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Lu X, Chen C, Lin H, Zeng Q, Du J, Han L, Teng J, Yu W, Xu Y, Shen L. Durable Nano-Flower Structured Foam Coupled with Electrically-Driven in Situ Aeration Enable High-Flux Oil/Water Emulsion Separation with Dynamic Antifouling Ability. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2400205. [PMID: 38676331 DOI: 10.1002/smll.202400205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 04/12/2024] [Indexed: 04/28/2024]
Abstract
The conventional membranes used for separating oil/water emulsions are typically limited by the properties of the membrane materials and the impact of membrane fouling, making continuous long-term usage unachievable. In this study, a filtering electrode with synchronous self-cleaning functionality is devised, exhibiting notable antifouling ability and an extended operational lifespan, suitable for the continuous separation of oil/water emulsions. Compared with the original Ti foam, the in situ growth of NiTi-LDH (Layered double hydroxide) nano-flowers endows the modified Ti foam (NiTi-LDH/TF) with exceptional superhydrophilicity and underwater superoleophobicity. Driven by gravity, a rejection rate of over 99% is achieved for various emulsions containing oil content ranging from 1% to 50%, as well as oil/seawater emulsions. The flux recovery rate exceeds 90% after one hundred cycles and a 4-h filtration period. The enhanced separation performance is realized through the "gas bridge" effect during in situ aeration and electrochemical anodic oxidation. The internal aeration within the membrane pores contributes to the removal of oil foulants. This study underscores the potential of coupling foam metal filtration materials with electrochemical technology, providing a paradigm for the exploration of novel oil/water separation membranes.
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Affiliation(s)
- Xinchun Lu
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
- Key Laboratory of Watershed Earth Surface Processes and Ecological Security, Zhejiang Normal University, Jinhua, 321004, China
| | - Cheng Chen
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
- Key Laboratory of Watershed Earth Surface Processes and Ecological Security, Zhejiang Normal University, Jinhua, 321004, China
| | - Hongjun Lin
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
- Key Laboratory of Watershed Earth Surface Processes and Ecological Security, Zhejiang Normal University, Jinhua, 321004, China
| | - Qianqian Zeng
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
- Key Laboratory of Watershed Earth Surface Processes and Ecological Security, Zhejiang Normal University, Jinhua, 321004, China
| | - Jiarong Du
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
- Key Laboratory of Watershed Earth Surface Processes and Ecological Security, Zhejiang Normal University, Jinhua, 321004, China
| | - Lei Han
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
- Key Laboratory of Watershed Earth Surface Processes and Ecological Security, Zhejiang Normal University, Jinhua, 321004, China
| | - Jiaheng Teng
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
- Key Laboratory of Watershed Earth Surface Processes and Ecological Security, Zhejiang Normal University, Jinhua, 321004, China
| | - Wei Yu
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
- Key Laboratory of Watershed Earth Surface Processes and Ecological Security, Zhejiang Normal University, Jinhua, 321004, China
| | - Yanchao Xu
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
- Key Laboratory of Watershed Earth Surface Processes and Ecological Security, Zhejiang Normal University, Jinhua, 321004, China
| | - Liguo Shen
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
- Key Laboratory of Watershed Earth Surface Processes and Ecological Security, Zhejiang Normal University, Jinhua, 321004, China
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Liao Z, Wang Q, Zhou Q, Cui Z, Wang Z, Drioli E. Preparation, Modification, and Application of Ethylene-Chlorotrifluoroethylene Copolymer Membranes. MEMBRANES 2024; 14:42. [PMID: 38392669 PMCID: PMC10890635 DOI: 10.3390/membranes14020042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 01/23/2024] [Accepted: 01/30/2024] [Indexed: 02/24/2024]
Abstract
Ethylene-chlorotrifluoroethylene (ECTFE) was first commercialized by DuPont in 1974. Its unique chemical structure gives it high heat resistance, mechanical strength, and corrosion resistance. But also due to these properties, it is difficult to prepare a membrane from it by the nonsolvent-induced phase separation (NIPS) method. However, it can be prepared as a microfiltration membrane using the thermally induced phase separation (TIPS) method at certain temperatures and with the selection of suitable solvents, and the use of green solvents is receiving increasing attention from researchers. The surface wettability of ECTFE membranes usually needs to be modified before use to strengthen its performance to meet the application requirements, usually by graft modification and surface oxidation techniques. This paper provides an overview of the structure of ECTFE and its preparation and modification methods, as well as recent advances in its application areas and prospects for the future methods of preparing high-performance ECTFE membranes.
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Affiliation(s)
- Zhangbin Liao
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China
- National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, China
| | - Qian Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China
- National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, China
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 211816, China
| | - Qiuyueming Zhou
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China
- National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, China
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 211816, China
| | - Zhaoliang Cui
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China
- National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, China
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 211816, China
| | - Zhaohui Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China
- National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing 210009, China
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 211816, China
| | - Enrico Drioli
- Research Institute on Membrane Technology, ITM-CNR, Via Pietro Bucci 17/C, 87036 Rende, Italy
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Wei C, Wang CL, Hao YJ, Zhang X, Long JS, Lang WZ. Nature-inspired construction of poly (vinylidene fluoride) membranes through the coordination coating of tannic acid with copper ions for oil-in-water emulsions separation. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2023.121367] [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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Alias NH, Aziz MHA, Adam MR, Aizudin M, Ang EH. Polymeric/ceramic membranes for water reuse. RESOURCE RECOVERY IN DRINKING WATER TREATMENT 2023:65-92. [DOI: 10.1016/b978-0-323-99344-9.00005-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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5
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Zou D, Hu C, Drioli E, Zhong Z. Engineering green and high-flux poly(vinylidene fluoride) membranes for membrane distillation via a facile co-casting process. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120577] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Yang B, Wang S, Ding M, Wang C, Lv C, Wang Y, Yang Y, Zhang N, Shi Z, Qian J, Xia R, Fang Y. Hierarchical structure and properties of
high‐density
polyethylene (
HDPE
) microporous films fabricated via
thermally‐induced
phase separation (
TIPS
): Effect of presence of
ultra‐high
molecular weight polyethylene (
UHMWPE
). POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Bin Yang
- School of Chemistry & Chemical Engineering, Key Laboratory of Environment‐Friendly Polymeric Materials of Anhui Province Anhui University Hefei Anhui People's Republic of China
- Anhui Zhongding Sealing Parts Co., Ltd., Key Laboratory of High‐Performance Rubber and Products of Anhui Province Ningguo Anhui China
| | - Shun Wang
- School of Chemistry & Chemical Engineering, Key Laboratory of Environment‐Friendly Polymeric Materials of Anhui Province Anhui University Hefei Anhui People's Republic of China
| | - Mengya Ding
- ChangXin Memory Technologies Co, Ltd. Hefei Anhui People's Republic of China
| | - Chengjun Wang
- School of Chemistry & Chemical Engineering, Key Laboratory of Environment‐Friendly Polymeric Materials of Anhui Province Anhui University Hefei Anhui People's Republic of China
| | - Cheng Lv
- School of Chemistry & Chemical Engineering, Key Laboratory of Environment‐Friendly Polymeric Materials of Anhui Province Anhui University Hefei Anhui People's Republic of China
| | - Yang Wang
- School of Chemistry & Chemical Engineering, Key Laboratory of Environment‐Friendly Polymeric Materials of Anhui Province Anhui University Hefei Anhui People's Republic of China
| | - Yuqing Yang
- School of Chemistry & Chemical Engineering, Key Laboratory of Environment‐Friendly Polymeric Materials of Anhui Province Anhui University Hefei Anhui People's Republic of China
| | - Nuo Zhang
- School of Chemistry & Chemical Engineering, Key Laboratory of Environment‐Friendly Polymeric Materials of Anhui Province Anhui University Hefei Anhui People's Republic of China
| | - Zhiqiang Shi
- School of Chemistry & Chemical Engineering, Key Laboratory of Environment‐Friendly Polymeric Materials of Anhui Province Anhui University Hefei Anhui People's Republic of China
- Anhui Zhongding Sealing Parts Co., Ltd., Key Laboratory of High‐Performance Rubber and Products of Anhui Province Ningguo Anhui China
| | - Jiasheng Qian
- School of Chemistry & Chemical Engineering, Key Laboratory of Environment‐Friendly Polymeric Materials of Anhui Province Anhui University Hefei Anhui People's Republic of China
| | - Ru Xia
- School of Chemistry & Chemical Engineering, Key Laboratory of Environment‐Friendly Polymeric Materials of Anhui Province Anhui University Hefei Anhui People's Republic of China
| | - Yirong Fang
- Longteng Security & Surveillance Technology Co, Ltd. Lu'an Anhui People's Republic of China
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8
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Hierarchically porous membranes with multiple channels: Fabrications in PVDF/PMMA/PLLA blend and enhanced separation performance. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2021.120065] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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9
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Zou D, Kim HW, Jeon SM, Lee YM. Fabrication and modification of PVDF/PSF hollow-fiber membranes for ginseng extract and saline water separations via direct contact membrane distillation. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2021.120101] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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10
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In-situ grown inorganic layer coated PVDF/PSF composite hollow fiber membranes with enhanced separation performance. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119632] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Zhan Y, Zhang G, Feng Q, Yang W, Hu J, Wen X, Liu Y, Zhang S, Sun A. Fabrication of durable super-hydrophilic/underwater super-oleophobic poly(arylene ether nitrile) composite membrane via biomimetic co-deposition for multi-component oily wastewater separation in harsh environments. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126754] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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12
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Liu T, Zhou X, Sun Y, Bai R. Anticorrosion Performance of PVDF Membranes Modified by Blending PTFE Nanoemulsion and Prepared through Usual Non-Solvent-Induced Phase Inversion Method. MEMBRANES 2021; 11:membranes11060420. [PMID: 34073012 PMCID: PMC8228311 DOI: 10.3390/membranes11060420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 05/26/2021] [Accepted: 05/28/2021] [Indexed: 11/23/2022]
Abstract
In this study, PVDF/PTFE composite membranes were prepared by adding a PTFE nanoemulsion to a PVDF solution and casting it through the conventional non-solvent-induced phase separation method. The objective was to explore the effectiveness of using a simple and economical method to modify PVDF membranes with PTFE to enhance their anticorrosion performance, especially under highly acidic or alkaline conditions. PTFE nanoparticles (of around 200 nm in size) in nanoemulsion form were blended with PVDF at a mass ratio of PTFE:PVDF in the range of 0–0.3:1. The obtained membranes were examined to determine the effect of the added PTFE nanoparticles on the structure of the modified PVDF membranes as well as on their mechanical strength and surface characteristics. The membranes were then immersed in various concentrations of acidic or alkaline solutions for varied durations ranging from a few days up to as long as 180 days (6 months). The impacts of by the corrosive solutions on the tensile strength, surface roughness, and water flux of the membranes with different exposure times were quantified. The results showed that although a certain extent of change may occur with extended immersion times, greatly enhanced anticorrosion performance was obtained with the prepared PVDF/PTFE membranes compared with the unmodified PVDF membrane. For example, after being immersed in 5 mol-H+··L−1 H2SO4, HCl, and HNO3 solutions for 6 months, the tensile strength at breaking point remained at up to 69.70, 74.07, and 71.38%, respectively, of the initial strength for the PVDF/PTFE (M30) membrane. This was in contrast to values of only 55.77, 70.43, and 61.78% for the unmodified PVDF membrane (M0). Although the water flux and surface roughness showed a change trends to the tensile strength, the PVDF/PTFE (M30) membrane had much higher stability than the PVDF (M0) membrane. In a continuous filtration experiment containing H2SO4 at 0.01 mol-H+·L−1 for 336 h (14 days), the PVDF/PTFE membrane showed a maximum flux change of less than 30%. This was in comparison with a change of up to 50% for the PVDF membrane. However, the PVDF/PTFE membranes did not seem to have a greatly enhanced anticorrosion performance in the alkaline solution environment tested.
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Affiliation(s)
- Tianshu Liu
- Center for Separation and Purification Materials & Technologies, Suzhou University of Science and Technology, Suzhou 215009, China; (T.L.); (X.Z.); (Y.S.)
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Xiaoji Zhou
- Center for Separation and Purification Materials & Technologies, Suzhou University of Science and Technology, Suzhou 215009, China; (T.L.); (X.Z.); (Y.S.)
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
- Jiangsu Collaborative Innovation Center for Technology and Material of Water Treatment, Suzhou 215009, China
| | - Yizhuo Sun
- Center for Separation and Purification Materials & Technologies, Suzhou University of Science and Technology, Suzhou 215009, China; (T.L.); (X.Z.); (Y.S.)
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Renbi Bai
- Center for Separation and Purification Materials & Technologies, Suzhou University of Science and Technology, Suzhou 215009, China; (T.L.); (X.Z.); (Y.S.)
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
- Jiangsu Collaborative Innovation Center for Technology and Material of Water Treatment, Suzhou 215009, China
- Correspondence: ; Tel.: +86-512-68092987
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Manufacturing and Characterisation of Polymeric Membranes for Water Treatment and Numerical Investigation of Mechanics of Nanocomposite Membranes. Polymers (Basel) 2021; 13:polym13101661. [PMID: 34065285 PMCID: PMC8161102 DOI: 10.3390/polym13101661] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 05/17/2021] [Accepted: 05/18/2021] [Indexed: 12/13/2022] Open
Abstract
In this study, polyethersulfone (PES) and polyvinylidene fluoride (PVDF) microfiltration membranes containing polyvinylpyrrolidone (PVP) with and without support layers of 130 and 150 μm thickness are manufactured using the phase inversion method and then experimentally characterised. For the characterisation of membranes, Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and pore size analysis are performed, the contact angle and water content of membranes are measured and the tensile test is applied to membranes without support layers. Using the results obtained from the tensile tests, the mechanical properties of the halloysite nanotube (HNT) and nano-silicon dioxide (nano SiO2) reinforced nanocomposite membranes are approximately determined by the Mori–Tanaka homogenisation method without applying any further mechanical tests. Then, plain polymeric and PES and PVDF based nanocomposite membranes are modelled using the finite element method to determine the effect of the geometry of the membrane on the mechanical behaviour for fifteen different geometries. The modelled membranes compared in terms of three different criteria: equivalent stress (von Mises), displacement, and in-plane principal strain. Based on the data obtained from the characterisation part of the study and the numerical analysis, the membrane with the best performance is determined. The most appropriate shape and material for a membrane for water treatment is specified as a 1% HNT doped PVDF based elliptical membrane.
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Towards the synthesis of greener membranes: Interest of PVA as porous support for membrane application in gas and liquid separations. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118357] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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Effect of polymer molecular weight on structure and performance of PVDF hollow fiber membranes prepared via TIPS process with co-extrusion of solvent using triple orifice spinneret. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118854] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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Le VT, Almomani F, Vasseghian Y, Vilas–Boas JA, Dragoi EN. Graphene-based nanomaterial for desalination of water: A systematic review and meta-analysis. Food Chem Toxicol 2021; 148:111964. [DOI: 10.1016/j.fct.2020.111964] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 12/23/2020] [Accepted: 12/27/2020] [Indexed: 01/21/2023]
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17
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Yabuno Y, Mihara K, Miyagawa N, Komatsu K, Nakagawa K, Shintani T, Matsuyama H, Yoshioka T. Preparation of polyamide–PVDF composite hollow fiber membranes with well-developed interconnected bicontinuous structure using high-temperature rapid NIPS for forward osmosis. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118468] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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