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Verma AK, Sharma BB. Experimental and Theoretical Insights into Interfacial Properties of 2D Materials for Selective Water Transport Membranes: A Critical Review. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:7812-7834. [PMID: 38587122 DOI: 10.1021/acs.langmuir.4c00061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Interfacial properties, such as wettability and friction, play critical roles in nanofluidics and desalination. Understanding the interfacial properties of two-dimensional (2D) materials is crucial in these applications due to the close interaction between liquids and the solid surface. The most important interfacial properties of a solid surface include the water contact angle, which quantifies the extent of interactions between the surface and water, and the water slip length, which determines how much faster water can flow on the surface beyond the predictions of continuum fluid mechanics. This Review seeks to elucidate the mechanism that governs the interfacial properties of diverse 2D materials, including transition metal dichalcogenides (e.g., MoS2), graphene, and hexagonal boron nitride (hBN). Our work consolidates existing experimental and computational insights into 2D material synthesis and modeling and explores their interfacial properties for desalination. We investigated the capabilities of density functional theory and molecular dynamics simulations in analyzing the interfacial properties of 2D materials. Specifically, we highlight how MD simulations have revolutionized our understanding of these properties, paving the way for their effective application in desalination. This Review of the synthesis and interfacial properties of 2D materials unlocks opportunities for further advancement and optimization in desalination.
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Affiliation(s)
- Ashutosh Kumar Verma
- School of Chemical Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, United States
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2
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Chu R, Hao S, Shi W, Hu Y. Quantitatively Unveiling the Structure-Activity Relationship of Polyamide Nanofiltration Membranes with Complex Structures. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:13503-13511. [PMID: 37705201 DOI: 10.1021/acs.langmuir.3c01440] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/15/2023]
Abstract
Nanofiltration polyamide (NF PA) membranes are widely used in seawater desalination and wastewater treatment due to their excellent permeability. The structure-activity relationship of PA membranes has attracted extensive attention in decades. In this work, NF PA membranes with planar structure, nodular structure, and peak-valley structure were constructed, and the pure water permeance was calculated by nonequilibrium molecular dynamics simulation to quantitatively investigate the structure-activity relationship between the microstructure and water permeance. Results showed that the peak-valley structure had the highest effective utilization rate of the membrane surface, which had the highest number of water molecules that passed through membranes per unit cross-sectional area (7.09). Furthermore, with the increase of the specific surface area ratio, the water permeance of the NF PA with peak-valley increased at a rate about 2.5 times than that of the planar NF PA. Therefore, some molecular scale insights were supplied about the structure-activity relationship of NF PA membranes, which is helpful for the fabrication of high-performance NF PA membranes.
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Affiliation(s)
- Rongrong Chu
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, PR China
| | - Shuang Hao
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, PR China
| | - Wenxiong Shi
- Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science & Engineering, Tianjin University of Technology, Tianjin 300384, PR China
| | - Yunxia Hu
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, PR China
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3
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Shen Q, Song Q, Mai Z, Lee KR, Yoshioka T, Guan K, Gonzales RR, Matsuyama H. When self-assembly meets interfacial polymerization. SCIENCE ADVANCES 2023; 9:eadf6122. [PMID: 37134177 PMCID: PMC10156122 DOI: 10.1126/sciadv.adf6122] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Interfacial polymerization (IP) and self-assembly are two thermodynamically different processes involving an interface in their systems. When the two systems are incorporated, the interface will exhibit extraordinary characteristics and generate structural and morphological transformation. In this work, an ultrapermeable polyamide (PA) reverse osmosis (RO) membrane with crumpled surface morphology and enlarged free volume was fabricated via IP reaction with the introduction of self-assembled surfactant micellar system. The mechanisms of the formation of crumpled nanostructures were elucidated via multiscale simulations. The electrostatic interactions among m-phenylenediamine (MPD) molecules, surfactant monolayer and micelles, lead to disruption of the monolayer at the interface, which in turn shapes the initial pattern formation of the PA layer. The interfacial instability brought about by these molecular interactions promotes the formation of crumpled PA layer with larger effective surface area, facilitating the enhanced water transport. This work provides valuable insights into the mechanisms of the IP process and is fundamental for exploring high-performance desalination membranes.
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Affiliation(s)
- Qin Shen
- Research Center for Membrane and Film Technology, Kobe University, Kobe 657-8501, Japan
- Department of Chemical Science and Engineering, Kobe University, Kobe 657-8501, Japan
| | - Qiangqiang Song
- Research Center for Membrane and Film Technology, Kobe University, Kobe 657-8501, Japan
- Department of Chemical Science and Engineering, Kobe University, Kobe 657-8501, Japan
| | - Zhaohuan Mai
- Research Center for Membrane and Film Technology, Kobe University, Kobe 657-8501, Japan
| | - Kueir-Rarn Lee
- R&D Center for Membrane Technology, Department of Chemical Engineering, Chung Yuan Christian University, Chung Li 32023, Taiwan
| | - Tomohisa Yoshioka
- Research Center for Membrane and Film Technology, Kobe University, Kobe 657-8501, Japan
| | - Kecheng Guan
- Research Center for Membrane and Film Technology, Kobe University, Kobe 657-8501, Japan
| | - Ralph Rolly Gonzales
- Research Center for Membrane and Film Technology, Kobe University, Kobe 657-8501, Japan
| | - Hideto Matsuyama
- Research Center for Membrane and Film Technology, Kobe University, Kobe 657-8501, Japan
- Department of Chemical Science and Engineering, Kobe University, Kobe 657-8501, Japan
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4
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He J, Arbaugh T, Nguyen D, Xian W, Hoek E, McCutcheon JR, Li Y. Molecular mechanisms of thickness-dependent water desalination in polyamide reverse-osmosis membranes. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2023.121498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
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5
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Heiranian M, DuChanois RM, Ritt CL, Violet C, Elimelech M. Molecular Simulations to Elucidate Transport Phenomena in Polymeric Membranes. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:3313-3323. [PMID: 35235312 DOI: 10.1021/acs.est.2c00440] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Despite decades of dominance in separation technology, progress in the design and development of high-performance polymer-based membranes has been incremental. Recent advances in materials science and chemical synthesis provide opportunities for molecular-level design of next-generation membrane materials. Such designs necessitate a fundamental understanding of transport and separation mechanisms at the molecular scale. Molecular simulations are important tools that could lead to the development of fundamental structure-property-performance relationships for advancing membrane design. In this Perspective, we assess the application and capability of molecular simulations to understand the mechanisms of ion and water transport across polymeric membranes. Additionally, we discuss the reliability of molecular models in mimicking the structure and chemistry of nanochannels and transport pathways in polymeric membranes. We conclude by providing research directions for resolving key knowledge gaps related to transport phenomena in polymeric membranes and for the construction of structure-property-performance relationships for the design of next-generation membranes.
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Affiliation(s)
- Mohammad Heiranian
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520-8286, United States
| | - Ryan M DuChanois
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520-8286, United States
| | - Cody L Ritt
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520-8286, United States
| | - Camille Violet
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520-8286, United States
| | - Menachem Elimelech
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520-8286, United States
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7
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Tiwari S, Gogoi A, Anki Reddy K. Effect of an ionic environment on membrane fouling: a molecular dynamics study. Phys Chem Chem Phys 2021; 23:5001-5011. [PMID: 33624656 DOI: 10.1039/d0cp05268j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The effect of the ionic environment on membrane fouling was investigated for polyamide (PA) and graphene oxide (GO) membranes using equilibrium molecular dynamics (MD) simulations. For each of these membranes, bovine serum albumin (BSA) was considered as the model foulant. The effect of the foulant on the membranes is investigated at seawater concentration and also in a normal aqueous environment. We investigated the translational and rotational motion of the protein relative to the membrane, interaction energy between the protein and the membrane surface, structural changes in the protein, and ion distribution around the protein and the membrane surface for all the systems. We found that the effects of ions were very different on both the membranes. Specifically, with an increase in ionic strength, the repulsion between the protein and membrane was observed in the case of GO, while for PA, no significant changes were observed for the same. Also, the ion distribution around the protein and the membrane surface were found to be different. In particular, for GO, there were more number of chloride ions around the protein and the membrane than that of sodium ions, which was probably the reason for the repulsion in the case of GO. However, in the case of PA, the membrane surface did not exhibit any affinity towards a specific ion, and the protein in the case of PA was surrounded by more number of sodium ions than chloride ions.
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Affiliation(s)
- Shivam Tiwari
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Assam 781039, India.
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Culp TE, Khara B, Brickey KP, Geitner M, Zimudzi TJ, Wilbur JD, Jons SD, Roy A, Paul M, Ganapathysubramanian B, Zydney AL, Kumar M, Gomez ED. Nanoscale control of internal inhomogeneity enhances water transport in desalination membranes. Science 2021; 371:72-75. [DOI: 10.1126/science.abb8518] [Citation(s) in RCA: 91] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 11/03/2020] [Indexed: 01/03/2023]
Affiliation(s)
- Tyler E. Culp
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Biswajit Khara
- Department of Mechanical Engineering, Iowa State University, Ames, IA 50011, USA
| | - Kaitlyn P. Brickey
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Michael Geitner
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Tawanda J. Zimudzi
- Materials Research Institute, The Pennsylvania State University, University Park, PA 16802, USA
| | | | | | - Abhishek Roy
- The Dow Chemical Company, Freeport, TX 77541, USA
| | - Mou Paul
- The Dow Chemical Company, Lake Jackson, TX 77566, USA
| | | | - Andrew L. Zydney
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Manish Kumar
- Department of Civil, Architectural and Environmental Engineering, University of Texas, Austin, TX 78712, USA
| | - Enrique D. Gomez
- Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
- Materials Research Institute, The Pennsylvania State University, University Park, PA 16802, USA
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA 16802, USA
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9
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Zhang W, Qin Y, Shi W, Hu Y. Unveiling the Molecular Mechanisms of Thickness-Dependent Water Dynamics in an Ultrathin Free-Standing Polyamide Membrane. J Phys Chem B 2020; 124:11939-11948. [PMID: 33332121 DOI: 10.1021/acs.jpcb.0c07263] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Aromatic polyamide (PA) membranes fabricated from interfacial polymerization are widely used for desalination and water treatment. The fabrication of the high-flux PA membrane requires a fundamental understanding of the molecular mechanisms of water dynamics in the PA, which is still obscure due to the limited experimental methods. Herein, molecular dynamics (MD) simulations were employed to establish an atomic model of ultrathin free-standing PA membranes with various thickness and to explore the thickness-dependent dynamics of water molecules in the PA membrane. Simulation results illustrate that the simulated PA membrane has an average pore radius of 3 Å similar to the free volume size of the experimental PA membrane measured by PALS. The PA could be identified as the swelling layer (SL) and the confined layer (CL) based on their water diffusion rates. The diffusivity of water in the confined layer of PA membrane was much lower than that in the swelling layer and thus determined the water flux of the PA membrane. The water diffusivity in the sub-8 nm PA membrane is greatly enhanced due to a very thin confined layer thickness, illustrating the mechanism of the experimentally fabricated sub-8 nm PA membrane having the dramatically enhanced water permeability. Furthermore, results show that water molecules tend to transport rapidly in the free space inside the PA membrane. Our results provide some insights into the thickness-dependent water dynamics in the PA on a molecular level and may help to design the next generation of high-flux PA membranes.
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Affiliation(s)
- Wei Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, P. R. China.,School of Materials Science and Engineering, Tiangong University, Tianjin 300387, P. R. China
| | - Yiwen Qin
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, P. R. China.,School of Materials Science and Engineering, Tiangong University, Tianjin 300387, P. R. China
| | - Wenxiong Shi
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, P. R. China.,School of Materials Science and Engineering, Tiangong University, Tianjin 300387, P. R. China
| | - Yunxia Hu
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, P. R. China.,School of Materials Science and Engineering, Tiangong University, Tianjin 300387, P. R. China
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10
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Cruz-Silva R, Izu K, Maeda J, Saito S, Morelos-Gomez A, Aguilar C, Takizawa Y, Yamanaka A, Tejiima S, Fujisawa K, Takeuchi K, Hayashi T, Noguchi T, Isogai A, Endo M. Nanocomposite desalination membranes made of aromatic polyamide with cellulose nanofibers: synthesis, performance, and water diffusion study. NANOSCALE 2020; 12:19628-19637. [PMID: 32627791 DOI: 10.1039/d0nr02915g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Reverse osmosis membranes of aromatic polyamide (PA) reinforced with a crystalline cellulose nanofiber (CNF) were synthesized and their desalination performance was studied. Comparison with plain PA membranes shows that the addition of CNF reduced the matrix mobility resulting in a molecularly stiffer membrane because of the attractive forces between the surface of the CNFs and the PA matrix. Fourier transform-infrared spectroscopy and X-ray photoelectron spectroscopy results showed complex formation between the carboxy groups of the CNF surface and the m- phenylenediamine monomer in the CNF-PA composite. Molecular dynamics simulations showed that the CNF-PA had higher hydrophilicity which was key for the higher water permeability of the synthesized nanocomposite membrane. The CNF-PA reverse osmosis nanocomposite membranes also showed enhanced antifouling performance and improved chlorine resistance. Therefore, CNF shows great potential as a nanoreinforcing material towards the preparation of nanocomposite aromatic PA membranes with longer operation lifetime due to its antifouling and chlorine resistance properties.
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Affiliation(s)
- Rodolfo Cruz-Silva
- Research Initiative for Supra-Materials, Faculty of Engineering, Shinshu University, 4-17-1 Wakasato, Nagano-city 380-8553, Japan.
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11
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Novel thin-film reverse osmosis membrane with MXene Ti3C2T embedded in polyamide to enhance the water flux, anti-fouling and chlorine resistance for water desalination. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118036] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Kibler R, Mohrhardt B, Zhang M, Breitner L, Howe KJ, Minakata D. Group Contribution Method to Predict the Mass Transfer Coefficients of Organics through Various RO Membranes. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:5167-5177. [PMID: 32208649 DOI: 10.1021/acs.est.9b06170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Reverse osmosis (RO) is a membrane technology that separates dissolved species from water. RO has been applied for the removal of chemical contaminants from water for potable reuse applications. The presence of a wide variety of influent chemical contaminants and the insufficient rejection of low-molecular-weight neutral organics by RO calls for the need to develop a model that predicts the rejection of various organics. In this study, we develop a group contribution method (GCM) to predict the mass transfer coefficients by fragmenting the structure of low-molecular-weight neutral organics into small parts that interact with the RO membrane. Overall, 54 organics including 26 halogenated and oxygenated alkanes, 8 alkenes, and 20 alkyl and halobenzenes were used to determine 39 parameters to calibrate for 6 different RO membranes, including 4 brackish water and 2 seawater membranes. Through six membranes, approximately 80% of calculated rejection was within an error goal (i.e., ±5%) from the experimental observation. To extend the GCM for a reference RO membrane, ESPA2-LD, 14 additional organics were included from the literature to calibrate nitrogen-containing functional groups of nitrosamine, nitriles, and amide compounds. Overall, 49 organics (72% of 68 compounds) from calibration and 7 compounds (87.5% of 8 compounds) from prediction were within the error goal.
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Affiliation(s)
- Ryan Kibler
- Department of Civil and Environmental Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, Michigan 49931, United States
| | - Benjamin Mohrhardt
- Department of Civil and Environmental Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, Michigan 49931, United States
| | - Muxue Zhang
- Department of Civil and Environmental Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, Michigan 49931, United States
| | - Lauren Breitner
- Trussell Technologies, Inc., San Diego, California 92075, United States
| | - Kerry J Howe
- Department of Civil, Construction and Environmental Engineering, University of New Mexico, MSC01 1070, Albuquerque, New Mexico 87131-1070, United States
| | - Daisuke Minakata
- Department of Civil and Environmental Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, Michigan 49931, United States
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Gogoi A, Anki Reddy K, Mondal PK. Influence of the presence of cations on the water and salt dynamics inside layered graphene oxide (GO) membranes. NANOSCALE 2020; 12:7273-7283. [PMID: 32196024 DOI: 10.1039/c9nr09288a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Although over the past few years, graphene oxide (GO) has emerged as a promising membrane material, the applicability of layered GO membranes in water purification/seawater desalination is still a challenging issue because of the undesirable swelling of GO laminates in the aqueous environment. One of the ways to tune the interlayer spacing and to arrest the undesirable swelling of layered GO membranes in the aqueous environment is to intercalate the interlayer spacing of the GO laminates with cations. Although the cation intercalation imparts stabilization to GO laminates in the aqueous environment, their effect on the performance of the membrane is yet to be addressed in detail. In the present study we have investigated the effect of cation intercalation on the performance of layered GO membranes using molecular dynamics simulation. For the same interlayer spacing, the cation intercalated layered GO membranes have a higher water flux as compared to the corresponding pristine layered GO membranes. In the presence of the cations, the water molecules inside the interlayer gallery get more compactly packed. The presence of the cations also increases the stability of the hydrogen bond network among the water molecules inside the membrane. This can be attributed to slow water reorientation dynamics inside the interlayer gallery in the presence of the cations. The synergistic effect of all these changes is that the water permeability through the cation intercalated layered GO membranes is higher as compared to that through the corresponding pristine layered GO membranes. On the other hand, the intercalation of the cations (K+, Mg2+) leads to higher rejection of Na+ ions whereas the rejection of Cl- ions slightly decreases.
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Affiliation(s)
- Abhijit Gogoi
- Department of Mechanical Engineering, Indian Institute of Technology Guwahati, Assam, India
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14
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Freger V. Ion partitioning and permeation in charged low-T* membranes. Adv Colloid Interface Sci 2020; 277:102107. [PMID: 32000110 DOI: 10.1016/j.cis.2020.102107] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 01/15/2020] [Accepted: 01/16/2020] [Indexed: 11/25/2022]
Abstract
Understanding ion transport in membrane materials is key to engineering and development of desalination and water purification technologies as well as electro-membrane applications. To date, modeling of ion transport has mainly relied on mean-field approaches, originally intended for weak inter-ionic interactions, i.e., high reduced temperature T*. This condition is violated in many membranes, which could explain disagreement between predicted trends and experiments. The paper highlights observed discrepancies and develops a new approach based on the concept of ion association, more adequate in the low-T⁎ limit. The new model addresses ion binding and mobility consistently within the same physical picture, applied to different types of single and mixed salts. The resulting relations show a significantly weaker connection between ion partitioning and permeability than the standard ones. Estimates using primitive model (PM) of ions in a homogeneous dielectric suggest that non-PM mechanisms, originating from the molecular structure of the ion-solvating environment, might enhance ion association in membranes. PM analysis also predicts that ion solvation and association must be rigidly related, yet non-PM effects may decouple these phenomena and allow a crossover to non-trivial regimes consistent with experiments and simulations. Despite the crude nature of the presented approach and some questions remaining open, it appears to explain most available experimental data and presents a step towards predictive modeling of ion-selective membrane separations in water-, environment- and energy-related applications.
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Gu L, Chen Q, Li X, Meng C, Liu H. Enantioseparation processes and mechanisms in functionalized graphene membranes: Facilitated or retarded transport? Chirality 2020; 32:842-853. [PMID: 32073697 DOI: 10.1002/chir.23190] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 02/04/2020] [Accepted: 02/05/2020] [Indexed: 12/24/2022]
Abstract
Up to date, functionalized graphene-based membranes have exhibited a promising potential in the enantioseparation. However, since precisely controlling the interlayer distance of two-dimensional materials is a great challenge in practical experiments, the transport mechanism of chiral guests in such membranes, together with various critical parameters that play a controlling role in the transport behaviors of the preferentially binding enantiomer in narrow channels, remains to be explored. The molecular dynamics (MD) simulation, especially using the steered MD (SMD) method, might be an alternative way to investigate the enantioseparation processes and mechanisms of layered membranes with different interlayer distances. In this work, D-alanine modified graphene sheets with different interlayer distances were built as membrane models, whereas D- and L-phenylalanine were selected as chiral probes. The effect of the interlayer distance and the applied external force on the enantioseparation performance was examined. Results show that such two parameters exert a significant influence on the enantioseparation performance: (a) Increasing the interlayer distance would result in a conversion from the retarded to the facilitated mechanism at a proper external force (medium); (b) both the large and small driving forces would only lead to the appearance of the retarded transport for the preferential enantiomer, unlike the moderate force; (c) the interaction energy of L-phenylalanine with D-isomer selector decreases with the rising interlayer distances studied in this work, regardless of what the external force is. Our findings can provide guidance on the practical applications in the membrane-based chiral separation.
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Affiliation(s)
- Liangning Gu
- State Key Laboratory of Chemical Engineering and School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Qibin Chen
- State Key Laboratory of Chemical Engineering and School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Xiaoxiao Li
- State Key Laboratory of Chemical Engineering and School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Chenchen Meng
- State Key Laboratory of Chemical Engineering and School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Honglai Liu
- State Key Laboratory of Chemical Engineering and School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, China
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17
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Bahamon D, Vega LF. Molecular simulations of phenol and ibuprofen removal from water using multilayered graphene oxide membranes. Mol Phys 2019. [DOI: 10.1080/00268976.2019.1662129] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- D. Bahamon
- Chemical Engineering Department, Khalifa University, Abu Dhabi, UAE
- Research and Innovation Center on CO2 and H2 (RICH), Catalysis and Separation Center (CeCaS), Khalifa University, Abu Dhabi, UAE
| | - L. F. Vega
- Chemical Engineering Department, Khalifa University, Abu Dhabi, UAE
- Research and Innovation Center on CO2 and H2 (RICH), Catalysis and Separation Center (CeCaS), Khalifa University, Abu Dhabi, UAE
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18
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Li K, Li S, Huang W, Yu C, Zhou Y. MembrFactory: A Force Field and composition Double Independent Universal Tool for Constructing Polyamide Reverse Osmosis Membranes. J Comput Chem 2019; 40:2432-2438. [DOI: 10.1002/jcc.26015] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 05/31/2019] [Accepted: 06/03/2019] [Indexed: 11/07/2022]
Affiliation(s)
- Ke Li
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road, Shanghai, 200240 China
| | - Shanlong Li
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road, Shanghai, 200240 China
| | - Wei Huang
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road, Shanghai, 200240 China
| | - Chunyang Yu
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road, Shanghai, 200240 China
| | - Yongfeng Zhou
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University 800 Dongchuan Road, Shanghai, 200240 China
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Cui F, Chen W, Kong X, Liu L, Shi C, Li Y. Anomalous Dynamics of Water in Polyamide Matrix. J Phys Chem B 2019; 123:3086-3095. [PMID: 30879304 DOI: 10.1021/acs.jpcb.9b01491] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Water in polymer matrixes is likely to show anomalous dynamics, a problem that has not been well understood yet. Here, we performed atomistic molecular dynamics simulations to study the water dynamics in a polyamide (PA) matrix, the bulk phase of well-known reverse osmosis membranes. For time-dependent ensemble average, water molecules experienced ballistic diffusion at a shorter time scale, followed by a crossover from subdiffusion to Brownian diffusion at a time scale ∼10 ns, and non-Gaussian diffusion, an indication of anomalous dynamics, sticks on even in the Brownian diffusion region. The anomalous dynamics mainly originates from two distinct motions including small-step continuous diffusion and jumping diffusion. The jumping motion has a mean length of 3.08 ± 0.31 Å and characteristic relaxation time of 0.218 ± 0.040 ns, which dominates the water diffusion in a fully hydrated PA matrix. It comprised low- and high-frequency jumps; the former is almost unchanged, and the latter remarkably increases with the increase of the hydration level. Surrounding neighbors of water strongly affect the jumping frequency, which exponentially or linearly decays with the increase in the number of atoms from the PA matrix. Although the PA matrix is flexible, associated with the water dynamics, the translocation of water is mainly through either tracing the position of neighboring water or jumping into the adjacent accommodation space.
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Affiliation(s)
- Fengchao Cui
- Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials , Changchun Institute of Applied Chemistry (CIAC), Chinese Academy of Sciences , Changchun 130022 , P. R. China
| | - Wenduo Chen
- Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials , Changchun Institute of Applied Chemistry (CIAC), Chinese Academy of Sciences , Changchun 130022 , P. R. China.,School of Materials , Sun Yat-Sen University , 135 Xingang West , Guangzhou 510275 , P. R. China
| | - Xiangxin Kong
- Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials , Changchun Institute of Applied Chemistry (CIAC), Chinese Academy of Sciences , Changchun 130022 , P. R. China
| | - Lunyang Liu
- Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials , Changchun Institute of Applied Chemistry (CIAC), Chinese Academy of Sciences , Changchun 130022 , P. R. China
| | - Ce Shi
- Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials , Changchun Institute of Applied Chemistry (CIAC), Chinese Academy of Sciences , Changchun 130022 , P. R. China
| | - Yunqi Li
- Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials , Changchun Institute of Applied Chemistry (CIAC), Chinese Academy of Sciences , Changchun 130022 , P. R. China
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20
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Li K, Li S, Liu L, Huang W, Wang Y, Yu C, Zhou Y. Molecular dynamics simulation studies of the structure and antifouling performance of a gradient polyamide membrane. Phys Chem Chem Phys 2019; 21:19995-20002. [DOI: 10.1039/c9cp03798e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The structure and the antifouling performance of the first gradient polyamide layer model are systematically disclosed using molecular dynamics simulations.
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Affiliation(s)
- Ke Li
- School of Chemistry & Chemical Engineering
- Shanghai Key Laboratory of Electrical Insulation and Thermal Aging
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai
| | - Shanlong Li
- School of Chemistry & Chemical Engineering
- Shanghai Key Laboratory of Electrical Insulation and Thermal Aging
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai
| | - Lifen Liu
- Center for Membrane and Water Science & Technology
- Ocean College, Zhejiang University of Technology
- Hangzhou
- China
| | - Wei Huang
- School of Chemistry & Chemical Engineering
- Shanghai Key Laboratory of Electrical Insulation and Thermal Aging
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai
| | - Yuling Wang
- School of Chemistry & Chemical Engineering
- Shanghai Key Laboratory of Electrical Insulation and Thermal Aging
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai
| | - Chunyang Yu
- School of Chemistry & Chemical Engineering
- Shanghai Key Laboratory of Electrical Insulation and Thermal Aging
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai
| | - Yongfeng Zhou
- School of Chemistry & Chemical Engineering
- Shanghai Key Laboratory of Electrical Insulation and Thermal Aging
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai
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21
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Yoshioka T, Kotaka K, Nakagawa K, Shintani T, Wu HC, Matsuyama H, Fujimura Y, Kawakatsu T. Molecular Dynamics Simulation Study of Polyamide Membrane Structures and RO/FO Water Permeation Properties. MEMBRANES 2018; 8:membranes8040127. [PMID: 30563257 PMCID: PMC6316748 DOI: 10.3390/membranes8040127] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 11/17/2018] [Accepted: 11/26/2018] [Indexed: 11/16/2022]
Abstract
Polyamide (PA) membranes possess properties that allow for selective water permeation and salt rejection, and these are widely used for reverse osmotic (RO) desalination of sea water to produce drinking water. In order to design high-performance RO membranes with high levels of water permeability and salt rejection, an understanding of microscopic PA membrane structures is indispensable, and this includes water transport and ion rejection mechanisms on a molecular scale. In this study, two types of virtual PA membranes with different structures and densities were constructed on a computer, and water molecular transport properties through PA membranes were examined on a molecular level via direct reverse/forward osmosis (RO/FO) filtration molecular dynamics (MD) simulations. A quasi-non-equilibrium MD simulation technique that uses applied (RO mode) or osmotic (FO mode) pressure differences of several MPa was conducted to estimate water permeability through PA membranes. A simple NVT (Number, Volume, and Temperature constant ensemble)-RO MD simulation method was presented and verified. The simulations of RO and FO water permeability for a dense PA membrane model without a support layer agreed with the experimental value in the RO mode. This PA membrane completely rejected Na+ and Cl− ions during a simulation time of several nano-seconds. The naturally dense PA structure showed excellent ion rejection. The effect that the void size of PA structure exerted on water permeability was also examined.
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Affiliation(s)
- Tomohisa Yoshioka
- Center for Membrane and Film Technology, Graduate School of Science, Technology, and Innovation, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan.
| | - Keisuke Kotaka
- Center for Membrane and Film Technology, Graduate School of Science, Technology, and Innovation, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan.
| | - Keizo Nakagawa
- Center for Membrane and Film Technology, Graduate School of Science, Technology, and Innovation, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan.
| | - Takuji Shintani
- Center for Membrane and Film Technology, Graduate School of Science, Technology, and Innovation, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan.
| | - Hao-Chen Wu
- Center for Membrane and Film Technology, Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan.
| | - Hideto Matsuyama
- Center for Membrane and Film Technology, Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan.
| | - Yu Fujimura
- Research and Development Division, Kurita Water Industries Ltd., 1-1 Kawada, Nogi, Shimotsuga, Tochigi 329-0105, Japan.
| | - Takahiro Kawakatsu
- Research and Development Division, Kurita Water Industries Ltd., 1-1 Kawada, Nogi, Shimotsuga, Tochigi 329-0105, Japan.
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23
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Zhang N, Chen S, Yang B, Huo J, Zhang X, Bao J, Ruan X, He G. Effect of Hydrogen-Bonding Interaction on the Arrangement and Dynamics of Water Confined in a Polyamide Membrane: A Molecular Dynamics Simulation. J Phys Chem B 2018; 122:4719-4728. [DOI: 10.1021/acs.jpcb.7b12790] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ning Zhang
- State Key Laboratory of Fine Chemicals, School of Petroleum and Chemical Engineering, Dalian University of Technology, Panjin 124221, China
| | - Shaomin Chen
- State Key Laboratory of Fine Chemicals, School of Petroleum and Chemical Engineering, Dalian University of Technology, Panjin 124221, China
| | - Boyun Yang
- State Key Laboratory of Fine Chemicals, School of Petroleum and Chemical Engineering, Dalian University of Technology, Panjin 124221, China
| | - Jun Huo
- State Key Laboratory of Fine Chemicals, School of Petroleum and Chemical Engineering, Dalian University of Technology, Panjin 124221, China
| | - Xiaopeng Zhang
- State Key Laboratory of Fine Chemicals, School of Petroleum and Chemical Engineering, Dalian University of Technology, Panjin 124221, China
| | - Junjiang Bao
- State Key Laboratory of Fine Chemicals, School of Petroleum and Chemical Engineering, Dalian University of Technology, Panjin 124221, China
| | - Xuehua Ruan
- State Key Laboratory of Fine Chemicals, School of Petroleum and Chemical Engineering, Dalian University of Technology, Panjin 124221, China
| | - Gaohong He
- State Key Laboratory of Fine Chemicals, School of Petroleum and Chemical Engineering, Dalian University of Technology, Panjin 124221, China
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24
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Freger V. Selectivity and polarization in water channel membranes: lessons learned from polymeric membranes and CNTs. Faraday Discuss 2018; 209:371-388. [DOI: 10.1039/c8fd00054a] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The aspects of ion exclusion and concentration polarization are highlighted as critical for achieving high selectivity in an artificial water channel.
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Affiliation(s)
- Viatcheslav Freger
- Technion – Israel Institute of Technology
- Wolfson Department of Chemical Engineering
- Haifa
- Israel
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25
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Li K, Liu L, Wu H, Li S, Yu C, Zhou Y, Huang W, Yan D. Understanding the temperature effect on transport dynamics and structures in polyamide reverse osmosis system via molecular dynamics simulations. Phys Chem Chem Phys 2018; 20:29996-30005. [DOI: 10.1039/c8cp05825c] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Molecular simulations could disclose the transport dynamics, membrane structures and temperature effect on reverse osmosis process.
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Affiliation(s)
- Ke Li
- School of Chemistry & Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University
- Shanghai
- China
| | - Lifen Liu
- Center for Membrane and Water Science & Technology, Ocean College, Zhejiang University of Technology
- Hangzhou
- China
| | - Hao Wu
- Center for Membrane and Water Science & Technology, Ocean College, Zhejiang University of Technology
- Hangzhou
- China
| | - Shanlong Li
- School of Chemistry & Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University
- Shanghai
- China
| | - Chunyang Yu
- School of Chemistry & Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University
- Shanghai
- China
| | - Yongfeng Zhou
- School of Chemistry & Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University
- Shanghai
- China
| | - Wei Huang
- School of Chemistry & Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University
- Shanghai
- China
| | - Deyue Yan
- School of Chemistry & Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University
- Shanghai
- China
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26
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Sakamoto T, Ogawa T, Nada H, Nakatsuji K, Mitani M, Soberats B, Kawata K, Yoshio M, Tomioka H, Sasaki T, Kimura M, Henmi M, Kato T. Development of Nanostructured Water Treatment Membranes Based on Thermotropic Liquid Crystals: Molecular Design of Sub-Nanoporous Materials. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1700405. [PMID: 29375969 PMCID: PMC5770667 DOI: 10.1002/advs.201700405] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 11/03/2017] [Indexed: 05/19/2023]
Abstract
Supply of safe fresh water is currently one of the most important global issues. Membranes technologies are essential to treat water efficiently with low costs and energy consumption. Here, the development of self-organized nanostructured water treatment membranes based on ionic liquid crystals composed of ammonium, imidazolium, and pyridinium moieties is reported. Membranes with preserved 1D or 3D self-organized sub-nanopores are obtained by photopolymerization of ionic columnar or bicontinuous cubic liquid crystals. These membranes show salt rejection ability, ion selectivity, and excellent water permeability. The relationships between the structures and the transport properties of water molecules and ionic solutes in the sub-nanopores in the membranes are examined by molecular dynamics simulations. The results suggest that the volume of vacant space in the nanochannel greatly affects the water and ion permeability.
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Affiliation(s)
| | | | - Hiroki Nada
- National Institute of Advanced Industrial Science and Technology (AIST)Onogawa 16‐1TsukubaIbaraki305‐8569Japan
| | | | | | | | - Ken Kawata
- The University of TokyoHongoBunkyo‐ku113‐8656Japan
| | | | | | - Takao Sasaki
- Toray Industries, Inc.SonoyamaOtsuShiga520‐0842Japan
| | | | | | - Takashi Kato
- The University of TokyoHongoBunkyo‐ku113‐8656Japan
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27
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Hu K, Fiedler T, Blanco L, Geissen SU, Zander S, Prieto D, Blanco A, Negro C, Swinnen N. Model-based performance and energy analyses of reverse osmosis to reuse wastewater in a PVC production site. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2017; 52:1218-1225. [PMID: 28910582 DOI: 10.1080/10934529.2017.1356194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A pilot-scale reverse osmosis (RO) followed behind a membrane bioreactor (MBR) was developed for the desalination to reuse wastewater in a PVC production site. The solution-diffusion-film model (SDFM) based on the solution-diffusion model (SDM) and the film theory was proposed to describe rejections of electrolyte mixtures in the MBR effluent which consists of dominant ions (Na+ and Cl-) and several trace ions (Ca2+, Mg2+, K+ and SO42-). The universal global optimisation method was used to estimate the ion permeability coefficients (B) and mass transfer coefficients (K) in SDFM. Then, the membrane performance was evaluated based on the estimated parameters which demonstrated that the theoretical simulations were in line with the experimental results for the dominant ions. Moreover, an energy analysis model with the consideration of limitation imposed by the thermodynamic restriction was proposed to analyse the specific energy consumption of the pilot-scale RO system in various scenarios.
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Affiliation(s)
- Kang Hu
- a Environmental Process Engineering , Technische Universitaet Berlin , Berlin , Germany
| | - Thorsten Fiedler
- a Environmental Process Engineering , Technische Universitaet Berlin , Berlin , Germany
| | - Laura Blanco
- b Departamento de Ingeniería Química, Facultad de Ciencias Químicas , Universidad Complutense de Madrid , Madrid , Spain
| | - Sven-Uwe Geissen
- a Environmental Process Engineering , Technische Universitaet Berlin , Berlin , Germany
| | - Simon Zander
- a Environmental Process Engineering , Technische Universitaet Berlin , Berlin , Germany
| | | | - Angeles Blanco
- b Departamento de Ingeniería Química, Facultad de Ciencias Químicas , Universidad Complutense de Madrid , Madrid , Spain
| | - Carlos Negro
- b Departamento de Ingeniería Química, Facultad de Ciencias Químicas , Universidad Complutense de Madrid , Madrid , Spain
| | - Nathalie Swinnen
- d Solvay, Research and Innovation, Environment Lab , Brussels , Belgium
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28
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Karzar Jeddi M, Romero-Vargas Castrillón S. Dynamics of Water Monolayers Confined by Chemically Heterogeneous Surfaces: Observation of Surface-Induced Anisotropic Diffusion. J Phys Chem B 2017; 121:9666-9675. [PMID: 28938070 DOI: 10.1021/acs.jpcb.7b07454] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Water present in confining geometries plays key roles in many systems of scientific and technological relevance. Prominent examples are living cells and nanofluidic devices. Despite its importance, a complete understanding of the dynamics of water in nanoscale confinement remains elusive. In this work, we use molecular dynamics (MD) simulation to investigate the diffusive dynamics of water monolayers confined in chemically heterogeneous silica slit pores. The effect of chemical heterogeneity is systematically investigated through the fraction fSiOH of randomly distributed surface sites that possess hydroxyl functional groups. Partial hydroxylation results in heterogeneous surfaces comprising nanoscale hydrophobic and hydrophilic regions. We find that the in-plane diffusivity of water increases monotonically with fSiOH; at low surface hydroxylation (fSiOH ≤ 50%), slow water dynamics arise due to the formation of icelike structures in the hydrophobic regions, while at fSiOH ≥ 75%, surface-water H-bonds in the hydrophilic regions result in faster dynamics. We show that surface patterning with ordered hydrophobic and hydrophilic "stripes" can be used to induce one-dimensional diffusion, with water diffusing through the slit pore preferentially along the direction of the hydrophilic surface patterns.
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Affiliation(s)
- Mehdi Karzar Jeddi
- Department of Civil, Environmental, and Geo- Engineering, University of Minnesota-Twin Cities , Minneapolis, Minnesota 55455, United States
| | - Santiago Romero-Vargas Castrillón
- Department of Civil, Environmental, and Geo- Engineering, University of Minnesota-Twin Cities , Minneapolis, Minnesota 55455, United States
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29
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Wang L, Boutilier MSH, Kidambi PR, Jang D, Hadjiconstantinou NG, Karnik R. Fundamental transport mechanisms, fabrication and potential applications of nanoporous atomically thin membranes. NATURE NANOTECHNOLOGY 2017; 12:509-522. [PMID: 28584292 DOI: 10.1038/nnano.2017.72] [Citation(s) in RCA: 370] [Impact Index Per Article: 52.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Accepted: 03/20/2017] [Indexed: 05/22/2023]
Abstract
Graphene and other two-dimensional materials offer a new approach to controlling mass transport at the nanoscale. These materials can sustain nanoscale pores in their rigid lattices and due to their minimum possible material thickness, high mechanical strength and chemical robustness, they could be used to address persistent challenges in membrane separations. Here we discuss theoretical and experimental developments in the emerging field of nanoporous atomically thin membranes, focusing on the fundamental mechanisms of gas- and liquid-phase transport, membrane fabrication techniques and advances towards practical application. We highlight potential functional characteristics of the membranes and discuss applications where they are expected to offer advantages. Finally, we outline the major scientific questions and technological challenges that need to be addressed to bridge the gap from theoretical simulations and proof-of-concept experiments to real-world applications.
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Affiliation(s)
- Luda Wang
- Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA
| | - Michael S H Boutilier
- Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA
| | - Piran R Kidambi
- Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA
| | - Doojoon Jang
- Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA
| | - Nicolas G Hadjiconstantinou
- Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA
| | - Rohit Karnik
- Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA
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30
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Suzuki Y, Nagaoka M. A transformation theory of stochastic evolution in Red Moon methodology to time evolution of chemical reaction process in the full atomistic system. J Chem Phys 2017; 146:204102. [DOI: 10.1063/1.4983396] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Yuichi Suzuki
- Graduate School of Information Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
| | - Masataka Nagaoka
- Graduate School of Information Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
- Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University Katsura, Kyoto 615-8520, Japan
- Core Research for Evolutionary Science and Technology, Japan Science and Technology Agency, Honmachi, Kawaguchi 332-0012, Japan
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31
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Multiscale molecular simulations of the formation and structure of polyamide membranes created by interfacial polymerization. J Memb Sci 2017. [DOI: 10.1016/j.memsci.2016.11.024] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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32
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Song Y, Xu F, Wei M, Wang Y. Water Flow inside Polamide Reverse Osmosis Membranes: A Non-Equilibrium Molecular Dynamics Study. J Phys Chem B 2017; 121:1715-1722. [DOI: 10.1021/acs.jpcb.6b11536] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yang Song
- State Key Laboratory of Materials-Oriented
Chemical Engineering, Jiangsu National Synergetic Innovation Center
for Advanced Materials, and College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, Jiangsu, P. R. China
| | - Fang Xu
- State Key Laboratory of Materials-Oriented
Chemical Engineering, Jiangsu National Synergetic Innovation Center
for Advanced Materials, and College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, Jiangsu, P. R. China
| | - Mingjie Wei
- State Key Laboratory of Materials-Oriented
Chemical Engineering, Jiangsu National Synergetic Innovation Center
for Advanced Materials, and College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, Jiangsu, P. R. China
| | - Yong Wang
- State Key Laboratory of Materials-Oriented
Chemical Engineering, Jiangsu National Synergetic Innovation Center
for Advanced Materials, and College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, Jiangsu, P. R. China
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33
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Ridgway HF, Orbell J, Gray S. Molecular simulations of polyamide membrane materials used in desalination and water reuse applications: Recent developments and future prospects. J Memb Sci 2017. [DOI: 10.1016/j.memsci.2016.11.061] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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34
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Wei T, Zhang L, Zhao H, Ma H, Sajib MSJ, Jiang H, Murad S. Aromatic Polyamide Reverse-Osmosis Membrane: An Atomistic Molecular Dynamics Simulation. J Phys Chem B 2016; 120:10311-10318. [PMID: 27603124 DOI: 10.1021/acs.jpcb.6b06560] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Polyamide (PA) membrane-based reverse-osmosis (RO) serves as one of the most important techniques for water desalination and purification. Fundamental understanding of PA RO membranes at the atomistic level is critical to enhance their separation capabilities, leading to significant societal and commercial benefits. In this paper, a fully atomistic molecular dynamics simulation was performed to investigate PA membrane. Our simulated cross-linked membrane exhibits structural properties similar to those reported in experiments. Our results also reveal the presence of small local two-layer slip structures in PA membrane with 70% cross-linking, primarily due to short-range anisotropic interactions among aromatic benzene rings. Inside the inhomogeneous polymeric structure of the membrane, water molecules show heterogeneous diffusivities and converge adjacent to polar groups. Increased diffusion of water molecules is observed through the less cross-linked pathways. The existence of the fast pathways for water permeation has no effect on membrane's salt rejections.
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Affiliation(s)
- Tao Wei
- Dan F. Smith Department of Chemical Engineering, Lamar University , Beaumont, Texas 77710, United States
| | - Lin Zhang
- Key Laboratory of Biomass Chemical Engineering of MOE, Department of Chemical and Biological Engineering, Zhejiang University , Hangzhou, 310027, China
| | - Haiyang Zhao
- Key Laboratory of Biomass Chemical Engineering of MOE, Department of Chemical and Biological Engineering, Zhejiang University , Hangzhou, 310027, China
| | - Heng Ma
- Dan F. Smith Department of Chemical Engineering, Lamar University , Beaumont, Texas 77710, United States
| | - Md Symon Jahan Sajib
- Dan F. Smith Department of Chemical Engineering, Lamar University , Beaumont, Texas 77710, United States
| | - Hua Jiang
- Caerulean Environmental Technology Corporation , Tulsa, Oklahoma 74133, United States
| | - Sohail Murad
- Department of Chemical Engineering, Illinois Institute of Technology , Chicago, Illinois 60616, United States
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35
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Zhou Z, Rajabzadeh S, Shaikh AR, Kakihana Y, Ma W, Matsuyama H. Effect of surface properties on antifouling performance of poly(vinyl chloride-co-poly(ethylene glycol)methyl ether methacrylate)/PVC blend membrane. J Memb Sci 2016. [DOI: 10.1016/j.memsci.2016.05.008] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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36
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Liyana-Arachchi TP, Sturnfield JF, Colina CM. Ultrathin Molecular-Layer-by-Layer Polyamide Membranes: Insights from Atomistic Molecular Simulations. J Phys Chem B 2016; 120:9484-94. [PMID: 27558460 DOI: 10.1021/acs.jpcb.6b02801] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this study, we present an atomistic simulation study of several physicochemical properties of polyamide (PA) membranes formed from interfacial polymerization or from a molecular-layer-by-layer (mLbL) on a silicon wafer. These membranes are composed of meta-phenylenediamine (MPD) and benzene-1,3,5-tricarboxylic acid chloride (TMC) for potential reverse osmosis (RO) applications. The mLbL membrane generation procedure and the force field models were validated, by comparison with available experimental data, for hydrated density, membrane swelling, and pore size distributions of PA membranes formed by interfacial polymerization. Physicochemical properties such as density, free volume, thickness, the degree of cross-linking, atomic compositions, and average molecular orientation (which is relevant for the mLbL membranes) are compared for these different processes. The mLbL membranes are investigated systematically with respect to TMC monomer growth rate per substrate surface area, MPD/TMC ratio, and the number of mLbL deposition cycles. Atomistic simulations show that the mLbL deposition generates membranes with a constant film growth if both the TMC monomer growth rate and MPD/TMC monomer ratio are kept constant. The film growth rate increases with TMC monomer growth rate or MPD/TMC ratio. Furthermore, it was found on one hand that the mLbL membrane density and free volume varies significantly with respect to the TMC monomer growth rate, while on the other hand the degree of cross-linking and the atomic composition varies considerably with the MPD/TMC ratio. Additionally, it was found that both TMC and MPD orient at a tilted angle with respect to the substrate surface, where their angular distribution and average angle orientation depend on both the TMC growth rate and the number of deposition cycles. This study illustrates that molecular simulations can play a crucial role in the understanding of structural properties that can empower the design of the next generation RO membranes created from molecular-layer-by-layer (mLbL) on a silicon wafer.
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Affiliation(s)
- Thilanga P Liyana-Arachchi
- Department of Materials Science and Engineering, The Pennsylvania State University , University Park, Pennsylvania 16802, United States
| | - James F Sturnfield
- Engineering and Process Sciences, Process Optimization, The Dow Chemical Company , North Brazosport Boulevard, Freeport, Texas 77541, United States
| | - Coray M Colina
- Department of Materials Science and Engineering, The Pennsylvania State University , University Park, Pennsylvania 16802, United States
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Shen M, Keten S, Lueptow RM. Rejection mechanisms for contaminants in polyamide reverse osmosis membranes. J Memb Sci 2016. [DOI: 10.1016/j.memsci.2016.02.043] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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38
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Shen M, Keten S, Lueptow RM. Dynamics of water and solute transport in polymeric reverse osmosis membranes via molecular dynamics simulations. J Memb Sci 2016. [DOI: 10.1016/j.memsci.2016.01.051] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Araki T, Cruz-Silva R, Tejima S, Takeuchi K, Hayashi T, Inukai S, Noguchi T, Tanioka A, Kawaguchi T, Terrones M, Endo M. Molecular Dynamics Study of Carbon Nanotubes/Polyamide Reverse Osmosis Membranes: Polymerization, Structure, and Hydration. ACS APPLIED MATERIALS & INTERFACES 2015; 7:24566-24575. [PMID: 26505521 DOI: 10.1021/acsami.5b06248] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Carbon nanotubes/polyamide (PA) nanocomposite thin films have become very attractive as reverse osmosis (RO) membranes. In this work, we used molecular dynamics to simulate the influence of single walled carbon nanotubes (SWCNTs) in the polyamide molecular structure as a model case of a carbon nanotubes/polyamide nanocomposite RO membrane. It was found that the addition of SWCNTs decreases the pore size of the composite membrane and increases the Na and Cl ion rejection. Analysis of the radial distribution function of water confined in the pores of the membranes shows that SWCNT+PA nanocomposite membranes also exhibit smaller clusters of water molecules within the membrane, thus suggesting a dense membrane structure (SWCNT+PA composite membranes were 3.9% denser than bare PA). The results provide new insights into the fabrication of novel membranes reinforced with tubular structures for enhanced desalination performance.
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Affiliation(s)
- Takumi Araki
- Global Aqua Innovation Center, Shinshu University ; 4-17-1 Wakasato, Nagano 380-8553, Japan
- Research Organization for Information Science & Technology , 2-32-3, Kitashinagawa, Shinagawa-ku, Tokyo, 140-0001, Japan
| | - Rodolfo Cruz-Silva
- Global Aqua Innovation Center, Shinshu University ; 4-17-1 Wakasato, Nagano 380-8553, Japan
| | - Syogo Tejima
- Global Aqua Innovation Center, Shinshu University ; 4-17-1 Wakasato, Nagano 380-8553, Japan
- Research Organization for Information Science & Technology , 2-32-3, Kitashinagawa, Shinagawa-ku, Tokyo, 140-0001, Japan
| | - Kenji Takeuchi
- Global Aqua Innovation Center, Shinshu University ; 4-17-1 Wakasato, Nagano 380-8553, Japan
- Institute of Carbon Science and Technology, Shinshu University ; 4-17-1 Wakasato, Nagano 380-8553, Japan
| | - Takuya Hayashi
- Global Aqua Innovation Center, Shinshu University ; 4-17-1 Wakasato, Nagano 380-8553, Japan
- Institute of Carbon Science and Technology, Shinshu University ; 4-17-1 Wakasato, Nagano 380-8553, Japan
| | - Shigeki Inukai
- Global Aqua Innovation Center, Shinshu University ; 4-17-1 Wakasato, Nagano 380-8553, Japan
| | - Toru Noguchi
- Global Aqua Innovation Center, Shinshu University ; 4-17-1 Wakasato, Nagano 380-8553, Japan
- Institute of Carbon Science and Technology, Shinshu University ; 4-17-1 Wakasato, Nagano 380-8553, Japan
| | - Akihiko Tanioka
- Institute of Carbon Science and Technology, Shinshu University ; 4-17-1 Wakasato, Nagano 380-8553, Japan
| | - Takeyuki Kawaguchi
- Institute of Carbon Science and Technology, Shinshu University ; 4-17-1 Wakasato, Nagano 380-8553, Japan
| | - Mauricio Terrones
- Institute of Carbon Science and Technology, Shinshu University ; 4-17-1 Wakasato, Nagano 380-8553, Japan
- Department of Physics, Chemistry and Materials Science and Engineering, and Center for 2-Dimensional and Layered Materials, The Pennsylvania State University ; University Park, Pennsylvania 16802, United States
| | - Morinobu Endo
- Global Aqua Innovation Center, Shinshu University ; 4-17-1 Wakasato, Nagano 380-8553, Japan
- Institute of Carbon Science and Technology, Shinshu University ; 4-17-1 Wakasato, Nagano 380-8553, Japan
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Kolev V, Freger V. Molecular Dynamics Investigation of Ion Sorption and Permeation in Desalination Membranes. J Phys Chem B 2015; 119:14168-79. [DOI: 10.1021/acs.jpcb.5b06566] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Vesselin Kolev
- Wolfson Department of Chemical
Engineering, Technion, Haifa 32000, Israel
| | - Viatcheslav Freger
- Wolfson Department of Chemical
Engineering, Technion, Haifa 32000, Israel
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Suzuki Y, Koyano Y, Nagaoka M. Influence of Monomer Mixing Ratio on Membrane Nanostructure in Interfacial Polycondensation: Application of Hybrid MC/MD Reaction Method with Minimum Bond Convention. J Phys Chem B 2015; 119:6776-85. [DOI: 10.1021/jp512333h] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yuichi Suzuki
- Graduate
School of Information Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
| | - Yoshiyuki Koyano
- Graduate
School of Information Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
- Core Research
for Evolutional Science and Technology, Japan Science and Technology
Agency, Honmachi, Kawaguchi 332-0012, Japan
| | - Masataka Nagaoka
- Graduate
School of Information Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
- Core Research
for Evolutional Science and Technology, Japan Science and Technology
Agency, Honmachi, Kawaguchi 332-0012, Japan
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Polyamide–POSS hybrid membranes for seawater desalination: Effect of POSS inclusion on membrane properties. J Memb Sci 2014. [DOI: 10.1016/j.memsci.2014.03.004] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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45
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Structure and dynamics of water confined in a polyamide reverse-osmosis membrane: A molecular-simulation study. J Memb Sci 2014. [DOI: 10.1016/j.memsci.2014.01.054] [Citation(s) in RCA: 98] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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46
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Lei G, Liu C, Xie H, Song F. Separation of the hydrogen sulfide and methane mixture by the porous graphene membrane: Effect of the charges. Chem Phys Lett 2014. [DOI: 10.1016/j.cplett.2014.03.040] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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47
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Gai JG, Gong XL, Zhang X, Kang WL, Wang WW. Key role of hydrates in determining ion rejection by polyamide membrane. POLYM ENG SCI 2014. [DOI: 10.1002/pen.23882] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jing-Gang Gai
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University; Chengdu Sichuan 610065 China
| | - Xiao-Lei Gong
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University; Chengdu Sichuan 610065 China
| | - Xin Zhang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University; Chengdu Sichuan 610065 China
| | - Wu-Li Kang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University; Chengdu Sichuan 610065 China
| | - Wei-Wei Wang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University; Chengdu Sichuan 610065 China
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Application of interfacially polymerized polyamide composite membranes to isopropanol dehydration: Effect of membrane pre-treatment and temperature. J Memb Sci 2014. [DOI: 10.1016/j.memsci.2013.11.030] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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49
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Ebro H, Kim YM, Kim JH. Molecular dynamics simulations in membrane-based water treatment processes: A systematic overview. J Memb Sci 2013. [DOI: 10.1016/j.memsci.2013.03.027] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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50
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Cabrales-Navarro FA, Gómez-Ballesteros JL, Balbuena PB. Molecular dynamics simulations of metal-organic frameworks as membranes for gas mixtures separation. J Memb Sci 2013. [DOI: 10.1016/j.memsci.2012.10.058] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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