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Zakaria M, Bhuiyan MAR, Hossain MS, Khan NMMU, Salam MA, Nakane K. Advances of polyolefins from fiber to nanofiber: fabrication and recent applications. DISCOVER NANO 2024; 19:24. [PMID: 38321325 PMCID: PMC10847085 DOI: 10.1186/s11671-023-03945-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 12/14/2023] [Indexed: 02/08/2024]
Abstract
Polyolefins are a widely accepted commodity polymer made from olefinic monomer consisting of carbon and hydrogen. This thermoplastic polymeric material is formed through reactive double bonds of olefins by the addition polymerization technique and it possesses a diverse range of unique features for a large variety of applications. Among the various types, polyethylene and polypropylene are the prominent classes of polyolefins that can be crafted and manipulated into diversified products for numerous applications. Research on polyolefins has boomed tremendously in recent times owing to the abundance of raw materials, low cost, lightweight, high chemical resistance, diverse functionalities, and outstanding physical characteristics. Polyolefins have also evidenced their potentiality as a fiber in micro to nanoscale and emerged as a fascinating material for widespread high-performance use. This review aims to provide an elucidation of the breakthroughs in polyolefins, namely as fibers, filaments, and yarns, and their applications in many domains such as medicine, body armor, and load-bearing industries. Moreover, the development of electrospun polyolefin nanofibers employing cutting-edge techniques and their prospective utilization in filtration, biomedical engineering, protective textiles, and lithium-ion batteries has been illustrated meticulously. Besides, this review delineates the challenges associated with the formation of polyolefin nanofiber using different techniques and critically analyzes overcoming the difficulties in forming functional nanofibers for the innovative field of applications.
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Affiliation(s)
- Mohammad Zakaria
- Department of Textile Engineering, Dhaka University of Engineering and Technology, Gazipur, 1707, Bangladesh.
| | - M A Rahman Bhuiyan
- Department of Textile Engineering, Dhaka University of Engineering and Technology, Gazipur, 1707, Bangladesh
| | - Md Shakawat Hossain
- Frontier Fiber Technology and Science, University of Fukui, Fukui, 910-8507, Japan
- Department of Textile Engineering, Khulna University of Engineering and Technology, Khulna, Bangladesh
| | - N M-Mofiz Uddin Khan
- Department of Chemistry, Dhaka University of Engineering and Technology, Gazipur, 1707, Bangladesh
| | - Md Abdus Salam
- Department of Textile Engineering, Dhaka University of Engineering and Technology, Gazipur, 1707, Bangladesh
- Department of Research and Development, Epyllion Fabrics Ltd., Epyllion Group, Gazipur, 1703, Bangladesh
| | - Koji Nakane
- Frontier Fiber Technology and Science, University of Fukui, Fukui, 910-8507, Japan
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Hossain MT, Shahid MA, Mahmud N, Habib A, Rana MM, Khan SA, Hossain MD. Research and application of polypropylene: a review. DISCOVER NANO 2024; 19:2. [PMID: 38168725 PMCID: PMC10761633 DOI: 10.1186/s11671-023-03952-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Accepted: 12/26/2023] [Indexed: 01/05/2024]
Abstract
Polypropylene (PP) is a versatile polymer with numerous applications that has undergone substantial changes in recent years, focusing on the demand for next-generation polymers. This article provides a comprehensive review of recent research in PP and its advanced functional applications. The chronological development and fundamentals of PP are mentioned. Notably, the incorporation of nanomaterial like graphene, MXene, nano-clay, borophane, silver nanoparticles, etc., with PP for advanced applications has been tabulated with their key features and challenges. The article also conducts a detailed analysis of advancements and research gaps within three key forms of PP: fiber, membrane, and matrix. The versatile applications of PP across sectors like biomedical, automotive, aerospace, and air/water filtration are highlighted. However, challenges such as limited UV resistance, bonding issues, and flammability are noted. The study emphasizes the promising potential of PP while addressing unresolved concerns, with the goal of guiding future research and promoting innovation in polymer applications.
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Affiliation(s)
- Md Tanvir Hossain
- Department of Textile Engineering, Bangladesh University of Business and Technology (BUBT), Dhaka, 1216, Bangladesh
- Department of Textile Engineering, Dhaka University of Engineering and Technology, Gazipur, 1707, Bangladesh
| | - Md Abdus Shahid
- Department of Textile Engineering, Dhaka University of Engineering and Technology, Gazipur, 1707, Bangladesh.
| | - Nadim Mahmud
- Department of Textile Engineering, Dhaka University of Engineering and Technology, Gazipur, 1707, Bangladesh
| | - Ahasan Habib
- Department of Textile Engineering, Dhaka University of Engineering and Technology, Gazipur, 1707, Bangladesh
| | - Md Masud Rana
- Department of Textile Engineering, Dhaka University of Engineering and Technology, Gazipur, 1707, Bangladesh
| | - Shadman Ahmed Khan
- Department of Textile Engineering, Bangladesh University of Business and Technology (BUBT), Dhaka, 1216, Bangladesh
| | - Md Delwar Hossain
- Department of Textile Engineering, Dhaka University of Engineering and Technology, Gazipur, 1707, Bangladesh
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Elsaid K, Olabi AG, Abdel-Wahab A, Elkamel A, Alami AH, Inayat A, Chae KJ, Abdelkareem MA. Membrane processes for environmental remediation of nanomaterials: Potentials and challenges. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 879:162569. [PMID: 36871724 DOI: 10.1016/j.scitotenv.2023.162569] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 02/26/2023] [Accepted: 02/26/2023] [Indexed: 05/17/2023]
Abstract
Nanomaterials have gained huge attention with their wide range of applications. This is mainly driven by their unique properties. Nanomaterials include nanoparticles, nanotubes, nanofibers, and many other nanoscale structures have been widely assessed for improving the performance in different applications. However, with the wide implementation and utilization of nanomaterials, another challenge is being present when these materials end up in the environment, i.e. air, water, and soil. Environmental remediation of nanomaterials has recently gained attention and is concerned with removing nanomaterials from the environment. Membrane filtration processes have been widely considered a very efficient tool for the environmental remediation of different pollutants. Membranes with their different operating principles from size exclusions as in microfiltration, to ionic exclusion as in reverse osmosis, provide an effective tool for the removal of different types of nanomaterials. This work comprehends, summarizes, and critically discusses the different approaches for the environmental remediation of engineered nanomaterials using membrane filtration processes. Microfiltration (MF), ultrafiltration (UF), and nanofiltration (NF) have been shown to effectively remove nanomaterials from the air and aqueous environments. In MF, the adsorption of nanomaterials to membrane material was found to be the main removal mechanism. While in UF and NF, the main mechanism was size exclusion. Membrane fouling, hence requiring proper cleaning or replacement was found to be the major challenge for UF and NF processes. While limited adsorption capacity of nanomaterial along with desorption was found to be the main challenges for MF.
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Affiliation(s)
- Khaled Elsaid
- Chemical Engineering Program, Texas A&M University at Qatar, P.O. Box 23874, Doha, Qatar
| | - A G Olabi
- Sustainable Energy & Power Systems Research Centre, RISE, University of Sharjah, Sharjah 27272, United Arab Emirates; Mechanical Engineering and Design, Aston University, School of Engineering and Applied Science, Aston Triangle, Birmingham B4 7ET, UK
| | - Ahmed Abdel-Wahab
- Chemical Engineering Program, Texas A&M University at Qatar, P.O. Box 23874, Doha, Qatar
| | - Ali Elkamel
- Chemical Engineering Department, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Abdul Hai Alami
- Sustainable Energy & Power Systems Research Centre, RISE, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Abrar Inayat
- Sustainable Energy & Power Systems Research Centre, RISE, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Kyu-Jung Chae
- Department of Environmental Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Republic of Korea; Interdisciplinary Major of Ocean Renewable Energy Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, South Korea
| | - Mohammad Ali Abdelkareem
- Sustainable Energy & Power Systems Research Centre, RISE, University of Sharjah, Sharjah 27272, United Arab Emirates; Chemical Engineering Department, Minia University, Elminia, Egypt.
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Metal-organic frameworks decorated wood aerogels for efficient particulate matter removal. J Colloid Interface Sci 2022; 629:182-188. [DOI: 10.1016/j.jcis.2022.08.144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 08/22/2022] [Accepted: 08/24/2022] [Indexed: 11/19/2022]
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Baldridge KC, Edmonds K, Dziubla T, Hilt JZ, Dutch RE, Bhattacharyya D. Demonstration of Hollow Fiber Membrane-Based Enclosed Space Air Remediation for Capture of an Aerosolized Synthetic SARS-CoV-2 Mimic and Pseudovirus Particles. ACS ES&T ENGINEERING 2022; 2:251-262. [PMID: 37406036 PMCID: PMC8768008 DOI: 10.1021/acsestengg.1c00369] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Reduction of airborne viral particles in enclosed spaces is critical in controlling pandemics. Three different hollow fiber membrane (HFM) modules were investigated for viral aerosol separation in enclosed spaces. Pore structures were characterized by scanning electron microscopy, and air transport properties were measured. Particle removal efficiency was characterized using aerosols generated by a collision atomizer from a defined mixture of synthetic nanoparticles including SARS-CoV-2 mimics (protein-coated 100 nm polystyrene). HFM1 (polyvinylidene fluoride, ~50-1300 nm pores) demonstrated 96.5-100% efficiency for aerosols in the size range of 0.3-3 μm at a flow rate of 18.6 ± 0.3 SLPM (~1650 LMH), whereas HFM2 (polypropylene, ~40 nm pores) and HFM3 (hydrophilized polyether sulfone, ~140-750 nm pores) demonstrated 99.65-100% and 98.8-100% efficiency at flow rates of 19.7 ± 0.3 SLPM (~820 LMH) and 19.4 ± 0.2 SLPM (~4455 LMH), respectively. Additionally, lasting filtration with minimal fouling was demonstrated using ambient aerosols over 2 days. Finally, each module was evaluated with pseudovirus (vesicular stomatitis virus) aerosol, demonstrating 99.3% (HFM1), >99.8% (HFM2), and >99.8% (HFM3) reduction in active pseudovirus titer as a direct measure of viral particle removal. These results quantified the aerosol separation efficiency of HFMs and highlight the need for further development of this technology to aid the fight against airborne viruses and particulate matter concerning human health.
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Affiliation(s)
- Kevin C Baldridge
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky 40506, United States
| | - Kearstin Edmonds
- Department of Molecular and Cellular Biochemistry, University of Kentucky, Lexington, Kentucky 40508, United States
| | - Thomas Dziubla
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky 40506, United States
| | - J Zach Hilt
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky 40506, United States
| | - Rebecca E Dutch
- Department of Molecular and Cellular Biochemistry, University of Kentucky, Lexington, Kentucky 40508, United States
| | - Dibakar Bhattacharyya
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky 40506, United States
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Bulejko P, Krištof O, Dohnal M. An Assessment on Average Pressure Drop and Dust-Holding Capacity of Hollow-Fiber Membranes in Air Filtration. MEMBRANES 2021; 11:467. [PMID: 34202790 PMCID: PMC8306576 DOI: 10.3390/membranes11070467] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 06/18/2021] [Accepted: 06/22/2021] [Indexed: 11/16/2022]
Abstract
In this work, we tried to analyze dust loading behavior of polypropylene hollow fiber membranes using average pressure drop models. Hollow fiber membranes varying in fiber diameter were loaded with a standardized test dust to simulate particle-polluted air. We measured pressure drop development of the membranes at different flowrates and dust concentrations, and, after each experiment, the dust deposited on the membrane fibers was weighed to obtain dust holding capacity (DHC). The obtained experimental data was analyzed using various average pressure drop models and compared with average pressure drop obtained from pressure drop/dust load dependence using a curve fit. Exponential and polynomial fitting was used and compared. Pressure drop in relation to the dust load followed different trends depending on the experimental conditions and inner fiber diameter. At higher flowrate, the dependence was polynomial no matter what the fiber diameter. However, with higher fiber diameter at lower permeate velocities, the dependence was close to exponential curve and followed similar trends as observed in planar filter media. Dust-holding capacity of the membranes depended on the experimental conditions and was up to 21.4 g. However, higher dust holding capacity was impossible to reach no matter the experiment duration due to self-cleaning ability of the tested membranes.
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Affiliation(s)
- Pavel Bulejko
- Heat Transfer and Fluid Flow Laboratory, Faculty of Mechanical Engineering, Brno University of Technology, 61669 Brno, Czech Republic
| | - Ondřej Krištof
- ZENA Membranes s.r.o., 62100 Brno, Czech Republic; (O.K.); (M.D.)
| | - Miroslav Dohnal
- ZENA Membranes s.r.o., 62100 Brno, Czech Republic; (O.K.); (M.D.)
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Wang LY, Yu LE, Chung TS. Effects of relative humidity, particle hygroscopicity, and filter hydrophilicity on filtration performance of hollow fiber air filters. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2019.117561] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Fine/ultrafine particle air filtration and aerosol loading of hollow-fiber membranes: A comparison of mathematical models for the most penetrating particle size and dimensionless permeability with experimental data. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.117393] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Zakaria M, Nakane K. Fabrication of Polypropylene Nanofibers from Polypropylene/Polyvinyl Butyral Blend Films Using Laser‐Assisted Melt‐Electrospinning. POLYM ENG SCI 2019. [DOI: 10.1002/pen.25291] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Mohammad Zakaria
- Frontier Fiber Technology and ScienceUniversity of Fukui Fukui 910‐8507 Japan
- Department of Textile EngineeringDhaka University of Engineering and Technology Gazipur 1700 Bangladesh
| | - Koji Nakane
- Frontier Fiber Technology and ScienceUniversity of Fukui Fukui 910‐8507 Japan
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Liu X, Shen H, Nie X. Study on the Filtration Performance of the Baghouse Filters for Ultra-Low Emission as a Function of Filter Pore Size and Fiber Diameter. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:E247. [PMID: 30654532 PMCID: PMC6351911 DOI: 10.3390/ijerph16020247] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 12/16/2018] [Accepted: 12/31/2018] [Indexed: 12/03/2022]
Abstract
The main objective of this study was to determine the effect of filter pore size and fiber diameter on the performance of the baghouse filters for ultra-low emission. In this study, three kinds of conventional polyester filter (depth filtration media) and two kinds of polytetrafluoroethylene membrane-coated polyester filter (surface filtration media), having various filter pore sizes and fiber diameters, were tested to determine the performance of static and dynamic filtration. In order to determine the static filtration performance, the filtration resistance and the filtration efficiency of the clean filter media were measured by the arrestance method. The dynamic filtration performance experiments were conducted to determine the dynamic resistances, dust depositions, and dynamic filtration efficiencies of the dust-containing filter media under the condition of dust airflow filtration through a pulse-cleaning cycle. In the dynamic filtration performance experiments, the size of 50% test dust was less than 2.5 μm, and the mass mean aerodynamic diameter of the dust was 1.5 μm. The filtration velocity was 2 m∙min-1, and the dust concentration was 18.4 g∙m-3. The static filtration performance experiments showed that the filter pore size greatly affected the filtration resistance and the filtration efficiency of the fabric structure of the surface filtration media. In the depth filtration media, the filtration efficiency and the filtration resistance of the fabric structure were improved when the filter pore size and the fiber diameter were smaller in magnitude. For all the five filter media, smaller the pore size of the filter media, greater was the filtration precision (for fine particles, such as PM2.5) of the fabric structure. In the dynamic filtration performance experiments, the filter pore size and the fiber diameter of the depth filtration media affected the dynamic filtration resistance and the dynamic filtration efficiency of the depth filtration media by affecting the deposition rate of dust in the depth filtration media; however, the filter pore size of the surface filtration media affected the blocking rate of dust in the membrane micropores, thus influencing the dynamic filtration resistance and the dynamic filtration efficiency of the surface filtration media.
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Affiliation(s)
- Xingcheng Liu
- School of Environmental Science and Engineering, Donghua University, Shanghai 201620, China.
| | - Henggen Shen
- School of Environmental Science and Engineering, Donghua University, Shanghai 201620, China.
| | - Xueli Nie
- School of Environmental Science and Engineering, Donghua University, Shanghai 201620, China.
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Bulejko P. Numerical Comparison of Prediction Models for Aerosol Filtration Efficiency Applied on a Hollow-Fiber Membrane Pore Structure. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E447. [PMID: 29921781 PMCID: PMC6027286 DOI: 10.3390/nano8060447] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 06/11/2018] [Accepted: 06/15/2018] [Indexed: 12/24/2022]
Abstract
Hollow-fiber membranes (HFMs) have been widely applied to many liquid treatment applications such as wastewater treatment, membrane contactors/bioreactors and membrane distillation. Despite the fact that HFMs are widely used for gas separation from gas mixtures, their use for mechanical filtration of aerosols is very scarce. In this work, we compared mathematical models developed for the prediction of air filtration efficiency by applying them on the structural parameters of polypropylene HFMs. These membranes are characteristic of pore diameters of about 90 nm and have high solidity, thus providing high potential for nanoparticle removal from air. A single fiber/collector and capillary pore approach was chosen to compare between models developed for fibrous filters and capillary-pore membranes (Nuclepore filters) based on three main mechanisms occurring in aerosol filtration (inertial impaction, interception and diffusion). The collection efficiency due to individual mechanisms differs significantly. The differences are caused by the parameters for which the individual models were developed, i.e., given values of governing dimensionless numbers (Reynolds, Stokes and Peclet number) and also given values of filter porosity and filter fiber diameter. Some models can be used to predict the efficiency of HFMs based on assumptions depending on the conditions and exact membrane parameters.
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Affiliation(s)
- Pavel Bulejko
- Heat Transfer and Fluid Flow Laboratory, Faculty of Mechanical Engineering, Brno University of Technology, Technická 2, 616 69 Brno, Czech Republic.
- MemBrain s.r.o. Pod Vinicí 87, 471 27 Stráž pod Ralskem, Czech Republic.
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Weiß K, Astrouski I, Reppich M, Raudenský M. Polymeric Hollow-Fiber Bundles as Immersed Heat Exchangers. Chem Eng Technol 2018. [DOI: 10.1002/ceat.201700014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Klarissa Weiß
- Efficient Energy GmbH; Hans-Riedl-Strasse 5 85622 Feldkirchen Germany
| | - Ilya Astrouski
- Brno University of Technology; Faculty of Mechanical Engineering, Heat Transfer and Fluid Flow Laboratory; Technická 2896/2 61669 Brno Czech Republic
| | - Marcus Reppich
- Augsburg University of Applied Sciences; Faculty of Mechanical and Process Engineering; An der Hochschule 1 86161 Augsburg Germany
| | - Miroslav Raudenský
- Brno University of Technology; Faculty of Mechanical Engineering, Heat Transfer and Fluid Flow Laboratory; Technická 2896/2 61669 Brno Czech Republic
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Xu H, Jin W, Wang F, Li C, Wang J, Zhu H, Guo Y. Preparation and properties of PTFE hollow fiber membranes for the removal of ultrafine particles in PM2.5 with repetitive usage capability. RSC Adv 2018; 8:38245-38258. [PMID: 35559087 PMCID: PMC9089834 DOI: 10.1039/c8ra07789d] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Accepted: 10/26/2018] [Indexed: 12/13/2022] Open
Abstract
This study reveals the first attempt to apply PTFE hollow fiber membranes for removing ultrafine particles in PM2.5. The asymmetric polytetrafluoroethylene (PTFE) hydrophobic hollow fiber membranes were prepared through a cold pressing method including paste extrusion, stretching and heating. The reduction ratio, stretching ratio and heating temperature have influences on the morphology, structure, porosity, shrinkage ratio, tensile strength and permeability of the PTFE hollow fiber membranes. The morphological properties of the PTFE hollow fiber membrane were studied using field emission scanning electron microscopy (FESEM). The increase of stretching ratio can improve the pore size and porosity of the hollow membrane, but be negative for the mechanical properties. By changing the reduction ratio we can obtain different inner diameter PTFE hollow fiber membranes. Finally, the PTFE hollow fiber membranes were tested for their performances in the removal of ultrafine particles in PM2.5. The PTFE hollow fiber membranes had the microstructure of nodes interconnected by fibrils, designed to possess the synergistic advantages of porous filters and fibrous filters with a sieve-like outer surface and a fibrous-like porous substrate. Under dead-end filtration, the filtration efficiency is related to the wall thickness, pore size and porosity of the membranes. The air filtration achieved was higher than 99.99% for PM2.5 and 90% for PM0.3, indicating that all the prepared PTFE hollow fiber membranes exhibited satisfactory removal of ultrafine particles performances. Because of the hydrophobicity, PTFE hollow fiber membranes have self-cleaning ability and a large dust-holding capacity of >120 g m−2, slowing down membrane fouling. The fouled filter media after washing retained a high filtration efficiency without obvious deterioration. The hydrophobic PTFE hollow fiber membranes developed in this work exhibited potential applications in air filtration. This study reveals the first attempt to apply PTFE hollow fiber membranes for removing ultrafine particles in PM2.5.![]()
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Affiliation(s)
- Huan Xu
- Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology
- Zhejiang Sci-Tech University
- Hangzhou
- China
| | - Wangyong Jin
- Zhejiang Dong Da Environment Engineering CO., LTD
- Zhuji 311800
- China
| | - Feng Wang
- Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology
- Zhejiang Sci-Tech University
- Hangzhou
- China
- Zhejiang Kertice Hi-Tech Fluor-Material Co., LTD
| | - Chengcai Li
- Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology
- Zhejiang Sci-Tech University
- Hangzhou
- China
| | - Jieqi Wang
- Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology
- Zhejiang Sci-Tech University
- Hangzhou
- China
| | - Hailin Zhu
- Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology
- Zhejiang Sci-Tech University
- Hangzhou
- China
- Zhejiang Kertice Hi-Tech Fluor-Material Co., LTD
| | - Yuhai Guo
- Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology
- Zhejiang Sci-Tech University
- Hangzhou
- China
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