1
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Sang C, Zhang S, Si Z, Li Q, Wu H, Wang L, Dong S, Baeyens J, Cao PF, Qin P. Design of PDMS/PAN composite membranes with ultra-interfacial stability via layer integration. MATERIALS HORIZONS 2024. [PMID: 38984427 DOI: 10.1039/d4mh00483c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
The interfacial interaction between the selective layer and porous substrate directly determines the separation performance and service lifetime of functional composite membranes. Till now, almost all reported polymeric selective layers are physically in contact with the substrate, which is unsatisfactory for long-term operation. Herein, we introduced a functional composite membrane with ultra-interfacial stability via layer integration between the polydimethylsiloxane selective layer and polyacrylonitrile substrate, where a facile light-triggered copolymerization achieved their covalent bonding. The critical load for the failure of the selective layer is 45.73 mN when testing the interfacial adhesion, i.e., 5.8 times higher than that before modification and significantly higher than previous reports. It also achieves superior pervaporation performance with a separation factor of 9.54 and membrane flux of 1245.6 g m-2 h-1 feeding a 1000 ppm phenol/water solution at 60 °C that is significantly higher than the same type of polymeric ones. Not limited to pervaporation, such a strategy sheds light on the design of highly stable composite membranes with different purposes, while the facile photo-trigged technique shows enormous scalability.
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Affiliation(s)
- Chao Sang
- National Energy R&D Center for Biorefinery, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, P. R. China.
| | - Siyuan Zhang
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, P. R. China
| | - Zhihao Si
- National Energy R&D Center for Biorefinery, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, P. R. China.
| | - Qinxu Li
- National Energy R&D Center for Biorefinery, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, P. R. China.
| | - Hanzhu Wu
- National Energy R&D Center for Biorefinery, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, P. R. China.
| | - Lankun Wang
- National Energy R&D Center for Biorefinery, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, P. R. China.
| | - Shilong Dong
- National Energy R&D Center for Biorefinery, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, P. R. China.
| | - Jan Baeyens
- Department of Chemical Engineering, KU Leuven, 2860 Sint-Katelijne-Waver, Belgium
| | - Peng-Fei Cao
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, P. R. China.
| | - Peiyong Qin
- National Energy R&D Center for Biorefinery, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, P. R. China.
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2
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Alkandari S, Ching M, Lightfoot JC, Berri N, Leese HS, Castro-Dominguez B. Recycling and 3D-Printing Biodegradable Membranes for Gas Separation-toward a Membrane Circular Economy. ACS APPLIED ENGINEERING MATERIALS 2024; 2:1515-1525. [PMID: 38962722 PMCID: PMC11217943 DOI: 10.1021/acsaenm.4c00060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 05/13/2024] [Accepted: 05/13/2024] [Indexed: 07/05/2024]
Abstract
Polymer membranes employed in gas separation play a pivotal role in advancing environmental sustainability, energy production, and gas purification technologies. Despite their significance, the current design and manufacturing of these membranes lack cradle-to-cradle approaches, contributing to plastic waste pollution. This study explores emerging solutions, including the use of biodegradable biopolymers such as polyhydroxybutyrate (PHB) and membrane recycling, with a focus on the specific impact of mechanical recycling on the performance of biodegradable gas separation membranes. This research represents the first systematic exploration of recycling biodegradable membranes for gas separation. Demonstrating that PHB membranes can be recycled and remanufactured without solvents using hot-melt extrusion and 3D printing, the research highlights PHB's promising performance in developing more sustainable CO2 separations, despite an increase in gas permeability with successive recycling steps due to reduced polymer molecular weight. The study emphasizes the excellent thermal, chemical, and mechanical stability of PHB membranes, albeit with a marginal reduction in gas selectivity upon recycling. However, limitations in PHB's molecular weight affecting extrudability and processability restrict the recycling to three cycles. Anticipating that this study will serve as a foundational exploration, we foresee more sophisticated recycling studies for gas separation membranes, paving the way for a circular economy in future membrane technologies.
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Affiliation(s)
| | - Matthew Ching
- Department
of Chemical Engineering, University of Bath, Bath BA2 7AY, U.K.
| | - Jasmine C. Lightfoot
- Department
of Chemical Engineering, University of Bath, Bath BA2 7AY, U.K.
- Centre for Digital Manufacturing
and Design (dMaDe), University of Bath, Bath BA2 7AY, U.K.
| | - Nael Berri
- Department
of Chemical Engineering, University of Bath, Bath BA2 7AY, U.K.
- Centre
for Bioengineering and Biomedical Technologies, University of Bath, Bath BA2 7AY, U.K.
| | - Hannah S. Leese
- Department
of Chemical Engineering, University of Bath, Bath BA2 7AY, U.K.
- Centre
for Bioengineering and Biomedical Technologies, University of Bath, Bath BA2 7AY, U.K.
| | - Bernardo Castro-Dominguez
- Department
of Chemical Engineering, University of Bath, Bath BA2 7AY, U.K.
- Centre for Digital Manufacturing
and Design (dMaDe), University of Bath, Bath BA2 7AY, U.K.
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3
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Li T, Wang J, Qian K, Ding W, Zhang T. Fluid energy theory of membrane. WATER RESEARCH 2024; 260:121900. [PMID: 38870862 DOI: 10.1016/j.watres.2024.121900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 05/28/2024] [Accepted: 06/05/2024] [Indexed: 06/15/2024]
Abstract
Membrane science is the key strategy to solve water shortage in the future, and its essence is energy and mass transfer. Due to the complexity and variety of the internal structure of membrane, the energy transfer theory of membrane is still a black box theory. Herein, a new fluid mechanics principle is introduced to establish the energy fluid theory of membrane, which is translated into the energy formula: such as the initial total pressure difference (ΔP), the flow rate of fluid exiting the membrane (v1 and v2), fluid density (ρ), and energy consumption by salt resistance (NSR): { [Formula: see text] +12ρv23}. The theoretical framework is not only helpful for the data analysis of the energy transfer process of membranes, but also helps to allow for more in-depth and specific theoretical research. For instance, the relationship between NSR and the concentration difference (C) of salt can be expressed as NSR = aCb (a-product constant, b-exponential constant, R2>0.99). Hence, the basic theory can not only be widely applied to a variety of membranes with complex internal structure, but also have a profound impact on the application and research of membrane science.
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Affiliation(s)
- Tian Li
- Southwest University, Chongqing 400715, China.
| | - Jinjun Wang
- Southwest University, Chongqing 400715, China
| | - Kun Qian
- Southwest University, Chongqing 400715, China
| | - Wei Ding
- Southwest University, Chongqing 400715, China.
| | - Tiancheng Zhang
- Civil Engineering Department, University of Nebraska-Lincoln, Omaha, NE, United States.
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4
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Zhang Y, Wu F, Yang HY, Wang G, Ren ZH, Guan ZH. Synthesis of Cycloaliphatic Polyamides via Palladium-Catalyzed Hydroaminocarbonylative Polymerization. J Am Chem Soc 2024; 146:12883-12888. [PMID: 38709642 DOI: 10.1021/jacs.4c01210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Polyamides represent one class of materials that is important in modern society. Because of the numerous potential applications of polyamides in various fields, there is a high demand for new polyamide structures, which necessitates the development of new polymerization methods. Herein, we report a novel and efficient palladium-catalyzed hydroaminocarbonylative polymerization of dienes and diamines for the synthesis of cycloaliphatic polyamides. The method employs readily available starting materials, proceeds in an atom-economic manner, and creates a series of new functional polyamides in high yields and high molecular weights. In contrast with the traditional polyamides based on adipic acid, the cycloaliphatic polyamides have superior thermal resistance, higher glass-transition temperature, and better solubility in common organic solvents, thus probably featuring the merits of high-performance and good processability.
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Affiliation(s)
- Yaodu Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi'an 710127, P. R. China
| | - Fei Wu
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi'an 710127, P. R. China
| | - Hui-Yi Yang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi'an 710127, P. R. China
| | - Gang Wang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi'an 710127, P. R. China
| | - Zhi-Hui Ren
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi'an 710127, P. R. China
| | - Zheng-Hui Guan
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi'an 710127, P. R. China
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5
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Sarkar P, Wu C, Yang Z, Tang CY. Empowering ultrathin polyamide membranes at the water-energy nexus: strategies, limitations, and future perspectives. Chem Soc Rev 2024; 53:4374-4399. [PMID: 38529541 DOI: 10.1039/d3cs00803g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
Membrane-based separation is one of the most energy-efficient methods to meet the growing need for a significant amount of fresh water. It is also well-known for its applications in water treatment, desalination, solvent recycling, and environmental remediation. Most typical membranes used for separation-based applications are thin-film composite membranes created using polymers, featuring a top selective layer generated by employing the interfacial polymerization technique at an aqueous-organic interface. In the last decade, various manufacturing techniques have been developed in order to create high-specification membranes. Among them, the creation of ultrathin polyamide membranes has shown enormous potential for achieving a significant increase in the water permeation rate, translating into major energy savings in various applications. However, this great potential of ultrathin membranes is greatly hindered by undesired transport phenomena such as the geometry-induced "funnel effect" arising from the substrate membrane, severely limiting the actual permeation rate. As a result, the separation capability of ultrathin membranes is still not fully unleashed or understood, and a critical assessment of their limitations and potential solutions for future studies is still lacking. Here, we provide a summary of the latest developments in the design of ultrathin polyamide membranes, which have been achieved by controlling the interfacial polymerization process and utilizing a number of novel manufacturing processes for ionic and molecular separations. Next, an overview of the in-depth assessment of their limitations resulting from the substrate membrane, along with potential solutions and future perspectives will be covered in this review.
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Affiliation(s)
- Pulak Sarkar
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong SAR, China.
| | - Chenyue Wu
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong SAR, China.
| | - Zhe Yang
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong SAR, China.
- Dow Centre for Sustainable Engineering Innovation, School of Chemical Engineering, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Chuyang Y Tang
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong SAR, China.
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6
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Zhu CY, Li HN, Guo BB, Fang Y, Liu C, Yang HC, Zhang C, Liang HQ, Xu ZK. Leveraging Janus Substrates as a Confined "Interfacial Reactor" to Synthesize Ultrapermeable Polyamide Nanofilms. RESEARCH (WASHINGTON, D.C.) 2024; 7:0359. [PMID: 38694199 PMCID: PMC11062503 DOI: 10.34133/research.0359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 03/29/2024] [Indexed: 05/04/2024]
Abstract
Porous substrates act as open "interfacial reactors" during the synthesis of polyamide composite membranes via interfacial polymerization. However, achieving a thin and dense polyamide nanofilm with high permeance and selectivity is challenging when using a conventional substrate with uniform wettability. To overcome this limitation, we propose the use of Janus porous substrates as confined interfacial reactors to decouple the local monomer concentration from the total monomer amount during interfacial polymerization. By manipulating the location of the hydrophilic/hydrophobic interface in a Janus porous substrate, we can precisely control the monomer solution confined within the hydrophilic layer without compromising its concentration. The hydrophilic surface ensures the uniform distribution of monomers, preventing the formation of defects. By employing Janus substrates fabricated through single-sided deposition of polydopamine/polyethyleneimine, we significantly reduce the thickness of the polyamide nanofilms from 88.4 to 3.8 nm by decreasing the thickness of the hydrophilic layer. This reduction leads to a remarkable enhancement in water permeance from 7.2 to 52.0 l/m2·h·bar while still maintaining ~96% Na2SO4 rejection. The overall performance of this membrane surpasses that of most reported membranes, including state-of-the-art commercial products. The presented strategy is both simple and effective, bringing ultrapermeable polyamide nanofilms one step closer to practical separation applications.
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Affiliation(s)
- Cheng-Ye Zhu
- MOE Engineering Research Center of Membrane and Water Treatment Technology, and Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering,
Zhejiang University, Hangzhou 310058, China
- The “Belt and Road” Sino-Portugal Joint Lab on Advanced Materials, International Research Center for X Polymers,
Zhejiang University, Hangzhou 310058, China
| | - Hao-Nan Li
- MOE Engineering Research Center of Membrane and Water Treatment Technology, and Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering,
Zhejiang University, Hangzhou 310058, China
| | - Bian-Bian Guo
- MOE Engineering Research Center of Membrane and Water Treatment Technology, and Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering,
Zhejiang University, Hangzhou 310058, China
| | - Yu Fang
- MOE Engineering Research Center of Membrane and Water Treatment Technology, and Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering,
Zhejiang University, Hangzhou 310058, China
| | - Chang Liu
- MOE Engineering Research Center of Membrane and Water Treatment Technology, and Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering,
Zhejiang University, Hangzhou 310058, China
- The “Belt and Road” Sino-Portugal Joint Lab on Advanced Materials, International Research Center for X Polymers,
Zhejiang University, Hangzhou 310058, China
| | - Hao-Cheng Yang
- MOE Engineering Research Center of Membrane and Water Treatment Technology, and Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering,
Zhejiang University, Hangzhou 310058, China
- The “Belt and Road” Sino-Portugal Joint Lab on Advanced Materials, International Research Center for X Polymers,
Zhejiang University, Hangzhou 310058, China
| | - Chao Zhang
- MOE Engineering Research Center of Membrane and Water Treatment Technology, and Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering,
Zhejiang University, Hangzhou 310058, China
- The “Belt and Road” Sino-Portugal Joint Lab on Advanced Materials, International Research Center for X Polymers,
Zhejiang University, Hangzhou 310058, China
| | - Hong-Qing Liang
- MOE Engineering Research Center of Membrane and Water Treatment Technology, and Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering,
Zhejiang University, Hangzhou 310058, China
- The “Belt and Road” Sino-Portugal Joint Lab on Advanced Materials, International Research Center for X Polymers,
Zhejiang University, Hangzhou 310058, China
| | - Zhi-Kang Xu
- MOE Engineering Research Center of Membrane and Water Treatment Technology, and Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering,
Zhejiang University, Hangzhou 310058, China
- The “Belt and Road” Sino-Portugal Joint Lab on Advanced Materials, International Research Center for X Polymers,
Zhejiang University, Hangzhou 310058, China
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7
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Kalutantirige FC, He J, Yao L, Cotty S, Zhou S, Smith JW, Tajkhorshid E, Schroeder CM, Moore JS, An H, Su X, Li Y, Chen Q. Beyond nothingness in the formation and functional relevance of voids in polymer films. Nat Commun 2024; 15:2852. [PMID: 38605028 PMCID: PMC11009415 DOI: 10.1038/s41467-024-46584-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 03/04/2024] [Indexed: 04/13/2024] Open
Abstract
Voids-the nothingness-broadly exist within nanomaterials and impact properties ranging from catalysis to mechanical response. However, understanding nanovoids is challenging due to lack of imaging methods with the needed penetration depth and spatial resolution. Here, we integrate electron tomography, morphometry, graph theory and coarse-grained molecular dynamics simulation to study the formation of interconnected nanovoids in polymer films and their impacts on permeance and nanomechanical behaviour. Using polyamide membranes for molecular separation as a representative system, three-dimensional electron tomography at nanometre resolution reveals nanovoid formation from coalescence of oligomers, supported by coarse-grained molecular dynamics simulations. Void analysis provides otherwise inaccessible inputs for accurate fittings of methanol permeance for polyamide membranes. Three-dimensional structural graphs accounting for the tortuous nanovoids within, measure higher apparent moduli with polyamide membranes of higher graph rigidity. Our study elucidates the significance of nanovoids beyond the nothingness, impacting the synthesis‒morphology‒function relationships of complex nanomaterials.
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Affiliation(s)
| | - Jinlong He
- Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Lehan Yao
- Department of Materials Science and Engineering, University of Illinois, Urbana, IL, 61801, USA
| | - Stephen Cotty
- Department of Chemical and Biomolecular Engineering, University of Illinois, Urbana, IL, 61801, USA
| | - Shan Zhou
- Department of Materials Science and Engineering, University of Illinois, Urbana, IL, 61801, USA
| | - John W Smith
- Department of Materials Science and Engineering, University of Illinois, Urbana, IL, 61801, USA
| | - Emad Tajkhorshid
- Department of Biochemistry, University of Illinois, Urbana, IL, 61801, USA
- NIH Resource for Macromolecular Modelling and Visualization, Beckman Institute for Advanced Science and Technology, University of Illinois, Urbana, IL, 61801, USA
| | - Charles M Schroeder
- Department of Materials Science and Engineering, University of Illinois, Urbana, IL, 61801, USA
- Department of Chemical and Biomolecular Engineering, University of Illinois, Urbana, IL, 61801, USA
- Materials Research Laboratory, University of Illinois, Urbana, IL, 61801, USA
- Beckman Institute for Advanced Science and Technology, University of Illinois, Urbana, IL, 61801, USA
| | - Jeffrey S Moore
- Department of Chemistry, University of Illinois, Urbana, IL, 61801, USA
- Department of Materials Science and Engineering, University of Illinois, Urbana, IL, 61801, USA
- Beckman Institute for Advanced Science and Technology, University of Illinois, Urbana, IL, 61801, USA
| | - Hyosung An
- Department of Petrochemical Materials Engineering, Chonnam National University, Yeosu, Jeollanam-do, 59631, South Korea
| | - Xiao Su
- Department of Chemical and Biomolecular Engineering, University of Illinois, Urbana, IL, 61801, USA
| | - Ying Li
- Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI, 53706, USA.
| | - Qian Chen
- Department of Chemistry, University of Illinois, Urbana, IL, 61801, USA.
- Department of Materials Science and Engineering, University of Illinois, Urbana, IL, 61801, USA.
- Department of Chemical and Biomolecular Engineering, University of Illinois, Urbana, IL, 61801, USA.
- Materials Research Laboratory, University of Illinois, Urbana, IL, 61801, USA.
- Beckman Institute for Advanced Science and Technology, University of Illinois, Urbana, IL, 61801, USA.
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8
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Luo X, Jiang L, Zhao R, Wang Y, Xiao X, Ghazouani S, Yu L, Mai Z, Matsuyama H, Jin P. Energy-efficient trehalose-based polyester nanofiltration membranes for zero-discharge textile wastewater treatment. JOURNAL OF HAZARDOUS MATERIALS 2024; 465:133059. [PMID: 38000287 DOI: 10.1016/j.jhazmat.2023.133059] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 10/26/2023] [Accepted: 11/20/2023] [Indexed: 11/26/2023]
Abstract
Recovery of water, salts, and hazardous dye from complex saline textile wastewater faces obstacles in separating dissolved ionic substances and recovering organic components during desalination. This study realized the simultaneous fractionation, desalination, and dye removal/recovery treatment of textile wastewater by using trehalose (Tre) as an aqueous monomer to prepare polyester loose nanofiltration (LNF) membrane with fine control microstructure via interfacial polymerization. Outperforming the NF270 commercial membrane, the Tre-1.05/TMC optimized membrane achieves zero-discharge textile wastewater treatment, cutting energy consumption by 295% and reducing water consumption by 42.8%. This efficiency surge results from remarkable water permeability (130.83 L m-2 h-1 bar-1) and impressive dye desalination (NaCl/ Direct Red 23 separation factor of 275) of the Tre-1.05/TMC membrane. For a deeper comprehension of filtration performance, the sieving mechanism of polyester LNF membranes was systematically elucidated. This strategic approach offers significant prospects for energy conservation, carbon emission mitigation, and enhanced feasibility of membrane-based wastewater treatment systems.
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Affiliation(s)
- Xiongwei Luo
- Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Lei Jiang
- Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Rui Zhao
- Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Yue Wang
- Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Xin Xiao
- Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Sabrine Ghazouani
- Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Lihua Yu
- Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Zhaohuan Mai
- 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
| | - Pengrui Jin
- Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium.
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9
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Xue YR, Liu C, Ma ZY, Zhu CY, Wu J, Liang HQ, Yang HC, Zhang C, Xu ZK. Harmonic amide bond density as a game-changer for deciphering the crosslinking puzzle of polyamide. Nat Commun 2024; 15:1539. [PMID: 38378907 PMCID: PMC10879148 DOI: 10.1038/s41467-024-45918-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 02/07/2024] [Indexed: 02/22/2024] Open
Abstract
It is particularly essential to analyze the complex crosslinked networks within polyamide membranes and their correlation with separation efficiency for the insightful tailoring of desalination membranes. However, using the degree of network crosslinking as a descriptor yields abnormal analytical outcomes and limited correlation with desalination performance due to imperfections in segmentation and calculation methods. Herein, we introduce a more rational parameter, denoted as harmonic amide bond density (HABD), to unravel the relationship between the crosslinked networks of polyamide membranes and their desalination performance. HABD quantifies the number of distinct amide bonds per unit mass of polyamide, based on a comprehensive segmentation of polyamide structure and consistent computational protocols derived from X-ray photoelectron spectroscopy data. Compared to its counterpart, HABD overcomes the limitations and offers a more accurate depiction of the crosslinked networks. Empirical data validate that HABD exhibits the expected correlation with the salt rejection and water permeance of reverse osmosis and nanofiltration polyamide membranes. Notably, HABD is applicable for analyzing complex crosslinked polyamide networks formed by highly functional monomers. By offering a powerful toolbox for systematic analysis of crosslinked polyamide networks, HABD facilitates the development of permselective membranes with enhanced performance in desalination applications.
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Affiliation(s)
- Yu-Ren Xue
- Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province, MOE Engineering Research Center of Membrane and Water Treatment, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310058, China
- The "Belt and Road" Sino-Portugal Joint Lab on Advanced Materials, International Research Center for X Polymers, Zhejiang University, Hangzhou, 310058, China
| | - Chang Liu
- Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province, MOE Engineering Research Center of Membrane and Water Treatment, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310058, China
- The "Belt and Road" Sino-Portugal Joint Lab on Advanced Materials, International Research Center for X Polymers, Zhejiang University, Hangzhou, 310058, China
| | - Zhao-Yu Ma
- Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province, MOE Engineering Research Center of Membrane and Water Treatment, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310058, China
- The "Belt and Road" Sino-Portugal Joint Lab on Advanced Materials, International Research Center for X Polymers, Zhejiang University, Hangzhou, 310058, China
| | - Cheng-Ye Zhu
- Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province, MOE Engineering Research Center of Membrane and Water Treatment, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310058, China
- The "Belt and Road" Sino-Portugal Joint Lab on Advanced Materials, International Research Center for X Polymers, Zhejiang University, Hangzhou, 310058, China
| | - Jian Wu
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Hong-Qing Liang
- Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province, MOE Engineering Research Center of Membrane and Water Treatment, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310058, China.
- The "Belt and Road" Sino-Portugal Joint Lab on Advanced Materials, International Research Center for X Polymers, Zhejiang University, Hangzhou, 310058, China.
| | - Hao-Cheng Yang
- Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province, MOE Engineering Research Center of Membrane and Water Treatment, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310058, China
- The "Belt and Road" Sino-Portugal Joint Lab on Advanced Materials, International Research Center for X Polymers, Zhejiang University, Hangzhou, 310058, China
| | - Chao Zhang
- Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province, MOE Engineering Research Center of Membrane and Water Treatment, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310058, China
- The "Belt and Road" Sino-Portugal Joint Lab on Advanced Materials, International Research Center for X Polymers, Zhejiang University, Hangzhou, 310058, China
| | - Zhi-Kang Xu
- Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province, MOE Engineering Research Center of Membrane and Water Treatment, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310058, China.
- The "Belt and Road" Sino-Portugal Joint Lab on Advanced Materials, International Research Center for X Polymers, Zhejiang University, Hangzhou, 310058, China.
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10
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Welch BC, Antonio EN, Chaney TP, McIntee OM, Strzalka J, Bright VM, Greenberg AR, Segal-Peretz T, Toney M, George SM. Building Semipermeable Films One Monomer at a Time: Structural Advantages via Molecular Layer Deposition vs Interfacial Polymerization. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2024; 36:1362-1374. [PMID: 38370278 PMCID: PMC10870709 DOI: 10.1021/acs.chemmater.3c02519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 12/29/2023] [Accepted: 01/02/2024] [Indexed: 02/20/2024]
Abstract
Molecular layer deposition (MLD) provides the opportunity to perform condensation polymerization one vaporized monomer at a time for the creation of precise, selective nanofilms for desalination membranes. Here, we compare the structure, chemistry, and morphology of two types of commercial interfacial polymerzation (IP) membranes with lab-made MLD films. M-phenylenediamine (MPD) and trimesoyl chloride (TMC) produced a cross-linked, aromatic polyamide often used in reverse osmosis membranes at MLD growth rates of 2.9 Å/cycle at 115 °C. Likewise, piperazine (PIP) and TMC formed polypiperazine amide, a common selective layer in nanofiltration membranes, with MLD growth rates of 1.5 Å/cycle at 115 °C. Ellipsometry and X-ray reflectivity results suggest that the surface of the MLD films is comprised of polymer segments roughly two monomers in length, which are connected at one end to the cross-linked bulk layer. As a result of this structure as well as the triple-functionality of TMC, MPD-TMC had a temperature window of stable growth rate from 115 to 150 °C, which is unlike any non-cross-linked MLD chemistries reported in the literature. Compared to IP films, corresponding MLD films were denser and morphologically conformal, which suggests a reduction in void volumes; this explains the high degree of salt rejection and reduced flux previously observed for exceptionally thin MPD-TMC MLD membranes. Using X-ray photoelectron spectroscopy and infrared spectroscopy, MLD PIP-TMC films evidenced a completely cross-linked internal structure, which lacked amine and carboxyl groups, pointing to a hydrophobic bulk structure, ideal for optimized water flux. Grazing-incidence wide-angle X-ray scattering showed broad features in each polyamide with d-spacings of 5.0 Å in PIP-TMC compared to that of 3.8 Å in MPD-TMC. While MLD and IP films were structurally identical to PIP-TMC, MPD-TMC IP films had a structure that may have been altered by post-treatment compared to MLD films. These results provide foundational insights into the MLD process, structure-performance relationships, and membrane fabrication.
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Affiliation(s)
- Brian C. Welch
- Israel
Institute of Technology, Haifa 3200003, Israel
- University
of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Emma N. Antonio
- University
of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Thomas P. Chaney
- University
of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Olivia M. McIntee
- University
of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Joseph Strzalka
- Argonne
National Laboratory, Lemont, Illinois 60439, United States
| | - Victor M. Bright
- University
of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Alan R. Greenberg
- University
of Colorado Boulder, Boulder, Colorado 80309, United States
| | | | - Michael Toney
- University
of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Steven M. George
- University
of Colorado Boulder, Boulder, Colorado 80309, United States
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11
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Khanzada NK, Al-Juboori RA, Khatri M, Ahmed FE, Ibrahim Y, Hilal N. Sustainability in Membrane Technology: Membrane Recycling and Fabrication Using Recycled Waste. MEMBRANES 2024; 14:52. [PMID: 38392679 PMCID: PMC10890584 DOI: 10.3390/membranes14020052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Revised: 01/23/2024] [Accepted: 02/07/2024] [Indexed: 02/24/2024]
Abstract
Membrane technology has shown a promising role in combating water scarcity, a globally faced challenge. However, the disposal of end-of-life membrane modules is problematic as the current practices include incineration and landfills as their final fate. In addition, the increase in population and lifestyle advancement have significantly enhanced waste generation, thus overwhelming landfills and exacerbating environmental repercussions and resource scarcity. These practices are neither economically nor environmentally sustainable. Recycling membranes and utilizing recycled material for their manufacturing is seen as a potential approach to address the aforementioned challenges. Depending on physiochemical conditions, the end-of-life membrane could be reutilized for similar, upgraded, and downgraded operations, thus extending the membrane lifespan while mitigating the environmental impact that occurred due to their disposal and new membrane preparation for similar purposes. Likewise, using recycled waste such as polystyrene, polyethylene terephthalate, polyvinyl chloride, tire rubber, keratin, and cellulose and their derivates for fabricating the membranes can significantly enhance environmental sustainability. This study advocates for and supports the integration of sustainability concepts into membrane technology by presenting the research carried out in this area and rigorously assessing the achieved progress. The membranes' recycling and their fabrication utilizing recycled waste materials are of special interest in this work. Furthermore, this study offers guidance for future research endeavors aimed at promoting environmental sustainability.
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Affiliation(s)
- Noman Khalid Khanzada
- NYUAD Water Research Center, New York University Abu Dhabi, Abu Dhabi P.O. Box 129188, United Arab Emirates
| | - Raed A Al-Juboori
- NYUAD Water Research Center, New York University Abu Dhabi, Abu Dhabi P.O. Box 129188, United Arab Emirates
| | - Muzamil Khatri
- NYUAD Water Research Center, New York University Abu Dhabi, Abu Dhabi P.O. Box 129188, United Arab Emirates
| | - Farah Ejaz Ahmed
- NYUAD Water Research Center, New York University Abu Dhabi, Abu Dhabi P.O. Box 129188, United Arab Emirates
| | - Yazan Ibrahim
- NYUAD Water Research Center, New York University Abu Dhabi, Abu Dhabi P.O. Box 129188, United Arab Emirates
| | - Nidal Hilal
- NYUAD Water Research Center, New York University Abu Dhabi, Abu Dhabi P.O. Box 129188, United Arab Emirates
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12
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Zhu Z, Chen T, Huang F, Wang S, Zhu P, Xu RX, Si T. Free-Boundary Microfluidic Platform for Advanced Materials Manufacturing and Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2304840. [PMID: 37722080 DOI: 10.1002/adma.202304840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 09/14/2023] [Indexed: 09/20/2023]
Abstract
Microfluidics, with its remarkable capacity to manipulate fluids and droplets at the microscale, has emerged as a powerful platform in numerous fields. In contrast to conventional closed microchannel microfluidic systems, free-boundary microfluidic manufacturing (FBMM) processes continuous precursor fluids into jets or droplets in a relatively spacious environment. FBMM is highly regarded for its superior flexibility, stability, economy, usability, and versatility in the manufacturing of advanced materials and architectures. In this review, a comprehensive overview of recent advancements in FBMM is provided, encompassing technical principles, advanced material manufacturing, and their applications. FBMM is categorized based on the foundational mechanisms, primarily comprising hydrodynamics, interface effects, acoustics, and electrohydrodynamic. The processes and mechanisms of fluid manipulation are thoroughly discussed. Additionally, the manufacturing of advanced materials in various dimensions ranging from zero-dimensional to three-dimensional, as well as their diverse applications in material science, biomedical engineering, and engineering are presented. Finally, current progress is summarized and future challenges are prospected. Overall, this review highlights the significant potential of FBMM as a powerful tool for advanced materials manufacturing and its wide-ranging applications.
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Affiliation(s)
- Zhiqiang Zhu
- Department of Precision Machinery and Precision Instrumentation, Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei, Anhui, 230026, China
- Department of Mechanical Engineering, City University of Hong Kong, Hong Kong, 999077, China
| | - Tianao Chen
- School of Biomedical Engineering, Division of Life Sciences and Medicine, Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, Jiangsu, 215123, China
| | - Fangsheng Huang
- Department of Modern Mechanics, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Shiyu Wang
- Department of Mechanical Engineering, City University of Hong Kong, Hong Kong, 999077, China
| | - Pingan Zhu
- Department of Mechanical Engineering, City University of Hong Kong, Hong Kong, 999077, China
| | - Ronald X Xu
- Department of Precision Machinery and Precision Instrumentation, Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei, Anhui, 230026, China
- School of Biomedical Engineering, Division of Life Sciences and Medicine, Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, Jiangsu, 215123, China
| | - Ting Si
- Department of Modern Mechanics, University of Science and Technology of China, Hefei, Anhui, 230026, China
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13
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Zhou S, Tan H, Chen K, Cheng X, Huang X, Gao C. Enhancing the water permeability of composite NF membranes through the incorporation of organic ions in the aqueous phase. RSC Adv 2024; 14:4645-4652. [PMID: 38318625 PMCID: PMC10839750 DOI: 10.1039/d3ra04972h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Accepted: 01/07/2024] [Indexed: 02/07/2024] Open
Abstract
Composite nanofiltration (NF) membranes prepared using interfacial polymerization (IP) have gained significant attention in the field of wastewater treatment. In this study, sodium camphor sulfonate (CSA-Na) and tetraethylammonium chloride (TEAC) were employed as aqueous phase additives to regulate the diffusion of piperazine (PIP) molecules through electrostatic interactions. The dissociated CSA-Na and TEAC in the aqueous solution formed an organic structure at a certain concentration, restricting the interfacial transport behavior of PIP monomers. The results show that when the content of CSA-Na is 2% w/v, TEAC is 3.9% w/v, that is, the material dosage ratio is 1 : 3, and the NF membrane shows the best performance, with a water flux of 55.61 L m-2 h-1 (test pressure is 0.5 MPa), and MgSO4 rejection rate of more than 98%.
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Affiliation(s)
- Shuai Zhou
- Second Institute of Oceanography of the State Oceanic Administration Hangzhou 310012 China
- Bluestar (Hangzhou) Membrane Industries Co., Ltd No. 602 Shunfeng Road, Linping District Hangzhou China 311100
| | - Huifen Tan
- Bluestar (Hangzhou) Membrane Industries Co., Ltd No. 602 Shunfeng Road, Linping District Hangzhou China 311100
| | - Keke Chen
- Bluestar (Hangzhou) Membrane Industries Co., Ltd No. 602 Shunfeng Road, Linping District Hangzhou China 311100
| | - Xin Cheng
- Bluestar (Hangzhou) Membrane Industries Co., Ltd No. 602 Shunfeng Road, Linping District Hangzhou China 311100
| | - Xiaojuan Huang
- Second Institute of Oceanography of the State Oceanic Administration Hangzhou 310012 China
- Bluestar (Hangzhou) Membrane Industries Co., Ltd No. 602 Shunfeng Road, Linping District Hangzhou China 311100
| | - Congjie Gao
- Second Institute of Oceanography of the State Oceanic Administration Hangzhou 310012 China
- Zhejiang University of Technology Hangzhou 310014 China
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14
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Burke DW, Jiang Z, Livingston AG, Dichtel WR. 2D Covalent Organic Framework Membranes for Liquid-Phase Molecular Separations: State of the Field, Common Pitfalls, and Future Opportunities. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2300525. [PMID: 37014260 DOI: 10.1002/adma.202300525] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 03/21/2023] [Indexed: 06/19/2023]
Abstract
2D covalent organic frameworks (2D COFs) are attractive candidates for next-generation membranes due to their robust linkages and uniform, tunable pores. Many publications have claimed to achieve selective molecular transport through COF pores, but reported performance metrics for similar networks vary dramatically, and in several cases the reported experiments are inadequate to support such conclusions. These issues require a reevaluation of the literature. Published examples of 2D COF membranes for liquid-phase separations can be broadly divided into two categories, each with common performance characteristics: polycrystalline COF films (most >1 µm thick) and weakly crystalline or amorphous films (most <500 nm thick). Neither category has demonstrated consistent relationships between the designed COF pore structure and separation performance, suggesting that these imperfect materials do not sieve molecules through uniform pores. In this perspective, rigorous practices for evaluating COF membrane structures and separation performance are described, which will facilitate their development toward molecularly precise membranes capable of performing previously unrealized chemical separations. In the absence of this more rigorous standard of proof, reports of COF-based membranes should be treated with skepticism. As methods to control 2D polymerization improve, precise 2D polymer membranes may exhibit exquisite and energy efficient performance relevant for contemporary separation challenges.
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Affiliation(s)
- David W Burke
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
| | - Zhiwei Jiang
- School of Engineering and Materials Science, Queen Mary University of London, London, E1 4NS, UK
- Department of Membrane Research, Exactmer Limited, Londoneast-uk Business and Technical Park, Yew Tree Avenue, Dagenham, RM10 7FN, UK
| | - Andrew G Livingston
- School of Engineering and Materials Science, Queen Mary University of London, London, E1 4NS, UK
| | - William R Dichtel
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
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15
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Huang L, Ding L, Caro J, Wang H. MXene-based Membranes for Drinking Water Production. Angew Chem Int Ed Engl 2023; 62:e202311138. [PMID: 37615530 DOI: 10.1002/anie.202311138] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 08/24/2023] [Accepted: 08/24/2023] [Indexed: 08/25/2023]
Abstract
The soaring development of industry exacerbates the shortage of fresh water, making drinking water production an urgent demand. Membrane techniques feature the merits of high efficiency, low energy consumption, and easy operation, deemed as the most potential technology to purify water. Recently, a new type of two-dimensional materials, MXenes as the transition metal carbides or nitrides in the shape of nanosheets, have attracted enormous interest in water purification due to their extraordinary properties such as adjustable hydrophilicity, easy processibility, antifouling resistance, mechanical strength, and light-to-heat transformation capability. In pioneering studies, MXene-based membranes have been evaluated in the past decade for drinking water production including the separation of bacteria, dyes, salts, and heavy metals. This review focuses on the recent advancement of MXene-based membranes for drinking water production. A brief introduction of MXenes is given first, followed by descriptions of their unique properties. Then, the preparation methods of MXene membranes are summarized. The various applications of MXene membranes in water treatment and the corresponding separation mechanisms are discussed in detail. Finally, the challenges and prospects of MXene membranes are presented with the hope to provide insightful guidance on the future design and fabrication of high-performance MXene membranes.
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Affiliation(s)
- Lingzhi Huang
- Beijing Key Laboratory for Membrane Materials and Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Li Ding
- Beijing Key Laboratory for Membrane Materials and Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Jürgen Caro
- Institute of Physical Chemistry and Electrochemistry, Leibniz University Hannover, Callinstrasse 3A, 30167, Hannover, Germany
| | - Haihui Wang
- Beijing Key Laboratory for Membrane Materials and Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
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16
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Yao A, Du J, Sun Q, Liu L, Song Z, He W, Liu J. Flexible Covalent Organic Network with Ordered Honeycomb Nanoarchitecture for Molecular Separations. ACS NANO 2023; 17:22916-22927. [PMID: 37962059 DOI: 10.1021/acsnano.3c08028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Membranes with precisely defined nanostructure are desirable for energy-efficient molecular separations. The emergence of membranes with honeycomb lattice or topological nanopores is of fundamental importance. The tailor-made nanostructure and morphology may have huge potential to resolve the longstanding bottlenecks in membrane science and technology. Herein, inspired by honeycomb architecture, we demonstrate an effective and scalable route based on interfacial polymerization (IP) to generate flexible and ordered covalent organic network (CON) membranes for liquid-phase molecular separations. The aperture size of a CON membrane can be reasonably designed through the strong covalent bond between molecular building blocks. The fabricated CON membrane formed by IP showed an obviously size-dependent sieving of molecules, yielding a stepwise conversion from low rejection to the expected high rejection. Moreover, the CON membrane was also found to have the sieving capability for tetracycline and ciprofloxacin, ascribed to the effect of size exclusion by an ordered single-nanoscale channel (<1 nm). This approach provides a viable strategy for creating target-sized channels from molecular-level design and demonstrates their potential for accurate molecular separations.
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Affiliation(s)
- Ayan Yao
- Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230052, Anhui, China
| | - Jingcheng Du
- Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230052, Anhui, China
| | - Qian Sun
- Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230052, Anhui, China
| | - Linghao Liu
- Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230052, Anhui, China
| | - Ziye Song
- Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230052, Anhui, China
| | - Wen He
- Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230052, Anhui, China
| | - Jiangtao Liu
- Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230052, Anhui, China
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17
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Roy Barman S, Gavit P, Chowdhury S, Chatterjee K, Nain A. 3D-Printed Materials for Wastewater Treatment. JACS AU 2023; 3:2930-2947. [PMID: 38034974 PMCID: PMC10685417 DOI: 10.1021/jacsau.3c00409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 10/05/2023] [Accepted: 10/06/2023] [Indexed: 12/02/2023]
Abstract
The increasing levels of water pollution pose an imminent threat to human health and the environment. Current modalities of wastewater treatment necessitate expensive instrumentation and generate large amounts of waste, thus failing to provide ecofriendly and sustainable solutions for water purification. Over the years, novel additive manufacturing technology, also known as three-dimensional (3D) printing, has propelled remarkable innovation in different disciplines owing to its capability to fabricate customized geometric objects rapidly and cost-effectively with minimal byproducts and hence undoubtedly emerged as a promising alternative for wastewater treatment. Especially in membrane technology, 3D printing enables the designing of ultrathin membranes and membrane modules layer-by-layer with different morphologies, complex hierarchical structures, and a wide variety of materials otherwise unmet using conventional fabrication strategies. Extensive research has been dedicated to preparing membrane spacers with excellent surface properties, potentially improving the membrane filtration performance for water remediation. The revolutionary developments in membrane module fabrication have driven the utilization of 3D printing approaches toward manufacturing advanced membrane components, including biocarriers, sorbents, catalysts, and even whole membranes. This perspective highlights recent advances and essential outcomes in 3D printing technologies for wastewater treatment. First, different 3D printing techniques, such as material extrusion, selective laser sintering (SLS), and vat photopolymerization, emphasizing membrane fabrication, are briefly discussed. Importantly, in this Perspective, we focus on the unique 3D-printed membrane modules, namely, feed spacers, biocarriers, sorbents, and so on. The unparalleled advantages of 3D printed membrane components in surface area, geometry, and thickness and their influence on antifouling, removal efficiency, and overall membrane performance are underlined. Moreover, the salient applications of 3D printing technologies for water desalination, oil-water separation, heavy metal and organic pollutant removal, and nuclear decontamination are also outlined. This Perspective summarizes the recent works, current limitations, and future outlook of 3D-printed membrane technologies for wastewater treatment.
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Affiliation(s)
- Snigdha Roy Barman
- Department
of Bioengineering, Indian Institute of Science, Bangalore, Karnataka 560012, India
| | - Pratik Gavit
- Department
of Materials Engineering, Indian Institute
of Science, Bangalore, Karnataka 560012, India
| | - Saswat Chowdhury
- Department
of Bioengineering, Indian Institute of Science, Bangalore, Karnataka 560012, India
| | - Kaushik Chatterjee
- Department
of Bioengineering, Indian Institute of Science, Bangalore, Karnataka 560012, India
- Department
of Materials Engineering, Indian Institute
of Science, Bangalore, Karnataka 560012, India
| | - Amit Nain
- Department
of Materials Engineering, Indian Institute
of Science, Bangalore, Karnataka 560012, India
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18
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Zhao G, Gao H, Qu Z, Fan H, Meng H. Anhydrous interfacial polymerization of sub-1 Å sieving polyamide membrane. Nat Commun 2023; 14:7624. [PMID: 37993445 PMCID: PMC10665378 DOI: 10.1038/s41467-023-43291-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 11/06/2023] [Indexed: 11/24/2023] Open
Abstract
Highly permeable polyamide (PA) membrane capable of precise ionic sieving can be utilized for many energy-efficient chemical separations. To fulfill this target, it is crucial to innovate membrane-forming process to induce a narrow pore-size distribution. Herein, we report an anhydrous interfacial polymerization (AIP) at a solid-liquid interface where the amine layer sublimated is in direct contact with the alkane containing acyl chlorides. In such a heterophase interface, water-caused side reactions are eliminated, and the amines in compact arrangement enable an intensive and orderly IP reaction, leading to a unique PA layer with an ionic sieving accuracy of 0.5 Å. The AIP-PA membrane demonstrates excellent separation selectivities of monovalent and divalent cations such as Mg2+/Li+ (78.3) and anions such as Cl-/SO42- (29.2) together with a high water flux up to 13.6 L m-2 h-1 bar-1. Our AIP strategy may provide inspirations for engineering high-precision PA membranes available in various advanced separations.
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Affiliation(s)
- Guangjin Zhao
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Haiqi Gao
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, 830046, PR China
| | - Zhou Qu
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
| | - Hongwei Fan
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China.
| | - Hong Meng
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, 830046, PR China.
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19
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Zhang W, Chew NGP, Coronell O. Facile Synthesis of Electrically Conductive Membranes. ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS 2023; 10:1135-1141. [PMID: 38144434 PMCID: PMC10735243 DOI: 10.1021/acs.estlett.3c00631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2023]
Abstract
A facile and effective strategy that can be used to fabricate electrically conductive membranes (ECMs) of diverse filtration performance (i.e., water productivity and solute rejection) is not available yet. Herein, we report a facile method that enables the fabrication of ECMs of a broad performance range. The method is based on the use of polyethylenimine (PEI), glutaraldehyde, and any of a diverse set of conductive materials to cast an electrically conductive layer atop any of a diverse set of substrates (i.e., from microfiltration to reverse osmosis membranes). We developed the reported ECM fabrication method using graphite as the conductive material and PVDF membranes as substrates. We demonstrate that graphite-PVDF ECMs were stable and electrically conductive and could be successfully used for solute filtration and electrochemical degradation. We also confirmed that the PEI/glutaraldehyde-based ECM fabrication method is suitable for conductive materials other than graphite, including carbon nanotubes, reduced graphene oxide, activated charcoal, and silver nanoparticles. Compared with the substrates used for their fabrication, ECMs showed low electrical sheet resistances that varied with conductive material, increased solute rejection, and reduced water permeance. Taken together, this work presents a promising general strategy for the fabrication of ECMs for environmental applications from diverse substrates and conductive materials.
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Affiliation(s)
- Wei Zhang
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Nick Guan Pin Chew
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Orlando Coronell
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
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20
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Xin JH, Fan HY, Guo BB, Yang HC, Zhu CY, Zhang C, Xu ZK. Interfacial polymerization at unconventional interfaces: an emerging strategy to tailor thin-film composite membranes. Chem Commun (Camb) 2023; 59:13258-13271. [PMID: 37869905 DOI: 10.1039/d3cc04171a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2023]
Abstract
Interfacial polymerization is a well-known process to synthesize separation layers for thin film composite membranes at an immiscible organic liquid-aqueous liquid interface. The organic-aqueous interface determines the diffusion dynamics of monomers and the chemical environment for polymerization, exerting a critical influence on the formation of polymer thin films. This review summarizes recent advances in tailoring interfacial polymerization using interfaces beyond the conventional alkane-water interface to achieve high-performance separation films with designed structures. Diverse liquid-liquid interfaces are introduced for synthesizing separation films by adding co-solvents into the organic phase and/or the aqueous phase, respectively, or by replacing one of the liquid phases with other solvents. Innovative liquid-gel and liquid-gas interfaces are then summarized for the synthesis of polymer thin films for separation. Novel strategies to form reaction interfaces, such as spray-coating, are also presented and discussed. In addition, we discuss the details of how a physically or chemically patterned substrate affects interfacial polymerization. Finally, the potential of unconventional interfaces in interfacial polymerization is forecast with both challenges and opportunities.
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Affiliation(s)
- Jia-Hui Xin
- MOE Engineering Research Center of Membrane and Water Treatment, and Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
- The "Belt and Road" Sino-Portugal Joint Lab on Advanced Materials, International Research Center for X Polymers, Zhejiang University, Hangzhou 310027, China
| | - Hong-Yu Fan
- MOE Engineering Research Center of Membrane and Water Treatment, and Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
- The "Belt and Road" Sino-Portugal Joint Lab on Advanced Materials, International Research Center for X Polymers, Zhejiang University, Hangzhou 310027, China
| | - Bian-Bian Guo
- MOE Engineering Research Center of Membrane and Water Treatment, and Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
- The "Belt and Road" Sino-Portugal Joint Lab on Advanced Materials, International Research Center for X Polymers, Zhejiang University, Hangzhou 310027, China
| | - Hao-Cheng Yang
- MOE Engineering Research Center of Membrane and Water Treatment, and Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
- The "Belt and Road" Sino-Portugal Joint Lab on Advanced Materials, International Research Center for X Polymers, Zhejiang University, Hangzhou 310027, China
| | - Cheng-Ye Zhu
- MOE Engineering Research Center of Membrane and Water Treatment, and Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
- The "Belt and Road" Sino-Portugal Joint Lab on Advanced Materials, International Research Center for X Polymers, Zhejiang University, Hangzhou 310027, China
| | - Chao Zhang
- MOE Engineering Research Center of Membrane and Water Treatment, and Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
- The "Belt and Road" Sino-Portugal Joint Lab on Advanced Materials, International Research Center for X Polymers, Zhejiang University, Hangzhou 310027, China
| | - Zhi-Kang Xu
- MOE Engineering Research Center of Membrane and Water Treatment, and Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
- The "Belt and Road" Sino-Portugal Joint Lab on Advanced Materials, International Research Center for X Polymers, Zhejiang University, Hangzhou 310027, China
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21
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Zheng H, Meng X, Wu J, Liu D, Huo S. Photoelectrocatalytic modification of nanofiltration membranes with SrF 2/Ti 3C 2T x to simultaneously enhance heavy metal ions rejection and permeability. CHEMOSPHERE 2023; 342:140152. [PMID: 37714470 DOI: 10.1016/j.chemosphere.2023.140152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 08/30/2023] [Accepted: 09/11/2023] [Indexed: 09/17/2023]
Abstract
Heavy metal pollution can significantly harm water systems and human health. Combining photoelectrocatalytic (PEC) and nanofiltration (NF) membrane separation technologies can effectively remove heavy metal ions from wastewater. In this study, a water bath method was used to form SrF2/Ti3C2Tx (ST) nanoparticles on the surface of polyvinylidene fluoride (PVDF) membranes and an additional polyamide (PA) functional layer was formed at the interface by crosslinking. ST@PA composite NF membranes (STPP) with good photocatalytic performance were obtained. The separation and catalytic properties of the STPP membranes were controlled by the ST content, which modifies the surface structure and properties of the membranes. The membrane with optimal ST crosslinking exhibited a water contact angle of 50.8°, pure water flux of 24.6 L·m-2·h-1·bar-1, and rejection rates of Mn2+, Ni2+, Cu2+, and Zn2+ of 98.8%, 95.3%, 95.7%, and 97.3%, respectively, under PEC-assisted separation with visible light illumination from a Xe lamp (300 W) and an applied voltage (2 V). The STPP membranes showed improved rejection rates of heavy metal ions under PEC-assisted operation. The mechanism for the improved membrane performance under PEC conditions was preliminarily clarified considering the relationship between the photocatalytic and filtration properties of STPP membranes along with the influence of light irradiation and an external voltage on the heavy metal ions. The generation of electrons, holes, superoxide radicals, and hydroxyl radicals during membrane operation enhances the rejection rates of heavy metal ions. Based on these results, STPP membranes are considered a promising technology for industrial applications in heavy metal removal.
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Affiliation(s)
- Huiqi Zheng
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Xiaorong Meng
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Key Laboratory of Membrane Separation of Shaanxi Province, Xi'an University of Architecture and Technology, Xi'an 710055, China.
| | - Jiao Wu
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Danghao Liu
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Shanshan Huo
- Research Institute of Membrane Separation Technology of Shaanxi Province Co., Ltd, Xi'an 710055, China
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22
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Zhang Y, Wang H, Guo J, Cheng X, Han G, Lau CH, Lin H, Liu S, Ma J, Shao L. Ice-confined synthesis of highly ionized 3D-quasilayered polyamide nanofiltration membranes. Science 2023; 382:202-206. [PMID: 37824644 DOI: 10.1126/science.adi9531] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 09/01/2023] [Indexed: 10/14/2023]
Abstract
Existing polyamide (PA) membrane synthesis protocols are underpinned by controlling diffusion-dominant liquid-phase reactions that yield subpar spatial architectures and ionization behavior. We report an ice-confined interfacial polymerization strategy to enable the effective kinetic control of the interfacial reaction and thermodynamic manipulation of the hexagonal polytype (Ih) ice phase containing monomers to rationally synthesize a three-dimensional quasilayered PA membrane for nanofiltration. Experiments and molecular simulations confirmed the underlying membrane formation mechanism. Our ice-confined PA nanofiltration membrane features high-density ionized structure and exceptional transport channels, realizing superior water permeance and excellent ion selectivity.
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Affiliation(s)
- Yanqiu Zhang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
- School of Environment, Harbin Institute of Technology, Harbin 150009, China
| | - Hao Wang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Jing Guo
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Xiquan Cheng
- School of Marine Science and Technology, Sino-European Membrane Technology Research Institute, Harbin Institute of Technology, Weihai 264209, China
| | - Gang Han
- College of Environmental Science and Engineering, Nankai University, Jinnan District, Tianjin 300350, China
| | - Cher Hon Lau
- School of Engineering, The University of Edinburgh, Edinburgh EH9 3JL, UK
| | - Haiqing Lin
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA
| | - Shaomin Liu
- WA School of Mines: Minerals, Energy and Chemical Engineering, Curtin University Perth, Perth, Western Australia
| | - Jun Ma
- School of Environment, Harbin Institute of Technology, Harbin 150009, China
| | - Lu Shao
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
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23
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Fan L, Wang Y, Wen S, Wang T, Xu X, Wang B, Zhang Q. Interfacial Polymerization of Highly Active Thiolated Cyclodextrin for the Fabrication of a Loose Nanofiltration Membrane with a Chlorine-Resistant Poly(thioester) Linkage. ACS APPLIED MATERIALS & INTERFACES 2023; 15:43193-43204. [PMID: 37668232 DOI: 10.1021/acsami.3c09390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/06/2023]
Abstract
Cyclodextrins have been frequently used to fabricate membranes via interfacial polymerization (IP). However, the relatively low reactivity of pristine cyclodextrins often induces a lower cross-linking density and unsatisfactory separation performance. In this work, to introduce a highly active thiolated β-cyclodextrin (CD-SH) monomer into IP progress, we constructed a dense and porous poly(thioester) linkage on a commercial membrane surface with loose nanofiltration by IP of CD-SH and trimesoyl trichloride (TMC) as the monomer in an aqueous phase and organic phase separately for the first time. Furthermore, the reactivity of CD-SH has been fully demonstrated by the two-phase IP aiming at unmodified β-CD, a CD-SH/TMC freestanding membrane with a thicker interfacial layer and a smoother surface, and a PAN/CD-SH membrane with a narrow porous distribution. The composite membrane possessed superior separation performance for a high rejection (83.1-99.6%) of different anionic dyes and a low rejection (<20%) of salts, as well as a high-efficiency sieving ability of dye/dye and dye/salt mixtures. The membrane with a poly(thioester) selective layer could steadily operate in a long-term filtration test and exhibit great stability, chloride-resistance performance, and recyclability.
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Affiliation(s)
- Liyuan Fan
- Key Laboratory of New Membrane Materials, Ministry of Industry and Information Technology, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
- Institute of Polymer Ecomaterials, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
| | - Yan Wang
- Key Laboratory of New Membrane Materials, Ministry of Industry and Information Technology, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
- Institute of Polymer Ecomaterials, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
| | - Shaobin Wen
- Key Laboratory of New Membrane Materials, Ministry of Industry and Information Technology, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
- Institute of Polymer Ecomaterials, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
| | - Tianheng Wang
- Key Laboratory of New Membrane Materials, Ministry of Industry and Information Technology, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
- Institute of Polymer Ecomaterials, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
| | - Xiaoling Xu
- Key Laboratory of New Membrane Materials, Ministry of Industry and Information Technology, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
- Institute of Polymer Ecomaterials, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
| | - Bingyu Wang
- Key Laboratory of New Membrane Materials, Ministry of Industry and Information Technology, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
- Institute of Polymer Ecomaterials, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
| | - Qiang Zhang
- Key Laboratory of New Membrane Materials, Ministry of Industry and Information Technology, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
- Institute of Polymer Ecomaterials, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
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24
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Akbar Heidari A, Mahdavi H. Recent Advances in the Support Layer, Interlayer and Active Layer of TFC and TFN Organic Solvent Nanofiltration (OSN) Membranes: A Review. CHEM REC 2023:e202300189. [PMID: 37642266 DOI: 10.1002/tcr.202300189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 07/28/2023] [Indexed: 08/31/2023]
Abstract
Although separation of solutes from organic solutions is considered a challenging process, it is inevitable in various chemical, petrochemical and pharmaceutical industries. OSN membranes are the heart of OSN technology that are widely utilized to separate various solutes and contaminants from organic solvents, which is now considered an emerging field. Hence, numerous studies have been attracted to this field to manufacture novel membranes with outstanding properties. Thin-film composite (TFC) and nanocomposite (TFN) membranes are two different classes of membranes that have been recently utilized for this purpose. TFC and TFN membranes are made up of similar layers, and the difference is the use of various nanoparticles in TFN membranes, which are classified into two types of porous and nonporous ones, for enhancing the permeate flux. This study aims to review recent advances in TFC and TFN membranes fabricated for organic solvent nanofiltration (OSN) applications. Here, we will first study the materials used to fabricate the support layer, not only the membranes which are not stable in organic solvents and require to be cross-linked, but also those which are inherently stable in harsh media and do not need any cross-linking step, and all of their advantages and disadvantages. Then, we will study the effects of fabricating different interlayers on the performance of the membranes, and the mechanisms of introducing an interlayer in the regulation of the PA structure. At the final step, we will study the type of monomers utilized for the fabrication of the active layer, the effect of surfactants in reducing the tension between the monomers and the membrane surface, and the type of nanoparticles used in the active layer of TFN membranes and their effects in enhancing the membrane separation performance.
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Affiliation(s)
- Ali Akbar Heidari
- School of Chemistry, College of Science, University of Tehran, 1417614411, Tehran, Iran E-mail: addresses
| | - Hossein Mahdavi
- School of Chemistry, College of Science, University of Tehran, 1417614411, Tehran, Iran E-mail: addresses
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25
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Zhang Q, Zhou R, Peng X, Li N, Dai Z. Development of Support Layers and Their Impact on the Performance of Thin Film Composite Membranes (TFC) for Water Treatment. Polymers (Basel) 2023; 15:3290. [PMID: 37571184 PMCID: PMC10422403 DOI: 10.3390/polym15153290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/30/2023] [Accepted: 07/31/2023] [Indexed: 08/13/2023] Open
Abstract
Thin-film composite (TFC) membranes have gained significant attention as an appealing membrane technology due to their reversible fouling and potential cost-effectiveness. Previous studies have predominantly focused on improving the selective layers to enhance membrane performance. However, the importance of improving the support layers has been increasingly recognized. Therefore, in this review, preparation methods for the support layer, including the traditional phase inversion method and the electrospinning (ES) method, as well as the construction methods for the support layer with a polyamide (PA) layer, are analyzed. Furthermore, the effect of the support layers on the performance of the TFC membrane is presented. This review aims to encourage the exploration of suitable support membranes to enhance the performance of TFC membranes and extend their future applications.
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Affiliation(s)
- Qing Zhang
- School of Chemical Engineering and Technology, Tiangong University, Tianjin 300387, China
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin 300387, China
| | - Rui Zhou
- School of Chemical Engineering and Technology, Tiangong University, Tianjin 300387, China
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin 300387, China
| | - Xue Peng
- School of Chemical Engineering and Technology, Tiangong University, Tianjin 300387, China
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin 300387, China
| | - Nan Li
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin 300387, China
- School of Chemistry, Tiangong University, Tianjin 300387, China
| | - Zhao Dai
- School of Chemical Engineering and Technology, Tiangong University, Tianjin 300387, China
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin 300387, China
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26
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Wang D, Zhang T, Guo X, Ling D, Hu L, Jiang G. The potential of 3D printing in facilitating carbon neutrality. J Environ Sci (China) 2023; 130:85-91. [PMID: 37032045 DOI: 10.1016/j.jes.2022.10.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/14/2022] [Accepted: 10/16/2022] [Indexed: 06/19/2023]
Abstract
At present, dramatically reduction of fossil fuel usage is regarded as a major initiative to achieve the carbon neutrality goal. Nevertheless, current energy policies are unlikely to achieve the climate goal without sacrificing economic development and people's livelihood because fossil fuels are currently the dominant energy source. As an environment-friendly manufacturing technology, three-dimensional printing (3DP) is flourishing and is considered beneficial to energy structure adjustment and industrial upgrading. Despite this, its potential to contribute to global carbon neutrality has not attracted enough attention. Herein, we explore the application of 3DP and its potential facilitating carbon neutrality from crucial sectors and applications including manufacturing, construction energy, livestock, and carbon capture and storage (CCS) technologies. The additive manufacturing and decentralized manufacturing characteristics of 3DP allow reducing greenhouse gas (GHG) emissions in manufacturing and construction sectors by optimized and lightweight designs, reduced material and energy consumption, and shortened transport processes. In addition, 3DP enables the precise manufacturing of customized complex structures and the expansion of functional materials, which makes 3DP an innovative alternative to the development of novel energy-related devices, cultured meat production technology, and CCS technologies. Despite this, the majority of applications of 3DP are still in an early stage and need further exploration. We call for further research to precisely evaluate the GHG emission reduction potential of 3DP and to make it better involved and deployed to better achieve carbon neutrality.
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Affiliation(s)
- Dingyi Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Tingting Zhang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - Xudong Guo
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - Dayi Ling
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - Ligang Hu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China; School of Environment and Health, Jianghan University, Wuhan 430056, China.
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
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27
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Nguyen DT, Lee S, Lopez KP, Lee J, Straub AP. Pressure-driven distillation using air-trapping membranes for fast and selective water purification. SCIENCE ADVANCES 2023; 9:eadg6638. [PMID: 37450594 PMCID: PMC10348675 DOI: 10.1126/sciadv.adg6638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 06/14/2023] [Indexed: 07/18/2023]
Abstract
Membrane technologies that enable the efficient purification of impaired water sources are needed to address growing water scarcity. However, state-of-the-art engineered membranes are constrained by a universal, deleterious trade-off where membranes with high water permeability lack selectivity. Current membranes also poorly remove low-molecular weight neutral solutes and are vulnerable to degradation from oxidants used in water treatment. We report a water desalination technology that uses applied pressure to drive vapor transport through membranes with an entrapped air layer. Since separation occurs due to a gas-liquid phase change, near-complete rejection of dissolved solutes including sodium chloride, boron, urea, and N-nitrosodimethylamine is observed. Membranes fabricated with sub-200-nm-thick air layers showed water permeabilities that exceed those of commercial membranes without sacrificing salt rejection. We also find the air-trapping membranes tolerate exposure to chlorine and ozone oxidants. The results advance our understanding of evaporation behavior and facilitate high-throughput ultraselective separations.
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Affiliation(s)
- Duong T. Nguyen
- Department of Civil, Environmental, and Architectural Engineering, University of Colorado Boulder, Boulder, CO 80309, USA
| | - Sangsuk Lee
- Department of Civil, Environmental, and Architectural Engineering, University of Colorado Boulder, Boulder, CO 80309, USA
| | - Kian P. Lopez
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, CO 80309, USA
| | - Jongho Lee
- Department of Civil Engineering, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada
| | - Anthony P. Straub
- Department of Civil, Environmental, and Architectural Engineering, University of Colorado Boulder, Boulder, CO 80309, USA
- Materials Science and Engineering Program, University of Colorado Boulder, Boulder, CO 80309, USA
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28
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Swain A, Adarsh S, Biswas A, Bose S, Benicewicz BC, Kumar SK, Basu JK. Enhanced efficiency of water desalination in nanostructured thin-film membranes with polymer grafted nanoparticles. NANOSCALE 2023. [PMID: 37366152 DOI: 10.1039/d3nr00777d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
Polyamide composite (PA-TFC) membranes are the state-of-the-art ubiquitous platforms to desalinate water at scale. We have developed a novel, transformative platform where the performance of such membranes is significantly and controllably improved by depositing thin films of polymethylacrylate [PMA] grafted silica nanoparticles (PGNPs) through the venerable Langmuir-Blodgett method. Our key practically important finding is that these constructs can have unprecedented selectivity values (i.e., ∼250-3000 bar-1, >99.0% salt rejection) at reduced feed water pressure (i.e., reduced cost) while maintaining acceptable water permeance A (= 2-5 L m-2 h-1 Bar-1) with as little as 5-7 PGNP layers. We also observe that the transport of solvent and solute are governed by different mechanisms, unlike gas transport, leading to independent control of A and selectivity. Since these membranes can be formulated using simple and low cost self-assembly methods, our work opens a new direction towards development of affordable, scalable water desalination methods.
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Affiliation(s)
- Aparna Swain
- Department of Physics, Indian Institute of Science Bangalore, 560012, India.
| | - S Adarsh
- Department of Physics, Indian Institute of Science Bangalore, 560012, India.
| | - Ashish Biswas
- Department of Physics, Indian Institute of Science Bangalore, 560012, India.
| | - Suryasarathi Bose
- Department of Materials Engineering, Indian Institute of Science Bangalore, 560012, Karnataka, India
| | - Brian C Benicewicz
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, 29208, South Carolina, USA
| | - Sanat K Kumar
- Department of Chemical Engineering, Columbia University, New York, 10027, New York, USA
| | - J K Basu
- Department of Physics, Indian Institute of Science Bangalore, 560012, India.
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29
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Chazot CAC, Creighton MA, Hart AJ. Interfacial Photopolymerization: A Method for Light-Based Printing of Thermoplastics. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37311094 DOI: 10.1021/acsami.3c04803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Ultraviolet (UV) printing of photopolymers is a widely adopted manufacturing method because of its high resolution and throughput. However, available printable photopolymers are typically thermosets, resulting in challenges in postprocessing and recycling of printed structures. Here, we present a new process called interfacial photopolymerization (IPP) which enables photopolymerization printing of linear chain polymers. In IPP, a polymer film is formed at the interface between two immiscible liquids, one containing a chain-growth monomer and the other containing a photoinitiator. We demonstrate the integration of IPP in a proof-of-concept projection system for printing of polyacrylonitrile (PAN) films and rudimentary multi-layer shapes . IPP shows in-plane and out-of-plane resolutions comparable to conventional photoprinting methods. Cohesive PAN films with number-average molecular weights greater than 15 kg mol-1 are obtained, and to our knowledge this is the first report of photopolymerization printing of PAN. A macrokinetics model of IPP is developed to elucidate the transport and reaction rates involved and evaluate how reaction parameters affect film thickness and print speed. Last, demonstration of IPP in a multilayer scheme suggests its suitabiliy for three-dimensional printing of linear-chain polymers.
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Affiliation(s)
- Cécile A C Chazot
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
- Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Megan A Creighton
- Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
- Department of Chemical and Biological Engineering, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania 19104, United States
| | - A John Hart
- Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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30
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Park SJ, Lee MS, Kilic ME, Ryu J, Park H, Park YI, Kim H, Lee KR, Lee JH. Autonomous Interfacial Assembly of Polymer Nanofilms via Surfactant-Regulated Marangoni Instability. NANO LETTERS 2023. [PMID: 37256774 DOI: 10.1021/acs.nanolett.3c00374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Interfacial polymerization (IP) provides a versatile platform for fabricating defect-free functional nanofilms for various applications, including molecular separation, energy, electronics, and biomedical materials. Unfortunately, coupled with complex natural instability phenomena, the IP mechanism and key parameters underlying the structural evolution of nanofilms, especially in the presence of surfactants as an interface regulator, remain puzzling. Here, we interfacially assembled polymer nanofilm membranes at the free water-oil interface in the presence of differently charged surfactants and comprehensively characterized their structure and properties. Combined with computational simulations, an in situ visualization of interfacial film formation discovered the critical role of Marangoni instability induced by the surfactants via various mechanisms in structurally regulating the nanofilms. Despite their different instability-triggering mechanisms, the delicate control of the surfactants enabled the fabrication of defect-free, ultra-permselective nanofilm membranes. Our study identifies critical IP parameters that allow us to rationally design nanofilms, coatings, and membranes for target applications.
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Affiliation(s)
- Sung-Joon Park
- Department of Chemical and Biological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Myung-Seok Lee
- Department of Chemical and Biological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Mehmet Emin Kilic
- Computational Science Research Center, Korea Institute of Science and Technology, 66 Hoegi-ro, Dongdaemun-gu, Seoul 02792, Republic of Korea
| | - Junil Ryu
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Hosik Park
- Green Carbon Research Center, Chemical and Process Technology Division, Korea Research Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Republic of Korea
| | - You In Park
- Green Carbon Research Center, Chemical and Process Technology Division, Korea Research Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Republic of Korea
| | - Hyoungsoo Kim
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Kwang-Ryeol Lee
- Computational Science Research Center, Korea Institute of Science and Technology, 66 Hoegi-ro, Dongdaemun-gu, Seoul 02792, Republic of Korea
- On leave at the Department of Chemistry, Uppsala University, Uppsala, 75105, Sweden
| | - Jung-Hyun Lee
- Department of Chemical and Biological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
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31
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Alkandari SH, Lightfoot J, Castro-Dominguez B. Asymmetric membranes for gas separation: interfacial insights and manufacturing. RSC Adv 2023; 13:14198-14209. [PMID: 37180016 PMCID: PMC10170239 DOI: 10.1039/d3ra00995e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023] Open
Abstract
State-of-the-art gas separation membrane technologies combine the properties of polymers and other materials, such as metal-organic frameworks to yield mixed matrix membranes (MMM). Although, these membranes display an enhanced gas separation performance, when compared to pure polymer membranes; major challenges remain in their structure including, surface defects, uneven filler dispersion and incompatibility of constituting materials. Therefore, to avoid these structural issues posed by today's membrane manufacturing methodologies, we employed electrohydrodynamic emission and solution casting as a hybrid membrane manufacturing method, to produce ZIF-67/cellulose acetate asymmetric membranes with improved gas permeability and selectivity for CO2/N2, CO2/CH4, and O2/N2. Rigorous molecular simulations were used to reveal the key ZIF-67/cellulose acetate interfacial phenomena (e.g., higher density, chain rigidity, etc.) that must be considered when engineering optimum composite membranes. In particular, we demonstrated that the asymmetric configuration effectively leverages these interfacial features to generate membranes superior to MMM. These insights coupled with the proposed manufacturing technique can accelerate the deployment of membranes in sustainable processes such as carbon capture, hydrogen production, and natural gas upgrading.
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Affiliation(s)
- Sharifah H Alkandari
- Centre for Advanced Separations Engineering, Department of Chemical Engineering, University of Bath Bath BA2 7AY UK +44 (0)1225384946
| | - Jasmine Lightfoot
- Centre for Advanced Separations Engineering, Department of Chemical Engineering, University of Bath Bath BA2 7AY UK +44 (0)1225384946
| | - Bernardo Castro-Dominguez
- Centre for Advanced Separations Engineering, Department of Chemical Engineering, University of Bath Bath BA2 7AY UK +44 (0)1225384946
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Bai Y, Liu B, Li J, Li M, Yao Z, Dong L, Rao D, Zhang P, Cao X, Villalobos LF, Zhang C, An QF, Elimelech M. Microstructure optimization of bioderived polyester nanofilms for antibiotic desalination via nanofiltration. SCIENCE ADVANCES 2023; 9:eadg6134. [PMID: 37146143 PMCID: PMC10162667 DOI: 10.1126/sciadv.adg6134] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
The successful implementation of thin-film composite membranes (TFCM) for challenging solute-solute separations in the pharmaceutical industry requires a fine control over the microstructure (size, distribution, and connectivity of the free-volume elements) and thickness of the selective layer. For example, desalinating antibiotic streams requires highly interconnected free-volume elements of the right size to block antibiotics but allow the passage of salt ions and water. Here, we introduce stevioside, a plant-derived contorted glycoside, as a promising aqueous phase monomer for optimizing the microstructure of TFCM made via interfacial polymerization. The low diffusion rate and moderate reactivity of stevioside, together with its nonplanar and distorted conformation, produced thin selective layers with an ideal microporosity for antibiotic desalination. For example, an optimized 18-nm membrane exhibited an unprecedented combination of high water permeance (81.2 liter m-2 hour-1 bar-1), antibiotic desalination efficiency (NaCl/tetracycline separation factor of 11.4), antifouling performance, and chlorine resistance.
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Affiliation(s)
- Yunxiang Bai
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi 214122, P. R. China
| | - Beibei Liu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi 214122, P. R. China
| | - Jiachen Li
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Minghui Li
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi 214122, P. R. China
| | - Zheng Yao
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi 214122, P. R. China
| | - Liangliang Dong
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi 214122, P. R. China
| | - Dewei Rao
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Peng Zhang
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Xingzhong Cao
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P. R. China
| | | | - Chunfang Zhang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi 214122, P. R. China
| | - Quan-Fu An
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Environmental and Chemical Engineering, Beijing University of Technology, 100124, Beijing, China
| | - Menachem Elimelech
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, USA
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He M, Feng L, Cui Q, Li Y, Wang J, Zhu J, Wang L, Wang X, Miao R. Forward osmosis membrane doped with water-based zirconium fumarate MOFs to enhance dye pollutant removal and membrane antifouling performance. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:61018-61031. [PMID: 37046161 DOI: 10.1007/s11356-023-26670-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 03/23/2023] [Indexed: 05/10/2023]
Abstract
Metal-organic frameworks (MOFs) can be applied to enhance the property of forward osmosis membranes. However, organic solvents can easily remain in organic synthetic metal-organic frame materials and cause membrane fouling and a decrease in membrane permeability. In this study, water-based Zr-fumarate MOFs were synthesized and doped into the membrane active layer by interfacial polymerization to provide a water-based MOF-doped thin-film composite membrane (TFC membrane). It was found that doping the water-based MOFs effectively improved membrane hydrophilicity, and nanowater passages were introduced in the active layer to improve permeability. The water flux of the water-based MOF-doped TFC membranes was increased by 21% over that of the original membrane, and the selectivity performance of the membrane was improved while keeping the salt rejection basically unchanged. Additionally, the water-based MOF-doped TFC membrane showed good removal efficiency (Rd > 94%) and strong antipollution performance in the treatment of dye pollutants.
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Affiliation(s)
- Miaolu He
- School of Environmental & Municipal Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
- Key Laboratory of Membrane Separation of Shaanxi Province, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
- Key Laboratory of Northwest Water Resources, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
- Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
| | - Leihao Feng
- School of Environmental & Municipal Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
- Key Laboratory of Membrane Separation of Shaanxi Province, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
| | - Qi Cui
- School of Environmental & Municipal Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
- Key Laboratory of Membrane Separation of Shaanxi Province, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
| | - Yushuang Li
- School of Environmental & Municipal Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
- Key Laboratory of Membrane Separation of Shaanxi Province, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
| | - Jiaqi Wang
- School of Environmental & Municipal Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
- Key Laboratory of Membrane Separation of Shaanxi Province, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
| | - Jiani Zhu
- School of Environmental & Municipal Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
- Key Laboratory of Membrane Separation of Shaanxi Province, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
| | - Lei Wang
- School of Environmental & Municipal Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China.
- Key Laboratory of Membrane Separation of Shaanxi Province, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China.
- Key Laboratory of Northwest Water Resources, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China.
- Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China.
| | - Xudong Wang
- School of Environmental & Municipal Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
- Key Laboratory of Membrane Separation of Shaanxi Province, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
- Key Laboratory of Northwest Water Resources, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
- Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
| | - Rui Miao
- School of Environmental & Municipal Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
- Key Laboratory of Membrane Separation of Shaanxi Province, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
- Key Laboratory of Northwest Water Resources, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
- Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
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Zhu Y, Gui L, Wang R, Wang Y, Fang W, Elimelech M, Lin S, Jin J. Regulation of molecular transport in polymer membranes with voltage-controlled pore size at the angstrom scale. Nat Commun 2023; 14:2373. [PMID: 37185940 PMCID: PMC10130050 DOI: 10.1038/s41467-023-38114-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Accepted: 04/13/2023] [Indexed: 05/17/2023] Open
Abstract
Polymer membranes have been used extensively for Angstrom-scale separation of solutes and molecules. However, the pore size of most polymer membranes has been considered an intrinsic membrane property that cannot be adjusted in operation by applied stimuli. In this work, we show that the pore size of an electrically conductive polyamide membrane can be modulated by an applied voltage in the presence of electrolyte via a mechanism called electrically induced osmotic swelling. Under applied voltage, the highly charged polyamide layer concentrates counter ions in the polymer network via Donnan equilibrium and creates a sizeable osmotic pressure to enlarge the free volume and the effective pore size. The relation between membrane potential and pore size can be quantitatively described using the extended Flory-Rehner theory with Donnan equilibrium. The ability to regulate pore size via applied voltage enables operando modulation of precise molecular separation in-situ. This study demonstrates the amazing capability of electro-regulation of membrane pore size at the Angstrom scale and unveils an important but previously overlooked mechanism of membrane-water-solute interactions.
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Affiliation(s)
- Yuzhang Zhu
- i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, PR China
| | - Liangliang Gui
- i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, PR China
| | - Ruoyu Wang
- Department of Civil and Environmental Engineering, Vanderbilt University, Nashville, TN, 37235, USA
| | - Yunfeng Wang
- i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, PR China
| | - Wangxi Fang
- i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, PR China
| | - Menachem Elimelech
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, 06520-8286, USA
| | - Shihong Lin
- Department of Civil and Environmental Engineering, Vanderbilt University, Nashville, TN, 37235, USA.
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, 37235, USA.
| | - Jian Jin
- i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, PR China.
- College of Chemistry, Chemical Engineering and Materials Science, Innovation Center for Chemical Science & Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Soochow University, Suzhou, 215123, PR China.
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35
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McCutcheon JR, Mauter MS. Fixing the desalination membrane pipeline. Science 2023; 380:242-244. [PMID: 37079673 DOI: 10.1126/science.ade5313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/22/2023]
Abstract
Materials discovery alone has not translated into lower-cost water treatment.
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Affiliation(s)
- Jeffrey R McCutcheon
- University of Connecticut, Chemical and Biomolecular Engineering, Storrs, CT, USA
| | - Meagan S Mauter
- Stanford University and National Alliance for Water Innovation at Lawrence Berkeley National Laboratory, CA, USA
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36
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Zhou S, Zhou Y, He J, Lai Y, Li Y, Yan W, Zhou Y, Gao C. Generation of Nano-Bubbles by NaHCO 3 for Improving the FO Membrane Performance. MEMBRANES 2023; 13:404. [PMID: 37103831 PMCID: PMC10143354 DOI: 10.3390/membranes13040404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/28/2023] [Accepted: 03/30/2023] [Indexed: 06/19/2023]
Abstract
Thin-film composite (TFC) polyamide membranes have a wide range of applications in forward osmosis, but tuning the water flux remains a significant challenge due to concentration polarization. The generation of nano-sized voids within the polyamide rejection layer can change the roughness of the membrane. In this experiment, the micro-nano structure of the PA rejection layer was adjusted by adding sodium bicarbonate to the aqueous phase to generate nano-bubbles, and the changes of its roughness with the addition of sodium bicarbonate were systematically demonstrated. With the enhanced nano-bubbles, more and more blade-like and band-like features appeared on the PA layer, which could effectively reduce the reverse solute flux of the PA layer and improve the salt rejection of the FO membrane. The increase in roughness raised the area of the membrane surface, which led to a larger area for concentration polarization and reduced the water flux. This experiment demonstrated the variation of roughness and water flux, providing an effective idea for the preparation of high-performance FO membranes.
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37
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Cheng J, Li Z, Bao X, Zhang R, Zhang Z, Hai G, Sun K, Shi W. Retarding the diffusion rate of piperazine through the interface of aqueous/organic phase: Bis-tris propane tuned the trans-state of ultra-low concentration piperazine. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2023.121627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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38
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Gan Q, Wu C, Long L, Peng LE, Yang Z, Guo H, Tang CY. Does Surface Roughness Necessarily Increase the Fouling Propensity of Polyamide Reverse Osmosis Membranes by Humic Acid? ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:2548-2556. [PMID: 36719958 DOI: 10.1021/acs.est.2c07872] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Surface roughness has crucial influence on the fouling propensity of thin film composite (TFC) polyamide reverse osmosis (RO) membranes. A common wisdom is that rougher membranes tend to experience more severe fouling. In this study, we compared the fouling behaviors of a smooth polyamide membrane (RO-s) and a nanovoid-containing rough polyamide membrane (RO-r). Contrary to the traditional belief, we observed more severe fouling for RO-s, which can be ascribed to its uneven flux distribution caused by the "funnel effect". Additional tracer filtration tests using gold nanoparticles revealed a more patchlike particle deposition pattern, confirming the adverse impact of "funnel effect" on membrane water transport. In contrast, the experimentally observed lower fouling propensity of the nanovoid-containing rough membrane can be explained by: (1) the weakened "funnel effect" thanks to the presence of nanovoids, which can regulate the water transport pathway through the membrane and (2) the decreased average localized flux over the membrane surface due to the increased effective filtration area for the nanovoid-induced roughness features. The current study provides fundamental insights into the critical role of surface roughness in membrane fouling, which may have important implications for the future development of high-performance antifouling membranes.
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Affiliation(s)
- Qimao Gan
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong SAR999077, P. R. China
| | - Chenyue Wu
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong SAR999077, P. R. China
| | - Li Long
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong SAR999077, P. R. China
| | - Lu Elfa Peng
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong SAR999077, P. R. China
| | - Zhe Yang
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong SAR999077, P. R. China
| | - Hao Guo
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong SAR999077, P. R. China
| | - Chuyang Y Tang
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong SAR999077, P. R. China
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Wang Y, Wen S, Peng B, Luo X, Liu X, Yang T, Wang B, Zhang Q. Cyclodextrin-based pervaporation membranes for low-temperature seawater desalination. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2023.121527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
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40
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A novel single-scan printing approach for polyamide membranes by electrospray technique on polydopamine pre-coated substrate. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2023.121461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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41
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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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42
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Qing H, Fan S, Liu Y, Li C, Meng J, Yang M, Xiao Z. Thin-Film Composite (TFC) Polydimethylsiloxane (PDMS) Membrane with High Crosslinking Density Fabricated by Coaxial Electrospray for a High Flux. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c03758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Haijie Qing
- School of Chemical Engineering, Sichuan University, 610065Chengdu, China
| | - Senqing Fan
- School of Chemical Engineering, Sichuan University, 610065Chengdu, China
| | - Yangchao Liu
- School of Chemical Engineering, Sichuan University, 610065Chengdu, China
| | - Chuang Li
- School of Chemical Engineering, Sichuan University, 610065Chengdu, China
| | - Jiaxin Meng
- School of Chemical Engineering, Sichuan University, 610065Chengdu, China
| | - Mingxia Yang
- School of Chemical Engineering, Sichuan University, 610065Chengdu, China
| | - Zeyi Xiao
- School of Chemical Engineering, Sichuan University, 610065Chengdu, China
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43
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He Y, Zhang Y, Liang F, Zhu Y, Jin J. Chlorine resistant polyamide desalination membrane prepared via organic-organic interfacial polymerization. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2023.121444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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44
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Ma Z, Ren LF, Ying D, Jia J, Shao J. Dual-layer Janus charged nanofiltration membranes constructed by sequential electrospray polymerization for efficient water softening. CHEMOSPHERE 2023; 310:136929. [PMID: 36273607 DOI: 10.1016/j.chemosphere.2022.136929] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Revised: 10/12/2022] [Accepted: 10/16/2022] [Indexed: 06/16/2023]
Abstract
The separation of hardness ions such as calcium and magnesium from hard water can improve water quality, which is important but technically challenging. Nanofiltration (NF) has attracted much attention because of its efficiency, environmental friendliness and low cost. However, common NF membranes with a singly (either positively or negatively) charged layer have insufficient water softening capacity. In this work, two types of dual-layer Janus charged polyamide NF membranes composed of oppositely charged inner and outer layers were developed for the first time by sequential electrospray polymerization strategy for efficient water softening. The effect of the microstructure of the dually charged barrier layer on the separation performance of divalent salt ions was explored. Detailed mechanistic studies revealed that the microstructure of the outer layer of the barrier layer played a crucial role in the ion separation of the Janus membrane due to its control of the reverse transport of ions. Janus charged polyamide NF membrane with a loose outer layer exhibited better water softening performance (93.6% of hardness removed) compared to the singly charged NF membranes due to the simultaneous dual electrostatic effect and no ion reverse transport confinement. This Janus charged NF membrane also possessed good antifouling performance, mainly due to its negatively charged outer layers. The mechanistic insights gained in this study reveal the huge potential of microstructural design toward high-performance Janus charged NF membranes, and provide important guidance on the future development of high-efficiency water softening NF membranes.
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Affiliation(s)
- Zhongbao Ma
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, Shanghai, PR China
| | - Long-Fei Ren
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, Shanghai, PR China
| | - Diwen Ying
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, Shanghai, PR China
| | - Jinping Jia
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, Shanghai, PR China
| | - Jiahui Shao
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, Shanghai, PR China.
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45
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Chen T, Xu P, Chen X, Wang T, Fu K, Qiu M, Fan Y. High-flux ceramic membrane derived from UV-curable slurry for efficient separation of nanoparticles suspension. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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46
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Xu GR, An ZH, Min-Wang, Ke-Xu, Zhao HL, Liu Q. Polyamide Layer Modulation for PA-TFC Membranes Optimization: Developments, Mechanisms, and Implications. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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47
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Gao F, Liu H, Zhang Y, Liu D, Xie Z, Peng W, Song Y, Hu R, Chen D, Kang J, Xu R, Cao Y, Xiang M. Polyamide membrane with nanoscale stripes and internal voids for high-performance nanofiltration. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2023.121406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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48
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Xue YR, Ma ZY, Liu C, Zhu CY, Wu J, Xu ZK. Polyamide Nanofilms Synthesized by a Sequential Process of Blade Coating – Spraying - Interfacial Polymerization toward Reverse Osmosis. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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49
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Liu J, Abdirahman AA, Wang X, Su Y. Assembly of polyamide nanofilms for nanofiltration membranes with ultra-high desalination performance. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2023.121399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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50
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Ma D, Zhang Z, Xiong S, Zhou J, Wang Y. Additive manufacturing of defect-healing polyamide membranes for fast and robust desalination. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2023.121407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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