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Hami SSBM, Affandi NDN, Indrie L, Tripa S, Harun AM, Ahmad MR. Enhancing Mechanical Properties and Flux of Nanofibre Membranes for Water Filtration. Polymers (Basel) 2023; 15:3281. [PMID: 37571175 PMCID: PMC10422239 DOI: 10.3390/polym15153281] [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: 06/19/2023] [Revised: 07/31/2023] [Accepted: 07/31/2023] [Indexed: 08/13/2023] Open
Abstract
Nanofibres have gained attention for their highly porous structure, narrow pore size, and high specific surface area. One of the most efficient techniques for producing nanofibres is electrospinning. These fibres are used in various fields, including water filtration. Although they possess the ability to filter various components, the fibres generally have low mechanical strength, which can mitigate their performance over time. To address this, studies have focused on enhancing nanofibre membrane strength for water filtration. Previous analyses show that the mechanical properties of nanofibre mats can be improved through solvent vapour treatment, thermal treatment, and chemical crosslinking. These treatments promote interfibre bonding, leading to the improvement of mechanical strength. However, excessive treatment alters nanofibre behaviour. Excessive heat exposure reduces interfibre bonding, while too much solvent vapour decreases pore size and mechanical strength. Thus, a comprehensive understanding of these post-treatments is crucial. This review examines post-treatments aiming to increase the mechanical strength of nanofibre mats, discussing their advantages and disadvantages. Understanding these treatments is essential for optimising nanofibre membrane performance in water filtration and other applications.
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Affiliation(s)
- Siddratul Sarah Binti Mohd Hami
- Textile Research Group, Faculty of Applied Sciences, Universiti Teknologi MARA, Shah Alam 40450, Selangor, Malaysia; (S.S.B.M.H.); (M.R.A.)
| | - Nor Dalila Nor Affandi
- Textile Research Group, Faculty of Applied Sciences, Universiti Teknologi MARA, Shah Alam 40450, Selangor, Malaysia; (S.S.B.M.H.); (M.R.A.)
| | - Liliana Indrie
- Department of Textiles, Leather and Industrial Management, Faculty of Energy Engineering and Industrial Management, University of Oradea, Universitatii Str. No. 1, 410087 Oradea, Romania;
| | - Simona Tripa
- Department of Textiles, Leather and Industrial Management, Faculty of Energy Engineering and Industrial Management, University of Oradea, Universitatii Str. No. 1, 410087 Oradea, Romania;
| | - Ahmad Mukifza Harun
- Nano Lab, Faculty Engineering, University Malaysia Sabah, Kota Kinabalu 88400, Sabah, Malaysia;
| | - Mohd Rozi Ahmad
- Textile Research Group, Faculty of Applied Sciences, Universiti Teknologi MARA, Shah Alam 40450, Selangor, Malaysia; (S.S.B.M.H.); (M.R.A.)
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2
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Siriwardane I, Sandaruwan C, de Silva RM, Williams GR, Gurgul SJ, Dziemidowicz K, de Silva KMN. Nanomagnetite- and Nanotitania-Incorporated Polyacrylonitrile Nanofibers for Simultaneous Cd(II)- and As(V)-Ion Removal Applications. ACS OMEGA 2021; 6:28171-28181. [PMID: 34723015 PMCID: PMC8552354 DOI: 10.1021/acsomega.1c04238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Accepted: 09/29/2021] [Indexed: 06/13/2023]
Abstract
This work reports the fabrication of nanomagnetite- and nanotitania-incorporated polyacrylonitrile nanofibers (MTPANs) by an electrospinning process, which has the potential to be used as a membrane material for the selective removal of Cd(II) and As(V) in water. The fiber morphology was characterized by scanning electron microscopy (SEM). The incorporation of nanomagnetite and nanotitania in the composite fiber matrix was confirmed by energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), and Fourier transform infrared (FT-IR) spectroscopy. The fibers doped with nanomagnetite and nanotitania (MPAN and TPAN fibers, respectively), as well as MTPAN and neat polycrylonitrile (PAN) fibers, after thermally stabilizing at 275 °C in air, were assessed for their comparative As(V)- and Cd(II)-ion removal capacities. The isotherm studies indicated that the highest adsorption of Cd(II) was shown by MTPAN, following the Langmuir model with a q m of 51.5 mg/m2. On the other hand, MPAN showed the highest As(V)adsorption capacity, following the Freundlich model with a K F of 0.49. The mechanism of adsorption of both Cd(II) and As(V) by fibers was found to be electrostatically driven, which was confirmed by correlating the point of zero charges (PZC) exhibited by fibers with the pH of maximum ion adsorptions. The As(V) adsorption on MPAN occurs by an inner-sphere mechanism, whereas Cd(II) adsorption on MTPAN is via both surface complexation and an As(V)-assisted inner-sphere mechanism. Even though the presence of coexistent cations, Ca(II) and Mg(II), has been shown to affect the Cd(II) removal by MTPAN, the MTPAN structure shows >50% removal efficiency even for minute concentrations (0.5 ppm) of Cd(II) in the presence of high common ion concentrations (10 ppm). Therefore, the novel polyacrylonitrile-based nanofiber material has the potential to be used in polymeric filter materials used in water purification to remove As(V) and Cd(II) simultaneously.
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Affiliation(s)
- Induni
W. Siriwardane
- Centre
for Advanced Materials and Devices (CAMD), Department of Chemistry, University of Colombo, Colombo 00300, Sri Lanka
- Sri
Lanka Institute of Nanotechnology (SLINTEC), Nanotechnology and Science
Park, Mahenwatte, Pitipana, Homagama 10200, Sri Lanka
| | - Chanaka Sandaruwan
- Sri
Lanka Institute of Nanotechnology (SLINTEC), Nanotechnology and Science
Park, Mahenwatte, Pitipana, Homagama 10200, Sri Lanka
| | - Rohini M. de Silva
- Centre
for Advanced Materials and Devices (CAMD), Department of Chemistry, University of Colombo, Colombo 00300, Sri Lanka
| | - Gareth R. Williams
- UCL
School of Pharmacy, University College London, 29−39 Brunswick Square, London WC1N 1AX, United Kingdom
| | - Sebastian J. Gurgul
- UCL
School of Pharmacy, University College London, 29−39 Brunswick Square, London WC1N 1AX, United Kingdom
| | - Karolina Dziemidowicz
- UCL
School of Pharmacy, University College London, 29−39 Brunswick Square, London WC1N 1AX, United Kingdom
| | - K. M. Nalin de Silva
- Centre
for Advanced Materials and Devices (CAMD), Department of Chemistry, University of Colombo, Colombo 00300, Sri Lanka
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Albistur A, Rivero PJ, Esparza J, Rodríguez R. Evaluation of the Photocatalytic Activity and Anticorrosion Performance of Electrospun Fibers Doped with Metallic Oxides. Polymers (Basel) 2021; 13:polym13122011. [PMID: 34203003 PMCID: PMC8234033 DOI: 10.3390/polym13122011] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 06/14/2021] [Accepted: 06/18/2021] [Indexed: 11/23/2022] Open
Abstract
This paper reports the development and characterization of a multifunctional coating that combines anticorrosion and photocatalytic properties, deposited by means of the electrospinning technique. In the first step, a functional electrospun fiber mat composed of poly(acrylic acid) (PAA) and β-cyclodextrin (β-CD) was obtained, showing high water insolubility and great adhesion increased by means of a thermal crosslinking process (denoted as PAA + β-CD). In the second step, the fibers were doped with particles of titanium dioxide (denoted as PAA + β-CD/TiO2) and titanium dioxide plus iron oxide (denoted as PAA + β-CD/TiO2/Fe2O3). The morphology and fiber diameter of the electrospun mats were evaluated by using confocal microscopy, whereas the presence of the metal oxides in the electrospun fibers was corroborated by scanning electron microscopy (SEM) and X-ray fluorescence (XRF), respectively. In addition, electrochemical tests in saline solution revealed that the sample composed of PAA + β-CD/TiO2/Fe2O3 showed the highest corrosion protection efficiency of all the samples, which was directly associated to lower corrosion current density and higher corrosion potential. Furthermore, the paper reports a novel approach to in situ determination of methylene blue (MB) degradation onto the coating. The results revealed complete degradation of MB, which is perfectly appreciated by total discoloration of the film in the irradiated zone (from bluish to a white spot). The main conclusions of this research are the efficiency of the electrospun system PAA + β-CD/TiO2/Fe2O3 for developing photocatalytic activity and corrosion protection and the utility of the dry MB discoloration tests to evaluate photocatalytic activity.
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Affiliation(s)
- Ainhoa Albistur
- Engineering Department, Campus Arrosadía s/n, Public University of Navarre, 31006 Pamplona, Spain; (A.A.); (R.R.)
| | - Pedro J. Rivero
- Engineering Department, Campus Arrosadía s/n, Public University of Navarre, 31006 Pamplona, Spain; (A.A.); (R.R.)
- Institute for Advanced Materials and Mathematics (INAMAT2), Campus Arrosadía s/n, Public University of Navarre, 31006 Pamplona, Spain
- Correspondence: (P.J.R.)
| | - Joseba Esparza
- AIN, Asociación de la Industria Navarra, 31191 Pamplona, Cordovilla, Spain;
| | - Rafael Rodríguez
- Engineering Department, Campus Arrosadía s/n, Public University of Navarre, 31006 Pamplona, Spain; (A.A.); (R.R.)
- Institute for Advanced Materials and Mathematics (INAMAT2), Campus Arrosadía s/n, Public University of Navarre, 31006 Pamplona, Spain
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Xin R, Ma H, Venkateswaran S, Hsiao BS. Electrospun Nanofibrous Adsorption Membranes for Wastewater Treatment: Mechanical Strength Enhancement. Chem Res Chin Univ 2021. [DOI: 10.1007/s40242-021-1095-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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5
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Cai J, Liu Z, Guo F. Transport Analysis of Anti-Wetting Composite Fibrous Membranes for Membrane Distillation. MEMBRANES 2020; 11:14. [PMID: 33374163 PMCID: PMC7823856 DOI: 10.3390/membranes11010014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 12/09/2020] [Accepted: 12/22/2020] [Indexed: 01/26/2023]
Abstract
Composite electrospun fibrous membranes are widely studied for the application of membrane distillation. It is an effective approach to enhance the membrane distillation performance in terms of anti-wetting surface and permeate flux by fabricating composite fibrous membranes (CFMs) with a thin skin layer on a thick supporting layer. In this work, various membranes prepared with different pore sizes and porosities by polyacrylonitrile and polyvinylpyrrolidone were prepared. The membrane characteristics and membrane distillation performance were tested. The mass transfer across the membranes was analyzed experimentally and theoretically in detail. It is shown that the skin layer significantly increases liquid entry pressure of the CFM by 5 times. All the membranes have a similar permeate flux. The permeate flux of membranes is stable at 19.2 ± 1.2 kg/m2/h, and the salt rejection ratios remain above 99.98% at 78 ± 1 °C for 11 h. The pore size and porosity of membranes have an insignificant effect on the temperature distribution of membrane. The porosity and pore size of the skin layer have an insignificant effect on the mass transfer process of the CFM. The mass transfer process of the CFM is governed by the supporting layer.
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Affiliation(s)
| | | | - Fei Guo
- School of Energy and Power Engineering, Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, Dalian University of Technology, No.2 Linggong Road, Dalian 116024, China; (J.C.); (Z.L.)
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6
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Zhang X, Li Z, Lin S, Théato P. Fibrous Materials Based on Polymeric Salicyl Active Esters as Efficient Adsorbents for Selective Removal of Anionic Dye. ACS APPLIED MATERIALS & INTERFACES 2020; 12:21100-21113. [PMID: 32281366 DOI: 10.1021/acsami.0c03039] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
To increase the performance efficiency and decrease the costs for organic dye wastewater purification, two fibrous adsorbents based on polymeric salicyl active esters were developed by means of a simple two-step approach. For the first time, salicyl-based active ester polymers were electrospun into fibrous membranes and subsequently postmodified with the desired functional groups under simple and mild reaction conditions. The morphology of the produced fibrous adsorbents was characterized by scanning electron microscopy (SEM), the surface properties were analyzed by nitrogen adsorption/desorption isotherms and contact angle measurements, and the completeness of the postmodification process was determined by Fourier transform infrared (FTIR) and elemental analyses. The adsorbents were further tested for their adsorption and selectivity performance of different organic dyes as well as for their recyclability. To explore the adsorption mechanism, four kinetic models and three isotherm models were used to analyze the adsorption data. The results indicated that the fibrous adsorbents showed an extremely high adsorption capacity for the anionic dye methyl blue. The fibrous adsorbents were also able to selectively adsorb anionic dyes from a mixture of anionic and cationic dyes, and they could be recycled at least 10 times. The simple and cost-efficient development process of these fibrous adsorbents and their excellent performance make them promising materials for further research and application in the area of water treatment.
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Affiliation(s)
- Xiaoxiao Zhang
- Institute for Technical and Macromolecular Chemistry, University of Hamburg, Bundesstrasse 45, 20146 Hamburg, Germany
| | - Zengwen Li
- Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstraße 18, 76128 Karlsruhe, Germany
| | - Shaojian Lin
- Institute for Technical and Macromolecular Chemistry, University of Hamburg, Bundesstrasse 45, 20146 Hamburg, Germany
| | - Patrick Théato
- Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstraße 18, 76128 Karlsruhe, Germany
- Soft Matter Synthesis Laboratory, Institute for Biological Interfaces III, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
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Homaeigohar S. The Nanosized Dye Adsorbents for Water Treatment. NANOMATERIALS 2020; 10:nano10020295. [PMID: 32050582 PMCID: PMC7075180 DOI: 10.3390/nano10020295] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 02/02/2020] [Accepted: 02/04/2020] [Indexed: 01/14/2023]
Abstract
Clean water is a vital element for survival of any living creature and, thus, crucially important to achieve largely and economically for any nation worldwide. However, the astonishingly fast trend of industrialization and population growth and the arisen extensive water pollutions have challenged access to clean water across the world. In this regard, 1.6 million tons of dyes are annually consumed. Thereof, 10%–15% are wasted during use. To decolorize water streams, there is an urgent need for the advanced remediation approaches involving utilization of novel materials and technologies, which are cost and energy efficient. Nanomaterials, with their outstanding physicochemical properties, can potentially resolve the challenge of need to water treatment in a less energy demanding manner. In this review, a variety of the most recent (from 2015 onwards) opportunities arisen from nanomaterials in different dimensionalities, performances, and compositions for water decolorization is introduced and discussed. The state-of-the-art research studies are presented in a classified manner, particularly based on structural dimensionality, to better illustrate the current status of adsorption-based water decolorization using nanomaterials. Considering the introduction of many newly developed nano-adsorbents and their classification based on the dimensionality factor, which has never been employed for this sake in the related literature, a comprehensive review will be presented.
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Affiliation(s)
- Shahin Homaeigohar
- Nanochemistry and Nanoengineering, Department of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, Kemistintie 1, 00076 Aalto, Finland
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8
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Heat-treated optimized polysulfone electrospun nanofibrous membranes for high performance wastewater microfiltration. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.05.097] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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9
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Liu Z, Wei Z, Long S, Wang X, Yang J. Solvent‐resistant polymeric microfiltration membranes based on oxidized electrospun poly(arylene sulfide sulfone) nanofibers. J Appl Polym Sci 2019. [DOI: 10.1002/app.48506] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Zhenyan Liu
- College of Polymer Science and Engineering, Sichuan University Chengdu 610065 China
| | - Zhimei Wei
- Institute of Materials Science and Technology, Sichuan University Chengdu 610065 China
| | - Shengru Long
- Institute of Materials Science and Technology, Sichuan University Chengdu 610065 China
| | - Xiaojun Wang
- Institute of Materials Science and Technology, Sichuan University Chengdu 610065 China
| | - Jie Yang
- Institute of Materials Science and Technology, Sichuan University Chengdu 610065 China
- State Key Laboratory of Polymer Materials EngineeringSichuan University Chengdu 610065 China
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10
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Multifunctional Protective PVC-ZnO Nanocomposite Coatings Deposited on Aluminum Alloys by Electrospinning. COATINGS 2019. [DOI: 10.3390/coatings9040216] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
This paper reports the use of the electrospinning technique for the synthesis of nanocomposite micro/nanofibers by combining a polymeric precursor with hydrophobic behavior like polyvinyl chloride (PVC) with nanoparticles of a corrosion inhibitor like ZnO. These electrospun fibers were deposited on substrates of the aluminum alloy 6061T6 until forming a coating around 100 μm. The effect of varying the different electrospinning deposition parameters (mostly applied voltage and flow-rate) was exhaustively analyzed in order to optimize the coating properties. Several microscopy and analysis techniques have been employed, including optical microscopy (OM), field emission scanning electron microscopy (FE-SEM), atomic force microscopy (AFM), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC). Water contact angle (WCA) measurements have been carried out in order to corroborate the coating hydrophobicity. Finally, their corrosion behavior has been evaluated by electrochemical tests (Tafel curves and pitting potential measurements), showing a relevant improvement in the resultant corrosion resistance of the coated aluminum alloys.
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11
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Wang Y, Chao G, Li X, Dong F, Zhuang X, Shi L, Cheng B, Xu X. Hierarchical fibrous microfiltration membranes by self-assembling DBS nanofibrils in solution-blown nanofibers. SOFT MATTER 2018; 14:8879-8882. [PMID: 30378629 DOI: 10.1039/c8sm01890a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A novel hierarchical nanofibrous membrane was demonstrated via in situ self-assembly of 1,3:2,4-dibenzylidene-d-sorbitol (DBS) supramolecular fibrils in solution-blown polyacrylonitrile (PAN) nanofibers. The formed DBS fibrils were interconnected into networks and anchored onto the PAN nanofibers, which decreased the pore sizes and enhanced the mechanical properties, the filtration efficiency, and particularly the flux.
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Affiliation(s)
- Yifei Wang
- State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membranes, Tianjin Polytechnic University, Tianjin 300387, P. R. China
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12
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13
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Gutierrez L, Keucken A, Aubry C, Zaouri N, Teychene B, Croue JP. Impact of operation conditions, foulant adsorption, and chemical cleaning on the nanomechanical properties of ultrafiltration hollow fiber membranes. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.04.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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14
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Shi X, Xu Z, Huang C, Wang Y, Cui Z. Selective Swelling of Electrospun Block Copolymers: From Perforated Nanofibers to High Flux and Responsive Ultrafiltration Membranes. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b00220] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Xiansong Shi
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, and Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 210009, P. R. China
| | - Zhi Xu
- CRMI Technology Centre, Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, U.K
| | - Chaobo Huang
- College of Chemical Engineering, Jiangsu Key Lab of Biomass-based Green Fuels and Chemicals, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Yong Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, and Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 210009, P. R. China
| | - Zhanfeng Cui
- CRMI Technology Centre, Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, U.K
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15
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Liao Y, Loh CH, Tian M, Wang R, Fane AG. Progress in electrospun polymeric nanofibrous membranes for water treatment: Fabrication, modification and applications. Prog Polym Sci 2018. [DOI: 10.1016/j.progpolymsci.2017.10.003] [Citation(s) in RCA: 419] [Impact Index Per Article: 69.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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16
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Chen S, Du Y, Zhang X, Xie Y, Shi Z, Ji H, Zhao W, Zhao C. One-step electrospinning of negatively-charged polyethersulfone nanofibrous membranes for selective removal of cationic dyes. J Taiwan Inst Chem Eng 2018. [DOI: 10.1016/j.jtice.2017.11.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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17
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Hromádko L, Koudelková E, Bulánek R, Macak JM. SiO 2 Fibers by Centrifugal Spinning with Excellent Textural Properties and Water Adsorption Performance. ACS OMEGA 2017; 2:5052-5059. [PMID: 31457782 PMCID: PMC6641703 DOI: 10.1021/acsomega.7b00770] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 08/14/2017] [Indexed: 06/10/2023]
Abstract
Facile and innovative route for large-scale synthesis of SiO2 fibers with excellent textural properties and H2O adsorption performance is presented. At first, a three-dimensional network of SiO2 precursor fibers was produced from tailored spun solutions (without any toxic elements and surfactants) by centrifugal spinning, which is a very modern fiber-synthesis technique, with numerous advantages over electrospinning. Upon thermal annealing of the precursor fibers, mesoporous amorphous SiO2 fibers with an ultrahigh surface area of up to 824 m2/g and pore size distribution in the range of 2-10 nm were produced. Owing to the high number of OH groups available on the surface, the produced SiO2 fibers showed significantly better performance in H2O adsorption compared to that of the reference silicagel.
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Affiliation(s)
- Luděk Hromádko
- Center
of Materials and Nanotechnologies, Faculty of Chemical Technology, University of Pardubice, Nam. Cs. Legii 565, Pardubice 530 02, Czech Republic
| | - Eva Koudelková
- Department
of Physical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentska 573, Pardubice 530 02, Czech Republic
| | - Roman Bulánek
- Department
of Physical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentska 573, Pardubice 530 02, Czech Republic
| | - Jan M. Macak
- Center
of Materials and Nanotechnologies, Faculty of Chemical Technology, University of Pardubice, Nam. Cs. Legii 565, Pardubice 530 02, Czech Republic
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18
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Santoro S, Vidorreta I, Sebastian V, Moro A, Coelhoso I, Portugal C, Lima J, Desiderio G, Lombardo G, Drioli E, Mallada R, Crespo J, Criscuoli A, Figoli A. A non-invasive optical method for mapping temperature polarization in direct contact membrane distillation. J Memb Sci 2017. [DOI: 10.1016/j.memsci.2017.05.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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19
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20
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Affiliation(s)
- P. S. Suja
- Department of Chemistry, Material Research Laboratory, National Institute of Technology Calicut, Kozhikode, Kerala, India
| | - C. R. Reshmi
- Department of Chemistry, Material Research Laboratory, National Institute of Technology Calicut, Kozhikode, Kerala, India
| | - P. Sagitha
- Department of Chemistry, Material Research Laboratory, National Institute of Technology Calicut, Kozhikode, Kerala, India
| | - A. Sujith
- Department of Chemistry, Material Research Laboratory, National Institute of Technology Calicut, Kozhikode, Kerala, India
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Habiba U, Afifi AM, Salleh A, Ang BC. Chitosan/(polyvinyl alcohol)/zeolite electrospun composite nanofibrous membrane for adsorption of Cr 6+, Fe 3+ and Ni 2. JOURNAL OF HAZARDOUS MATERIALS 2017; 322:182-194. [PMID: 27436300 DOI: 10.1016/j.jhazmat.2016.06.028] [Citation(s) in RCA: 173] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Revised: 06/04/2016] [Accepted: 06/12/2016] [Indexed: 05/24/2023]
Abstract
In this study, chitosan/polyvinyl alcohol (PVA)/zeolite nanofibrous composite membrane was fabricated via electrospinning. First, crude chitosan was hydrolyzed with NaOH for 24h. Afterward, hydrolyzed chitosan solution was blended with aqueous PVA solution in different weight ratios. Morphological analysis of chitosan/PVA electrospun nanofiber showed a defect-free nanofiber material with 50:50 weight ratio of chitosan/PVA. Subsequently, 1wt.% of zeolite was added to this blended solution of 50:50 chitosan/PVA. The resulting nanofiber was characterized with field emission scanning electron microscopy, X-Ray diffraction, Fourier transform infrared spectroscopy, swelling test, and adsorption test. Fine, bead-free nanofiber with homogeneous nanofiber was electrospun. The resulting membrane was stable in distilled water, acidic, and basic media in 20 days. Moreover, the adsorption ability of nanofibrous membrane was studied over Cr (VI), Fe (III), and Ni (II) ions using Langmuir isotherm. Kinetic parameters were estimated using the Lagergren first-order, pseudo-second-order, and intraparticle diffusion kinetic models. Kinetic study showed that adsorption rate was high. However, the resulting nanofiber membrane showed less adsorption capacity at high concentration. The adsorption capacity of nanofiber was unaltered after five recycling runs, which indicated the reusability of chitosan/PVA/zeolite nanofibrous membrane. Therefore, chitosan/PVA/zeolite nanofiber can be a useful material for water treatment at moderate concentration of heavy metals.
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Affiliation(s)
- Umma Habiba
- Center of Advanced Material, Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia
| | - Amalina M Afifi
- Center of Advanced Material, Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia
| | - Areisman Salleh
- Center of Advanced Material, Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia
| | - Bee Chin Ang
- Center of Advanced Material, Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia.
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22
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Li Z, Kang W, Zhao H, Hu M, Wei N, Qiu J, Cheng B. A Novel Polyvinylidene Fluoride Tree-Like Nanofiber Membrane for Microfiltration. NANOMATERIALS (BASEL, SWITZERLAND) 2016; 6:E152. [PMID: 28335279 PMCID: PMC5224614 DOI: 10.3390/nano6080152] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 07/31/2016] [Accepted: 08/08/2016] [Indexed: 11/22/2022]
Abstract
A novel polyvinylidene fluoride (PVDF) tree-like nanofiber membrane (PVDF-TLNM) was fabricated by adding tetrabutylammonium chloride (TBAC) into a PVDF spinning solution via one-step electrospinning. The structure of the prepared membranes was characterized by field emission scanning electron microscopy (FE-SEM), Fourier transform infrared spectroscopy (FT-IR) and pore size analysis, and the hydrophilic property and microfiltration performance were also evaluated. The results showed that the tree-like nanofiber was composed of trunk fibers and branch fibers with diameters of 100-500 nm and 5-100 nm, respectively. The pore size of PVDF-TLNM (0.36 μm) was smaller than that of a common nanofiber membrane (3.52 μm), and the hydrophilic properties of the membranes were improved significantly. The PVDF-TLNM with a thickness of 30 ± 2 μm showed a satisfactory retention ratio of 99.9% against 0.3 μm polystyrene (PS) particles and a high pure water flux of 2.88 × 10⁴ L·m-2·h-1 under the pressure of 25 psi. This study highlights the potential benefits of this novel PVDF tree-like nanofiber membrane in the membrane field, which can achieve high flux rates at low pressure.
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Affiliation(s)
- Zongjie Li
- College of Textile, Tianjin Polytechnic University, Tianjin 300387, China.
| | - Weimin Kang
- College of Textile, Tianjin Polytechnic University, Tianjin 300387, China.
| | - Huihui Zhao
- College of Textile, Tianjin Polytechnic University, Tianjin 300387, China.
| | - Min Hu
- College of Textile, Tianjin Polytechnic University, Tianjin 300387, China.
| | - Na Wei
- College of Packaging and Printing Engineering, Tianjin Vocational Institute, Tianjin 300387, China.
| | - Jiuan Qiu
- College of Packaging and Printing Engineering, Tianjin Vocational Institute, Tianjin 300387, China.
| | - Bowen Cheng
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, China.
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23
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Sheng J, Zhang M, Luo W, Yu J, Ding B. Thermally induced chemical cross-linking reinforced fluorinated polyurethane/polyacrylonitrile/polyvinyl butyral nanofibers for waterproof-breathable application. RSC Adv 2016. [DOI: 10.1039/c5ra27913e] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Thermally induced chemical cross-linking could enhance the FPAN/PVB/BIP composite nanofibrous membranes with robust mechanical, waterproof and breathable performance.
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Affiliation(s)
- Junlu Sheng
- Key Laboratory of Textile Science & Technology
- Ministry of Education
- College of Textiles
- Donghua University
- Shanghai 201620
| | - Min Zhang
- Key Laboratory of Textile Science & Technology
- Ministry of Education
- College of Textiles
- Donghua University
- Shanghai 201620
| | - Wenjing Luo
- Department of Occupational and Environmental Health
- School of Public Health
- Fourth Military Medical University
- Xi'an
- China
| | - Jianyong Yu
- Key Laboratory of Textile Science & Technology
- Ministry of Education
- College of Textiles
- Donghua University
- Shanghai 201620
| | - Bin Ding
- Key Laboratory of Textile Science & Technology
- Ministry of Education
- College of Textiles
- Donghua University
- Shanghai 201620
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24
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Thermal inter-fiber adhesion of the polyacrylonitrile/fluorinated polyurethane nanofibrous membranes with enhanced waterproof-breathable performance. Sep Purif Technol 2016. [DOI: 10.1016/j.seppur.2015.11.046] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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25
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Zhang M, Xu WY, Wang JM, Luan JS, Dong HN, Zhang YJ, Li XQ, Sun DH. Preparation and characterization ofRana chensinensisskin extract/poly(ε-caprolactone) electrospun membranes as antibacterial fibrous mats. J Appl Polym Sci 2015. [DOI: 10.1002/app.42030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Mei Zhang
- College of Quartermaster Technology, Jilin University; Changchun 130062 China
| | - Wen-Yu Xu
- College of Quartermaster Technology, Jilin University; Changchun 130062 China
| | - Jia-Mian Wang
- College of Quartermaster Technology, Jilin University; Changchun 130062 China
| | - Jia-Shuang Luan
- College of Quartermaster Technology, Jilin University; Changchun 130062 China
| | - He-Nan Dong
- College of Quartermaster Technology, Jilin University; Changchun 130062 China
| | - Yu-Jing Zhang
- College of Quartermaster Technology, Jilin University; Changchun 130062 China
| | - Xue-Qi Li
- College of Quartermaster Technology, Jilin University; Changchun 130062 China
| | - Da-Hui Sun
- Norman Bethune First Hospital, Jilin University; Changchun 130021 China
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26
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Homaeigohar S, Elbahri M. Nanocomposite Electrospun Nanofiber Membranes for Environmental Remediation. MATERIALS 2014; 7:1017-1045. [PMID: 28788497 PMCID: PMC5453108 DOI: 10.3390/ma7021017] [Citation(s) in RCA: 96] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2013] [Revised: 01/14/2014] [Accepted: 01/15/2014] [Indexed: 11/16/2022]
Abstract
Rapid worldwide industrialization and population growth is going to lead to an extensive environmental pollution. Therefore, so many people are currently suffering from the water shortage induced by the respective pollution, as well as poor air quality and a huge fund is wasted in the world each year due to the relevant problems. Environmental remediation necessitates implementation of novel materials and technologies, which are cost and energy efficient. Nanomaterials, with their unique chemical and physical properties, are an optimum solution. Accordingly, there is a strong motivation in seeking nano-based approaches for alleviation of environmental problems in an energy efficient, thereby, inexpensive manner. Thanks to a high porosity and surface area presenting an extraordinary permeability (thereby an energy efficiency) and selectivity, respectively, nanofibrous membranes are a desirable candidate. Their functionality and applicability is even promoted when adopting a nanocomposite strategy. In this case, specific nanofillers, such as metal oxides, carbon nanotubes, precious metals, and smart biological agents, are incorporated either during electrospinning or in the post-processing. Moreover, to meet operational requirements, e.g., to enhance mechanical stability, decrease of pressure drop, etc., nanofibrous membranes are backed by a microfibrous non-woven forming a hybrid membrane. The novel generation of nanocomposite/hybrid nanofibrous membranes can perform extraordinarily well in environmental remediation and control. This reality justifies authoring of this review paper.
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Affiliation(s)
- Shahin Homaeigohar
- Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Nanochemistry and Nanoengineering, Max-Planck-Str.1, 21502 Geesthacht, Germany.
| | - Mady Elbahri
- Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Nanochemistry and Nanoengineering, Max-Planck-Str.1, 21502 Geesthacht, Germany.
- Nanochemistry and Nanoengineering, Institute for Materials Science, Faculty of Engineering, Christian-Albrechts-Universität zu Kiel, Kaiserstrasse 2, 24143 Kiel, Germany.
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