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Qanati O, Dusti Z, Dorraji MSS, Ahmadi A, Rasoulifard MH. Thin film composite on sulfonated PVDF electrospun and its performance in nanofiltration. KOREAN J CHEM ENG 2023. [DOI: 10.1007/s11814-022-1341-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2023]
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2
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Acarer S, Pir İ, Tüfekci M, Erkoç T, Öztekin V, Dikicioğlu C, Demirkol GT, Durak SG, Özçoban MŞ, Çoban TYT, Çavuş S, Tüfekci N. Characterisation and Mechanical Modelling of Polyacrylonitrile-Based Nanocomposite Membranes Reinforced with Silica Nanoparticles. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12213721. [PMID: 36364496 PMCID: PMC9657008 DOI: 10.3390/nano12213721] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/19/2022] [Accepted: 10/20/2022] [Indexed: 06/12/2023]
Abstract
In this study, neat polyacrylonitrile (PAN) and fumed silica (FS)-doped PAN membranes (0.1, 0.5 and 1 wt% doped PAN/FS) are prepared using the phase inversion method and are characterised extensively. According to the Fourier Transform Infrared (FTIR) spectroscopy analysis, the addition of FS to the neat PAN membrane and the added amount changed the stresses in the membrane structure. The Scanning Electron Microscope (SEM) results show that the addition of FS increased the porosity of the membrane. The water content of all fabricated membranes varied between 50% and 88.8%, their porosity ranged between 62.1% and 90%, and the average pore size ranged between 20.1 and 21.8 nm. While the neat PAN membrane's pure water flux is 299.8 L/m2 h, it increased by 26% with the addition of 0.5 wt% FS. Furthermore, thermal gravimetric analysis (TGA) and differential thermal analysis (DTA) techniques are used to investigate the membranes' thermal properties. Finally, the mechanical characterisation of manufactured membranes is performed experimentally with tensile testing under dry and wet conditions. To be able to provide further explanation to the explored mechanics of the membranes, numerical methods, namely the finite element method and Mori-Tanaka mean-field homogenisation are performed. The mechanical characterisation results show that FS reinforcement increases the membrane rigidity and wet membranes exhibit more compliant behaviour compared to dry membranes.
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Affiliation(s)
- Seren Acarer
- Department of Environmental Engineering, Faculty of Engineering, Istanbul University-Cerrahpasa, İstanbul 34320, Turkey
| | - İnci Pir
- Faculty of Mechanical Engineering, Istanbul Technical University, İstanbul 34437, Turkey
| | - Mertol Tüfekci
- South Kensington Campus, Department of Mechanical Engineering, Imperial College London, Exhibition Road, London SW7 2AZ, UK
| | - Tuğba Erkoç
- Department of Chemical Engineering, Faculty of Engineering, Istanbul University-Cerrahpaşa, İstanbul 34320, Turkey
| | - Vehbi Öztekin
- Faculty of Mechanical Engineering, Istanbul Technical University, İstanbul 34437, Turkey
| | - Can Dikicioğlu
- Faculty of Mechanical Engineering, Istanbul Technical University, İstanbul 34437, Turkey
| | - Güler Türkoğlu Demirkol
- Department of Environmental Engineering, Faculty of Engineering, Istanbul University-Cerrahpasa, İstanbul 34320, Turkey
| | - Sevgi Güneş Durak
- Department of Environmental Engineering, Faculty of Engineering-Architecture, Nevsehir Haci Bektas Veli University, Nevsehir 50300, Turkey
| | - Mehmet Şükrü Özçoban
- Faculty of Civil Engineering, Yıldız Technical University, İstanbul 34220, Turkey
| | - Tuba Yelda Temelli Çoban
- Department of Environmental Engineering, Faculty of Engineering, Istanbul University-Cerrahpasa, İstanbul 34320, Turkey
| | - Selva Çavuş
- Department of Chemical Engineering, Faculty of Engineering, Istanbul University-Cerrahpaşa, İstanbul 34320, Turkey
| | - Neşe Tüfekci
- Department of Environmental Engineering, Faculty of Engineering, Istanbul University-Cerrahpasa, İstanbul 34320, Turkey
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3
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Yin S, Villagrán D. Design of nanomaterials for the removal of per- and poly-fluoroalkyl substances (PFAS) in water: Strategies, mechanisms, challenges, and opportunities. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 831:154939. [PMID: 35367257 DOI: 10.1016/j.scitotenv.2022.154939] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 03/26/2022] [Accepted: 03/27/2022] [Indexed: 06/14/2023]
Abstract
Due to their persistent and pervasive distribution and their adverse effects on human health, the removal of per- and polyfluoroalkyl substances (PFAS) from the environment has been the focus of current research. Recent studies have shown that engineered nanomaterials provide great opportunities for their removal by chemical, physical and electrochemical adsorption methods, or as photo- or electrocatalysts that promote their degradation. This review summarizes and discusses the performance of recently reported nanomaterials towards PFAS removal in water treatment applications. We discuss the performance, mechanisms, and PFAS removal conditions of a variety of nanomaterials, including carbon-based, non-metal, single-metal, and multi-metal nanomaterials. We show that nanotechnology provides significant opportunities for PFAS remediation and further nanomaterial development can provide solutions for the removal of PFAS from the environment. We also provide an overview of the current challenges.
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Affiliation(s)
- Sheng Yin
- Department of Chemistry and Biochemistry, The University of Texas at El Paso, El Paso, TX 79968, USA; Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment (NEWT), USA
| | - Dino Villagrán
- Department of Chemistry and Biochemistry, The University of Texas at El Paso, El Paso, TX 79968, USA; Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment (NEWT), USA.
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4
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Jiang H, Wang P, Zhao Q, Wang Z, Sun X, Chen M, Han B, Ma J. Enhanced water permeance and antifouling performance of gravity-driven ultrafiltration membrane with in-situ formed rigid pore structure. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2021.120154] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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5
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Ahmadi B, Seyed Dorrji MS, Kianfar M, Rasoulifard MH, Ahmadi A. A novel multilayer thin-film membrane with high durability: preparation, characterization, performance investigation. NEW J CHEM 2022. [DOI: 10.1039/d2nj01170k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The main aim of this research is the improvement of the performance in desalination of polyamide (PA) thin film composite nanofiltration membranes by modification of nanofibrous polyvinylidene fluoride as a support layer.
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Affiliation(s)
- B. Ahmadi
- Applied Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, Iran
| | - M. S. Seyed Dorrji
- Applied Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, Iran
| | - M. Kianfar
- Applied Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, Iran
| | - M. H. Rasoulifard
- Applied Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, Iran
| | - A. Ahmadi
- Applied Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, Iran
- Department of Design & Engineering, Absamin Water Treatment Company, Karaj, Iran
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6
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Zainuddin NI, Bilad MR, Marbelia L, Budhijanto W, Arahman N, Fahrina A, Shamsuddin N, Zaki ZI, El-Bahy ZM, Nandiyanto ABD, Gunawan P. Sequencing Batch Integrated Fixed-Film Activated Sludge Membrane Process for Treatment of Tapioca Processing Wastewater. MEMBRANES 2021; 11:membranes11110875. [PMID: 34832104 PMCID: PMC8617780 DOI: 10.3390/membranes11110875] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 11/10/2021] [Accepted: 11/11/2021] [Indexed: 11/16/2022]
Abstract
Tapioca processing industries are very popular in the rural community to produce a variety of foods as the end products. Due to their small scales and scattered locations, they require robust modular systems to operate at low capacity with minimum supervision. This study explores the application of a novel sequencing batch-integrated fixed-film activated sludge membrane (SB-IFASM) process to treat tapioca processing wastewater for reuse purposes. The SB-IFASM employed a gravity-driven system and utilizes biofilm to enhance biodegradation without requiring membrane cleaning. The SB-IFASM utilizes the biofilm as a secondary biodegradation stage to enhance the permeate quality applicable for reuse. A lab-scale SB-IFASM was developed, preliminarily assessed, and used to treat synthetic tapioca processing industry wastewater. The results of short-term filtration tests showed the significant impact of hydrostatic pressure on membrane compaction and instant cake layer formation. Increasing the pressure from 2.2 to 10 kPa lowered the permeability of clean water and activated sludge from 720 to 425 and from 110 to 50 L/m2·h bar, respectively. The unsteady-state operation of the SB-IFASM showed the prominent role of the bio-cake in removing the organics reaching the permeate quality suitable for reuse. High COD removals of 63-98% demonstrated the prominence contribution of the biofilm in enhancing biological performance and ultimate COD removals of >93% make it very attractive for application in small-scale tapioca processing industries. However, the biological ecosystem was unstable, as shown by foaming that deteriorated permeability and was detrimental to the organic removal. Further developments are still required, particularly to address the biological stability and low permeability.
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Affiliation(s)
- Nur Izzati Zainuddin
- Department of Chemical Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Malaysia;
| | - Muhammad Roil Bilad
- Faculty of Integrated Technologies, Universiti Brunei Darussalam, Bandar Seri Begawan BE1410, Brunei;
- Correspondence: (M.R.B.); (N.A.)
| | - Lisendra Marbelia
- Department of Chemical Engineering, Faculty of Engineering, Universitas Gadjah Mada, Jalan Grafika 2, Yogyakarta 55281, Indonesia; (L.M.); (W.B.)
| | - Wiratni Budhijanto
- Department of Chemical Engineering, Faculty of Engineering, Universitas Gadjah Mada, Jalan Grafika 2, Yogyakarta 55281, Indonesia; (L.M.); (W.B.)
| | - Nasrul Arahman
- Department of Chemical Engineering, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia;
- Magister Program of Environmental Management, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
- Correspondence: (M.R.B.); (N.A.)
| | - Afrilia Fahrina
- Department of Chemical Engineering, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia;
| | - Norazanita Shamsuddin
- Faculty of Integrated Technologies, Universiti Brunei Darussalam, Bandar Seri Begawan BE1410, Brunei;
| | - Zaki Ismail Zaki
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia;
| | - Zeinhom M. El-Bahy
- Department of Chemistry, Faculty of Science, Al-Azhar University, Nasr City, Cairo 11884, Egypt;
| | | | - Poernomo Gunawan
- School of Chemical & Biomedical Engineering, Nanyang Technological University, Singapore 639798, Singapore;
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7
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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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8
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Hosseini S, Daneshvar e Asl S, Vossoughi M, Simchi A, Sadrzadeh M. Green Electrospun Membranes Based on Chitosan/Amino-Functionalized Nanoclay Composite Fibers for Cationic Dye Removal: Synthesis and Kinetic Studies. ACS OMEGA 2021; 6:10816-10827. [PMID: 34056236 PMCID: PMC8153774 DOI: 10.1021/acsomega.1c00480] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 03/30/2021] [Indexed: 05/13/2023]
Abstract
Chitosan/poly(vinyl alcohol)/amino-functionalized montmorillonite nanocomposite electrospun membranes with enhanced adsorption capacity and thermomechanical properties were fabricated and utilized for the removal of a model cationic dye (Basic Blue 41). Effects of nanofiller concentrations (up to 3.0 wt %) on the morphology and size of the nanofibers as well as the porosity and thermomechanical properties of the nanocomposite membranes are studied. It is shown that the incorporation of the nanoclay particles with ∼10 nm lateral sizes into the polymer increases the size of the pores by about 80%. To demonstrate the efficiency of the adsorbents, the dye removal rate is investigated as a function of pH, adsorbent dosage, dye concentration, and nanofiller loading. The highest and fastest dye removal occurs for the nanofibrous membranes containing 2 wt % nanofiller, where about 80% of the cationic dye is removed after 15 min. This performance is at least 20% better than the pristine chitosan/poly(vinyl alcohol) membrane. The thermal stability and compression resistance of the nanocomposite membranes are found to be higher than those of the pristine membrane. In addition, reusability studies show that the dye removal performance of this nanocomposite membrane reduces by only about 5% over four cycles. The adsorption kinetics is explained by the Langmuir isotherm model and is expressed by a pseudo-second-order kinetic mechanism that determines a spontaneous chemisorption process. The results of this study provide a valuable perspective on the fabrication of high-performance, reusable, and efficient electrospun fibrous nanocomposite adsorbents.
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Affiliation(s)
- Seyed
Abolhassan Hosseini
- Department
of Mechanical Engineering, 10-367 Donadeo Innovation Center for Engineering,
Advanced Water Research Lab (AWRL), University
of Alberta, Edmonton, AB, Canada T6G 1H9
- Department
of Chemical & Petroleum Engineering, Sharif University of Technology, Tehran, Iran 1458889694
| | - Shervin Daneshvar e Asl
- Department
of Materials Science & Engineering, Sharif University of Technology, Tehran, Iran 1458889694
| | - Manouchehr Vossoughi
- Department
of Chemical & Petroleum Engineering, Sharif University of Technology, Tehran, Iran 1458889694
| | - Abdolreza Simchi
- Department
of Materials Science & Engineering, Sharif University of Technology, Tehran, Iran 1458889694
| | - Mohtada Sadrzadeh
- Department
of Mechanical Engineering, 10-367 Donadeo Innovation Center for Engineering,
Advanced Water Research Lab (AWRL), University
of Alberta, Edmonton, AB, Canada T6G 1H9
- . Tel: +1 780 492
8745
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9
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Spoială A, Ilie CI, Ficai D, Ficai A, Andronescu E. Chitosan-Based Nanocomposite Polymeric Membranes for Water Purification-A Review. MATERIALS (BASEL, SWITZERLAND) 2021; 14:2091. [PMID: 33919022 PMCID: PMC8122305 DOI: 10.3390/ma14092091] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 04/16/2021] [Accepted: 04/16/2021] [Indexed: 01/11/2023]
Abstract
During the past few years, researchers have focused their attention on developing innovative nanocomposite polymeric membranes with applications in water purification. Natural and synthetic polymers were considered, and it was proven that chitosan-based materials presented important features. This review presents an overview regarding diverse materials used in developing innovative chitosan-based nanocomposite polymeric membranes for water purification. The first part of the review presents a detailed introduction about chitosan, highlighting the fact that is a biocompatible, biodegradable, low-cost, nontoxic biopolymer, having unique structure and interesting properties, and also antibacterial and antioxidant activities, reasons for using it in water treatment applications. To use chitosan-based materials for developing nanocomposite polymeric membranes for wastewater purification applications must enhance their performance by using different materials. In the second part of the review, the performance's features will be presented as a consequence of adding different nanoparticles, also showing the effect that those nanoparticles could bring on other polymeric membranes. Among these features, pollutant's retention and enhancing thermo-mechanical properties will be mentioned. The focus of the third section of the review will illustrate chitosan-based nanocomposite as polymeric membranes for water purification. Over the last few years, researchers have demonstrated that adsorbent nanocomposite polymeric membranes are powerful, important, and potential instruments in separation or removal of pollutants, such as heavy metals, dyes, and other toxic compounds presented in water systems. Lastly, we conclude this review with a summary of the most important applications of chitosan-based nanocomposite polymeric membranes and their perspectives in water purification.
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Affiliation(s)
- Angela Spoială
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Gh Polizu Street, 011061 Bucharest, Romania; (A.S.); (C.-I.I.); (E.A.)
| | - Cornelia-Ioana Ilie
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Gh Polizu Street, 011061 Bucharest, Romania; (A.S.); (C.-I.I.); (E.A.)
| | - Denisa Ficai
- Department of Inorganic Chemistry, Physical Chemistry and Electrochemistry, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Gh Polizu Street, 050054 Bucharest, Romania;
- National Centre for Micro and Nanomaterials and National Centre for Food Safety, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, Romania
| | - Anton Ficai
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Gh Polizu Street, 011061 Bucharest, Romania; (A.S.); (C.-I.I.); (E.A.)
- National Centre for Micro and Nanomaterials and National Centre for Food Safety, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, Romania
- Academy of Romanian Scientists, 3 Ilfov Street, 050045 Bucharest, Romania
| | - Ecaterina Andronescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Gh Polizu Street, 011061 Bucharest, Romania; (A.S.); (C.-I.I.); (E.A.)
- National Centre for Micro and Nanomaterials and National Centre for Food Safety, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, Romania
- Academy of Romanian Scientists, 3 Ilfov Street, 050045 Bucharest, Romania
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10
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Liu Y, Bai L, Zhu X, Xu D, Li G, Liang H, Wiesner MR. The role of carboxylated cellulose nanocrystals placement in the performance of thin-film composite (TFC) membrane. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118581] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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11
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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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12
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An Overview of the Water Remediation Potential of Nanomaterials and Their Ecotoxicological Impacts. WATER 2020. [DOI: 10.3390/w12041150] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Nanomaterials, i.e., those materials which have at least one dimension in the 1–100 nm size range, have produced a new generation of technologies for water purification. This includes nanosized adsorbents, nanomembranes, photocatalysts, etc. On the other hand, their uncontrolled release can potentially endanger biota in various environmental domains such as soil and water systems. In this review, we point out the opportunities created by the use of nanomaterials for water remediation and also the adverse effects of such small potential pollutants on the environment. While there is still a large need to further identify the potential hazards of nanomaterials through extensive lab or even field studies, an overview on the current knowledge about the pros and cons of such systems should be helpful for their better implementation.
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13
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Antibacterial biohybrid nanofibers for wound dressings. Acta Biomater 2020; 107:25-49. [PMID: 32084600 DOI: 10.1016/j.actbio.2020.02.022] [Citation(s) in RCA: 277] [Impact Index Per Article: 69.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 02/13/2020] [Accepted: 02/13/2020] [Indexed: 02/07/2023]
Abstract
Globally, chronic wounds impose a notable burden to patients and healthcare systems. Such skin wounds are readily subjected to bacteria that provoke inflammation and hence challenge the healing process. Furthermore, bacteria induce infection impeding re-epithelialization and collagen synthesis. With an estimated global market of $20.4 billion by 2021, appropriate wound dressing materials e.g. those composed of biopolymers originating from nature, are capable of alleviating the infection incidence and of accelerating the healing process. Particularly, biopolymeric nanofibrous dressings are biocompatible and mostly biodegradable and biomimic the extracellular matrix structure. Such nanofibrous dressings provide a high surface area and the ability to deliver antibiotics and antibacterial agents locally into the wound milieu to control infection. In this regard, with the dangerous evolution of antibiotic resistant bacteria, antibiotic delivery systems are being gradually replaced with antibacterial biohybrid nanofibrous wound dressings. This emerging class of wound dressings comprises biopolymeric nanofibers containing antibacterial nanoparticles, nature-derived compounds and biofunctional agents. Here, the most recent (since 2015) developments of antibacterial biopolymeric nanofibrous wound dressings, particularly those made of biohybrids, are reviewed and their antibacterial efficiency is evaluated based on a comprehensive literature analysis. Lastly, the prospects and challenges are discussed to draw a roadmap for further progresses and to open up future research avenues in this area. STATEMENT OF SIGNIFICANCE: With a global market of $20.4 billion by 2021, skin wound dressings are a crucial segment of the wound care industry. As an advanced class of bioactive wound dressing materials, natural polymeric nanofibers loaded with antibacterial agents, e.g. antimicrobial nanoparticles/ions, nature-derived compounds and biofunctional agents, have shown a remarkable potential for replacement of their classic counterparts. Also, given the expanding concern regarding antibiotic resistant bacteria, such biohybrid nanofibrous wound dressings can outperform classical drug delivery systems. Here, an updated overview of the most recent (since 2015) developments of antibacterial biopolymeric nanofibrous wound dressings is presented. In this review, while discussing about the antibacterial efficiency of such systems, the prospects and challenges are highlighted to draw a roadmap for further progresses in this area.
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Homaeigohar S, Kabir R, Elbahri M. Size-Tailored Physicochemical Properties of Monodisperse Polystyrene Nanoparticles and the Nanocomposites Made Thereof. Sci Rep 2020; 10:5191. [PMID: 32251319 PMCID: PMC7090031 DOI: 10.1038/s41598-020-62095-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Accepted: 02/11/2020] [Indexed: 11/09/2022] Open
Abstract
The latex monodisperse polystyrene (PS) colloids are important for different advanced applications (e.g. in coating, biotechnology etc.). However, the size dependency of their structural properties that impacts the characteristics of the nanocomposites composed thereof is largely unknown. Here, monodisperse PS nanoparticles (MPNPs) are synthesized via emulsion polymerization in five sizes (50, 150, 300, 350, and 450 nm). The size of the PS MPNPs is tailored by controlling the reaction time, temperature, and amount of surfactant and initiator. The correlation between the particle size and structural properties of the PS MPNPs is established by different thermomechanical and optical characterizations. The smaller particles (50 and 150 nm) show a lower glass transition (Tg) and thermal decomposition temperature and a lower Raman peak intensity. Yet, they trigger a higher IR absorption, thanks to a larger surface area. When incorporated in a polyvinyl alcohol (PVA) matrix, the smaller particles impart the resulting nanocomposite a higher tensile strength, and elastic and storage moduli. Whereas, they decline the elongation and loss factor. The very few examples of the MPNPs incorporated polymeric nanocomposites have been unstudied from this perspective. Thus, these tangible knowledge can profit scalable production of this kind of nanocomposite materials for different applications in a cost/energy efficient manner.
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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
| | - Rakibul Kabir
- Econic Technology Ltd, Alderley Park, Macclesfield, SK10 4TG, UK
| | - Mady Elbahri
- Nanochemistry and Nanoengineering, Department of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, Kemistintie 1, 00076, Aalto, Finland.
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15
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Jang W, Park Y, Park C, Seo Y, Kim JH, Hou J, Byun H. Regulating the integrity of diverse composite nanofiber membranes using an organoclay. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2019.117670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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16
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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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17
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Abd Elhaleem MB, Farghali AA, El-Shahawy AAG, Abo El-Ela FI, Eldine ZE, Mahmoud RK. Chemisorption and sustained release of cefotaxime between a layered double hydroxide and polyvinyl alcohol nanofibers for enhanced efficacy against second degree burn wound infection. RSC Adv 2020; 10:13196-13214. [PMID: 35492140 PMCID: PMC9051420 DOI: 10.1039/c9ra08355c] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 02/19/2020] [Indexed: 12/31/2022] Open
Abstract
Zn–Al layered double hydroxides (LDHs) were synthesized by a chemical method, while polyvinyl alcohol (PVA) nanofibers were fabricated by an electrospinning approach; we also synthesized Zn–Al LDH/cefotaxime (cefotax), Zn–Al LDH@PVA, and Zn–Al LDH/cefotax@PVA (LCP). Characterizations were performed by X-ray diffraction, Fourier transform infrared spectroscopy, field emission scanning electron microscopy, high-resolution transmission electron microscopy, energy dispersive X-ray spectroscopy, Brunauer–Emmett–Teller analysis, thermogravimetric-differential thermal analysis techniques, dynamic light scattering, X ray-florescence, and carbon, hydrogen, and nitrogen (CHN) analyses. The adsorption isotherm of cefotax and its entrapment percentage, release, and kinetics were also investigated. The results confirmed the elemental constituents of the mentioned formulas, which exhibited different degrees of crystallinity and different morphologies. Besides, these formulas were tested in vitro as antimicrobial agents and applied in vivo against second-degree wound burns induced in rats' skin. The adsorption of cefotax occurred chemically, and the experimental data were fitted with different isotherm models, where the Freundlich and Toth models gave the best fits. The entrapment percentage in LDH/cefotax was 77.41% and in LDH/cefotax@PVA, it was 67.83%. The sustained release of cefotax from LDH and LCP was attainable; the release percentages were 89.31% and 81.55% in up to 12 h, respectively. The release kinetics of cefotax from LDH fitted well with first-order kinetics, while that for LCP was parabolic. The formulas showed uneven antimicrobial effects against Gram-positive and Gram-negative bacteria; the best effect was exhibited by Zn–Al LDH/cefotax@PVA due to its sustained release. Finally, investigating the possibility of using these formulas in the clinical setting should be considered. This study succeeded to formulate, characterize, and investigate cefotax release and kinetics, and to compare cetofax with other known antibacterial agents.![]()
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Affiliation(s)
| | - Ahmed A. Farghali
- Materials Science and Nanotechnology Dept
- Faculty of Postgraduate Studies for Advanced Sciences (PSAS)
- Beni-Suef University
- Beni-Suef
- Egypt
| | - Ahmed. A. G. El-Shahawy
- Materials Science and Nanotechnology Dept
- Faculty of Postgraduate Studies for Advanced Sciences (PSAS)
- Beni-Suef University
- Beni-Suef
- Egypt
| | - Fatma I. Abo El-Ela
- Pharmacology Department
- Faculty of Veterinary Medicine
- Beni-Suef University
- 62511 Beni-Suef
- Egypt
| | - Zienab E. Eldine
- Materials Science and Nanotechnology Dept
- Faculty of Postgraduate Studies for Advanced Sciences (PSAS)
- Beni-Suef University
- Beni-Suef
- Egypt
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18
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Ehsani M, Aroujalian A. Fabrication of electrospun polyethersulfone/titanium dioxide (PES/TiO
2
) composite nanofibers membrane and its application for photocatalytic degradation of phenol in aqueous solution. POLYM ADVAN TECHNOL 2019. [DOI: 10.1002/pat.4813] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Masoume Ehsani
- Department of Chemical EngineeringAmirkabir University of Technology (Tehran Polytechnic) Hafez Ave., P.O. Box 15875‐4413, Tehran Iran
| | - Abdolreza Aroujalian
- Department of Chemical EngineeringAmirkabir University of Technology (Tehran Polytechnic) Hafez Ave., P.O. Box 15875‐4413, Tehran Iran
- Food Process Engineering and Biotechnology Research Center, Amirkabir University of Technology (Tehran Polytechnic) Hafez Ave., P.O. Box 15875‐4413, Tehran Iran
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19
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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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20
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Zeolitic imidazolate framework-polyvinylpyrrolidone-polyethersulfone composites membranes: From synthesis to the detailed pollutant removal from wastewater using cross flow system. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.03.093] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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21
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Esfahani MR, Aktij SA, Dabaghian Z, Firouzjaei MD, Rahimpour A, Eke J, Escobar IC, Abolhassani M, Greenlee LF, Esfahani AR, Sadmani A, Koutahzadeh N. Nanocomposite membranes for water separation and purification: Fabrication, modification, and applications. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.12.050] [Citation(s) in RCA: 237] [Impact Index Per Article: 47.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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22
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Wang J, Liang J, Sun L, Gao S. PVA/CS and PVA/CS/Fe gel beads' synthesis mechanism and their performance in cultivating anaerobic granular sludge. CHEMOSPHERE 2019; 219:130-139. [PMID: 30537586 DOI: 10.1016/j.chemosphere.2018.12.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 11/14/2018] [Accepted: 12/02/2018] [Indexed: 06/09/2023]
Abstract
Biomass washout from high-speed anaerobic suspended bed bio-reactors is still a challenge to their stable operation. Preserving active biomass to efficiently retain biomass in the reactor is one of the solutions to this problem. Herein, two carriers (polyvinyl alcohol/chitosan (PVA/CS) and PVA/CS/Fe gel beads) were prepared using the cross-linking method. The fourier transform infrared (FTIR) and 13C nuclear magnetic resonance (13C NMR) analyses showed that PVA/CS gel beads formed mainly through hydrogen-bonds (NH2OH-). Furthermore, FTIR, 13C NMR, energy dispersive spectrum (EDS), X-ray diffractometer (XRD) and X-ray photoelectron spectroscopy (XPS) analyses showed that PVA/CS/Fe gel beads formed mainly through chelate bond (NH2-FeM+OH-). The scanning electron microscope (SEM) results affirmed that the gel beads had rough and well-developed porous structure for the attachment of microbes. Furthermore, the abilities of gel beads on the cultivation of granular sludge in an up-flow anaerobic sludge bed (UASB) reactor were effectively demonstrated while treating wastewater polluted with glucose and alkali lignin. The results showed that the gel beads-assisted reactors had a higher performance than those without the gel beads. The cultivation of granules in these reactors was accelerated, while the granules became bigger and exhibited better settling velocities. The reactor with gel beads was easier to withstand a higher organic loading rate due to dense microbial aggregates, which were caused by more humic-like substance. Particularly, the reactor with PVA/CS/Fe gel beads was able to improve the overall robustness of the system due to stronger mechanical properties of gel beads, and also prevented cells detachment.
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Affiliation(s)
- Jinxing Wang
- Department of Environmental Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jidong Liang
- Department of Environmental Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Li Sun
- Department of Environmental Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Sha Gao
- Department of Environmental Engineering, Xi'an Jiaotong University, Xi'an 710049, China
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23
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Ups and Downs of Water Photodecolorization by Nanocomposite Polymer Nanofibers. NANOMATERIALS 2019; 9:nano9020250. [PMID: 30759854 PMCID: PMC6410213 DOI: 10.3390/nano9020250] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 02/06/2019] [Accepted: 02/09/2019] [Indexed: 11/17/2022]
Abstract
Given the exponentially expanding water pollution causing water scarcity, there is an urgent need for operative nanotechnological systems that can purify water, with insignificant energy consumption, and rapidly. Here, we introduce a nanocomposite system based on TiO2 nanoparticles (NPs) and PES nanofibers (NFs) that can adsorb and then photodecompose organic water pollutants such as dye molecules. We evaluate pros and cons of this system with respect to its purification efficiency and structural properties that can be impacted by the photocatalytic activity of the nanofillers. While the material is superhydrophilic and able to remove 95% methylene blue (MB) from water via adsorption/photodecomposition, its thermomechanical properties decline upon UV irradiation. However, these properties still remain at the level of the neat NFs. The removal behavior is modeled by the first- and second-order kinetic models from the kinetic point of view. The nanocomposite NFs’ removal behavior complies much better with the second-order kinetic model. Overall, such feedbacks implied that the nanocomposite can be effectively applied for water treatment and the structural properties are still as reliable as those of the neat counterpart.
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24
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Wu YJ, Xiao CF, Zhao J. Preparation of an electrospun tubular PU/GE nanofiber membrane for high flux oil/water separation. RSC Adv 2019; 9:33722-33732. [PMID: 35528880 PMCID: PMC9073539 DOI: 10.1039/c9ra04253a] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Accepted: 09/04/2019] [Indexed: 11/21/2022] Open
Abstract
A simple, tubular structure polyurethane/graphene (PU/GE) nanofiber membrane for continuous oil/water separation has been prepared.
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Affiliation(s)
- Yan-jie Wu
- School of Textiles
- State Key Laboratory of Separation Membranes and Membrane Processes
- Tianjin Polytechnic University
- Tianjin 300387
- P. R. China
| | - Chang-fa Xiao
- School of Textiles
- State Key Laboratory of Separation Membranes and Membrane Processes
- Tianjin Polytechnic University
- Tianjin 300387
- P. R. China
| | - Jian Zhao
- School of Textiles
- State Key Laboratory of Separation Membranes and Membrane Processes
- Tianjin Polytechnic University
- Tianjin 300387
- P. R. China
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25
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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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26
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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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27
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Sundaran SP, C. R. R, A. S. Tailored design of polyurethane based fouling-tolerant nanofibrous membrane for water treatment. NEW J CHEM 2018. [DOI: 10.1039/c7nj03997b] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Polyurethane (PU) nanofibers have gained attention due to their good mechanical properties and water resistance.
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Affiliation(s)
- Suja P. Sundaran
- Materials Research Laboratory
- Department of Chemistry
- National Institute of Technology Calicut
- Calicut-673601
- India
| | - Reshmi C. R.
- Materials Research Laboratory
- Department of Chemistry
- National Institute of Technology Calicut
- Calicut-673601
- India
| | - Sujith A.
- Materials Research Laboratory
- Department of Chemistry
- National Institute of Technology Calicut
- Calicut-673601
- India
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28
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Homaeigohar S, Davoudpour Y, Habibi Y, Elbahri M. The Electrospun Ceramic Hollow Nanofibers. NANOMATERIALS (BASEL, SWITZERLAND) 2017; 7:E383. [PMID: 29120403 PMCID: PMC5707600 DOI: 10.3390/nano7110383] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 11/01/2017] [Accepted: 11/06/2017] [Indexed: 12/13/2022]
Abstract
Hollow nanofibers are largely gaining interest from the scientific community for diverse applications in the fields of sensing, energy, health, and environment. The main reasons are: their extensive surface area that increases the possibilities of engineering, their larger accessible active area, their porosity, and their sensitivity. In particular, semiconductor ceramic hollow nanofibers show greater space charge modulation depth, higher electronic transport properties, and shorter ion or electron diffusion length (e.g., for an enhanced charging-discharging rate). In this review, we discuss and introduce the latest developments of ceramic hollow nanofiber materials in terms of synthesis approaches. Particularly, electrospinning derivatives will be highlighted. The electrospun ceramic hollow nanofibers will be reviewed with respect to their most widely studied components, i.e., metal oxides. These nanostructures have been mainly suggested for energy and environmental remediation. Despite the various advantages of such one dimensional (1D) nanostructures, their fabrication strategies need to be improved to increase their practical use. The domain of nanofabrication is still advancing, and its predictable shortcomings and bottlenecks must be identified and addressed. Inconsistency of the hollow nanostructure with regard to their composition and dimensions could be one of such challenges. Moreover, their poor scalability hinders their wide applicability for commercialization and industrial use.
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Affiliation(s)
- Shahin Homaeigohar
- Nanochemistry and Nanoengineering, School of Chemical Engineering, Department of Chemistry and Materials Science, Aalto University, Kemistintie 1, 00076 Aalto, Finland.
| | - Yalda Davoudpour
- The Institute of Mineralogy, Crystallography and Material Science, Faculty of Chemistry and Mineralogy, University of Leipzig, 04109 Leipzig, Germany.
| | - Youssef Habibi
- Department of Materials Research and Technology (MRT), Luxembourg Institute of Science and Technology (LIST), L-4362 Esch-sur-Alzette, Luxembourg.
| | - Mady Elbahri
- Nanochemistry and Nanoengineering, School of Chemical Engineering, Department of Chemistry and Materials Science, Aalto University, Kemistintie 1, 00076 Aalto, Finland.
- Nanochemistry and Nanoengineering, Institute for Materials Science, Faculty of Engineering, Christian-Albrechts-Universität zu Kiel, Kaiserstrasse 2, 24143 Kiel, Germany.
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29
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Uzal N, Ates N, Saki S, Bulbul YE, Chen Y. Enhanced hydrophilicity and mechanical robustness of polysulfone nanofiber membranes by addition of polyethyleneimine and Al2O3 nanoparticles. Sep Purif Technol 2017. [DOI: 10.1016/j.seppur.2017.06.047] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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30
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Kalwar K, Hu L, Li DL, Shan D. AgNPs incorporated on deacetylated electrospun cellulose nanofibers and their effect on the antimicrobial activity. POLYM ADVAN TECHNOL 2017. [DOI: 10.1002/pat.4127] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Kaleemullah Kalwar
- Sino-French Laboratory of Biomaterials and Bioanalytical Chemistry, School of Environmental and Biological Engineering; Nanjing University of Science and Technology; Nanjing 210094 China
| | - Lin Hu
- Sino-French Laboratory of Biomaterials and Bioanalytical Chemistry, School of Environmental and Biological Engineering; Nanjing University of Science and Technology; Nanjing 210094 China
| | - Da-Li Li
- Sino-French Laboratory of Biomaterials and Bioanalytical Chemistry, School of Environmental and Biological Engineering; Nanjing University of Science and Technology; Nanjing 210094 China
| | - Dan Shan
- Sino-French Laboratory of Biomaterials and Bioanalytical Chemistry, School of Environmental and Biological Engineering; Nanjing University of Science and Technology; Nanjing 210094 China
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31
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Ahmadi A, Qanati O, Seyed Dorraji M, Rasoulifard M, Vatanpour V. Investigation of antifouling performance a novel nanofibrous S-PVDF/PVDF and S-PVDF/PVDF/GO membranes against negatively charged oily foulants. J Memb Sci 2017. [DOI: 10.1016/j.memsci.2017.04.056] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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32
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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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33
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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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34
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Bui NN, McCutcheon JR. Nanoparticle-embedded nanofibers in highly permselective thin-film nanocomposite membranes for forward osmosis. J Memb Sci 2016. [DOI: 10.1016/j.memsci.2016.06.024] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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35
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A Novel Nanohybrid Nanofibrous Adsorbent for Water Purification from Dye Pollutants. MATERIALS 2016; 9:ma9100848. [PMID: 28773968 PMCID: PMC5456603 DOI: 10.3390/ma9100848] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 10/06/2016] [Accepted: 10/10/2016] [Indexed: 11/24/2022]
Abstract
In this study, we devised a novel nanofibrous adsorbent made of polyethersulfone (PES) for removal of methylene blue (MB) dye pollutant from water. The polymer shows a low isoelectric point thus at elevated pHs and, being nanofibrous, can offer a huge highly hydroxylated surface area for adsorption of cationic MB molecules. As an extra challenge, to augment the adsorbent’s properties in terms of adsorption capacity in neutral and acidic conditions and thermal stability, vanadium pentoxide (V2O5) nanoparticles were added to the nanofibers. Adsorption data were analyzed according to the Freundlich adsorption model. The thermodynamic parameters verified that only at basic pH is the adsorption spontaneous and in general the process is entropy-driven and endothermic. The kinetics of the adsorption process was evaluated by the pseudo-first- and pseudo-second-order models. The latter model exhibited the highest correlation with data. In sum, the adsorbent showed a promising potential for dye removal from industrial dyeing wastewater systems, especially when envisaging their alkaline and hot conditions.
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Khalil R, Homaeigohar S, Häußler D, Elbahri M. A shape tailored gold-conductive polymer nanocomposite as a transparent electrode with extraordinary insensitivity to volatile organic compounds (VOCs). Sci Rep 2016; 6:33895. [PMID: 27654345 PMCID: PMC5032166 DOI: 10.1038/srep33895] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 09/05/2016] [Indexed: 12/04/2022] Open
Abstract
In this study, the transparent conducting polymer of poly (3,4-ethylenendioxythiophene): poly(styrene sulphonate) (PEDOT:PSS) was nanohybridized via inclusion of gold nanofillers including nanospheres (NSs) and nanorods (NRs). Such nanocomposite thin films offer not only more optimum conductivity than the pristine polymer but also excellent resistivity against volatile organic compounds (VOCs). Interestingly, such amazing properties are achieved in the diluted regimes of the nanofillers and depend on the characteristics of the interfacial region of the polymer and nanofillers, i.e. the aspect ratio of the latter component. Accordingly, a shape dependent response is made that is more desirable in case of using the Au nanorods with a much larger aspect ratio than their nanosphere counterparts. This transparent nanocomposite thin film with an optimized conductivity and very low sensitivity to organic gases is undoubtedly a promising candidate material for the touch screen panel production industry. Considering PEDOT as a known material for integrated electrodes in energy saving applications, we believe that our strategy might be an important progress in the field.
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Affiliation(s)
- Rania Khalil
- Nanochemistry and Nanoengineering, Faculty of Engineering, University of Kiel, Institute for Materials Science, Kaiserstrasse 2, 24143 Kiel, Germany
- Physics Department, Faculty of Science, Zagazig University 44519, Zagazig, Egypt
| | - Shahin Homaeigohar
- Nanochemistry and Nanoengineering, Faculty of Engineering, University of Kiel, Institute for Materials Science, Kaiserstrasse 2, 24143 Kiel, Germany
- Nanochemistry and Nanoengineering, School of Chemical Technology, Department of Chemistry and Materials Science and Engineering, Aalto University, Kemistintie 1, 00076 Aalto, Finland
| | - Dietrich Häußler
- Faculty of Engineering, University of Kiel, Institute for Materials Science, Synthesis and Real Structure Group, Kaiserstrasse 2,24143 Kiel, Germany
| | - Mady Elbahri
- Nanochemistry and Nanoengineering, Faculty of Engineering, University of Kiel, Institute for Materials Science, Kaiserstrasse 2, 24143 Kiel, Germany
- Nanochemistry and Nanoengineering, School of Chemical Technology, Department of Chemistry and Materials Science and Engineering, Aalto University, Kemistintie 1, 00076 Aalto, Finland
- Nanochemistry and Nanoengineering, Helmholtz-Zentrum Geesthacht, Max-Planck-Str.1, 21502, Geesthacht, Germany
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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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Fabrication of electrospun nanocomposite polyethersulfone membrane for microfiltration. Polym Bull (Berl) 2016. [DOI: 10.1007/s00289-016-1607-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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High flux electrospun nanofiberous membrane: Preparation by statistical approach, characterization, and microfiltration assessment. J Taiwan Inst Chem Eng 2016. [DOI: 10.1016/j.jtice.2015.07.033] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Zillohu AU, Abdelaziz R, Homaeigohar S, Krasnov I, Müller M, Strunskus T, Elbahri M. Biomimetic transferable surface for a real time control over wettability and photoerasable writing with water drop lens. Sci Rep 2014; 4:7407. [PMID: 25491016 PMCID: PMC4261171 DOI: 10.1038/srep07407] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Accepted: 11/20/2014] [Indexed: 11/09/2022] Open
Abstract
We demonstrate a transferable device that can turn wettability of surfaces to sticky or slippy, as per requirement. It is composed of polymeric yarn with a fibrous structure, which can be lifted and placed on any surface to render it the unique wettability properties. We introduce Polyvinylidenefluoride (PVDF) random fiber as biomimetic rose petal surface. When it is decorated with PVDF nanofibers yarns, the random mesh transform from rose petal sticky state into grass leaf slippy state. When it is placed on sticky, hydrophilic metal coin, it converts the surface of the coin to super hydrophobic. Adjustments in the yarn system, like interyarn spacing, can be done in real time to influence its wettability, which is a unique feature. Next, we load the polymer with a photochromic compound for chemical restructuring. It affects the sliding angle of water drop and makes the fibers optically active. We also demonstrate a "water droplets lens" concept that enables erasable writing on photochromic rose petal sticky fibrous surface. The droplet on a highly hydrophobic surface acts as a ball lens to concentrate light onto a hot spot; thereby we demonstrate UV light writing with water lenses and visible light erasing.
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Affiliation(s)
- Ahnaf Usman Zillohu
- 1] Institute of Polymer Research, Nanochemistry and Nanoengineering, Helmholtz-Zentrum Geesthacht, Max-Planck-Strasse 1, 21502 Geesthacht, Germany [2] Nanochemistry and Nanoengineering, Faculty of Engineering, Institute for Materials Science, University of Kiel, Kaiserstrasse 2, 24143 Kiel, Germany
| | - Ramzy Abdelaziz
- 1] Nanochemistry and Nanoengineering, Faculty of Engineering, Institute for Materials Science, University of Kiel, Kaiserstrasse 2, 24143 Kiel, Germany [2] Refractories, Ceramics and Building Materials Department, National Research Centre, Dokki, Cairo, Egypt
| | - Shahin Homaeigohar
- Institute of Polymer Research, Nanochemistry and Nanoengineering, Helmholtz-Zentrum Geesthacht, Max-Planck-Strasse 1, 21502 Geesthacht, Germany
| | - Igor Krasnov
- Institute of Materials Research, Helmholtz-Zentrum Geesthacht, Max-Planck-Strasse 1, 21502 Geesthacht, Germany
| | - Martin Müller
- Institute of Materials Research, Helmholtz-Zentrum Geesthacht, Max-Planck-Strasse 1, 21502 Geesthacht, Germany
| | - Thomas Strunskus
- Chair for Multicomponent Materials, Faculty of Engineering, Institute for Materials Science, University of Kiel, Kaiserstrasse 2, 24143 Kiel, Germany
| | - Mady Elbahri
- 1] Institute of Polymer Research, Nanochemistry and Nanoengineering, Helmholtz-Zentrum Geesthacht, Max-Planck-Strasse 1, 21502 Geesthacht, Germany [2] Nanochemistry and Nanoengineering, Faculty of Engineering, Institute for Materials Science, University of Kiel, Kaiserstrasse 2, 24143 Kiel, Germany
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Ong YK, Chung TS. Mitigating the hydraulic compression of nanofiltration hollow fiber membranes through a single-step direct spinning technique. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2014; 48:13933-13940. [PMID: 25382631 DOI: 10.1021/es503258s] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Most nanofiltration (NF) membranes have been made through complicated multistep or thin-film composite processes. They also suffer the compaction issue that reduces permeate flux in pressure-driven filtration processes. A single-step coextrusion hollow fiber fabrication technique via immiscibility induced phase separation (I(2)PS) process is presented in this study to fabricate NF hollow fiber membranes. A protective layer is concurrently formed on top of the selective layer during the phase inversion process. The fabricated hollow fiber membrane has a narrow pore size distribution with a molecular weight cutoff (MWCO) of 470 Da. The outer layer of the I(2)PS hollow fiber is found to serve as a buffering layer that mitigates hydraulic compression on the compaction of dense-selective layer and sublayer and helps to retain membrane performance during nanofiltration operations. The newly fabricated NF hollow fiber membrane exhibits an average pure water permeability of 3.2 L m(-2) h(-1) bar(-1) and shows good rejections toward the testing dyes. This study may offer a simple, direct, and cost-effective approach to fabricate NF hollow fiber membranes.
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Affiliation(s)
- Yee Kang Ong
- Department of Chemical & Biomolecular Engineering, National University of Singapore , 4 Engineering Drive 4, Singapore 117585, Singapore
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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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Homaeigohar S, Disci-Zayed D, Dai T, Elbahri M. Biofunctionalized nanofibrous membranes mimicking carnivorous plants. BIOINSPIRED BIOMIMETIC AND NANOBIOMATERIALS 2013. [DOI: 10.1680/bbn.13.00006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Homaeigohar S, Dai T, Elbahri M. Biofunctionalized nanofibrous membranes as super separators of protein and enzyme from water. J Colloid Interface Sci 2013; 406:86-93. [DOI: 10.1016/j.jcis.2013.05.076] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Revised: 05/28/2013] [Accepted: 05/31/2013] [Indexed: 11/28/2022]
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The solvent induced interfiber adhesion and its influence on the mechanical and filtration properties of polyethersulfone electrospun nanofibrous microfiltration membranes. Sep Purif Technol 2012. [DOI: 10.1016/j.seppur.2012.06.027] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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