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Zamani-Babgohari F, Irannejad A, Kalantari Pour M, Khayati GR. Synthesis of carboxymethyl starch co (polyacrylamide/ polyacrylic acid) hydrogel for removing methylene blue dye from aqueous solution. Int J Biol Macromol 2024; 269:132053. [PMID: 38704075 DOI: 10.1016/j.ijbiomac.2024.132053] [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: 01/21/2024] [Revised: 04/13/2024] [Accepted: 05/01/2024] [Indexed: 05/06/2024]
Abstract
Natural polysaccharides, notably starch, have garnered attention for their accessibility, cost-effectiveness, and biodegradability. Modifying starch to carboxymethyl starch enhances its solubility, swelling capacity, and adsorption efficiency. This research examines the synthesis of an effective hydrogel adsorbent based on carboxymethyl starch for the elimination of methylene blue from aqueous solutions. The hydrogel was synthesized using polyacrylamide and polyacrylic acid as monomers, ammonium persulfate as the initiator, and N,N'-methylenebisacrylamide as the cross-linker. Through FESEM, swelling morphology was evaluated in both distilled water and methylene blue dye. The adsorption data elucidated that the adsorption capacity of the hydrogel significantly depends on the dosage of the adsorbent, pH, and concentration of the MB dye. At a pH of 7 and a dye concentration of 250 mg/L, the hydrogel exhibited an impressive 95 % removal rate for methylene blue. The results indicate that the adsorption process follows pseudo-second-order kinetics and conforms well to the Langmuir adsorption isotherm, indicating a maximum adsorption capacity of 1700 mg/g. According to the pseudo-second-order kinetic model and FTIR analysis, methylene blue chemisorbs to the adsorbent material. Hydrogel absorbents regulate adsorption through both intra-particle diffusion and liquid film diffusion. These results highlight the potential of the new hydrogel absorber for water purification.
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Affiliation(s)
- Fatemeh Zamani-Babgohari
- Department of Materials Engineering and Metallurgy, Faculty of Engineering, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Ahmad Irannejad
- Department of Materials Engineering and Metallurgy, Faculty of Engineering, Shahid Bahonar University of Kerman, Kerman, Iran.
| | - Maryam Kalantari Pour
- Department of Chemistry, Faculty of Science, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Gholam Reza Khayati
- Department of Materials Engineering and Metallurgy, Faculty of Engineering, Shahid Bahonar University of Kerman, Kerman, Iran
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2
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Huang T, Su Z, Hou K, Zeng J, Zhou H, Zhang L, Nunes SP. Advanced stimuli-responsive membranes for smart separation. Chem Soc Rev 2023. [PMID: 37184537 DOI: 10.1039/d2cs00911k] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Membranes have been extensively studied and applied in various fields owing to their high energy efficiency and small environmental impact. Further conferring membranes with stimuli responsiveness can allow them to dynamically tune their pore structure and/or surface properties for efficient separation performance. This review summarizes and discusses important developments and achievements in stimuli-responsive membranes. The most commonly utilized stimuli, including light, pH, temperature, ions, and electric and magnetic fields, are discussed in detail. Special attention is given to stimuli-responsive control of membrane pore structure (pore size and porosity/connectivity) and surface properties (wettability, surface topology, and surface charge), from the perspective of determining the appropriate membrane properties and microstructures. This review also focuses on strategies to prepare stimuli-responsive membranes, including blending, casting, polymerization, self-assembly, and electrospinning. Smart applications for separations are also reviewed as well as a discussion of remaining challenges and future prospects in this exciting field. This review offers critical insights for the membrane and broader materials science communities regarding the on-demand and dynamic control of membrane structures and properties. We hope that this review will inspire the design of novel stimuli-responsive membranes to promote sustainable development and make progress toward commercialization.
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Affiliation(s)
- Tiefan Huang
- Functional Membrane Materials Engineering Research Center of Hunan Province, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China.
| | - Zhixin Su
- Functional Membrane Materials Engineering Research Center of Hunan Province, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China.
| | - Kun Hou
- Functional Membrane Materials Engineering Research Center of Hunan Province, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China.
| | - Jianxian Zeng
- Functional Membrane Materials Engineering Research Center of Hunan Province, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China.
| | - Hu Zhou
- Functional Membrane Materials Engineering Research Center of Hunan Province, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China.
| | - Lin Zhang
- Engineering Research Center of Membrane and Water Treatment of MOE, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China.
- Academy of Ecological Civilization, Zhejiang University, Hangzhou, 310058, China
| | - Suzana P Nunes
- King Abdullah University of Science and Technology (KAUST), Nanostructured Polymeric Membranes Laboratory, Advanced Membranes and Porous Materials Center, Biological and Environmental Science and Engineering Division (BESE), Thuwal, 23955-6900, Saudi Arabia.
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3
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Zheng XC, Wu CL, Xiong J, Lei H. UV Photoinitiated Temperature-Sensitive Modification of Polypropylene Grafted with Poly(N-isopropylacrylamide). POLYMER SCIENCE SERIES B 2022. [DOI: 10.1134/s1560090422700415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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4
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Huang D, Gao S, Luo Y, Zhou X, Lu Z, Zou L, Hu K, Zhao Z, Zhang Y. Glucose-sensitive membrane with phenylboronic acid-based contraction-type microgels as chemical valves. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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5
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Ma Y, Chen X, Wang S, Dong H, Zhai X, Shi X, Wang J, Ma R, Zhang W. Significantly enhanced antifouling and separation capabilities of PVDF membrane by synergy of semi-interpenetrating polymer and TiO2 gel nanoparticles. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2021.11.038] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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One-step selective separation and catalytic transformation of an organic pollutant from pollutant mixture via a thermo-responsive semi-IPN/PVDF@Pd bilayer composite membrane. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120493] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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7
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Bandehali S, Parvizian F, Hosseini SM, Matsuura T, Drioli E, Shen J, Moghadassi A, Adeleye AS. Planning of smart gating membranes for water treatment. CHEMOSPHERE 2021; 283:131207. [PMID: 34157628 DOI: 10.1016/j.chemosphere.2021.131207] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 06/09/2021] [Accepted: 06/10/2021] [Indexed: 06/13/2023]
Abstract
The use of membranes in desalination and water treatment has been intensively studied in recent years. The conventional membranes however have various problems such as uncontrollable pore size and membrane properties, which prevents membranes from quickly responding to alteration of operating and environmental conditions. As a result the membranes are fouled, and their separation performance is lowered. The preparation of smart gating membranes inspired by cell membranes is a new method to face these challenges. Introducing stimuli-responsive functional materials into traditional porous membranes and use of hydrogels and microgels can change surface properties and membrane pore sizes under different conditions. This review shows potential of smart gating membranes in water treatment. Various types of stimuli-response such as those of thermo-, pH-, ion-, molecule-, UV light-, magnetic-, redox- and electro-responsive gating membranes along with various gel types such as those of polyelectrolyte, PNIPAM-based, self-healing hydrogels and microgel based-smart gating membranes are discussed. Design strategies, separation mechanisms and challenges in fabrication of smart gating membranes in water treatment are also presented. It is demonstrated that experimental and modeling and simulation results have to be utilized effectively to produce smart gating membranes.
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Affiliation(s)
- Samaneh Bandehali
- Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak, 38156-8-8349, Iran
| | - Fahime Parvizian
- Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak, 38156-8-8349, Iran
| | - Sayed Mohsen Hosseini
- Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak, 38156-8-8349, Iran.
| | - Takeshi Matsuura
- Department of Chemical and Biological Engineering, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada.
| | - Enrico Drioli
- Institute on Membrane Technology, National Research Council of Italy (CNR-ITM), Via P. Bucci 17/C, Rende, CS, 87036, Italy; Department of Environmental and Chemical Engineering, University of Calabria, Via P. Bucci 45A, 87036, Rende, CS, Italy.
| | - Jiangnan Shen
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Abdolreza Moghadassi
- Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak, 38156-8-8349, Iran
| | - Adeyemi S Adeleye
- Department of Civil and Environmental Engineering, University of California, Irvine, CA, 92697-2175, USA
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8
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Hongbo X, Dan L, Suli W, Shuai F, Chao M, Bin D. H 2O- and ethanol concentration-responsive polymer/gel inverse opal photonic crystal. J Colloid Interface Sci 2021; 605:803-812. [PMID: 34371425 DOI: 10.1016/j.jcis.2021.07.112] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 07/19/2021] [Accepted: 07/20/2021] [Indexed: 12/22/2022]
Abstract
Responsive photonic crystals have attracted much attention due to their strong capability to manipulate the propagation of light in the visible region, but it is still a big challenge to invisibility and mechanical stability. Here, the novel Poly(ether sulfone)/Poly(acrylic acid) inverse opal photonic crystals, which have high mechanical stability and can release visible patterns after wetting with water, are discussed. The Poly(ether sulfone)/Poly(acrylic acid) inverse opal photonic crystals are also responsive to the concentration of ethanol, and the structural color response times increase with increasing ethanol concentration. This design uses the selective infiltration, hydrogen bonding and capillary action of solvent to realize the spectral diversity of reflectance. Owing to the high polarity and hydrogen bonding ability of carboxyl groups, water molecules are adsorbed easily by the poly(acrylic acid) gel. Subsequently, the encrypted information is decrypted due to the redshift of the structural color. Because of its lower polarity and hydrogen bonding ability relative to water, ethanol can impede the absorption of solvent by gel. Therefore, the ethanol concentration can be identified based on the structural color response time. Furthermore, reliable information decryption methods make Poly(ether sulfone)/Poly(acrylic acid) inverse opal photonic crystals potentially uesful as trusted encryption devices.
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Affiliation(s)
- Xia Hongbo
- Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission, Key Laboratory of Photosensitive Materials & Devices of Liaoning Province, School of Physics and Materials Engineering, Dalian Minzu University, Dalian 116024, China
| | - Li Dan
- Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission, Key Laboratory of Photosensitive Materials & Devices of Liaoning Province, School of Physics and Materials Engineering, Dalian Minzu University, Dalian 116024, China
| | - Wu Suli
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Feng Shuai
- School of Science, Minzu University of China, Beijing 100081, China.
| | - Meng Chao
- School of Science, Minzu University of China, Beijing 100081, China
| | - Dong Bin
- Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission, Key Laboratory of Photosensitive Materials & Devices of Liaoning Province, School of Physics and Materials Engineering, Dalian Minzu University, Dalian 116024, China.
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10
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Cutright C, Finkelstein R, Orlowski E, McIntosh E, Brotherton Z, Fabiani T, Khan S, Genzer J, Menegatti S. Nonwoven fiber mats with thermo-responsive permeability to inorganic and organic electrolytes. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118439] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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11
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Permeability of N, P, K-fertilizer nutrient and water vapor through PLA, PLA/PS, and PLA/HA membranes. POLISH JOURNAL OF CHEMICAL TECHNOLOGY 2020. [DOI: 10.2478/pjct-2020-0040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
To collect permeability data and establish its database of fertilizer nutrients and water vapor through different polymer membranes for the development of polymer-coated fertilizer, the permeabilities of N-, P-, and K-nutrient from saturated aqueous of urea, NaH2PO4 and KCl solution and the permeability of water vapor through the membranes of poly lactic acid (PLA), its blends with polystyrene (PS), and its composites with humic acid (HA) particles were determined experimentally at the temperatures of 288, 298, and 308 K, respectively. The effects of the addition of PS and HA particles, temperature, and coating thickness on the permeability of fertilizer nutrient and water vapor were investigated. It was found that the addition of PS and HA increased the permeability for both the fertilizer nutrients and water vapor. The increase in temperature raised the permeability of N-, P-, and K-nutrient while decrease the permeability of water vapor in the range studied.
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12
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Hou X, Chen X, Bi S, Li K, Zhang C, Wang J, Zhang W. Catalytic degradation of TCE by a PVDF membrane with Pd-coated nanoscale zero-valent iron reductant. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 702:135030. [PMID: 31715394 DOI: 10.1016/j.scitotenv.2019.135030] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 10/13/2019] [Accepted: 10/16/2019] [Indexed: 06/10/2023]
Abstract
Trichloroethylene (TCE) has serious threat to ecosystem. Fe-Pd nanoparticles (NPs) are good materials for catalytic degradation of TCE but still face severe challenges including easy fouling, agglomeration, deactivation and difficult separation and reuse etc. To overcome these drawbacks, we have constructed a novel structured PVDF/Fe-Pd NPs composite membrane with nanosized surface pores to execute the TCE degradation. Results indicate the degradation shows pseudo first-order reaction kinetics and high degradation rate in the static state degradation. Furthermore, the degradation ability can be enhanced by increasing Fe and Pd contents, the degradation temperature or decreasing the degradation pH value. However, the degradation is essentially limited by the diffusion. Thus, the cross-flow degradation is further applied to promote the diffusion. By this operating model, the degradation ability of the composite membrane can be greatly improved. More importantly, the reactants always keep the purity in the membrane surface side and can be controlled to enter the membrane pore for catalytic degradation. Thus, products can be timely discharged via the membrane pores and the side reactions between reactants and products can be largely reduced. In addition, the nanosized surface pores can also prevent the Fe-Pd NPs from being fouled. In a word, the novel composite membrane shows strong degradation ability, good stability and convenient operating ability for the TEC catalytic degradation.
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Affiliation(s)
- Xiaolu Hou
- State Key Laboratory of Membrane Materials and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, PR China; School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, PR China
| | - Xi Chen
- State Key Laboratory of Membrane Materials and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, PR China; School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, PR China.
| | - Shiyin Bi
- State Key Laboratory of Membrane Materials and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, PR China; School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, PR China
| | - Kun Li
- State Key Laboratory of Membrane Materials and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, PR China; School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, PR China
| | - Chenghao Zhang
- State Key Laboratory of Membrane Materials and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, PR China; School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, PR China
| | - Jianzu Wang
- State Key Laboratory of Membrane Materials and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, PR China; School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, PR China.
| | - Wangqing Zhang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, PR China
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13
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Li B, Chen X, Li K, Zhang C, He Y, Du R, Wang J, Chen L. Coupling membrane and Fe–Pd bimetallic nanoparticles for trichloroethene removing from water. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2019.06.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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14
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Tehrani-Bagha AR. Waterproof breathable layers - A review. Adv Colloid Interface Sci 2019; 268:114-135. [PMID: 31022590 DOI: 10.1016/j.cis.2019.03.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Revised: 01/25/2019] [Accepted: 03/08/2019] [Indexed: 12/31/2022]
Abstract
Waterproof breathable layers (WPBLs) can be classified into two large groups of hydrophilic nonporous and hydrophobic porous layers. These layers (e.g., fabrics, films, membranes, and meshes) can be produced by various continuous and non-continuous processes such as coating, laminating, film stretching, casting, etc. The most common methods for production, characterization, and testing of WPBLs are presented and discussed in light of recent publications. The materials with high level of waterproofness and breathability are often used in outerwear for winter sports, sailing apparel, raincoats, military/police jackets, backpacks, tents, cargo raps, footwear and etc. WPBLs can also be used for other specialized applications such as membrane distillation, oil-water filtration, and wound dressing. These applications are discussed by presenting several good examples. The main challenge in the production of these layers is to compromise between waterproofness and breathability with opposing nature. The related research gaps, challenges, and future outlook are highlighted to shed more light on the topic.
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Liu H, Yang S, Liu Y, Miao M, Zhao Y, Sotto A, Gao C, Shen J. Fabricating a pH-responsive membrane through interfacial in-situ assembly of microgels for water gating and self-cleaning. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.03.010] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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16
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Melvin Ng H, Leo C, Lim TS, Low S, Ooi B. Polishing monoclonal antibody using pH-responsive TiO2/polysulfone membrane in dual size-exclusion strategy. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.12.053] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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17
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Dong L, Xiong Z, Liu X, Sheng D, Zhou Y, Yang Y. Synthesis of carbon quantum dots to fabricate ultraviolet‐shielding poly(vinylidene fluoride) films. J Appl Polym Sci 2019. [DOI: 10.1002/app.47555] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Li Dong
- Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 China
- University of Science and Technology of China Hefei 230026 China
| | - Zhengrong Xiong
- Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 China
| | - Xiangdong Liu
- Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 China
| | - Dekun Sheng
- Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 China
| | - Yan Zhou
- Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 China
- University of Science and Technology of China Hefei 230026 China
| | - Yuming Yang
- Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 China
- University of Science and Technology of China Hefei 230026 China
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18
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Shen S, Hao Y, Zhang Y, Zhang G, Zhou X, Bai RB. Enhancing the Antifouling Properties of Poly(vinylidene fluoride) (PVDF) Membrane through a Novel Blending and Surface-Grafting Modification Approach. ACS OMEGA 2018; 3:17403-17415. [PMID: 31458346 PMCID: PMC6644313 DOI: 10.1021/acsomega.8b02569] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 12/04/2018] [Indexed: 05/18/2023]
Abstract
In this study, poly(vinylidene fluoride) (PVDF) membrane was modified through a novel approach by first blending an active component (poly(vinylidene fluoride-co-chlorotrifluoroethylene), P(VDF-co-CTFE)) with the PVDF base material, followed by surface grafting of the membrane on the active component to obtain a triblock copolymer functional structure. The prepared membranes were characterized by various analyses, including Fourier-transform infrared, X-ray photoelectron spectroscopy, atomic force microscopy, scanning electron microscope, and filtration tests. It was found that the modified membrane surface showed a much better hydrophilicity (water contact angle of 67.3°) and oleophobicity (oil contact angle of 129.7°). The modification reduced the average surface pore size (from 0.1495 to 0.1072 μm) and thus lowered the pure water flux (from 364.0 to 224.6 L m-2 h-1 at 0.10 MPa of transmembrane pressure), but significantly increased the relative flux recovery (RFR) and the retention efficiency of the modified membrane during the filtration of bovine serum albumin solution and oil/water emulsion. For example, the modified membranes showed 98.6% oil retention (at feed concentration of 0.4 g L-1), 92.7% RFR by simple water flushing after filtration, and a consistently high oil removal of 96% or above during a five-cycle-continuous filtration test, as compared to 30.4% oil retention and 51.8% RFR for unmodified PVDF/P(VDF-co-CTFE) blend membrane.
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Affiliation(s)
- Shusu Shen
- Center for Separation and Purification Materials & Technologies, Suzhou University of Science and Technology, 1 Kerui Road, 215009 Suzhou, China
- Suzhou Key Laboratory
of Separation and Purification Materials & Technologies, 1 Kerui Road, 215009 Suzhou, China
- Jiangsu Collaborative Innovation
Center for Technology and Material of Water Treatment, 1 Kerui Road, 215009 Suzhou, China
| | - Yi Hao
- Center for Separation and Purification Materials & Technologies, Suzhou University of Science and Technology, 1 Kerui Road, 215009 Suzhou, China
| | - Yiyuan Zhang
- Center for Separation and Purification Materials & Technologies, Suzhou University of Science and Technology, 1 Kerui Road, 215009 Suzhou, China
| | - Ganwei Zhang
- Center for Separation and Purification Materials & Technologies, Suzhou University of Science and Technology, 1 Kerui Road, 215009 Suzhou, China
| | - Xiaoji Zhou
- Center for Separation and Purification Materials & Technologies, Suzhou University of Science and Technology, 1 Kerui Road, 215009 Suzhou, China
- Suzhou Key Laboratory
of Separation and Purification Materials & Technologies, 1 Kerui Road, 215009 Suzhou, China
- Jiangsu Collaborative Innovation
Center for Technology and Material of Water Treatment, 1 Kerui Road, 215009 Suzhou, China
| | - R. B. Bai
- Center for Separation and Purification Materials & Technologies, Suzhou University of Science and Technology, 1 Kerui Road, 215009 Suzhou, China
- Suzhou Key Laboratory
of Separation and Purification Materials & Technologies, 1 Kerui Road, 215009 Suzhou, China
- Jiangsu Collaborative Innovation
Center for Technology and Material of Water Treatment, 1 Kerui Road, 215009 Suzhou, China
- E-mail:
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Preparation and Characterization of UV-absorbing PVDF Membranes via Pre-irradiation Induced Graft Polymerization. CHINESE JOURNAL OF POLYMER SCIENCE 2018. [DOI: 10.1007/s10118-019-2194-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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20
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Liu H, Liao J, Zhao Y, Sotto A, Zhu J, van der Bruggen B, Gao C, Shen J. Bioinspired dual stimuli-responsive membranes with enhanced gating ratios and reversible performances for water gating. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2018.07.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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21
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Novel low-fouling membranes from lab to pilot application in textile wastewater treatment. J Colloid Interface Sci 2018; 515:208-220. [DOI: 10.1016/j.jcis.2018.01.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 12/22/2017] [Accepted: 01/03/2018] [Indexed: 02/06/2023]
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22
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Wang W, Chen X, Zhao C, Zhao B, Dong H, Ma S, Li L, Chen L, Zhang B. Cross-Flow Catalysis Behavior of a PVDF/SiO₂@Ag Nanoparticles Composite Membrane. Polymers (Basel) 2018; 10:polym10010059. [PMID: 30966093 PMCID: PMC6414846 DOI: 10.3390/polym10010059] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 01/06/2018] [Accepted: 01/06/2018] [Indexed: 11/16/2022] Open
Abstract
A blend of Polyvinylidene Fluoride (PVDF) and SiO₂ microspheres in N,N-Dimethylformamide (DMF) underwent phase inversion to form a PVDF/SiO₂ membrane with SiO₂ microspheres in the membrane's pores. Subsequently, the SiO₂ microspheres have been used as platforms for in site Ag nanoparticles (NPs) synthesis, forming a composite membrane. Benefitting from the full exposure of Ag NPs to the reactants, the composite membrane shows high catalytic reactivity when catalyzing the reduction of p-nitrophenol under a cross-flow. The catalytic reaction follows the first-order kinetics, and the reaction rate increases with an increase in the amount of Ag NPs in the membrane, the reaction temperature, and the operating pressure. What is more, highly purified products can be produced and separated from the reactants in a timely manner by using the composite membrane.
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Affiliation(s)
- Wenqiang Wang
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, China.
- School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, China.
| | - Xi Chen
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, China.
- School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, China.
| | - Chu Zhao
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, China.
- School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, China.
| | - Bowu Zhao
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, China.
- School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, China.
| | - Hualin Dong
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, China.
- School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, China.
| | - Shengkui Ma
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, China.
- School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, China.
| | - Liying Li
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, China.
- School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, China.
| | - Li Chen
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, China.
- School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, China.
| | - Bin Zhang
- Tianjin BeiAo Membrane Co., Ltd., Tianjin 300180, China.
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23
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Ma B, Ju XJ, Luo F, Liu YQ, Wang Y, Liu Z, Wang W, Xie R, Chu LY. Facile Fabrication of Composite Membranes with Dual Thermo- and pH-Responsive Characteristics. ACS APPLIED MATERIALS & INTERFACES 2017; 9:14409-14421. [PMID: 28398718 DOI: 10.1021/acsami.7b02427] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Facile fabrication of novel functional membranes with excellent dual thermo- and pH-responsive characteristics has been achieved by simply designing dual-layer composite membranes. pH-Responsive poly(styrene)-block-poly(4-vinylpyridine) (PS-b-P4VP) block copolymers and polystyrene blended with thermoresponsive poly(N-isopropylacrylamide) (PNIPAM) nanogels are respectively used to construct the top layer and bottom layer of composite membranes. The stretching/coiling conformation changes of the P4VP chains around the pKa (∼3.5-4.5) provide the composite membranes with extraordinary pH-responsive characteristics, and the volume phase transitions of PNIPAM nanogels at the pore/matrix interfaces in the bottom layer around the volume phase transition temperature (VPTT, ∼33 °C) provide the composite membranes with great thermoresponsive characteristics. The microstructures, permeability performances, and dual stimuli-responsive characteristics can be well tuned by adjusting the content of PNIPAM nanogels and the thickness of the PS-b-P4VP top layer. The water fluxes of the composite membranes can be changed in order of magnitude by changing the environment temperature and pH, and the dual thermo- and pH-responsive permeation performances of the composite membranes are satisfactorily reversible and reproducible. The membrane fabrication strategy in this work provides valuable guidance for further development of dual stimuli-responsive membranes or even multi stimuli-responsive membranes.
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Affiliation(s)
- Bing Ma
- School of Chemical Engineering, Sichuan University , No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan 610065, P. R. China
| | - Xiao-Jie Ju
- School of Chemical Engineering, Sichuan University , No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan 610065, P. R. China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu, Sichuan 610065, P. R. China
| | - Feng Luo
- School of Chemical Engineering, Sichuan University , No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan 610065, P. R. China
| | - Yu-Qiong Liu
- School of Chemical Engineering, Sichuan University , No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan 610065, P. R. China
| | - Yuan Wang
- School of Chemical Engineering, Sichuan University , No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan 610065, P. R. China
| | - Zhuang Liu
- School of Chemical Engineering, Sichuan University , No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan 610065, P. R. China
| | - Wei Wang
- School of Chemical Engineering, Sichuan University , No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan 610065, P. R. China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu, Sichuan 610065, P. R. China
| | - Rui Xie
- School of Chemical Engineering, Sichuan University , No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan 610065, P. R. China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu, Sichuan 610065, P. R. China
| | - Liang-Yin Chu
- School of Chemical Engineering, Sichuan University , No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan 610065, P. R. China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu, Sichuan 610065, P. R. China
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , Nanjing, Jiangsu 211816, P. R. China
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24
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Xu L, Ma S, Chen X, Zhao C, Zhao Y, Chen L. A novel poly(vinylidene fluoride) composite membrane for catalysis and separation. POLYM ENG SCI 2017. [DOI: 10.1002/pen.24542] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Liangliang Xu
- Department of Polymer Science, School of Materials Science and Engineering; Tianjin Polytechnic University; Tianjin 300387 People's Republic of China
| | - Shengkui Ma
- Department of Polymer Science, School of Materials Science and Engineering; Tianjin Polytechnic University; Tianjin 300387 People's Republic of China
- State Key Laboratory of Separation Membrane and Membrane Process; Tianjin Polytechnic University; Tianjin 300387 People's Republic of China
| | - Xi Chen
- Department of Polymer Science, School of Materials Science and Engineering; Tianjin Polytechnic University; Tianjin 300387 People's Republic of China
- State Key Laboratory of Separation Membrane and Membrane Process; Tianjin Polytechnic University; Tianjin 300387 People's Republic of China
| | - Chu Zhao
- Department of Polymer Science, School of Materials Science and Engineering; Tianjin Polytechnic University; Tianjin 300387 People's Republic of China
- State Key Laboratory of Separation Membrane and Membrane Process; Tianjin Polytechnic University; Tianjin 300387 People's Republic of China
| | - Yiping Zhao
- Department of Polymer Science, School of Materials Science and Engineering; Tianjin Polytechnic University; Tianjin 300387 People's Republic of China
- State Key Laboratory of Separation Membrane and Membrane Process; Tianjin Polytechnic University; Tianjin 300387 People's Republic of China
| | - Li Chen
- Department of Polymer Science, School of Materials Science and Engineering; Tianjin Polytechnic University; Tianjin 300387 People's Republic of China
- State Key Laboratory of Separation Membrane and Membrane Process; Tianjin Polytechnic University; Tianjin 300387 People's Republic of China
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25
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Bhalani DV, Bera A, Chandel AKS, Kumar SB, Jewrajka SK. Multifunctionalization of Poly(vinylidene fluoride)/Reactive Copolymer Blend Membranes for Broad Spectrum Applications. ACS APPLIED MATERIALS & INTERFACES 2017; 9:3102-3112. [PMID: 28009504 DOI: 10.1021/acsami.6b13235] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Simultaneous immobilization and cross-linking of antifouling/low toxic polymers, e.g., poly(ethylenimine) (PEI), dextran (Dex), agarose (Agr), poly(ethylene glycol) (PEG), PEI-Dex, and PEI-PEG conjugates, and stimuli-responsive copolymers on a porous membrane surface in mild reaction conditions is desirable for the enhancement of hydrophilicity, antifouling character, cytocompatibility, and inducing stimuli-responsive behavior. Grafting to technique is required since the precursors of most of these macromolecules are not amenable to surface-initiated polymerization. In this work, we report a versatile process for the simultaneous immobilization and cross-linking of a library of macromolecules on and into the blend membrane (PVDF-blend) of poly(vinylidene fluoride) and poly(methyl methacrylate)-co-poly(chloromethylstyrene). Sequential nucleophilic substitution reaction between activated halide moieties of the copolymer and amine groups of different macromolecules readily provided series of modified membranes. These membranes exhibited antifouling property superior to that of the unmodified membrane. The effectiveness of this technique has been demonstrated by the immobilization of pH or both pH- and temperature-responsive copolymer on PVDF-blend membrane for responsive separation of poly(ethylene oxide) and bovine serum albumin. Silver nanoparticles were also anchored on the select modified membranes surfaces for the enhancement of antibiofouling property. Our approach is useful to obtain verities of functional membranes and selection of membrane for a particular application.
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Affiliation(s)
- Dixit V Bhalani
- Reverse Osmosis Membrane Division, ‡AcSIR, and §Marine Biotechnology and Ecology Division, CSIR-Central Salt and Marine Chemicals Research Institute , G. B. Marg, Bhavnagar, Gujarat 364002, India
| | - Anupam Bera
- Reverse Osmosis Membrane Division, ‡AcSIR, and §Marine Biotechnology and Ecology Division, CSIR-Central Salt and Marine Chemicals Research Institute , G. B. Marg, Bhavnagar, Gujarat 364002, India
| | - Arvind K Singh Chandel
- Reverse Osmosis Membrane Division, ‡AcSIR, and §Marine Biotechnology and Ecology Division, CSIR-Central Salt and Marine Chemicals Research Institute , G. B. Marg, Bhavnagar, Gujarat 364002, India
| | - Sweta B Kumar
- Reverse Osmosis Membrane Division, ‡AcSIR, and §Marine Biotechnology and Ecology Division, CSIR-Central Salt and Marine Chemicals Research Institute , G. B. Marg, Bhavnagar, Gujarat 364002, India
| | - Suresh K Jewrajka
- Reverse Osmosis Membrane Division, ‡AcSIR, and §Marine Biotechnology and Ecology Division, CSIR-Central Salt and Marine Chemicals Research Institute , G. B. Marg, Bhavnagar, Gujarat 364002, India
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26
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Shen X, Liu J, Zhao Y, Chen L. Preparation and Anti-Fouling Property of Acryloylmorpholine-Grafted PVDF Membrane: The Effect of Cross-Linking Agent. INT POLYM PROC 2016. [DOI: 10.3139/217.3150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Inspired by the hydration capability of hydrogel materials, cross-linked poly(N-acryloylmorpholine) (PACMO) chains were designed into poly(vinylidene fluoride) (PVDF) backbones to synthesize the copolymers (PVDF-g-PACMO) using the radical polymerization method. These copolymers were then cast into the porous membranes via immersion phase inversion. The effects of N,N′-methylenebisacrylamide (MBAA) in the reaction solution on the structure and performance of as-prepared copolymer membranes were evaluated by elemental analysis, X-ray photoelectronic spectroscopy, field emission scanning electron microscopy, water contact angle measurement, protein adsorption and filtration experiment. The grafting degree of PACMO increases with the increase of MBAA amount in the reaction solution, which endows the copolymer membrane with a good hydrophilicity. The protein adsorption and irreversible membrane fouling decrease and then further increase with the elevated grafting degree of PACMO. This result indicates that the anti-fouling property of membrane not only depends on the surface hydrophilicity and but also associates with the grafting structures of PACMO. This work provides a fundamental understanding of various grafting structures governing the performance of anti-fouling properties.
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Affiliation(s)
- X. Shen
- College of Chemistry and Chemical Engineering , Qujing Normal University, Qujing , PRC
| | - J. Liu
- State Key Laboratory of Hollow Fiber Membrane Materials and Processes , School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin , PRC
| | - Y. Zhao
- State Key Laboratory of Hollow Fiber Membrane Materials and Processes , School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin , PRC
| | - L. Chen
- State Key Laboratory of Hollow Fiber Membrane Materials and Processes , School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin , PRC
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27
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Mondal S. Polymeric membranes for produced water treatment: an overview of fouling behavior and its control. REV CHEM ENG 2016. [DOI: 10.1515/revce-2015-0027] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
AbstractProduced water (PW) from the oil/gas field is an important waste stream. Due to its highly pollutant nature and large volume of generation, the management of PW is a significant challenge for the petrochemical industry. The treatment of PW can improve the economic viability of oil and gas exploration, and the treated water can provide a new source of water in the water-scarce region for some beneficial uses. The reverse osmosis (RO) and selective nanofiltration (NF) membrane treatment of PW can reduce the salt and organic contents to acceptable levels for some beneficial uses, such as irrigation, and different industrial reuses. However, membrane fouling is a major obstacle for the membrane-based treatment of PW. In this review, the author discusses the polymeric membrane (mainly RO/NF) fouling during PW treatment. Membrane fouling mechanisms by various types of foulants, such as organic, inorganic, colloidal, and biological matters, are discussed. The review concludes with some of the measures to control fouling by membrane surface modification approaches.
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28
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Wang Y, Lin H, Xiong Z, Wu Z, Yu X, Wang Y, Liu F. Investigation of abnormal thermoresponsive PVDF membranes on casting solution, membrane morphology and filtration performance. RSC Adv 2016. [DOI: 10.1039/c5ra28060e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A temperature sensitive casting solution of P(OEGMA-co-VTMOS) was prepared via an in situ polymerization method. Meanwhile, an interesting thermoresponsive PVDF membrane was obtained from the temperature sensitive casting solution.
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Affiliation(s)
- Yunze Wang
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo
- P. R. China
- Nano Science and Technology Institute
| | - Haibo Lin
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo
- P. R. China
| | - Zhu Xiong
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo
- P. R. China
| | - Ziyang Wu
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo
- P. R. China
| | - Xuemin Yu
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo
- P. R. China
| | - Yi Wang
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo
- P. R. China
| | - Fu Liu
- Ningbo Institute of Materials Technology & Engineering
- Chinese Academy of Sciences
- Ningbo
- P. R. China
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29
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Ronen A, Walker SL, Jassby D. Electroconductive and electroresponsive membranes for water treatment. REV CHEM ENG 2016. [DOI: 10.1515/revce-2015-0060] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractIn populated, water-scarce regions, seawater and wastewater are considered as potable water resources that require extensive treatment before being suitable for consumption. The separation of water from salt, organic, and inorganic matter is most commonly done through membrane separation processes. Because of permeate flux and concentration polarization, membranes are prone to fouling, resulting in a decline in membrane performance and increased energy demands. As the physical and chemical properties of commercially available membranes (polymeric and ceramic) are relatively static and insensitive to changes in the environment, there is a need for stimuli-reactive membranes with controlled, tunable surface and transport properties to decrease fouling and control membrane properties such as hydrophilicity and permselectivity. In this review, we first describe the application of electricity-conducting and electricity-responsive membranes (ERMs) for fouling mitigation. We discuss their ability to reduce organic, inorganic, and biological fouling by several mechanisms, including control over the membrane’s surface morphology, electrostatic rejection, piezoelectric vibrations, electrochemical reactions, and local pH changes. Next, we examine the use of ERMs for permselectivity modification, which allows for the optimization of rejection and control over ion transport through the application of electrical potentials and the use of electrostatically charged membrane surfaces. In addition, electrochemical reactions coupled with membrane filtration are examined, including electro-oxidation and electro-Fenton reactions, demonstrating the capability of ERMs to electro-oxidize organic contaminates with high efficiency due to high surface area and reduced mass diffusion limitations. When applicable, ERM applications are compared with commercial membranes in terms of energy consumptions. We conclude with a brief discussion regarding the future directions of ERMs and provide examples of several applications such as pore size and selectivity control, electrowettability, and capacitive deionization. To provide the reader with the current state of knowledge, the review focuses on research published in the last 5 years.
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30
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Stimuli responsive and low fouling ultrafiltration membranes from blends of polyvinylidene fluoride and designed library of amphiphilic poly(methyl methacrylate) containing copolymers. J Memb Sci 2015. [DOI: 10.1016/j.memsci.2015.01.026] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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31
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Sekhavat Pour Z, Ghaemy M. Removal of dyes and heavy metal ions from water by magnetic hydrogel beads based on poly(vinyl alcohol)/carboxymethyl starch-g-poly(vinyl imidazole). RSC Adv 2015. [DOI: 10.1039/c5ra08025h] [Citation(s) in RCA: 127] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Highly porous magnetic nanocomposite hydrogel (m-CVP) beads were prepared and used for the removal of dyes and heavy metal ions.
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Affiliation(s)
- Zahra Sekhavat Pour
- Polymer Research Laboratory
- Faculty of Chemistry
- University of Mazandaran
- Babolsar
- Iran
| | - Mousa Ghaemy
- Polymer Research Laboratory
- Faculty of Chemistry
- University of Mazandaran
- Babolsar
- Iran
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32
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Jang H, Song DH, Kim IC, Kwon YN. Fouling control through the hydrophilic surface modification of poly(vinylidene fluoride) membranes. J Appl Polym Sci 2014. [DOI: 10.1002/app.41712] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hanna Jang
- Research Center for Biobased Chemistry; Korea Research Institute of Chemical Technology; P. O. Box 107, Daejeon 305-600 Republic of Korea
| | - Du-Hyun Song
- Research Center for Biobased Chemistry; Korea Research Institute of Chemical Technology; P. O. Box 107, Daejeon 305-600 Republic of Korea
| | - In-Chul Kim
- Research Center for Biobased Chemistry; Korea Research Institute of Chemical Technology; P. O. Box 107, Daejeon 305-600 Republic of Korea
| | - Young-Nam Kwon
- School of Urban and Environmental Engineering; Ulsan National Institute of Science and Technology; Ulsan 689-798 Republic of Korea
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