of Cluster Science Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic, Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Yu-Chen Hao
- Key Laboratory of Cluster Science Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic, Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Li-Wei Chen
- Key Laboratory of Cluster Science Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic, Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Yiming Zuo
- Key Laboratory of Cluster Science Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic, Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Yanze Liu
- Key Laboratory of Cluster Science Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic, Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Shuai Li
- Key Laboratory of Cluster Science Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic, Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Fang Zhang
- Analysis and Testing Center Department, Beijing Institute of Technology, Beijing 100081, China
| | - Fang Deng
- School of Automation, Beijing Institute of Technology, Beijing 100081, China
| | - An-Xiang Yin
- Key Laboratory of Cluster Science Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic, Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Junwen Zhou
- Key Laboratory of Cluster Science Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic, Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Pengfei Li
- Key Laboratory of Cluster Science Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic, Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Bo Wang
- Key Laboratory of Cluster Science Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic, Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
- Advanced Technology Research Institute (Jinan), Beijing Institute of Technology, Jinan 250300, China
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183
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Lan Q, Feng C, Wang Z, Li L, Wang Y, Liu T. Chemically Laminating Graphene Oxide Nanosheets with Phenolic Nanomeshes for Robust Membranes with Fast Desalination. NANO LETTERS 2021; 21:8236-8243. [PMID: 34597051 DOI: 10.1021/acs.nanolett.1c02683] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Graphene oxide (GO) is receiving tremendous attention in membrane separation; however, its desalination performances remain suboptimal because of excessive swelling and tortuous transport pathways. Herein, we chemically joint GO nanosheets and phenolic nanomeshes together to form laminated membranes comprising through-plane nanopores and stabilized nanochannels. GO and phenolic/polyether nanosheets are mixed to form stacked structures and then treated in H2SO4 to remove polyether to produce nanomeshes and to chemically joint GO with phenolic nanomeshes. Thus-synthesized laminated membranes possess enhanced interlayer interactions and narrowed interlayer spacings down to 6.4 Å. They exhibit water permeance up to 165.6 L/(m2 h bar) and Na2SO4 rejection of 97%, outperforming most GO-based membranes reported so far. Moreover, the membranes are exceptionally stable in water because the chemically jointed laminates suppress the swelling of GO. This work reports hybrid laminated structures of GO and phenolic nanomeshes, which are highly desired in desalination and other applications.
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Affiliation(s)
- Qianqian Lan
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Chao Feng
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Zicheng Wang
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Le Li
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Yong Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, People's Republic of China
| | - Tianxi Liu
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
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184
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Wang Z, Lv TY, Shi ZB, Yang SS, Gu ZY. Two-dimensional materials as solid-state nanopores for chemical sensing. Dalton Trans 2021; 50:13608-13619. [PMID: 34518861 DOI: 10.1039/d1dt02206g] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Solid-state nanopores as a versatile alternative to biological nanopores have grown tremendously over the last two decades. They exhibit unique characteristics including mechanical robustness, thermal and chemical stability, easy modifications and so on. Moreover, the pore size of a solid-state nanopore could be accurately controlled from sub-nanometers to hundreds of nanometers based on the experimental requirements, presenting better adaptability than biological nanopores. Two-dimensional (2D) materials with single layer thicknesses and highly ordered structures have great potential as solid-state nanopores. In this perspective, we introduced three kinds of substrate-supported 2D material solid-state nanopores, including graphene, MoS2 and MOF nanosheets, which exhibited big advantages compared to traditional solid-state nanopores and other biological counterparts. Besides, we suggested the fabrication and modulation of 2D material solid-state nanopores. We also discussed the applications of 2D materials as solid-state nanopores for ion transportation, DNA sequencing and biomolecule detection.
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Affiliation(s)
- Zhan Wang
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China.
| | - Tian-Yi Lv
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China.
| | - Zi-Bo Shi
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China.
| | - Shi-Shu Yang
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China.
- Henan Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, P. R. China.
| | - Zhi-Yuan Gu
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China.
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185
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The effect of nanopores geometry on desalination of single-layer graphene-based membranes: A molecular dynamics study. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116749] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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186
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Vats N, Negi DS, Singh D, Sigle W, Abb S, Sen S, Szilagyi S, Ochner H, Ahuja R, Kern K, Rauschenbach S, van Aken PA. Catalyzing Bond-Dissociation in Graphene via Alkali-Iodide Molecules. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2102037. [PMID: 34528384 DOI: 10.1002/smll.202102037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 06/21/2021] [Indexed: 06/13/2023]
Abstract
Atomic design of a 2D-material such as graphene can be substantially influenced by etching, deliberately induced in a transmission electron microscope. It is achieved primarily by overcoming the threshold energy for defect formation by controlling the kinetic energy and current density of the fast electrons. Recent studies have demonstrated that the presence of certain species of atoms can catalyze atomic bond dissociation processes under the electron beam by reducing their threshold energy. Most of the reported catalytic atom species are single atoms, which have strong interaction with single-layer graphene (SLG). Yet, no such behavior has been reported for molecular species. This work shows by experimentally comparing the interaction of alkali and halide species separately and conjointly with SLG, that in the presence of electron irradiation, etching of SLG is drastically enhanced by the simultaneous presence of alkali and iodine atoms. Density functional theory and first principles molecular dynamics calculations reveal that due to charge-transfer phenomena the CC bonds weaken close to the alkali-iodide species, which increases the carbon displacement cross-section. This study ascribes pronounced etching activity observed in SLG to the catalytic behavior of the alkali-iodide species in the presence of electron irradiation.
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Affiliation(s)
- Nilesh Vats
- Max Planck Institute for Solid State Research, Heisenberstr.1, 70569, Stuttgart, Germany
| | - Devendra S Negi
- Max Planck Institute for Solid State Research, Heisenberstr.1, 70569, Stuttgart, Germany
| | - Deobrat Singh
- Condensed Matter Theory Group, Materials Theory Division, Department of Physics and Astronomy, Uppsala University, Box 516, Uppsala, 75120, Sweden
| | - Wilfried Sigle
- Max Planck Institute for Solid State Research, Heisenberstr.1, 70569, Stuttgart, Germany
| | - Sabine Abb
- Max Planck Institute for Solid State Research, Heisenberstr.1, 70569, Stuttgart, Germany
| | - Suman Sen
- Max Planck Institute for Solid State Research, Heisenberstr.1, 70569, Stuttgart, Germany
| | - Sven Szilagyi
- Max Planck Institute for Solid State Research, Heisenberstr.1, 70569, Stuttgart, Germany
| | - Hannah Ochner
- Max Planck Institute for Solid State Research, Heisenberstr.1, 70569, Stuttgart, Germany
| | - Rajeev Ahuja
- Max Planck Institute for Solid State Research, Heisenberstr.1, 70569, Stuttgart, Germany
- Condensed Matter Theory Group, Materials Theory Division, Department of Physics and Astronomy, Uppsala University, Box 516, Uppsala, 75120, Sweden
- Department of Physics, Indian Institute of Technology Ropar, Rupnagar, Punjab, 140001, India
| | - Klaus Kern
- Max Planck Institute for Solid State Research, Heisenberstr.1, 70569, Stuttgart, Germany
- Institut de Physique de la Matière Condensée, École Polytechnique Fédérale de Lausanne, Lausanne, CH-1015, Switzerland
| | - Stephan Rauschenbach
- Max Planck Institute for Solid State Research, Heisenberstr.1, 70569, Stuttgart, Germany
- Department of Chemistry, University of Oxford, 12, Mansfield Road, Oxford, OX1 3TA, UK
| | - Peter A van Aken
- Max Planck Institute for Solid State Research, Heisenberstr.1, 70569, Stuttgart, Germany
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187
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Yang R, Fan Y, Yu R, Dai F, Lan J, Wang Z, Chen J, Chen L. Robust reduced graphene oxide membranes with high water permeance enhanced by K+ modification. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119437] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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188
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A Review: Ion Transport of Two-Dimensional Materials in Novel Technologies from Macro to Nanoscopic Perspectives. ENERGIES 2021. [DOI: 10.3390/en14185819] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Ion transport is a significant concept that underlies a variety of technologies including membrane technology, energy storages, optical, chemical, and biological sensors and ion-mobility exploration techniques. These applications are based on the concepts of capacitance and ion transport, so a prior understanding of capacitance and ion transport phenomena is crucial. In this review, the principles of capacitance and ion transport are described from a theoretical and practical point of view. The review covers the concepts of Helmholtz capacitance, diffuse layer capacitance and space charge capacitance, which is also referred to as quantum capacitance in low-dimensional materials. These concepts are attributed to applications in the electrochemical technologies such as energy storage and excitable ion sieving in membranes. This review also focuses on the characteristic role of channel heights (from micrometer to angstrom scales) in ion transport. Ion transport technologies can also be used in newer applications including biological sensors and multifunctional microsupercapacitors. This review improves our understanding of ion transport phenomena and demonstrates various applications that is applicable of the continued development in the technologies described.
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189
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Bottom-up synthesis of graphene films hosting atom-thick molecular-sieving apertures. Proc Natl Acad Sci U S A 2021; 118:2022201118. [PMID: 34493654 DOI: 10.1073/pnas.2022201118] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Incorporation of a high density of molecular-sieving nanopores in the graphene lattice by the bottom-up synthesis is highly attractive for high-performance membranes. Herein, we achieve this by a controlled synthesis of nanocrystalline graphene where incomplete growth of a few nanometer-sized, misoriented grains generates molecular-sized pores in the lattice. The density of pores is comparable to that obtained by the state-of-the-art postsynthetic etching (1012 cm-2) and is up to two orders of magnitude higher than that of molecular-sieving intrinsic vacancy defects in single-layer graphene (SLG) prepared by chemical vapor deposition. The porous nanocrystalline graphene (PNG) films are synthesized by precipitation of C dissolved in the Ni matrix where the C concentration is regulated by controlled pyrolysis of precursors (polymers and/or sugar). The PNG film is made of few-layered graphene except near the grain edge where the grains taper down to a single layer and eventually terminate into vacancy defects at a node where three or more grains meet. This unique nanostructure is highly attractive for the membranes because the layered domains improve the mechanical robustness of the film while the atom-thick molecular-sized apertures allow the realization of large gas transport. The combination of gas permeance and gas pair selectivity is comparable to that from the nanoporous SLG membranes prepared by state-of-the-art postsynthetic lattice etching. Overall, the method reported here improves the scale-up potential of graphene membranes by cutting down the processing steps.
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190
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Shen L, Shi Q, Zhang S, Gao J, Cheng DC, Yi M, Song R, Wang L, Jiang J, Karnik R, Zhang S. Highly porous nanofiber-supported monolayer graphene membranes for ultrafast organic solvent nanofiltration. SCIENCE ADVANCES 2021; 7:eabg6263. [PMID: 34516873 PMCID: PMC8442935 DOI: 10.1126/sciadv.abg6263] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 07/16/2021] [Indexed: 05/25/2023]
Abstract
Scalable fabrication of monolayer graphene membrane on porous supports is key to realizing practical applications of atomically thin membranes, but it is technologically challenging. Here, we demonstrate a facile and versatile electrospinning approach to realize nanoporous graphene membranes on different polymeric supports with high porosity for efficient diffusion- and pressure-driven separations. The conductive graphene works as an excellent receptor for deposition of highly porous nanofibers during electrospinning, thereby enabling direct attachment of graphene to the support. A universal “binder” additive is shown to enhance adhesion between the graphene layer and polymeric supports, resulting in high graphene coverage on nanofibers made from different polymers. After defect sealing and oxygen plasma treatment, the resulting nanoporous membranes demonstrate record-high performances in dialysis and organic solvent nanofiltration, with a pure ethanol permeance of 156.8 liters m−2 hour−1 bar−1 and 94.5% rejection to Rose Bengal (1011 g mol−1) that surpasses the permeability-selectivity trade-off.
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Affiliation(s)
- Liang Shen
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117576, Singapore
| | - Qi Shi
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117576, Singapore
| | - Shengping Zhang
- School of Electronics Engineering and Computer Science, Institute of Microelectronics, Peking University, Beijing 100871, P.R. China
| | - Jie Gao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117576, Singapore
| | - David Chi Cheng
- Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Ming Yi
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science and Technology), Ministry of Education, Wuhan 430074, P.R. China
| | - Ruiyang Song
- School of Electronics Engineering and Computer Science, Institute of Microelectronics, Peking University, Beijing 100871, P.R. China
| | - Luda Wang
- School of Electronics Engineering and Computer Science, Institute of Microelectronics, Peking University, Beijing 100871, P.R. China
| | - Jianwen Jiang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117576, Singapore
| | - Rohit Karnik
- Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Sui Zhang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117576, Singapore
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191
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Krishnakumar R, James A, Swathi RS. Metal‐Decorated Crown Ether‐Embedded Graphene Nanomeshes for Enhanced Molecular Adsorption. ADVANCED THEORY AND SIMULATIONS 2021. [DOI: 10.1002/adts.202100202] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Rohini Krishnakumar
- School of Chemistry Indian Institute of Science Education and Research Thiruvananthapuram (IISER TVM) Vithura Thiruvananthapuram 695551 India
| | - Anto James
- School of Chemistry Indian Institute of Science Education and Research Thiruvananthapuram (IISER TVM) Vithura Thiruvananthapuram 695551 India
| | - Rotti Srinivasamurthy Swathi
- School of Chemistry Indian Institute of Science Education and Research Thiruvananthapuram (IISER TVM) Vithura Thiruvananthapuram 695551 India
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192
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Wang G, Yan T, Shen J, Zhang J, Zhang D. Capacitive Removal of Fluoride Ions via Creating Multiple Capture Sites in a Modulatory Heterostructure. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:11979-11986. [PMID: 34427438 DOI: 10.1021/acs.est.1c03228] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Fluoride pollution has become a major concern because of its adverse effects on human health. However, the removal capacity of defluorination agents in traditional methods is far from satisfactory. Herein, capacitive removal of F- ions via creating multiple capture sites in a modulatory heterostructure has been originally demonstrated. The heterostructure of uniformly dispersed Al2O3 coating on hollow porous nitrogen-doped carbon frameworks was precisely synthesized by atomic layer deposition. An exceptional F- ion removal efficiency at 1.2 V (95.8 and 92.9% in 5 and 10 mg/L F- solutions, respectively) could be finally achieved, with a good regeneration ability after 20 consecutive defluorination cycles. Furthermore, we investigated the removal mechanisms of F- ions by in situ Raman, in situ X-ray diffraction, and ex situ X-ray photoelectron spectroscopy measurements. The promotional removal capacity was realized by the multiple capture sites of the reversible conversion of Al-F species and the insertion of F- ions into the carbon skeleton. This work offers an important new pathway and deep understanding for efficient removal of F- ions from wastewater.
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Affiliation(s)
- Guizhi Wang
- International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, Research Center of Nano Science and Technology, College of Sciences, State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, Shanghai University, No.99 Shangda Road, Shanghai 200444, China
| | - Tingting Yan
- International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, Research Center of Nano Science and Technology, College of Sciences, State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, Shanghai University, No.99 Shangda Road, Shanghai 200444, China
| | - Junjie Shen
- Department of Chemical Engineering, University of Bath, Bath BA2 7AY, U.K
| | - Jianping Zhang
- International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, Research Center of Nano Science and Technology, College of Sciences, State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, Shanghai University, No.99 Shangda Road, Shanghai 200444, China
| | - Dengsong Zhang
- International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, Research Center of Nano Science and Technology, College of Sciences, State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, Shanghai University, No.99 Shangda Road, Shanghai 200444, China
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193
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Vivas VH, da Cunha THR, Ferlauto AS, de Souza Figueiredo KC. Process of production of CVD graphene membrane for desalination and water treatment: a review of experimental research results. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2021. [DOI: 10.1007/s43153-021-00119-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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194
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Giri AK, Cordeiro MND. Heavy metal ion separation from industrial wastewater using stacked graphene Membranes: A molecular dynamics simulation study. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116688] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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195
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Ji YL, Gu BX, Xie SJ, Yin MJ, Qian WJ, Zhao Q, Hung WS, Lee KR, Zhou Y, An QF, Gao CJ. Superfast Water Transport Zwitterionic Polymeric Nanofluidic Membrane Reinforced by Metal-Organic Frameworks. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2102292. [PMID: 34346108 DOI: 10.1002/adma.202102292] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 05/19/2021] [Indexed: 06/13/2023]
Abstract
Nanofluidics derived from low-dimensional nanosheets and protein nanochannels are crucial for advanced catalysis, sensing, and separation. However, polymer nanofluidics is halted by complicated preparation and miniaturized sizes. This work reports the bottom-up synthesis of modular nanofluidics by confined growth of ultrathin metal-organic frameworks (MOFs) in a polymer membrane consisting of zwitterionic dopamine nanoparticles (ZNPs). The confined growth of the MOFs on the ZNPs reduces the chain entanglement between the ZNPs, leading to stiff interfacial channels enhancing the nanofluidic transport of water molecules through the membrane. As such, the water permeability and solute selectivity of MOF@ZNPM are one magnitude improved, leading to a record-high performance among all polymer nanofiltration membranes. Both the experimental work and the molecular dynamics simulations confirm that the water transport is shifted from high-friction-resistance conventional viscous flow to ultrafast nanofluidic flow as a result of rigid and continuous nanochannels in MOF@ZNPM.
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Affiliation(s)
- Yan-Li Ji
- Center for Membrane and Water Science and Technology, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Bing-Xin Gu
- Center for Membrane and Water Science and Technology, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Shi-Jie Xie
- Center for Membrane and Water Science and Technology, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Ming-Jie Yin
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Environmental and Chemical Engineering, Beijing University of Technology, Beijing, 100124, China
| | - Wei-Jie Qian
- Center for Membrane and Water Science and Technology, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Qiang Zhao
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Wei-Song Hung
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan
| | - Kueir-Rarn Lee
- R&D Center for Membrane Technology, Department of Chemical Engineering, Chung Yuan University, Chung-Li, 32023, Taiwan
| | - Yong Zhou
- Center for Membrane and Water Science and Technology, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Quan-Fu An
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Environmental and Chemical Engineering, Beijing University of Technology, Beijing, 100124, China
| | - Cong-Jie Gao
- Center for Membrane and Water Science and Technology, Zhejiang University of Technology, Hangzhou, 310014, China
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196
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Impact of a Graphene Oxide Reducing Agent on a Semi-Permeable Graphene/Reduced Graphene Oxide Forward Osmosis Membrane Filtration Efficiency. MEMBRANES 2021; 11:membranes11090679. [PMID: 34564495 PMCID: PMC8472789 DOI: 10.3390/membranes11090679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 08/23/2021] [Accepted: 08/26/2021] [Indexed: 11/24/2022]
Abstract
Graphene has been considered as a material that may overcome the limitations of polymer semi-permeable membranes in water treatment technology. However, monolayer graphene still suffers from defects that cause leakage. Here, we report a method of sealing defects in graphene transferred onto porous polymer substrate via reduced graphene oxide (rGO). The influence of various reducing agents (e.g., vitamin C, hydrazine) on the properties of rGO was investigated by SEM, Raman, FTIR, and XRD. Subsequently, membranes based on graphene/reduced graphene oxide were tested in a forward osmosis system using sodium chloride (NaCl). The effect of the effectiveness of the reduction of graphene oxide, the type and number of attached groups, the change in the distance between the rGO flakes, and the structure of this material were examined in terms of filtration efficiency. As a result, semi-permeable centimetre-scale membranes with ion blocking efficiency of up to 90% and water flux of 20 mL h−1 m−2 bar−1 were proposed.
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197
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Williams CD, Siperstein FR, Carbone P. High-throughput molecular simulations reveal the origin of ion free energy barriers in graphene oxide membranes. NANOSCALE 2021; 13:13693-13702. [PMID: 34477644 DOI: 10.1039/d1nr02169a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Graphene oxide (GO) membranes are highly touted as materials for contemporary separation challenges including desalination, yet understanding of the interplay between their structure and salt rejection is limited. K+ ion permeation through hydrated GO membranes was investigated by combining structurally realistic molecular models and high-throughput molecular dynamics simulations. We show that it is essential to consider the complex GO microstructure to quantitatively reproduce experimentally-derived free energy barriers to K+ permeation for membranes with various interlayer distances less than 1.3 nm. This finding confirms the non-uniformity of GO nanopores and the necessity of the high-throughput approach for this class of material. The large barriers arise due to significant dehydration of K+ inside the membrane, which can have as few as 3 coordinated water molecules, compared to 7 in bulk solution. Thus, even if the membranes have an average pore size larger than the ion's hydrated diameter, the significant presence of pores whose size is smaller than the hydrated diameter creates bottlenecks for the permeation process.
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Affiliation(s)
- Christopher D Williams
- Department of Chemical Engineering and Analytical Science, School of Engineering, The University of Manchester, Manchester, UK.
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198
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Liu R, Liu Z. Enhanced Evaporation of Ultrathin Water Films on Silicon-Terminated Si 3N 4 Nanopore Membranes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:10046-10051. [PMID: 34383493 DOI: 10.1021/acs.langmuir.1c01212] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Water evaporation confined in nanoscale is a ubiquitous phenomenon in nature and has crucial importance in a broad range of technical applications. With the nonequilibrium molecular dynamics simulation, we elucidate nanothin water film evaporation characteristics on a silicon nitride nanopore membrane considering the effects of pore size and pore chemistry. Pore chemistry plays the main role in regulating the evaporation flux. The terminated Si atoms on the pore surface lead to a higher evaporation intensity than the N ones. We attribute this enhancement to the transition of the structural properties of fluid, where liquid molecules are packed loosely and disorderedly under the inducement of terminated silicon atoms. The findings in the present work can contribute to the fundamental understanding of the nanopore-enhanced evaporation process and provide new guidance to the design of advanced nanopore membrane materials.
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Affiliation(s)
- Runkeng Liu
- School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zhenyu Liu
- School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
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199
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Liu Z, Zhou Z, Wu N, Zhang R, Zhu B, Jin H, Zhang Y, Zhu M, Chen Z. Hierarchical Photothermal Fabrics with Low Evaporation Enthalpy as Heliotropic Evaporators for Efficient, Continuous, Salt-Free Desalination. ACS NANO 2021; 15:13007-13018. [PMID: 34309381 DOI: 10.1021/acsnano.1c01900] [Citation(s) in RCA: 67] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Solar-driven seawater evaporation is usually achieved on floating evaporators, but the performances are substantially limited by high evaporation enthalpy, solid salt crystallization, and reduced evaporation due to inclined sunlight. To solve these problems, we fabricated hierarchical polyacrylonitrile@copper sulfide (PAN@CuS) fabrics and proposed a prototype of heliotropic evaporator. Hierarchical PAN@CuS fabrics show significantly decreased water-evaporation enthalpy (1956.32 kJ kg-1, 40 °C), compared with that of pure water (2406.17 kJ kg-1, 40 °C), because of the disorganization of the hydrogen bonds at the CuS interfaces. Based on this fabric, a heliotropic evaporation model was developed, where seawater slowly flows from high to low in the fabric. Under solar irradiation (1.0 kW m-2), this model exhibits a high-rate evaporation (∼2.27 kg m-2 h-1) and saturated brine production without solid salt crystallization. In particular, under inclined sunlight (angle range: from -90° to +90°), the heliotropic model retains an almost unchanged solar evaporation rate, whereas the floating model shows severe evaporation reduction (83.9%). Therefore, our study provides a strategy for reducing the evaporation enthalpy, maximally utilizing solar energy and continuous salt-free desalination.
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Affiliation(s)
- Zixiao Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Belt and Road Joint Laboratory of Advanced Fiber and Low-Dimension Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Zhan Zhou
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Belt and Road Joint Laboratory of Advanced Fiber and Low-Dimension Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Naiyan Wu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Belt and Road Joint Laboratory of Advanced Fiber and Low-Dimension Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Ruiqi Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Belt and Road Joint Laboratory of Advanced Fiber and Low-Dimension Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Bo Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Belt and Road Joint Laboratory of Advanced Fiber and Low-Dimension Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Hong Jin
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Belt and Road Joint Laboratory of Advanced Fiber and Low-Dimension Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Yumei Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Belt and Road Joint Laboratory of Advanced Fiber and Low-Dimension Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Meifang Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Belt and Road Joint Laboratory of Advanced Fiber and Low-Dimension Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Zhigang Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Belt and Road Joint Laboratory of Advanced Fiber and Low-Dimension Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
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200
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Trinh DX, Pham NN, Chammingkwan P, Taniike T. Preparation and Desalination Performance of PA/UiO-66/PES Composite Membranes. MEMBRANES 2021; 11:628. [PMID: 34436391 PMCID: PMC8399680 DOI: 10.3390/membranes11080628] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 08/09/2021] [Accepted: 08/12/2021] [Indexed: 11/16/2022]
Abstract
UiO-66 nanoparticles are considered highly potential fillers for the application in desalination membranes. In this study, UiO-66 nanoparticles were anchored to PES membrane substrates, which were subsequently subjected to the interfacial polymerization reaction to coat a layer of polyamide (PA) on their surface. For comparison, a blank membrane incorporating no UiO-66 and a reference membrane incorporating ZrO2 (instead of UiO-66) were prepared. All prepared membranes were tested for their desalination performance. The membranes containing UiO-66 were found to outperform the blank and the reference counterparts. The reason for this outperformance is possibly attributed to the hydrophilicity of UiO-66 nanoparticles and the presence of nanochannels in their structure.
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Affiliation(s)
- Dai Xuan Trinh
- Faculty of Chemistry, VNU University of Science, Vietnam National University, 19 Le Thanh Tong, Hoan Kiem, Hanoi 10000, Vietnam; or
| | - Ngo Nghia Pham
- Faculty of Chemistry, VNU University of Science, Vietnam National University, 19 Le Thanh Tong, Hoan Kiem, Hanoi 10000, Vietnam; or
- Institute of Environmental Engineering and Management, University of Witten/Herdecke, Alfred-Herrhausen-Straße 44, 58455 Witten, Germany
| | - Patchanee Chammingkwan
- Graduate School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi 923-1292, Ishikawa, Japan; (P.C.); (T.T.)
| | - Toshiaki Taniike
- Graduate School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi 923-1292, Ishikawa, Japan; (P.C.); (T.T.)
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