1
|
Zainuddin MIF, Ahmad AL, Shah Buddin MMH. Polydimethylsiloxane/Magnesium Oxide Nanosheet Mixed Matrix Membrane for CO 2 Separation Application. MEMBRANES 2023; 13:membranes13030337. [PMID: 36984724 PMCID: PMC10051079 DOI: 10.3390/membranes13030337] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/02/2023] [Accepted: 03/08/2023] [Indexed: 05/31/2023]
Abstract
Carbon dioxide (CO2) concentration is now 50% higher than in the preindustrial period and efforts to reduce CO2 emission through carbon capture and utilization (CCU) are blooming. Membranes are one of the attractive alternatives for such application. In this study, a rubbery polymer polydimethylsiloxane (PDMS) membrane is incorporated with magnesium oxide (MgO) with a hierarchically two-dimensional (2D) nanosheet shape for CO2 separation. The average thickness of the synthesized MgO nanosheet in this study is 35.3 ± 1.5 nm. Based on the pure gas separation performance, the optimal loading obtained is at 1 wt.% where there is no observable significant agglomeration. CO2 permeability was reduced from 2382 Barrer to 1929 Barrer while CO2/N2 selectivity increased from only 11.4 to 12.7, and CO2/CH4 remained relatively constant when the MMM was operated at 2 bar and 25 °C. Sedimentation of the filler was observed when the loading was further increased to 5 wt.%, forming interfacial defects on the bottom side of the membrane and causing increased CO2 gas permeability from 1929 Barrer to 2104 Barrer as compared to filler loading at 1 wt.%, whereas the CO2/N2 ideal selectivity increased from 12.1 to 15.0. Additionally, this study shows that there was no significant impact of pressure on separation performance. There was a linear decline of CO2 permeability with increasing upstream pressure while there were no changes to the CO2/N2 and CO2/CH4 selectivity.
Collapse
Affiliation(s)
- Muhd Izzudin Fikry Zainuddin
- School of Chemical Engineering, Universiti Sains Malaysia Engineering Campus, Nibong Tebal 14300, Pulau Pinang, Malaysia
| | - Abdul Latif Ahmad
- School of Chemical Engineering, Universiti Sains Malaysia Engineering Campus, Nibong Tebal 14300, Pulau Pinang, Malaysia
| | | |
Collapse
|
2
|
Chen R, Lin B, Luo R. Recent progress in polydopamine-based composites for the adsorption and degradation of industrial wastewater treatment. Heliyon 2022; 8:e12105. [DOI: 10.1016/j.heliyon.2022.e12105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 11/13/2022] [Accepted: 11/28/2022] [Indexed: 12/12/2022] Open
|
3
|
Zainuddin MIF, Ahmad AL. Impact of dope extrusion rate and multilayer polydimethylsiloxane coating on asymmetric polyethersulfone hollow fiber membrane for CO
2
/N
2
and CO
2
/CH
4
separation. ASIA-PAC J CHEM ENG 2022. [DOI: 10.1002/apj.2829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Abdul Latif Ahmad
- School of Chemical Engineering Universiti Sains Malaysia Engineering Campus Nibong Tebal Pulau Pinang Malaysia
| |
Collapse
|
4
|
Filimon A, Dobos AM, Dumbrava O, Doroftei F, Lupa L. Green Blends Based on Ionic Liquids with Improved Performance for Membrane Technology: Perspectives for Environmental Applications. Int J Mol Sci 2022; 23:ijms23147961. [PMID: 35887303 PMCID: PMC9323397 DOI: 10.3390/ijms23147961] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/06/2022] [Accepted: 07/14/2022] [Indexed: 01/27/2023] Open
Abstract
Present research was directed towards the development of new high-performance and cost-effective polysulfone membranes (PSFQ) by introducing ionic liquids (ILs—Cyphos 101 IL and Aliquat 336) into their matrix. Variation of ILs was performed with the aim to find the one that brings new properties and improves the functionality and selectivity of PSFQ membranes in ultrafiltration processes. Based on the obtained results of the rheological study, we established the compatibility of compounds and optimal content of the used ILs, namely 3 wt% and 15 wt% Cyphos 101 IL and compositions varying between 3 and 15 wt % Aliquat 336. Results indicated that the ILs acted as plasticizers when they were added to the system, a helpful aspect in processing membranes used in water decontamination. The efficiency and performance of the membranes were evaluated by their use in the treatment of diclofenac (DCF)-containing waters. Membranes obtained from PSFQ/Aliquat 336 solution containing 15 wt% IL exhibited a 97% removal degree of DCF in the treatment process of 50 mL solution containing 3 mg/L DCF. The separation efficiency was kept constant for four filtration/cleaning cycles. The results indicated an improvement in membrane performance as the amount of IL in their structure increased, which confirms the potential for application in water treatment processes.
Collapse
Affiliation(s)
- Anca Filimon
- Polycondensation and Thermostable Polymers Department, “Petru Poni” Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41A, 700487 Iasi, Romania; (A.M.D.); (O.D.)
- Correspondence:
| | - Adina Maria Dobos
- Polycondensation and Thermostable Polymers Department, “Petru Poni” Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41A, 700487 Iasi, Romania; (A.M.D.); (O.D.)
| | - Oana Dumbrava
- Polycondensation and Thermostable Polymers Department, “Petru Poni” Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41A, 700487 Iasi, Romania; (A.M.D.); (O.D.)
| | - Florica Doroftei
- Physics of Polymers and Polymeric Materials Department, “Petru Poni” Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41A, 700487 Iasi, Romania;
| | - Lavinia Lupa
- Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University Timisoara, 6 Vasile Parvan Blv, 300223 Timisoara, Romania;
| |
Collapse
|
5
|
Kiani S, Raisi A. Evaluation of polyurethane/nylon 6(3) blend membranes for enhanced
CO
2
separation. J Appl Polym Sci 2022. [DOI: 10.1002/app.52812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Sahar Kiani
- Department of Chemical Engineering Amirkabir University of Technology (Tehran Polytechnic) Tehran Iran
| | - Ahmadreza Raisi
- Department of Chemical Engineering Amirkabir University of Technology (Tehran Polytechnic) Tehran Iran
| |
Collapse
|
6
|
Huang N, Wang C, Chen C. Investigation of the gas permeation properties of a polyether sulfone asymmetric membrane via the phase inversion method. J Appl Polym Sci 2022. [DOI: 10.1002/app.52762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Nai‐Yi Huang
- Department of Chemical Engineering National Cheng Kung University Tainan Taiwan, ROC
| | - Cheng‐Chien Wang
- Department of Chemical and Materials Engineering Southern Taiwan University of Science and Technology Tainan Taiwan, ROC
| | - Chuh‐Yung Chen
- Department of Chemical Engineering National Cheng Kung University Tainan Taiwan, ROC
| |
Collapse
|
7
|
Manholi S, Athiyanathil S. Poly (ε‐caprolactone)‐based porous membranes for filtration applications—effect of solvents on precipitation kinetics, performance, and morphology. J Appl Polym Sci 2022. [DOI: 10.1002/app.51720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Smitha Manholi
- Materials Research Laboratory, Department of Chemistry National Institute of Technology Calicut Calicut India
| | - Sujith Athiyanathil
- Materials Research Laboratory, Department of Chemistry National Institute of Technology Calicut Calicut India
| |
Collapse
|
8
|
Maleh MS, Kiani S, Raisi A. Study on the advantageous effect of nano-clay and polyurethane on structure and CO2 separation performance of polyethersulfone based ternary mixed matrix membranes. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.01.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
9
|
Cationic, anionic and neutral polysaccharides for skin tissue engineering and wound healing applications. Int J Biol Macromol 2021; 192:298-322. [PMID: 34634326 DOI: 10.1016/j.ijbiomac.2021.10.013] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 09/25/2021] [Accepted: 10/03/2021] [Indexed: 12/17/2022]
Abstract
Today, chronic wound care and management can be regarded as a clinically critical issue. However, the limitations of current approaches for wound healing have encouraged researchers and physicians to develop more efficient alternative approaches. Advances in tissue engineering and regenerative medicine have resulted in the development of promising approaches that can accelerate wound healing and improve the skin regeneration rate and quality. The design and fabrication of scaffolds that can address the multifactorial nature of chronic wound occurrence and provide support for the healing process can be considered an important area requiring improvement. In this regard, polysaccharide-based scaffolds have distinctive properties such as biocompatibility, biodegradability, high water retention capacity and nontoxicity, making them ideal for wound healing applications. Their tunable structure and networked morphology could facilitate a number of functions, such as controlling their diffusion, maintaining wound moisture, absorbing a large amount of exudates and facilitating gas exchange. In this review, the wound healing process and the influential factors, structure and properties of carbohydrate polymers, physical and chemical crosslinking of polysaccharides, scaffold fabrication techniques, and the use of polysaccharide-based scaffolds in skin tissue engineering and wound healing applications are discussed.
Collapse
|
10
|
Cacao Pod Husk Extract Phenolic Nanopowder-Impregnated Cellulose Acetate Matrix for Biofouling Control in Membranes. MEMBRANES 2021; 11:membranes11100748. [PMID: 34677514 PMCID: PMC8538598 DOI: 10.3390/membranes11100748] [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: 09/07/2021] [Revised: 09/22/2021] [Accepted: 09/27/2021] [Indexed: 11/17/2022]
Abstract
The ultrafiltration membrane process is widely used for fruit juice clarification, yet the occurring of fouling promotes a decline in process efficiency. To reduce the fouling potential in the membrane application in food processing, the use of natural phenolic compounds extracted from cocoa pod husk is investigated. The cocoa pod husk extract (CPHE) was prepared in phenolic nanoparticles form and added into the polymer solution at varying concentrations of 0.5 wt%, 0.75 wt%, and 1.0 wt%, respectively. The composite membrane was made of a cellulose acetate polymer using DMF (dimethylformamide) and DMAc (dimethylacetamide) solvents. The highest permeability of 2.34 L m−2 h−1 bar−1 was achieved by 1.0 wt% CPHE/CA prepared with the DMAc solvent. CPHE was found to reduce the amount of Escherichia coli attached to the membranes by 90.5% and 70.8% for membranes prepared with DMF and DMAc, respectively. It is concluded that CPHE can be used to control biofouling in the membrane for food applications.
Collapse
|
11
|
Mokhtari F, Azimi B, Salehi M, Hashemikia S, Danti S. Recent advances of polymer-based piezoelectric composites for biomedical applications. J Mech Behav Biomed Mater 2021; 122:104669. [PMID: 34280866 DOI: 10.1016/j.jmbbm.2021.104669] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 04/19/2021] [Accepted: 06/27/2021] [Indexed: 02/07/2023]
Abstract
Over the past decades, electronics have become central to many aspects of biomedicine and wearable device technologies as a promising personalized healthcare platform. Lead-free piezoelectric materials for converting mechanical into electrical energy through piezoelectric transduction are of significant value in a diverse range of technological applications. Organic piezoelectric biomaterials have attracted widespread attention as the functional materials in the biomedical devices due to their advantages of excellent biocompatibility. They include synthetic and biological polymers. Many biopolymers have been discovered to possess piezoelectricity in an appreciable amount, however their investigation is still preliminary. Due to their piezoelectric properties, better known synthetic fluorinated polymers have been intensively investigated and applied in biomedical applications including controlled drug delivery systems, tissue engineering, microfluidic and artificial muscle actuators, among others. Piezoelectric polymers, especially poly (vinylidene fluoride) (PVDF) and its copolymers are increasingly receiving interest as smart biomaterials due to their ability to convert physiological movements to electrical signals when in a controllable and reproducible manner. Despite possessing the greatest piezoelectric coefficients among all piezoelectric polymers, it is often desirable to increase the electrical outputs. The most promising routes toward significant improvements in the piezoelectric response and energy-harvesting performance of such materials is loading them with various inorganic nanofillers and/or applying some modification during the fabrication process. This paper offers a comprehensive review of the principles, properties, and applications of organic piezoelectric biomaterials (polymers and polymer/ceramic composites) with special attention on PVDF-based polymers and their composites in sensors, drug delivery and tissue engineering. Subsequently focuses on the most common fabrication routes to produce piezoelectric scaffolds, tissue and sensors which is electrospinning process. Promising upcoming strategies and new piezoelectric materials and fabrication techniques for these applications are presented to enable a future integration among these applications.
Collapse
Affiliation(s)
- Fatemeh Mokhtari
- Intelligent Polymer Research Institute, University of Wollongong, Wollongong NSW, Australia
| | - Bahareh Azimi
- Department of Civil and Industrial Engineering, University of Pisa, Pisa, Italy; Department. of Civil and Environmental Engineering, Massachusetts Institute of Technology (MIT), Cambridge, MA, USA
| | - Maryam Salehi
- Department of Civil Engineering, The University of Memphis, Memphis, TN, USA
| | - Samaneh Hashemikia
- Faculty of Textile Engineering, Urmia University of Technology, Urmia, Iran
| | - Serena Danti
- Department of Civil and Industrial Engineering, University of Pisa, Pisa, Italy; Department. of Civil and Environmental Engineering, Massachusetts Institute of Technology (MIT), Cambridge, MA, USA.
| |
Collapse
|
12
|
Matindi CN, Hu M, Kadanyo S, Ly QV, Gumbi NN, Dlamini DS, Li J, Hu Y, Cui Z, Li J. Tailoring the morphology of polyethersulfone/sulfonated polysulfone ultrafiltration membranes for highly efficient separation of oil-in-water emulsions using TiO2 nanoparticles. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118868] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
|
13
|
Alihemati Z, Hashemifard SA, Matsuura T, Ismail AF. Feasibility of using polycarbonate as a substrate of thin film composite membrane in forward osmosis. J Appl Polym Sci 2021. [DOI: 10.1002/app.50511] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Z. Alihemati
- Sustainable Membrane Technology Research Group (SMTRG), Faculty of Petroleum, Gas and Petrochemical Engineering (FPGPE) Persian Gulf University (PGU) Bushehr Iran
| | - S. A. Hashemifard
- Sustainable Membrane Technology Research Group (SMTRG), Faculty of Petroleum, Gas and Petrochemical Engineering (FPGPE) Persian Gulf University (PGU) Bushehr Iran
| | - T. Matsuura
- Advanced Membrane Technology Research Centre (AMTEC) Universiti Teknologi Malaysia Skudai Malaysia
- Department of Chemical and Biological Engineering University of Ottawa Ottawa Canada
| | - A. F. Ismail
- Advanced Membrane Technology Research Centre (AMTEC) Universiti Teknologi Malaysia Skudai Malaysia
| |
Collapse
|
14
|
Bărdacă Urducea C, Nechifor AC, Dimulescu IA, Oprea O, Nechifor G, Totu EE, Isildak I, Albu PC, Bungău SG. Control of Nanostructured Polysulfone Membrane Preparation by Phase Inversion Method. NANOMATERIALS 2020; 10:nano10122349. [PMID: 33256125 PMCID: PMC7760602 DOI: 10.3390/nano10122349] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 11/21/2020] [Accepted: 11/23/2020] [Indexed: 12/04/2022]
Abstract
The preparation of membranes from polymer solutions by the phase inversion method, the immersion—precipitation technique has proved since the beginning of obtaining technological membranes the most versatile and simple possibility to create polymeric membrane nanostructures. Classically, the phase inversion technique involves four essential steps: Preparation of a polymer solution in the desired solvent, the formation of the polymer solution film on a flat support, the immersion of the film in a coagulation bath containing polymer solvents, and membrane conditioning. All phase inversion stages are important for the prepared membrane’s nanostructure and have been studied in detail for more than six decades. In this paper, we explored, through an electrochemical technique, the influence of the contact time with the polymer film’s environment until the introduction into the coagulation bath. The system chosen for membrane preparation is polysulfone-dimethylformamide-aqueous ethanol solution (PSf-DMF-EW). The obtained nanostructured membranes were characterized morphologically and structurally by scanning electron microscopy (SEM) and thermal analysis (TA), and in terms of process performance through water permeation and bovine serum albumin retention (BSA). The membrane characteristics were correlated with the polymeric film exposure time to the environment until the contact with the coagulation bath, following the diagram of the electrochemical parameters provided by the electrochemical technique.
Collapse
Affiliation(s)
- Cristina Bărdacă Urducea
- Analytical Chemistry and Environmental Engineering Department, University Politehnica of Bucharest, 011061 Bucharest, Romania; (C.B.U.); (I.A.D.); (G.N.)
| | - Aurelia Cristina Nechifor
- Analytical Chemistry and Environmental Engineering Department, University Politehnica of Bucharest, 011061 Bucharest, Romania; (C.B.U.); (I.A.D.); (G.N.)
- Correspondence: (A.C.N.); (E.E.T.)
| | - Ioana Alina Dimulescu
- Analytical Chemistry and Environmental Engineering Department, University Politehnica of Bucharest, 011061 Bucharest, Romania; (C.B.U.); (I.A.D.); (G.N.)
| | - Ovidiu Oprea
- Department of Inorganic Chemistry, Physical Chemistry and Electrochemistry, University Politehnica of Bucharest, 011061 Bucharest, Romania;
| | - Gheorghe Nechifor
- Analytical Chemistry and Environmental Engineering Department, University Politehnica of Bucharest, 011061 Bucharest, Romania; (C.B.U.); (I.A.D.); (G.N.)
| | - Eugenia Eftimie Totu
- Analytical Chemistry and Environmental Engineering Department, University Politehnica of Bucharest, 011061 Bucharest, Romania; (C.B.U.); (I.A.D.); (G.N.)
- Correspondence: (A.C.N.); (E.E.T.)
| | - Ibrahim Isildak
- Department of Bioengineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, 34210 Esenler-Istanbul, Turkey;
| | - Paul Constantin Albu
- IFIN Horia Hulubei, Radioisotopes & Radiat Metrol Dept DRMR, 30 Reactorului Str, 023465 Magurele, Romania;
| | - Simona Gabriela Bungău
- Faculty of Medicine and Pharmacy, University of Oradea, 1 Universităţii Str., Oradea, 410087 Bihor, Romania;
| |
Collapse
|
15
|
Ashtiani S, Khoshnamvand M, Číhal P, Dendisová M, Randová A, Bouša D, Shaliutina-Kolešová A, Sofer Z, Friess K. Fabrication of a PVDF membrane with tailored morphology and properties via exploring and computing its ternary phase diagram for wastewater treatment and gas separation applications. RSC Adv 2020; 10:40373-40383. [PMID: 35520860 PMCID: PMC9057459 DOI: 10.1039/d0ra07592b] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 11/02/2020] [Indexed: 11/21/2022] Open
Abstract
We report a simple approach for tailoring the morphology of poly(vinylidene fluoride) (PVDF) membranes fabricated using a nonsolvent induced phase separation (NIPS) method that sustains both the hydrophilic and hydrophobic properties. Various membrane structures, i.e. skin layers and whole membrane structures as well, were obtained via an experimental method based on the obtained and computed ternary phase diagram. The nonsolvent interactions with polymer solution resulted in the different forms and properties of a surface layer of fabricated membranes that affected the overall transport of solvent and nonsolvent molecules inside and outside the bulk of the fabricated membranes. The resulting morphology and properties were confirmed using the 3D optical profiler, SEM, FT-IR and XRD methods. The effect of binary interaction parameters on the morphology of the fabricated membranes and on their separation performance was tested using water/oil mixture and gas separation. Both hydrophobic and hydrophilic properties of PVDF showed the excellent durable separation performance of the prepared membranes with 92% of oil separation and the maximum flux of 395 L h-1 m-2 along with 120 min of long-term stability. CO2 separation from H2, N2, CH4 and SF6 gases was performed to further support the effect of tuned PVDF membranes with different micro/nanostructured morphologies. The gas performance demonstrated ultrahigh permeability and a several-fold greater than the Knudsen separation factor. The results demonstrate a facile and inexpensive approach can be successfully applied for the tailoring of the PVDF membranes to predict and design the resulting membrane structure.
Collapse
Affiliation(s)
- S Ashtiani
- Department of Physical Chemistry, University of Chemistry and Technology, Prague Technická 5 16628 Prague 6 Czech Republic
| | - M Khoshnamvand
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences Beijing 100085 China.,University of Chinese Academy of Sciences Beijing 100049 China
| | - P Číhal
- Department of Physical Chemistry, University of Chemistry and Technology, Prague Technická 5 16628 Prague 6 Czech Republic
| | - M Dendisová
- Department of Physical Chemistry, University of Chemistry and Technology, Prague Technická 5 16628 Prague 6 Czech Republic
| | - A Randová
- Department of Physical Chemistry, University of Chemistry and Technology, Prague Technická 5 16628 Prague 6 Czech Republic
| | - D Bouša
- Department of Inorganic Chemistry, University of Chemistry and Technology, Prague Technická 5 16628 Prague 6 Czech Republic
| | - A Shaliutina-Kolešová
- University of South Bohemia in České Budějovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology Zátiší 728/II 389 25 Vodňany Czech Republic
| | - Z Sofer
- Department of Inorganic Chemistry, University of Chemistry and Technology, Prague Technická 5 16628 Prague 6 Czech Republic
| | - K Friess
- Department of Physical Chemistry, University of Chemistry and Technology, Prague Technická 5 16628 Prague 6 Czech Republic
| |
Collapse
|
16
|
Abdul Wahab MS, Abd Rahman S, Abu Samah R. Super selective dual nature GO bridging PSF-GO-Pebax thin film nanocomposite membrane for IPA dehydration. POLYM-PLAST TECH MAT 2020. [DOI: 10.1080/25740881.2020.1836211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Mohamad Syafiq Abdul Wahab
- Department of Chemical Engineering, College of Engineering, Universiti Malaysia Pahang, Lebuhraya Tun Razak, Gambang, Kuantan, Pahang, Malaysia
| | - Sunarti Abd Rahman
- Department of Chemical Engineering, College of Engineering, Universiti Malaysia Pahang, Lebuhraya Tun Razak, Gambang, Kuantan, Pahang, Malaysia
| | - Rozaimi Abu Samah
- Department of Chemical Engineering, College of Engineering, Universiti Malaysia Pahang, Lebuhraya Tun Razak, Gambang, Kuantan, Pahang, Malaysia
| |
Collapse
|
17
|
Qadir D, Nasir R, Mukhtar HB, Keong LK. Synthesis, characterization, and performance analysis of carbon molecular sieve-embedded polyethersulfone mixed-matrix membranes for the removal of dissolved ions. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2020; 92:1306-1324. [PMID: 32170974 DOI: 10.1002/wer.1326] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2019] [Revised: 02/27/2020] [Accepted: 03/05/2020] [Indexed: 06/10/2023]
Abstract
The asymmetric polyethersulfone (PES-15 wt.%) mixed-matrix membranes were prepared by incorporation of carbon molecular sieve (CMS) with varying concentrations (1, 3, and 5 wt.%). Physicochemical characterization of synthesized membranes was carried out using field emission scanning electron microscope, atomic force microscopy, contact angle, thermogravimetric analysis, zeta potential analyzer, porosity, and mean pore sizes. Performance analysis of synthesized mixed-matrix membranes was carried out by varying the operating parameters such as pressure (2-10 bar), feed concentration (100-1,000 mg/L), and cations type (Na+ , Ca2+ , Mg2+ , and Sn2+ ). Effect of operating parameters and CMS concentration was investigated on pure water flux (PWF), permeate flux, and rejection of membranes. It was found that mixed-matrix membrane containing 15 wt.% PES with 1 wt.% CMS displayed the superior physicochemical characteristics in terms of hydrophilicity (37.9°), surface charge (-13.8 mV), mean pore diameter (6.04 nm), and thermal properties (Tg = 218.5°C), and overall performance. E5C1 membrane showed 1.5 times higher PWF (75.5 L m-2 hr-1 ) and incremented in rejection for all salts than the nascent membrane. PRACTITIONER POINTS: Carbon molecular sieve-embedded mixed-matrix membranes were synthesized by phase inversion method. The resultant membranes experienced improved hydrophilicity, roughness, surface charge, porosity, and mean pore diameter with 1 wt.% CMS loading. The pure water flux was improved from 55.77 to 75.05 L m-2 hr-1 when 1 wt.% CMS was added in pure PES. The observed rejection of a mixed-matrix membrane with 1 wt.% CMS was the maximum for all salts.
Collapse
Affiliation(s)
- Danial Qadir
- School of Chemical Engineering, The University of Faisalabad, Faisalabad, Pakistan
- Department of Chemical Engineering, Universiti Teknologi PETRONAS, Seri Iskandar, Perak, Malaysia
| | - Rizwan Nasir
- Department of Chemical Engineering, University of Jeddah, Jeddah, Saudi Arabia
| | - Hilmi B Mukhtar
- Department of Chemical Engineering, Universiti Teknologi PETRONAS, Seri Iskandar, Perak, Malaysia
| | - Lau K Keong
- Department of Chemical Engineering, Universiti Teknologi PETRONAS, Seri Iskandar, Perak, Malaysia
| |
Collapse
|
18
|
Rabiei S, Mousavi SM, Paterson AH. Development of hierarchical surface roughness on porous poly (vinylidene fluoride) membrane for membrane distillation process. POLYM ENG SCI 2020. [DOI: 10.1002/pen.25412] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sima Rabiei
- Chemical Engineering Department, Faculty of EngineeringFerdowsi University of Mashhad Mashhad Iran
| | - Seyed Mahmoud Mousavi
- Chemical Engineering Department, Faculty of EngineeringFerdowsi University of Mashhad Mashhad Iran
| | - Anthony H.J. Paterson
- School of Food and Advanced TechnologyMassey University Palmerston North New Zealand
| |
Collapse
|
19
|
Fabrication of Nanostructured Polyamic Acid Membranes for Antimicrobially Enhanced Water Purification. ADVANCES IN POLYMER TECHNOLOGY 2020. [DOI: 10.1155/2020/7362789] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Water scarcity and quality challenges facing the world can be alleviated by Point-of-Use filtration devices (POU). The use of filtration membranes in POU devices has been limited largely because of membrane fouling, which occurs when suspended solids, microbes, and organic materials are deposited on the surface of filtration membranes significantly decreasing the membrane lifespan, thereby increasing operation costs. There is need therefore to develop filtration membranes that are devoid of these challenges. In this work, nanotechnology was used to fabricate nanostructured polyamic acid (nPAA) membranes, which can be used for microbial decontamination of water. The PAA was used as support and reducing agent to introduce silver nanoparticles (AgNPs) and gold nanoparticles (AuNPs) with antimicrobial properties. The nPAA membranes were fabricated via thermal and wet phase inversion technique and then tested against Escherichia coli and Staphylococcus aureus following standard tests. The resulting nanoparticles exhibited excellent dispersibility and stability as indicated by the color change of the solution and increments of optical density at 415 nm for AgNPs and 520 nm for AuNPs. The wet phase inversion process used produced highly porous, strong, and flexible nPAA membranes, which showed well-dispersed spherical AuNPs and AgNPs whose rough average size was found to be 35 nm and 25 nm, respectively. The AgNPs demonstrated inhibition for both gram positive E. coli and gram negative S. aureus, with a better inhibitory activity against S. aureus. A synergistic enhancement of AgNPs antimicrobial activity upon AuNPs addition was demonstrated. The nPAA membranes can thus be used to remove microbials from water and can hence be used in water purification.
Collapse
|
20
|
Smith NL, Coukouma AE, Jakubek RS, Asher SA. Mechanisms by Which Organic Solvent Exchange Transforms Responsive Pure Protein Hydrogels into Responsive Organogels. Biomacromolecules 2019; 21:839-853. [DOI: 10.1021/acs.biomac.9b01522] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Natasha Lynn Smith
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Andrew Eagle Coukouma
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Ryan S. Jakubek
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Sanford A. Asher
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| |
Collapse
|
21
|
Kahrs C, Gühlstorf T, Schwellenbach J. Influences of different preparation variables on polymeric membrane formation via nonsolvent induced phase separation. J Appl Polym Sci 2019. [DOI: 10.1002/app.48852] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Catharina Kahrs
- Sartorius Stedim Biotech GmbH 37079 Goettingen Germany
- Institute for Technical ChemistryLeibniz University Hannover 30167 Hannover Germany
| | - Thorben Gühlstorf
- Sartorius Stedim Biotech GmbH 37079 Goettingen Germany
- Faculty of Computer Science and EngineeringFrankfurt University of Applied Sciences 60318 Frankfurt/Main Germany
| | | |
Collapse
|
22
|
Wong KK, Jawad ZA. A review and future prospect of polymer blend mixed matrix membrane for CO2 separation. JOURNAL OF POLYMER RESEARCH 2019. [DOI: 10.1007/s10965-019-1978-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
23
|
Nasir A, Masood F, Yasin T, Hameed A. Progress in polymeric nanocomposite membranes for wastewater treatment: Preparation, properties and applications. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2019.06.052] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
24
|
Barambu NU, Bilad MR, Wibisono Y, Jaafar J, Mahlia TMI, Khan AL. Membrane Surface Patterning as a Fouling Mitigation Strategy in Liquid Filtration: A Review. Polymers (Basel) 2019; 11:polym11101687. [PMID: 31618963 PMCID: PMC6835855 DOI: 10.3390/polym11101687] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 09/22/2019] [Accepted: 09/26/2019] [Indexed: 11/16/2022] Open
Abstract
Membrane fouling is seen as the main culprit that hinders the widespread of membrane application in liquid-based filtration. Therefore, fouling management is key for the successful implementation of membrane processes, and it is done across all magnitudes. For optimum operation, membrane developments and surface modifications have largely been reported, including membrane surface patterning. Membrane surface patterning involves structural modification of the membrane surface to induce secondary flow due to eddies, which mitigate foulant agglomeration and increase the effective surface area for improved permeance and antifouling properties. This paper reviews surface patterning approaches used for fouling mitigation in water and wastewater treatments. The focus is given on the pattern formation methods and their effect on overall process performances.
Collapse
Affiliation(s)
- Nafiu Umar Barambu
- Chemical Engineering Department, Universiti Teknologi PETRONAS, Perak 32610, Malaysia.
| | - Muhammad Roil Bilad
- Chemical Engineering Department, Universiti Teknologi PETRONAS, Perak 32610, Malaysia.
| | - Yusuf Wibisono
- Bioprocess Engineering Program, Faculty of Agricultural Technology, Universitas Brawijaya, Malang 65141, Indonesia.
| | - Juhana Jaafar
- Advanced Membrane Technology Research Centre (AMTEC), Faculty of Chemical and Natural Resources Engineering, Universiti Teknologi Malaysia, Johor 81310, Malaysia.
| | - Teuku Meurah Indra Mahlia
- School of Information, Systems and Modelling, Faculty of Engineering and Information Technology, University of Technology Sydney, Sydney, NSW 2007, Australia.
| | - Asim Laeeq Khan
- Department of Chemical Engineering, COMSATS University Islamabad (CUI), Lahore 54000, Pakistan.
| |
Collapse
|
25
|
Dong X, Shannon HD, Parker C, De Jesus S, Escobar IC. Comparison of two low‐hazard organic solvents as individual and cosolvents for the fabrication of polysulfone membranes. AIChE J 2019. [DOI: 10.1002/aic.16790] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Xiaobo Dong
- Department of Chemical and Materials Engineering University of Kentucky Lexington Kentucky
| | - Halle D. Shannon
- Department of Chemical and Materials Engineering University of Kentucky Lexington Kentucky
| | - Caleb Parker
- Department of Chemical and Materials Engineering University of Kentucky Lexington Kentucky
| | - Samantha De Jesus
- Department of Chemical and Materials Engineering University of Kentucky Lexington Kentucky
| | - Isabel C. Escobar
- Department of Chemical and Materials Engineering University of Kentucky Lexington Kentucky
| |
Collapse
|
26
|
Kahrs C, Metze M, Fricke C, Schwellenbach J. Thermodynamic analysis of polymer solutions for the production of polymeric membranes. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111351] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
27
|
Study on ionic liquid/cellulose/coagulator phase diagram and its application in green spinning process. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111127] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
28
|
Bou Haidar N, Marais S, Dé E, Schaumann A, Barreau M, Feuilloley MGJ, Duncan AC. Chronic wound healing: A specific antibiofilm protein-asymmetric release system. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 106:110130. [PMID: 31753364 DOI: 10.1016/j.msec.2019.110130] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 08/02/2019] [Accepted: 08/23/2019] [Indexed: 02/06/2023]
Abstract
Chronic infection is a major cause of delayed wound-healing. It is recognized to be associated with infectious bacterial communities called biofilms. Currently used conventional antibiotics alone often reveal themselves ineffective, since they do not specifically target the wound biofilm. Here, we report a new conceptual tool aimed at overcoming this drawback: an antibiofilm drug delivery system targeting the bacterial biofilm as a whole, by inhibiting its formation and/or disrupting it once it is formed. The system consists of a micro/nanostructured poly(butylene-succinate-co-adipate) (PBSA)-based asymmetric membrane (AM) with controlled porosity. By the incorporation of hydrophilic porogen agents, polyvinylpyrrolidone (PVP) and polyethylene glycol (PEG), we were able to obtain AMs with high levels of porosity, exhibiting interconnections between pores. The PBSA-PEG membrane presented a dense upper layer with pores small enough to block bacteria penetration. Upon using such porogen agents, under dry and wet conditions, membrane's integrity and mechanical properties were maintained. Using bovine serum albumin (BSA) as a model protein, we demonstrated that protein loading and release from PBSA membranes were affected by the membrane structure (porosity) and the presence of residual porogen. Furthermore, the release curve profile consisted of a fast initial slope followed by a second slow phase approaching a plateau within 24 h. This can be highly beneficial for the promotion of wound healing. Cross-sectional confocal laser scanning microscopy (CLSM) images revealed a heterogeneous distribution of fluorescein isothiocyanate (FITC) labeled BSA throughout the entire membrane. PBSA membranes were loaded with dispersin B (DB), a specific antibiofilm matrix enzyme. Studies using a Staphylococcus epidermidis model, indicate significant efficiency in both inhibiting or dispersing preformed biofilm (up to 80 % eradication). The asymmetric PBSA membrane prepared with the PVP porogen (PBSA-PVP) displayed highest antibiofilm activity. Moreover, in vitro cytotoxicity assays using HaCaT and reconstructed human epidermis (RHE) models revealed that unloaded and DB-loaded PBSA-PVP membranes had excellent biocompatibility suitable for wound dressing applications.
Collapse
Affiliation(s)
- Naila Bou Haidar
- Normandie Univ, UNIRouen Normandie, INSA Rouen, CNRS, PBS, 76000 Rouen, France
| | - Stéphane Marais
- Normandie Univ, UNIRouen Normandie, INSA Rouen, CNRS, PBS, 76000 Rouen, France
| | - Emmanuelle Dé
- Normandie Univ, UNIRouen Normandie, INSA Rouen, CNRS, PBS, 76000 Rouen, France
| | - Annick Schaumann
- Normandie Univ, UNIRouen Normandie, INSA Rouen, CNRS, PBS, 76000 Rouen, France
| | - Magalie Barreau
- Normandie Univ, UNIRouen Normandie, LMSM EA4312, 27000 Evreux, France
| | | | - Anthony C Duncan
- Normandie Univ, UNIRouen Normandie, INSA Rouen, CNRS, PBS, 76000 Rouen, France.
| |
Collapse
|
29
|
Abay Akar N, Gürel Peközer G, Torun Köse G. Fibrous bone tissue engineering scaffolds prepared by wet spinning of PLGA. ACTA ACUST UNITED AC 2019; 43:235-245. [PMID: 31496880 PMCID: PMC6710002 DOI: 10.3906/biy-1904-63] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Having a self-healing capacity, bone is very well known to regenerate itself without leaving a scar. However, critical size defects due to trauma, tumor, disease, or infection involve bone graft surgeries in which complication rate is relatively at high levels. Bone tissue engineering appears as an alternative for grafting. Fibrous scaffolds are useful in tissue engineering applications since they have a high surface-to-volume ratio, and adjustable, highly interconnected porosity to enhance cell adhesion, survival, migration, and proliferation. They can be produced in a wide variety of fiber sizes and organizations. Wet spinning is a convenient way to produce fibrous scaffolds with consistent fiber size and good mechanical properties. In this study, a fibrous bone tissue engineering scaffold was produced using poly(lactic-co-glycolic acid) (PLGA). Different concentrations (20%, 25%, and 30%) of PLGA (PLA:PGA 75:25) (Mw = 66,000-107,000) were wet spun using coagulation baths composed of different ratios (75:25, 60:40, 50:50) of isopropanol and distilled water. Scanning electron microscopy (SEM) and in vitro degradation studies were performed to characterize the fibrous PLGA scaffolds. Mesenchymal stem cells were isolated from rat bone marrow, characterized by flow cytometry and seeded onto scaffolds to determine the most appropriate fibrous structure for cell proliferation. According to the results of SEM, degradation studies and cell proliferation assay, 20% PLGA wet spun in 60:40 coagulation bath was selected as the most successful condition for the preparation of wet-spun scaffolds. Wet spinning of different concentrations of PLGA (20%, 25%, 30%) dissolved in dichloromethane using different isopropanol:distilled water ratios of coagulation baths (75:25, 60:40, 50:50) were shown in this study.
Collapse
Affiliation(s)
- Nergis Abay Akar
- Genetics and Bioengineering Department, Faculty of Engineering, Yeditepe University, İstanbul Turkey
| | - Görke Gürel Peközer
- Genetics and Bioengineering Department, Faculty of Engineering, Yeditepe University, İstanbul Turkey.,Molecular Biology-Genetics and Biotechnology Department, İstanbul Technical University, İstanbul Turkey
| | - Gamze Torun Köse
- Genetics and Bioengineering Department, Faculty of Engineering, Yeditepe University, İstanbul Turkey
| |
Collapse
|
30
|
Nthunya LN, Gutierrez L, Khumalo N, Derese S, Mamba BB, Verliefde AR, Mhlanga SD. Superhydrophobic PVDF nanofibre membranes coated with an organic fouling resistant hydrophilic active layer for direct-contact membrane distillation. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.05.031] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
31
|
Li Y, Liao C, Tjong SC. Electrospun Polyvinylidene Fluoride-Based Fibrous Scaffolds with Piezoelectric Characteristics for Bone and Neural Tissue Engineering. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E952. [PMID: 31261995 PMCID: PMC6669491 DOI: 10.3390/nano9070952] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 06/14/2019] [Accepted: 06/15/2019] [Indexed: 02/07/2023]
Abstract
Polyvinylidene fluoride (PVDF) and polyvinylidene fluoride-trifluoroethylene (P(VDF-TrFE) with excellent piezoelectricity and good biocompatibility are attractive materials for making functional scaffolds for bone and neural tissue engineering applications. Electrospun PVDF and P(VDF-TrFE) scaffolds can produce electrical charges during mechanical deformation, which can provide necessary stimulation for repairing bone defects and damaged nerve cells. As such, these fibrous mats promote the adhesion, proliferation and differentiation of bone and neural cells on their surfaces. Furthermore, aligned PVDF and P(VDF-TrFE) fibrous mats can enhance neurite growth along the fiber orientation direction. These beneficial effects derive from the formation of electroactive, polar β-phase having piezoelectric properties. Polar β-phase can be induced in the PVDF fibers as a result of the polymer jet stretching and electrical poling during electrospinning. Moreover, the incorporation of TrFE monomer into PVDF can stabilize the β-phase without mechanical stretching or electrical poling. The main drawbacks of electrospinning process for making piezoelectric PVDF-based scaffolds are their small pore sizes and the use of highly toxic organic solvents. The small pore sizes prevent the infiltration of bone and neuronal cells into the scaffolds, leading to the formation of a single cell layer on the scaffold surfaces. Accordingly, modified electrospinning methods such as melt-electrospinning and near-field electrospinning have been explored by the researchers to tackle this issue. This article reviews recent development strategies, achievements and major challenges of electrospun PVDF and P(VDF-TrFE) scaffolds for tissue engineering applications.
Collapse
Affiliation(s)
- Yuchao Li
- Department of Materials Science and Engineering, Liaocheng University, Liaocheng 252000, China.
| | - Chengzhu Liao
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Sie Chin Tjong
- Department of Physics, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
| |
Collapse
|
32
|
Synthesis and Characterization of a High Flux Nanocellulose-Cellulose Acetate Nanocomposite Membrane. MEMBRANES 2019; 9:membranes9060070. [PMID: 31174312 PMCID: PMC6630560 DOI: 10.3390/membranes9060070] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 06/01/2019] [Accepted: 06/04/2019] [Indexed: 11/16/2022]
Abstract
Despite the advantages of membrane processes, their high energy requirement remains a major challenge. Fabrication of nanocomposite membranes by incorporating various nanomaterials in the polymer matrix has shown promise for enhancing membrane flux. In this study, we embed functionalized cellulose nanofibers (CNFs) with high aspect ratios in the polymer matrix to create hydrophilic nanochannels that reduce membrane resistance and facilitate the facile transport of water molecules through the membrane. The results showed that the incorporation of 0.1 wt % CNF into the polymer matrix did not change the membrane flux (~15 L · m - 2 · h - 1 ) and Bovine Serum Albumin (BSA) Fraction V rejection, while increasing the CNF content to 0.3 wt % significantly enhanced the flux by seven times to ~100 L · m - 2 · h - 1 , but the rejection was decreased to 60-70%. Such a change in membrane performance was due to the formation of hydrophilic nanochannels by the incorporation of CNF (corroborated by the SEM images), decreasing the membrane resistance, and thus enhancing the flux. When the concentration of the CNF in the membrane matrix was further increased to 0.6 wt %, no further increase in the membrane flux was observed, however, the BSA rejection was found to increase to 85%. Such an increase in the rejection was related to the electrostatic repulsion between the negatively-charged CNF-loaded nanochannels and the BSA, as demonstrated by zeta potential measurements. SEM images showed the bridging effect of the CNF in the nanochannels with high CNF contents.
Collapse
|
33
|
Kausar A. Poly(methyl methacrylate-co-methacrylic amide)-polyethylene glycol/polycarbonate and graphene nanoribbon-based nanocomposite membrane for gas separation. INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION 2018. [DOI: 10.1080/1023666x.2018.1475896] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Ayesha Kausar
- School of Natural Sciences, National University of Sciences and Technology (NUST), H-12, Islamabad, Pakistan
| |
Collapse
|
34
|
Characterization and Processing Behavior of Heated Aluminum-Polycarbonate Composite Build Plates for the FDM Additive Manufacturing Process. JOURNAL OF MANUFACTURING AND MATERIALS PROCESSING 2018. [DOI: 10.3390/jmmp2010012] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
35
|
Idris A, Man Z, Maulud AS, Uddin F. Modified Bruggeman models for prediction of CO2
permeance in polycarbonate/silica nanocomposite membranes. CAN J CHEM ENG 2017. [DOI: 10.1002/cjce.22933] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Alamin Idris
- Chemical Engineering Department; Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar; Perak Malaysia
| | - Zakaria Man
- Chemical Engineering Department; Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar; Perak Malaysia
| | - Abdulhalim Shah Maulud
- Chemical Engineering Department; Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar; Perak Malaysia
| | - Fahim Uddin
- Chemical Engineering Department; Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar; Perak Malaysia
| |
Collapse
|