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Setiawan O, Huang YH, Abdi ZG, Hung WS, Chung TS. pH-tunable and pH-responsive polybenzimidazole (PBI) nanofiltration membranes for Li+/Mg2+ separation. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2022.121269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Shalygin MG, Kozlova AA, Teplyakov VV. Vapor Phase Separation of Water–Alcohol Mixtures with Industrial Nanofiltration Membrane NaRM. MEMBRANES AND MEMBRANE TECHNOLOGIES 2022. [DOI: 10.1134/s2517751622040084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Electrospinning organic solvent resistant preoxidized poly(acrylonitrile) nanofiber membrane and its properties. Chin J Chem Eng 2022. [DOI: 10.1016/j.cjche.2022.01.030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Optimization of interfacial polymerization to fabricate thin-film composite hollow fiber membranes in modules for brackish water reverse osmosis. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119187] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Askari M, Liang CZ, Choong LT(S, Chung TS. Optimization of TFC-PES hollow fiber membranes for reverse osmosis (RO) and osmotically assisted reverse osmosis (OARO) applications. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119156] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Chen BZ, Ju X, Liu N, Chu CH, Lu JP, Wang C, Sun SP. Pilot-scale fabrication of nanofiltration membranes and spiral-wound modules. Chem Eng Res Des 2020. [DOI: 10.1016/j.cherd.2020.06.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Gao J, Wang KY, Chung TS. Design of nanofiltration (NF) hollow fiber membranes made from functionalized bore fluids containing polyethyleneimine (PEI) for heavy metal removal. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118022] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Mohd Shafie ZMH, Ahmad AL, Low SC, Rode S, Belaissaoui B. Lithium chloride (LiCl)-modified polyethersulfone (PES) substrate surface pore architectures on thin poly(dimethylsiloxane) (PDMS) dense layer formation and the composite membrane's performance in gas separation. RSC Adv 2020; 10:9500-9511. [PMID: 35497224 PMCID: PMC9050143 DOI: 10.1039/d0ra00045k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 02/18/2020] [Indexed: 11/21/2022] Open
Abstract
The use of pore forming agents has been notable for improving the water flux in a water-based separation membrane but are rarely being studied as a methodology to influence the substrate's surface architectures for composite membrane fabrication in gas separation. In this study, the influence of lithium chloride (LiCl) on the surface pore architectures and hence, the gas permeance, has been studied in both bare and composite forms with poly(dimethylsiloxane) (PDMS). 1-4 wt% of LiCl was mixed with the dope solution of PES/NMP in the ratio 0.19 and was casted via the dry-wet phase inversion method. Bare substrates were noted to possess increasingly larger surface pore sizes but at a diminishing surface pore density with maximum surface porosity at 2 wt% LiCl. The permeances were, however, significantly reduced with the increase in the LiCl content from 105 300 to 4300 GPU for N2 gas, presumably due to the thicker skin layer. Nevertheless, the porous surface morphology was confirmed and exhibited Knudsen selectivity with a CO2/N2 selectivity of about 0.8, signifying minimal gas flow resistance by the substrates. Upon coating with a similar amount of thin PDMS layer, the composite permeances retain the same trend with values from 361.9 GPU for 0 wt% LiCl substrates to 68.8 GPU for 4 wt% LiCl substrates for CO2 gas at a consistent selectivity of about 14. As the PDMS layer of the same volumes were used and no significant difference in the coating thickness was noted, the mixed influence of pore intrusion and lateral diffusion is hypothesised at the substrate-coating interface owing to the different surface pore architectures of the substrates.
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Affiliation(s)
- Zulfida Mohamad Hafis Mohd Shafie
- School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia 14300 Nibong Tebal Penang Malaysia .,Laboratoire Réactions & Génie des Procédés (LRGP) (UMR 7274) ENSIC, Université de Lorraine 1 Rue Grandville 54001 Nancy France
| | - Abdul Latif Ahmad
- School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia 14300 Nibong Tebal Penang Malaysia
| | - Siew Chun Low
- School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia 14300 Nibong Tebal Penang Malaysia
| | - Sabine Rode
- Laboratoire Réactions & Génie des Procédés (LRGP) (UMR 7274) ENSIC, Université de Lorraine 1 Rue Grandville 54001 Nancy France
| | - Bouchra Belaissaoui
- Laboratoire Réactions & Génie des Procédés (LRGP) (UMR 7274) ENSIC, Université de Lorraine 1 Rue Grandville 54001 Nancy France
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Liu D, Zhu Z, Zhao Y, Chen Y, Tan Y, Zhang Y. Low pressure modified polyamide 6 membrane for effective fractionation of dyes and NaCl. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 695:133908. [PMID: 31425991 DOI: 10.1016/j.scitotenv.2019.133908] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 07/29/2019] [Accepted: 08/12/2019] [Indexed: 06/10/2023]
Abstract
A co-polymer (SPAA6) of 5-sulfoanthranilic acid (5SAA) and ε-caprolactam was used to prepare membrane through nonsolvent induced phase separation (NIPS) method. The micro-structure of membrane was adjusted by small molecules to improve mechanic strength and performance, involving 7 commercial ionic surfactant and a self-synthesized one, S20. S20 showed the best compatibility with SPAA6, which converted spherical phase into network of strip-like units in micro-structure of membrane. Meanwhile, average pore size of the membrane was narrowed from 4.271 nm to 3.391 nm, tested by BET method. Tensile strength of membrane was improved from 2.5 MPa to 2.9 MPa. Therefore, anionic dyes rejection and membrane stability were both improved. It actually demonstrated that molecular weight distribution of SPAA6 was crucial for micro-structure construction of membrane since S20 was the SPAA6 of low molecular weight. In blend solution filtration test, membrane MS2 (1:2 for S20:SPAA6) displayed 98.22% rejection to Congo Red (CR) acid and 96.18% NaCl permeation under 1 bar. It showed 80.18% rejection to chrome blue K (ABK) and 96.28% NaCl permeation. Both water permeance were higher than 3.5 L·m-2·h-1·bar. Membrane MS2 showed the potential of fractionation of dye and NaCl, which was promising in textile waste water treatment.
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Affiliation(s)
- Dongqing Liu
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Material Science and Engineering, Tianjin Polytechnic University, 300387 Tianjin, China.
| | - Zexian Zhu
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Material Science and Engineering, Tianjin Polytechnic University, 300387 Tianjin, China
| | - Yiping Zhao
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Material Science and Engineering, Tianjin Polytechnic University, 300387 Tianjin, China
| | - Yingbo Chen
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Material Science and Engineering, Tianjin Polytechnic University, 300387 Tianjin, China; Yiwu Huading Nylon Co. Ltd., 322000 Jinhua, Zhejiang, China
| | - Yankun Tan
- Yiwu Huading Nylon Co. Ltd., 322000 Jinhua, Zhejiang, China
| | - Yufeng Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Material Science and Engineering, Tianjin Polytechnic University, 300387 Tianjin, China; School of Environmental and Municipal Engineering, Tianjin Chengjian University, 300384 Tianjin, China
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Sun H, Zhang Y, Li S, Bai Y, Ma J, Shao L. Multifunctional Core-Shell Zwitterionic Nanoparticles To Build Robust, Stable Antifouling Membranes via Magnetic-Controlled Surface Segregation. ACS APPLIED MATERIALS & INTERFACES 2019; 11:35501-35508. [PMID: 31482699 DOI: 10.1021/acsami.9b13862] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Novel multifunctional core-shell nanoparticles (Fe3O4@PSBMA NPs) with magnetic and zwitterionic properties were first synthesized and efficiently incorporated into the poly(vinylidene fluoride) (PVDF) membranes via magnetically controlled surface segregation toward the better water-energy-food nexus. The combination of zwitterionic polymers poly(sulfobetaine methacrylate) (PSBMA) and Fe3O4 particles can improve the compatibility of additives with the PVDF matrix and significantly improve the migration of Fe3O4@PSBMA NPs onto membrane surfaces under magnetic fields during nonsolvent-induced phase separations. The modified membrane with surface-enriched multifunctional zwitterionic NPs had an enhanced water flux (168%, ∼630.5 L m-2 h-1), excellent fouling resistance (∼93.8%), and increased rejection to bovine serum albumin (94.1%). Most importantly, the PVDF/M-Fe3O4@PSBMA membrane had excellent stability under the long-term filtration test for practical water-treatment applications.
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Affiliation(s)
- Hongguang Sun
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering , Harbin Institute of Technology , Harbin 150001 , PR China
| | - Yanqiu Zhang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering , Harbin Institute of Technology , Harbin 150001 , PR China
| | - Songwei Li
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering , Harbin Institute of Technology , Harbin 150001 , PR China
| | - Yongping Bai
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering , Harbin Institute of Technology , Harbin 150001 , PR China
- Wuxi HIT New Material Research Institute Company Limited , Wuxi 214183 , PR China
| | - Jun Ma
- State Key Laboratory of Urban Water Resource and Environment, School of Environment , Harbin Institute of Technology , Harbin 150090 , PR 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, School of Chemistry and Chemical Engineering , Harbin Institute of Technology , Harbin 150001 , PR China
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