1
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Boroumand S, Majidi RF, Gheibi A, Majidi RF. Selenium nanoparticles incorporated in nanofibers media eliminate H1N1 activity: a novel approach for virucidal antiviral and antibacterial respiratory mask. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:2360-2376. [PMID: 38063966 DOI: 10.1007/s11356-023-31202-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Accepted: 11/20/2023] [Indexed: 01/18/2024]
Abstract
The consecutive viral infectious outbreaks impose severe complications on public health besides the economic burden which led to great interest in antiviral personal protective equipment (PPE). Nanofiber-based respiratory mask has been introduced as a significant barrier to eliminate the airborne transmission from aerosols toward reduction the viral infection spreading. Herein, selenium nanoparticles incorporated in polyamide 6 nanofibers coated on spunbond nonwoven were synthesized via electrospinning technique (PA6@SeNPs), with an average diameter of 180 ± 2 nm. The nanofiber-coated media were tested for 0.3 μm particulate filtration efficiency based on Standard NIOSH (42 CFR 84). PA6@SeNPs had a pressure drop of 45 ± 2 Pa and particulate filtration efficiency of more than 97.33 which is comparable to the N95 respiratory mask. The bacterial killing efficiency of these nanofibers was 91.25% and 16.67% against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli), respectively. Furthermore, the virucidal antiviral test for H1N1 infected Madin-Darby Canine Kidney cells (MDCK) exhibited TCID50 of 108.13, 105.88, and 105.5 for 2, 10, and 120 min of exposure times in comparison with 108.5, 107.5, and 106.5 in PA6 nanofibers as control sample. MTT assay indicated excellent biocompatibility of electrospun PA6@SeNP nanofibers on L292 cells. These results propose the PA6@SeNP nanofibers have a high potential to be used as an efficient layer in respiratory masks for protection against respiratory pathogens.
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Affiliation(s)
| | | | - Ali Gheibi
- Fanavaran Nano-Meghyas (Fnm Co. Ltd.), Tehran, Iran
| | - Reza Faridi Majidi
- Fanavaran Nano-Meghyas (Fnm Co. Ltd.), Tehran, Iran.
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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2
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Heris SZ, Ebadiyan H, Mousavi SB, Nami SH, Mohammadpourfard M. The influence of nano filter elements on pressure drop and pollutant elimination efficiency in town border stations. Sci Rep 2023; 13:18793. [PMID: 37914806 PMCID: PMC10620236 DOI: 10.1038/s41598-023-46129-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 10/27/2023] [Indexed: 11/03/2023] Open
Abstract
Natural gas stands as the most ecologically sustainable fossil fuel, constituting nearly 25% of worldwide primary energy utilization and experiencing rapid expansion. This article offers an extensive comparative analysis of nano filter elements, focusing on pressure drop and pollutant removal efficiency. The primary goal was to assess the superior performance of nano filter elements and their suitability as an alternative for Town Border Station (TBS). The research encompassed a six-month examination period, involving routine pressure assessments, structural examinations, and particle characterization of the filter elements. The results revealed that nano filters showed better performance in adsorbing aluminum than conventional filters, possibly due to their cartridge composition. Nano filters contained phosphorus, sulfur, and copper, while conventional filters lacked these elements. The disparity can be attributed to the finer mesh of the nano filter, capturing smaller pollutants. Although the nano filter had minimal silicon, the conventional filter showed some, posing concerns. Despite having 19 extra pleats, the nano filter maintained gas flow pressure while capturing more particles than the conventional filter.
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Affiliation(s)
- Saeed Zeinali Heris
- Xi'an University of Science and Technology, No. 58, Middle Section of Yanta Road, Xi'an, 710054, Shaanxi, China.
- Faculty of Chemical and Petroleum Engineering, University of Tabriz, Tabriz, Iran.
| | - Hamed Ebadiyan
- Faculty of Chemical and Petroleum Engineering, University of Tabriz, Tabriz, Iran
| | - Seyed Borhan Mousavi
- Faculty of Chemical and Petroleum Engineering, University of Tabriz, Tabriz, Iran.
- J. Mike Walker '66 Mechanical Engineering Department, Texas A&M University, College Station, TX, 77843, USA.
| | - Shamin Hosseini Nami
- School of Chemical, Biological and Materials Engineering, The University of Oklahoma, Norman, OK, 73019, USA
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3
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Tabatabaei N, Faridi-Majidi R, Boroumand S, Norouz F, Rahmani M, Rezaie F, Fayazbakhsh F, Faridi-Majidi R. Nanofibers in Respiratory Masks: An Alternative to Prevent Pathogen Transmission. IEEE Trans Nanobioscience 2023; 22:685-701. [PMID: 35724284 PMCID: PMC10620960 DOI: 10.1109/tnb.2022.3181745] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Recent global outbreak of COVID-19 has raised serious awareness about our abilities to protect ourselves from hazardous pathogens and volatile organic compounds. Evidence suggests that personal protection equipment such as respiratory masks can radically decrease rates of transmission and infections due to contagious pathogens. To increase filtration efficiency without compromising breathability, application of nanofibers in production of respiratory masks have been proposed. The emergence of nanofibers in the industry has since introduced a next generation of respiratory masks that promises improved filtration efficiency and breathability via nanometric pores and thin fiber thickness. In addition, the surface of nanofibers can be functionalized and enhanced to capture specific particles. In addition to conventional techniques such as melt-blown, respiratory masks by nanofibers have provided an opportunity to prevent pathogen transmission. As the surge in global demand for respiratory masks increases, herein, we reviewed recent advancement of nanofibers as an alternative technique to be used in respiratory mask production.
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4
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Hadinejad F, Morad H, Jahanshahi M, Zarrabi A, Pazoki-Toroudi H, Mostafavi E. A Novel Vision of Reinforcing Nanofibrous Masks with Metal Nanoparticles: Antiviral Mechanisms Investigation. ADVANCED FIBER MATERIALS 2023; 5:1-45. [PMID: 37361103 PMCID: PMC10088653 DOI: 10.1007/s42765-023-00275-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 02/13/2023] [Indexed: 06/28/2023]
Abstract
Prevention of spreading viral respiratory disease, especially in case of a pandemic such as coronavirus disease of 2019 (COVID-19), has been proved impossible without considering obligatory face mask-wearing protocols for both healthy and contaminated populations. The widespread application of face masks for long hours and almost everywhere increases the risks of bacterial growth in the warm and humid environment inside the mask. On the other hand, in the absence of antiviral agents on the surface of the mask, the virus may have a chance to stay alive and be carried to different places or even put the wearers at risk of contamination when touching or disposing the masks. In this article, the antiviral activity and mechanism of action of some of the potent metal and metal oxide nanoparticles in the role of promising virucidal agents have been reviewed, and incorporation of them in an electrospun nanofibrous structure has been considered an applicable method for the fabrication of innovative respiratory protecting materials with upgraded safety levels. Graphical Abstract
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Affiliation(s)
- Farinaz Hadinejad
- Nanotechnology Research Institute, Faculty of Chemical Engineering, Babol Noushirvani University of Technology, Babol, 4714873113 Iran
| | - Hamed Morad
- Department of Pharmaceutics and Pharmaceutical Nanotechnology, School of Pharmacy, Iran University of Medical Sciences, Tehran, 1475886973 Iran
- Ramsar Campus, Mazandaran University of Medical Sciences, Ramsar, 4691710001 Iran
| | - Mohsen Jahanshahi
- Nanotechnology Research Institute, Faculty of Chemical Engineering, Babol Noushirvani University of Technology, Babol, 4714873113 Iran
| | - Ali Zarrabi
- Department of Biomedical Engineering, Faculty of Engineering and Natural Sciences, Istinye University, Istanbul, 34396 Turkey
| | - Hamidreza Pazoki-Toroudi
- Physiology Research Center, Faculty of Medicine, Iran University of Medical Sciences, Tehran, 1449614535 Iran
- Department of Physiology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, 1449614535 Iran
| | - Ebrahim Mostafavi
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA 94305 USA
- Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305 USA
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5
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Gezmis-Yavuz E, Ergon-Can T, Cansoy CE, Koseoglu-Imer DY. Fabrication and Application of Halloysite Nanotube-Embedded Photocatalytic Nanofibers with Antibacterial Properties. ACS OMEGA 2023; 8:1453-1465. [PMID: 36643546 PMCID: PMC9835798 DOI: 10.1021/acsomega.2c06880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 12/12/2022] [Indexed: 06/17/2023]
Abstract
With decreasing indoor air quality, increased time spent at indoors, and especially with the COVID-19 pandemic, the development of new materials for bacteria and viruses has become even more important. Less material consumption due to the electrospinning process, the easy availability/affordability of the halloysite nanotube (HNT), and the antibacterial effect of both TiO2 and ZnO nanoparticles make the study even more interesting. HNTs have attracted research attention in recent years due to their low cost, high mechanical strength, natural and environmentally friendly structure, and non-toxicity to human health and ecosystem. In this study, HNT-embedded composite nanofiber filters were fabricated as filter materials using the electrospinning method. Photocatalysts (TiO2 and ZnO) were incorporated into the composite nanofibers by the electrospraying method. The results showed that the combination of both HNT/TiO2 and HNT/ZnO additives was successfully integrated into the filter structure. The effect of embedding the HNT and spraying photocatalysts enables the fabrication of composite filters with lower pressure drop, high filtration efficiency, improved mechanical properties, and high antibacterial properties against Escherichia coli, making the nanofibers suitable and promising for face masks and air filter materials.
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Affiliation(s)
- Elifnur Gezmis-Yavuz
- Department
of Environmental Engineering, Istanbul Technical
University, Maslak Campus, Istanbul 34469, Turkey
| | - Tulay Ergon-Can
- Department
of Environmental Engineering, Istanbul Technical
University, Maslak Campus, Istanbul 34469, Turkey
| | - C. Elif Cansoy
- Department
of Maritime Transportation Management Engineering, Piri Reis University, Istanbul 34940, Turkey
| | - Derya Y. Koseoglu-Imer
- Department
of Environmental Engineering, Istanbul Technical
University, Maslak Campus, Istanbul 34469, Turkey
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6
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Non-Woven Filters Made of PLA via Solution Blowing Process for Effective Aerosol Nanoparticles Filtration. Processes (Basel) 2022. [DOI: 10.3390/pr10122598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
With the development of civilization, the awareness of the impact of versatile aerosol particles on both human health and the environment is growing. New materials are needed to purify the air to control this impact The aspect of processing the produced waste is not negligible. In view of the above, this study proposes utilizing the solution blow spinning process (SBS) for manufacturing a biodegradable filtration structure that ensures high efficiency of nanoobject filtration, with a low pressure drop. Polylactic acid (PLA) was used to produce a nanofiber layer on the coconut substrate. The advantage of this method is the ability to blow fibers with diameters in the nano-scale, applying relatively simple, cost-effective, and easy to scale-up equipment. This work selected appropriate process parameters to produce good quality filters. Moreover, the process conditions influence on the morphology of the obtained structures and, thus, also the filtration properties, were examined. For tested solutions, i.e., 4% and 6%, the mean fiber diameter decreased as the concentration decreased. Therefore, the overall filtering efficiency increased as the concentration of the used solution decreased. The produced structures exhibited approximately 70% filtration efficiency for particles ranging from 0.02 to 0.2 μm with a pressure drop of less than 60 Pa. Obtained results are optimistic and are a step in producing efficient, biodegradable filters to remove nanoparticles from air.
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7
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In situ preparation of silver nanoparticle embedded composite nanofibrous membrane: a multi-layered biocidal air filter. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04561-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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A Review of Titanium Dioxide (TiO2)-Based Photocatalyst for Oilfield-Produced Water Treatment. MEMBRANES 2022; 12:membranes12030345. [PMID: 35323821 PMCID: PMC8950424 DOI: 10.3390/membranes12030345] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/14/2022] [Accepted: 03/15/2022] [Indexed: 12/14/2022]
Abstract
Oilfield produced water (OPW) has become a primary environmental concern due to the high concentration of dissolved organic pollutants that lead to bioaccumulation with high toxicity, resistance to biodegradation, carcinogenicity, and the inhibition of reproduction, endocrine, and non-endocrine systems in aquatic biota. Photodegradation using photocatalysts has been considered as a promising technology to sustainably resolve OPW pollutants due to its benefits, including not requiring additional chemicals and producing a harmless compound as the result of pollutant photodegradation. Currently, titanium dioxide (TiO2) has gained great attention as a promising photocatalyst due to its beneficial properties among the other photocatalysts, such as excellent optical and electronic properties, high chemical stability, low cost, non-toxicity, and eco-friendliness. However, the photoactivity of TiO2 is still inhibited because it has a wide band gap and a low quantum field. Hence, the modification approaches for TiO2 can improve its properties in terms of the photocatalytic ability, which would likely boost the charge carrier transfer, prevent the recombination of electrons and holes, and enhance the visible light response. In this review, we provide an overview of several routes for modifying TiO2. The as-improved photocatalytic performance of the modified TiO2 with regard to OPW treatment is reviewed. The stability of modified TiO2 was also studied. The future perspective and challenges in developing the modification of TiO2-based photocatalysts are explained.
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9
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Lou CW, Lin MC, Huang CH, Lai MF, Shiu BC, Lin JH. Preparation of Needleless Electrospinning Polyvinyl Alcohol/Water-Soluble Chitosan Nanofibrous Membranes: Antibacterial Property and Filter Efficiency. Polymers (Basel) 2022; 14:polym14051054. [PMID: 35267878 PMCID: PMC8915060 DOI: 10.3390/polym14051054] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 02/26/2022] [Accepted: 03/03/2022] [Indexed: 02/05/2023] Open
Abstract
Electrospinning is an efficient method of producing nanofibers out of polymers that shows a great potential for the filtration territory. Featuring water-soluble chitosan (WS-CS), a low-pollution process and a self-made needleless machine, PVA/WS-CS nanofibrous membranes were prepared and evaluated for nanofiber diameter, bacteriostatic property, filtration efficiency, pressure drop, and quality factor. Test results indicate that the minimal fiber diameter was 216.58 ± 58.15 nm. Regardless of the WS-CS concentration, all of the PVA/WS-CS nanofibrous membranes attained a high porosity and a high water vapor transmission rate (WVTR), with a pore size of 12.06–22.48 nm. Moreover, the membranes also exhibit bacteriostatic efficacy against Staphylococcus aureus, an optimal quality factor of 0.0825 Pa−1, and a filtration efficiency as high as 97.0%, that is 72.5% higher than that of common masks.
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Affiliation(s)
- Ching-Wen Lou
- Fujian Key Laboratory of Novel Functional Fibers and Materials, Minjiang University, Fuzhou 350108, China;
- Advanced Medical Care and Protection Technology Research Center, College of Textile and Clothing, Qingdao University, Qingdao 266071, China
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung City 413305, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung City 404333, Taiwan
| | - Meng-Chen Lin
- Laboratory of Fiber Application and Manufacturing, Department of Fiber and Composite Materials, Feng Chia University, Taichung 407102, Taiwan;
- Correspondence: (M.-C.L.); (C.-H.H.); (J.-H.L.)
| | - Chen-Hung Huang
- Department of Aerospace and Systems Engineering, Feng Chia University, Taichung City 407102, Taiwan
- Correspondence: (M.-C.L.); (C.-H.H.); (J.-H.L.)
| | - Mei-Feng Lai
- Laboratory of Fiber Application and Manufacturing, Department of Fiber and Composite Materials, Feng Chia University, Taichung 407102, Taiwan;
| | - Bing-Chiuan Shiu
- College of Material and Chemical Engineering, Minjiang University, Fuzhou 350108, China;
| | - Jia-Horng Lin
- Advanced Medical Care and Protection Technology Research Center, College of Textile and Clothing, Qingdao University, Qingdao 266071, China
- Laboratory of Fiber Application and Manufacturing, Department of Fiber and Composite Materials, Feng Chia University, Taichung 407102, Taiwan;
- College of Material and Chemical Engineering, Minjiang University, Fuzhou 350108, China;
- Advanced Medical Care and Protection Technology Research Center, Department of Fiber and Composite Materials, Feng Chia University, Taichung City 407102, Taiwan
- School of Chinese Medicine, China Medical University, Taichung City 404333, Taiwan
- Correspondence: (M.-C.L.); (C.-H.H.); (J.-H.L.)
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10
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A comprehensive review of electrospray technique for membrane development: Current status, challenges, and opportunities. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2021.120248] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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11
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TiO 2 Nanoparticle-Loaded Poly(NIPA- co-NMA) Fiber Web for the Adsorption and Photocatalytic Degradation of 4-Isopropylphenol. Gels 2022; 8:gels8020137. [PMID: 35200518 PMCID: PMC8872535 DOI: 10.3390/gels8020137] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 02/18/2022] [Accepted: 02/19/2022] [Indexed: 02/01/2023] Open
Abstract
A TiO2 nanoparticle-loaded polymer fiber web was developed as a functional material with the ability to adsorb and photo-catalytically degrade organic pollutants in aquatic media. A linear copolymer of N-isopropylacrylamide (primary component) and N-methylol acrylamide (poly(NIPA-co-NMA)) was prepared, and composite fibers were fabricated by electrospinning a methanol suspension containing the copolymer and commercially available TiO2 nanoparticles. The crosslinking of the polymer via the formation of methylene bridges between NMA units was accomplished by heating, and the fiber morphology was analyzed by electron microscopy. 4-Isopropylphenol generated by the degradation of bisphenol A—one of the endocrine-disrupting chemicals—was used as the model organic pollutant. As poly(NIPA) is a thermosensitive polymer that undergoes hydrophilic/hydrophobic transition in water, the temperature-dependence of the adsorption and photocatalytic degradation of 4-isopropylphenol was investigated. The degradation rate was analyzed using a pseudo-first-order kinetic model to obtain the apparent reaction rate constant, kapp. The enhancement of the photocatalytic degradation rate owing to the adsorption of 4-isopropylphenol onto thermosensitive poly(NIPA)-based fibers is discussed in terms of the ratio of the kapp of the composite fiber to that of unsupported TiO2 nanoparticles. Based on the results, an eco-friendly wastewater treatment process involving periodically alternated adsorption and photocatalytic degradation is proposed.
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12
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Yao Z, Xia M, Xiong Z, Wu Y, Cheng P, Cheng Q, Xu J, Wang D, Liu K. A Hierarchical Structure of Flower-Like Zinc Oxide and Poly(Vinyl Alcohol- co-Ethylene) Nanofiber Hybrid Membranes for High-Performance Air Filters. ACS OMEGA 2022; 7:3030-3036. [PMID: 35097296 PMCID: PMC8793060 DOI: 10.1021/acsomega.1c06114] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 12/30/2021] [Indexed: 05/23/2023]
Abstract
In this article, we reported a hierarchical structure of flower-like zinc oxide (ZnO) and poly(vinyl alcohol-co-ethylene) (PVA-co-PE) nanofiber (ZnO@NF) hybrid membranes for high-performance air filters. Monodispersed flower-like ZnO superstructures were fabricated using a template-free and surfactant-free hydrothermal method, and PVA-co-PE nanofiber yarns were prepared using a melt extrusion phase separation approach. The PVA-co-PE nanofiber yarns were subjected to high-speed shearing in a mixed aqueous solution of isopropanol and water to obtain a stably dispersed nanofiber suspension. The ZnO@NF hybrid air filter was obtained by coating the mixture of flower-like ZnO superstructures and the PVA-co-PE nanofiber suspension on the surface of the polypropylene (PP) meltblown nonwoven with the electret charge eliminated. The filtration efficiency of the ZnO@NF hybrid air filter increases with increasing loading amount of the flower-like ZnO superstructures, while the pressure drop decreases. The flower-like ZnO superstructures were incorporated into the nanofiber-interconnected networks, which significantly reduces the pressure drop of the pure PVA-co-PE nanofiber air filter. The filtration efficiency of the ZnO@NF hybrid air filter is much higher than that of PP meltblown nonwoven with eliminated electret charge, solving the hidden problem of electret charge dissipation during the protection process. It is demonstrated that these nanofiber hybrid air filters have great application potential in some special areas such as high-temperature and high-humidity environments.
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Affiliation(s)
- Zhi Yao
- Key
Laboratory of Textile Fiber and Products, Ministry of Education, Hubei
International Scientific and Technological Cooperation Base of Intelligent
Textile Materials & Application, Wuhan
Textile University, Wuhan 430200, China
- School
of Materials Science and Engineering, Wuhan
Textile University, Wuhan 430200, China
| | - Ming Xia
- Key
Laboratory of Textile Fiber and Products, Ministry of Education, Hubei
International Scientific and Technological Cooperation Base of Intelligent
Textile Materials & Application, Wuhan
Textile University, Wuhan 430200, China
| | - Ziyin Xiong
- Key
Laboratory of Textile Fiber and Products, Ministry of Education, Hubei
International Scientific and Technological Cooperation Base of Intelligent
Textile Materials & Application, Wuhan
Textile University, Wuhan 430200, China
| | - Yi Wu
- Key
Laboratory of Textile Fiber and Products, Ministry of Education, Hubei
International Scientific and Technological Cooperation Base of Intelligent
Textile Materials & Application, Wuhan
Textile University, Wuhan 430200, China
| | - Pan Cheng
- College
of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Qin Cheng
- Key
Laboratory of Textile Fiber and Products, Ministry of Education, Hubei
International Scientific and Technological Cooperation Base of Intelligent
Textile Materials & Application, Wuhan
Textile University, Wuhan 430200, China
| | - Jia Xu
- Key
Laboratory of Textile Fiber and Products, Ministry of Education, Hubei
International Scientific and Technological Cooperation Base of Intelligent
Textile Materials & Application, Wuhan
Textile University, Wuhan 430200, China
| | - Dong Wang
- Key
Laboratory of Textile Fiber and Products, Ministry of Education, Hubei
International Scientific and Technological Cooperation Base of Intelligent
Textile Materials & Application, Wuhan
Textile University, Wuhan 430200, China
- College
of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Ke Liu
- Key
Laboratory of Textile Fiber and Products, Ministry of Education, Hubei
International Scientific and Technological Cooperation Base of Intelligent
Textile Materials & Application, Wuhan
Textile University, Wuhan 430200, China
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13
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Lakshmanan A, Sarngan PP, Sarkar D. Inorganic-organic nanofiber networks with antibacteria properties for enhanced particulate filtration: The critical role of amorphous titania. CHEMOSPHERE 2022; 286:131671. [PMID: 34352548 DOI: 10.1016/j.chemosphere.2021.131671] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 07/17/2021] [Accepted: 07/23/2021] [Indexed: 05/29/2023]
Abstract
The demand for air filter media at indoor and outdoor is increasing tremendously due to air pollution and especially for problems related to airborne particulate matter (PM). To realize that, here a class nanofiber air filter media with strong antibacterial activity, hydrophobic nature, high filtration efficiency with low pressure drop is prepared. Novel organic-inorganic nanocomposite nanofibers used in this work benefited for the multifunctional performance. Amorphous titanium dioxide (mTiO2) is utilized for air filtration application which exhibits excellent enhancement of PM2.5 filtration properties and antibacterial activity. The unique Poly (vinylpyrrolidone) (PVP)-mTiO2 nanofiber air filter media acquired hydrophobic nature with a large increase in water contact angle of 127° from 36°. The resulting free-standing nanofiber filters exhibit high PM2.5 filtration efficiency of >99.9% and low pressure drop of 39 Pa. Antibacterial activity of nanofibrous membrane has been rationally engineered by titanium oxide as the barrier to bacterial ingression. A long term of 160 h filtration test has proved PVP-mTiO2 nanofibers air filter media holds outstanding 99% filtration efficiency for PM2.5. This work takes forward a significant lead in design and production of high performance and very low pressure drop air filter media with a wide range of functional properties.
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Affiliation(s)
- Agasthiyaraj Lakshmanan
- Applied NanoPhysics Laboratory, Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, 603203, India
| | - Pooja P Sarngan
- Applied NanoPhysics Laboratory, Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, 603203, India
| | - Debabrata Sarkar
- Applied NanoPhysics Laboratory, Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, 603203, India.
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14
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Luo Y, Shen Z, Ma Z, Chen H, Wang X, Luo M, Wang R, Huang J. A Cleanable Self-Assembled Nano-SiO 2/(PTFE/PEI) n/PPS Composite Filter Medium for High-Efficiency Fine Particulate Filtration. MATERIALS (BASEL, SWITZERLAND) 2021; 14:7853. [PMID: 34947457 PMCID: PMC8706235 DOI: 10.3390/ma14247853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 12/13/2021] [Accepted: 12/15/2021] [Indexed: 11/16/2022]
Abstract
A silicon dioxide/polytetrafluoroethylene/polyethyleneimine/polyphenylene sulfide (SiO2/PTFE/PEI/PPS) composite filter medium with three-dimensional network structures was fabricated by using PPS nonwoven as the substrate which was widely employed as a cleanable filter medium. The PTFE/PEI bilayers were firstly coated on the surfaces of the PPS fibers through the layer-by-layer self-assembly technique ten times, followed by the deposition of SiO2 nanoparticles, yielding the SiO2/(PTFE/PEI)10/PPS composite material. The contents of the PTFE component were easily controlled by adjusting the number of self-assembled PTFE/PEI bilayers. As compared with the pure PPS nonwoven, the obtained SiO2/(PTFE/PEI)10/PPS composite material exhibits better mechanical properties and enhanced wear, oxidation and heat resistance. When employed as a filter material, the SiO2/(PTFE/PEI)10/PPS composite filter medium exhibited excellent filtration performance for fine particulate. The PM2.5 (particulate matter less than 2.5 μm) filtration efficiency reached up to 99.55%. The superior filtration efficiency possessed by the SiO2/(PTFE/PEI)10/PPS composite filter medium was due to the uniformly modified PTFE layers, which played a dual role in fine particulate filtration. On the one hand, the PTFE layers not only increase the specific surface area and pore volume of the composite filter material but also narrow the spaces between the fibers, which were conducive to forming the dust cake quickly, resulting in intercepting the fine particles more efficiently than the pure PPS filter medium. On the other hand, the PTFE layers have low surface energy, which is in favor of the detachment of dust cake during pulse-jet cleaning, showing superior reusability. Thanks to the three-dimensional network structures of the SiO2/(PTFE/PEI)10/PPS composite filter medium, the pressure drop during filtration was low.
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Affiliation(s)
- Yan Luo
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China;
- Shaoxing Testing Institute of Quality and Technical Supervision, Market Supervision Administration of Shaoxing Municipahty, Shaoxing 312366, China; (Z.M.); (X.W.); (M.L.)
| | - Zhongyun Shen
- Shaoxing Testing Institute of Quality and Technical Supervision, Market Supervision Administration of Shaoxing Municipahty, Shaoxing 312366, China; (Z.M.); (X.W.); (M.L.)
| | - Zhihao Ma
- Shaoxing Testing Institute of Quality and Technical Supervision, Market Supervision Administration of Shaoxing Municipahty, Shaoxing 312366, China; (Z.M.); (X.W.); (M.L.)
| | - Hongfeng Chen
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China;
- Shaoxing Testing Institute of Quality and Technical Supervision, Market Supervision Administration of Shaoxing Municipahty, Shaoxing 312366, China; (Z.M.); (X.W.); (M.L.)
| | - Xiaodong Wang
- Shaoxing Testing Institute of Quality and Technical Supervision, Market Supervision Administration of Shaoxing Municipahty, Shaoxing 312366, China; (Z.M.); (X.W.); (M.L.)
| | - Minger Luo
- Shaoxing Testing Institute of Quality and Technical Supervision, Market Supervision Administration of Shaoxing Municipahty, Shaoxing 312366, China; (Z.M.); (X.W.); (M.L.)
| | - Ran Wang
- CAM-China Productivity Center for Machinery, China Academy of Machinery Science and Technology, Beijing 100044, China;
| | - Jianguo Huang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China;
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15
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Van Goethem C, Op de Beeck D, Ilyas A, Thijs M, Koeckelberghs G, Aerts PE, Vankelecom IF. Ultra-thin and highly porous PVDF-filters prepared via phase inversion for potential medical (COVID-19) and industrial use. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119710] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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16
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Kang HK, Oh HJ, Kim JY, Kim HY, Choi YO. Effect of Process Control Parameters on the Filtration Performance of PAN-CTAB Nanofiber/Nanonet Web Combined with Meltblown Nonwoven. Polymers (Basel) 2021; 13:3591. [PMID: 34685350 PMCID: PMC8537697 DOI: 10.3390/polym13203591] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/08/2021] [Accepted: 10/14/2021] [Indexed: 12/03/2022] Open
Abstract
Nanofibers have potential applications as filters for particles with diameters <10 μm owing to their large specific surface area, macropores, and controllable geometry or diameter. The filtration efficiency can be increased by creating nanonets (<50 nm) whose diameter is smaller than that of nanofibers. This study investigates the effect of process conditions on the generation of nanonet structures from a polyacrylonitrile (PAN) solution containing cation surfactants; in addition, the filtration performance is analyzed. The applied electrospinning voltage and the electrostatic treatment of meltblown polypropylene (used as a substrate) are the most influential process parameters of nanonet formation. Electrospun polyacrylonitrile-cetylmethylammonium bromide (PAN-CTAB) showed a nanofiber/nanonet structure and improved thermal and mechanical properties compared with those of the electrospun PAN. The pore size distribution and filter efficiency of the PAN nanofiber web and PAN-CTAB nanofiber/nanonet web with meltblown were measured. The resulting PAN-CTAB nanofiber/nanonet air filter showed a high filtration efficiency of 99% and a low pressure drop of 7.7 mmH2O at an air flow rate of 80 L/min. The process control methods for the nanonet structures studied herein provide a new approach for developing functional materials for air-filtration applications.
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Affiliation(s)
- Hyo Kyoung Kang
- Advanced Textile R&D Department, Korea Institute of Industrial Technology, Ansan 15588, Korea; (H.K.K.); (H.J.O.); (J.Y.K.)
- Department of Organic Materials and Fiber Engineering, Jeonbuk National University, Jeonju 54896, Korea
| | - Hyun Ju Oh
- Advanced Textile R&D Department, Korea Institute of Industrial Technology, Ansan 15588, Korea; (H.K.K.); (H.J.O.); (J.Y.K.)
| | - Jung Yeon Kim
- Advanced Textile R&D Department, Korea Institute of Industrial Technology, Ansan 15588, Korea; (H.K.K.); (H.J.O.); (J.Y.K.)
| | - Hak Yong Kim
- Department of Organic Materials and Fiber Engineering, Jeonbuk National University, Jeonju 54896, Korea
- Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju 54896, Korea
| | - Yeong Og Choi
- Advanced Textile R&D Department, Korea Institute of Industrial Technology, Ansan 15588, Korea; (H.K.K.); (H.J.O.); (J.Y.K.)
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17
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ZnO-Impregnated Polyacrylonitrile Nanofiber Filters against Various Phases of Air Pollutants. NANOMATERIALS 2021; 11:nano11092313. [PMID: 34578627 PMCID: PMC8469498 DOI: 10.3390/nano11092313] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/01/2021] [Accepted: 09/03/2021] [Indexed: 11/16/2022]
Abstract
The incorporation of metal oxide nanoparticles (NPs) in fiber filters is an effective approach to enhance the specific surface area and surface roughness of the fiber, hence improving their efficiency for fine dust capture and other gas treatment or biological applications. Nevertheless, uneven distribution of NPs limits their practical applications. In this study, a commercial silane coupling agent (3-methacryloxypropyltrimethoxysilane) was used to improve the dispersion of zinc oxide (ZnO) NPs in thin polyacrylonitrile fibers. Scanning electron microscopy (SEM) revealed that the fibers incorporating the silane-modified NPs exhibited better distribution of NPs than those prepared with pristine ZnO NPs. The silane modification enhanced the specific surface area, surface roughness, and fiber porosity. In particular, the nanofiber filter incorporating 12 wt% ZnO NPs modified with 0.5 g silane per g of ZnO NPs maintained a filtration efficiency of 99.76% with a low pressure drop of 44 Pa, excellent antibacterial activity, and could decompose organic methylene blue dye with an efficiency of 85.11% under visible light.
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18
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Ju Y, Han T, Yin J, Li Q, Chen Z, Wei Z, Zhang Y, Dong L. Bumpy structured nanofibrous membrane as a highly efficient air filter with antibacterial and antiviral property. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 777:145768. [PMID: 33684755 PMCID: PMC7954306 DOI: 10.1016/j.scitotenv.2021.145768] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 01/30/2021] [Accepted: 02/06/2021] [Indexed: 05/05/2023]
Abstract
Recently, the pandemic infectious diseases caused by coronavirus have prompted the development of air filter membranes to against infectious agents and protect human health. This research focuses on air filter membrane with antibacterial and antiviral property for high-efficiency particulate matter (PM) removal. Herein, polyamide-6 electrospun nanofibers were anchored with silver nanoparticles through hydrogen-bond. Bumpy nanorough surface and multilevel structure contribute to improve capture capacity, and silver nanoparticles provide a strong ability to inactivate bacteria and virus. In conclusion, this membrane exhibits high PM2.5 filtration efficiency of 99.99% and low pressure drop of 31 Pa; simultaneous removal of multiple aerosol pollutants, e.g., SOx, NOx, methylbenzene, L-Nicotine; superior antibacterial performance against Escherichia coli (Gram negative bacteria) and Staphylococcus aureus (Gram positive bacteria), antiviral property against Porcine Deltacoronavirus and not significant cytotoxicity. Research of air filtration material is important to remove air pollutants and to prevent infection and spread of respiratory infectious diseases.
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Affiliation(s)
- Yanyun Ju
- Center for Smart Materials and Devices, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
| | - Ting Han
- Center for Smart Materials and Devices, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
| | - Jiajun Yin
- Center for Smart Materials and Devices, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
| | - Qianqian Li
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China
| | - Zhuo Chen
- Center for Smart Materials and Devices, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
| | - Zhanyong Wei
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China
| | - Yang Zhang
- Center for Smart Materials and Devices, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China.
| | - Lijie Dong
- Center for Smart Materials and Devices, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China.
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19
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Lu T, Cui J, Qu Q, Wang Y, Zhang J, Xiong R, Ma W, Huang C. Multistructured Electrospun Nanofibers for Air Filtration: A Review. ACS APPLIED MATERIALS & INTERFACES 2021; 13:23293-23313. [PMID: 33974391 DOI: 10.1021/acsami.1c06520] [Citation(s) in RCA: 114] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Air filtration materials (AFMs) have gradually become a research hotspot on account of the increasing attention paid to the global air quality problem. However, most AFMs cannot balance the contradiction between high filtration efficiency and low pressure drop. Electrospinning nanofibers have a large surface area to volume ratio, an adjustable porous structure, and a simple preparation process that make them an appropriate candidate for filtration materials. Therefore, electrospun nanofibers have attracted increased attention in air filtration applications. In this paper, first, the preparation methods of high-performance electrospun air filtration membranes (EAFMs) and the typical surface structures and filtration principles of electrospun fibers for air filtration are reviewed. Second, the research progress of EAFMs with multistructures, including nanoprotrusion, wrinkled, porous, branched, hollow, core-shell, ribbon, beaded, nets structure, and the application of these nanofibers in air filtration are summarized. Finally, challenges with the fabrication of EAFMs, limitations of their use, and trends for future developments are presented.
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Affiliation(s)
- Tao Lu
- Joint Laboratory of Advanced Biomedical Materials (NFU-UGent) College of Chemical Engineering Nanjing Forestry University (NFU), Nanjing 210037, P. R. China
| | - Jiaxin Cui
- Joint Laboratory of Advanced Biomedical Materials (NFU-UGent) College of Chemical Engineering Nanjing Forestry University (NFU), Nanjing 210037, P. R. China
| | - Qingli Qu
- Joint Laboratory of Advanced Biomedical Materials (NFU-UGent) College of Chemical Engineering Nanjing Forestry University (NFU), Nanjing 210037, P. R. China
| | - Yulin Wang
- Joint Laboratory of Advanced Biomedical Materials (NFU-UGent) College of Chemical Engineering Nanjing Forestry University (NFU), Nanjing 210037, P. R. China
| | - Jian Zhang
- Joint Laboratory of Advanced Biomedical Materials (NFU-UGent) College of Chemical Engineering Nanjing Forestry University (NFU), Nanjing 210037, P. R. China
| | - Ranhua Xiong
- Joint Laboratory of Advanced Biomedical Materials (NFU-UGent) College of Chemical Engineering Nanjing Forestry University (NFU), Nanjing 210037, P. R. China
| | - Wenjing Ma
- Joint Laboratory of Advanced Biomedical Materials (NFU-UGent) College of Chemical Engineering Nanjing Forestry University (NFU), Nanjing 210037, P. R. China
| | - Chaobo Huang
- Joint Laboratory of Advanced Biomedical Materials (NFU-UGent) College of Chemical Engineering Nanjing Forestry University (NFU), Nanjing 210037, P. R. China
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20
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Tang H, Han D, Zhang J. Electrospinning fabrication of polystyrene-silica hybrid fibrous membrane for high-efficiency air filtration. NANO EXPRESS 2021. [DOI: 10.1088/2632-959x/abfe3d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Abstract
The development of new materials for air filtration and particulate matter (PM) pollution is critical to solving global environmental issues that threaten human health and accelerate the greenhouse effect. In this study, a novel electrospun polystyrene-SiO2 nanoparticle (PS-SNP) fibrous membrane was explored by a single-step strategy to obtain the composite multi-layered filter masks. In addition, the air filtration performance of this fibrous membrane for PM was evaluated. The effects of SiO2 on the composition, morphology, mechanical property, and surface wetting of PS-SNP membranes were studied. Allowing SiO2 to be incorporated into the PS polymer was endowed with promising superhydrophobicity and demonstrated excellent mechanical properties. As-prepared PS-SNP membranes possess significantly better filtration efficiency than pure PS membrane. Furthermore, a three-layered air filter media (viscose/PS-SNP/polyethylene terephthalate) used in this study has considerable performances compared to the commercial masks. Since this air filtration membrane has excellent features such as high air filtration and permeability, we anticipate it to have huge potential application in air filtration systems, including cleanroom, respirator, and protective clothing.
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21
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Study on a Novel Filter Media Incorporating with Core Shell Nanoencapsulated Phase Change Material: Fabrication and Evaluation. Processes (Basel) 2021. [DOI: 10.3390/pr9050731] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Thermal performance of filter media plays a significant effect on the filtration efficiency of baghouse, especially its tolerance of high temperature air and chemical erosion. In this study, nano-encapsulated phase change material within the silica shell (NPCMs) is synthesized through a self-assembly method based on polymer—hyperbranched precursor polyethoxysiloxane (PEOS). Filter media is fabricated by NPCMs through a facile dip-dry-cure process to enhance its thermal regulation and serving durability. Filter media acts as frame-supporting of the functional structure NPCMs. Incorporating NPCMs into filter media optimizes the microstructure and filtration efficiency of baghouse. The penetration rate was reduced from 457 × 10−4% of the control filter media to 5 × 10−4%. Meanwhile, the novel filter media lowers the temperature up to 20 °C than the surroundings. The novel filter media exhibits not only better mechanical properties, but also much less tensile strength loss after suffering 100 thermal shock cycles with simultaneous chemical exposure, from 37.58% to 20.37%. Overall, the filter media incorporated with NPCMs demonstrates excellent performances on filter efficiency, thermal regulation, and environmental endurance, which has the potential for extending lifespans and enhancing operation stability of filter bags in industrial air pollutant control.
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22
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Koozekonan AG, Esmaeilpour MRM, Kalantary S, Karimi A, Azam K, Golbabaei F. Fabrication and characterization of TiO 2 and MWCNT coated electrospinning nanofibers for UV protection properties. MethodsX 2021; 8:101354. [PMID: 34430255 PMCID: PMC8374361 DOI: 10.1016/j.mex.2021.101354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 03/27/2021] [Accepted: 04/11/2021] [Indexed: 12/04/2022] Open
Abstract
This paper aimed to fabricate UV protective nanofibers by the use of specific nanoparticles. The DMF/TiO2 (Titanium dioxide), DMF/MWCNT (Multi-Walled Carbon Nano Tubes), and DMF/MWCNT+TiO2 (MWCNT: TiO2 mass ratio= 1:1) solutions were transferred into a syringe with a stainless steel needle with gauge 21. The electrospinning process was performed for 3 h at the optimized conditions. The surface morphology of nanofibers was characterized by field emission scanning electron microscopy (FESEM). Fourier transform infrared spectroscopy (FTIR) was utilized to characterize functional groups of oxidized MWCNTs and investigate the successful load of nanoparticles at the fiber surface. The UV protection property of nanofibers was investigated by measuring UV rays' transmittance through the composite web. The data of Spectroscopy was used to compute the UV protection factor (UPF). (1) The effect of CNT,TiO2, and CNT+TiO2 nanoparticles on ultraviolet protection property was analyzed separately and simultaneously. (2) The different concentrations of nanoparticles, including 1,5,10, & 15 wt%, were used to fabricate UV protective nanocomposites. (3) The electrospinning condition was optimized as a 15 cm distance between the needle tip and collector, 20 KV voltage, 250 RPM drum rotation, and 1.2 ml/h feeding rate to access the best nanofibers.
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Affiliation(s)
- Aysa Ghasemi Koozekonan
- Department of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Saba Kalantary
- Department of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Karimi
- Department of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Kamal Azam
- Department of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Farideh Golbabaei
- Department of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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23
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Zhang H, Zhang X, Wang P, Chen R, Gu G, Hu S, Tian R. Laminated polyacrylonitrile nanofiber membrane codoped with boehmite nanoparticles for efficient electrostatic capture of particulate matters. NANOTECHNOLOGY 2021; 32:235601. [PMID: 33647897 DOI: 10.1088/1361-6528/abeadc] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 03/01/2021] [Indexed: 05/29/2023]
Abstract
Particulate matters (PMs) air pollution is identified as the major threat to public health and climate. High-performance air filter technology based on various electrospun nanofibers is considered as an effective strategy to eliminate the effects of PMs air pollution. However, to date, nearly all the existing micro-/nanofibers are hard to meet both requirements of high PMs removal efficiency and long service life. In this work, we reported the production of laminated polyacrylonitrile(PAN)-boehmite nanoparticles (BNPs) nanofiber structured membrane by the electrospinning process. The dimension of PAN-BNPs nanofiber can be tunable from (0.09 ± 0.03)μm to (0.81 ± 0.11)μm by controlling the PAN and BNPs concentrations in precursors. The optimized PAN-BNPs nanofiber air filter with a basis weight of 1 g m-2demonstrates the attractive attributes of high PM2.5removal efficiency up to 99.962% and low pressure drop of 58 Pa. Most importantly, after introducing the BNPs as electret, the removal efficiency is very stable under the air flow rate of 6 l min-1. This PAN-BNPs nanofiber with a long electrostatic duration time offers an approach for fabricating future high-performance air filters.
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Affiliation(s)
- Han Zhang
- Department of Electrical Engineering and Computer Science, Ningbo University, Ningbo, 315211, People's Republic of China
| | - Xiaowei Zhang
- Department of Electrical Engineering and Computer Science, Ningbo University, Ningbo, 315211, People's Republic of China
- National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093, People's Republic of China
| | - Pengjun Wang
- College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou, 325035, People's Republic of China
| | - Ruowang Chen
- Department of Electrical Engineering and Computer Science, Ningbo University, Ningbo, 315211, People's Republic of China
| | - Gangwei Gu
- Department of Electrical Engineering and Computer Science, Ningbo University, Ningbo, 315211, People's Republic of China
| | - Shiqian Hu
- Department of Electrical Engineering and Computer Science, Ningbo University, Ningbo, 315211, People's Republic of China
| | - Ruoyu Tian
- Department of Electrical Engineering and Computer Science, Ningbo University, Ningbo, 315211, People's Republic of China
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24
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Aamer H, Heo S, Jo Y. Characterization of multifunctional
PAN
/
ZnO
nanofibrous composite filter for fine dust capture and photocatalytic activity. J Appl Polym Sci 2021. [DOI: 10.1002/app.50607] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Hanaa Aamer
- Department of Environmental Science and Engineering Kyung Hee University Yongin South Korea
| | - Sujeong Heo
- Department of Environmental Science and Engineering Kyung Hee University Yongin South Korea
| | - Young‐Min Jo
- Department of Environmental Science and Engineering Kyung Hee University Yongin South Korea
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25
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Dong X, Liang X, Zhou Y, Bao K, Sameen DE, Ahmed S, Dai J, Qin W, Liu Y. Preparation of polylactic acid/TiO 2/GO nano-fibrous films and their preservation effect on green peppers. Int J Biol Macromol 2021; 177:135-148. [PMID: 33610604 DOI: 10.1016/j.ijbiomac.2021.02.125] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 02/15/2021] [Accepted: 02/16/2021] [Indexed: 12/23/2022]
Abstract
Polylactic acid (PLA)/nano-TiO2(TiO2 NPs)/Graphene oxide (GO) nano-fibrous films were prepared by ultrasonic assisted electrostatic spinning technology, and the effects of TiO2 NPs:GO mass ratio and ultrasonic power on film morphology and mechanical, thermal, barrier and antibacterial properties were investigated. The addition of TiO2 NPs and GO can significantly increase the tensile strength and elongation at the break of PLA nano-fibrous films, and improve the water barrier properties of the nano-fibrous films. The antibacterial experiment showed that the inhibition rates of the nano-fibrous films against Escherichia coli and Staphylococcus aureus after 24 h exposure to UV irradiation reached 94.4 ± 1.8% and 92.6 ± 1.7% At the same time, the fresh-keeping packaging experiment of green peppers at room temperature, through the determination of hardness, soluble solids, chlorophyll content to determine the degree of decay of green pepper, it showed that PLA/TiO2 NPs/GO nano-fibrous films can better maintain the sensory quality of green peppers, delay the rate of spoilage of green peppers, and prolong the preservation period of green peppers.
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Affiliation(s)
- Xiaorong Dong
- College of Food Science, Sichuan Agricultural University, Ya'an 625014, China
| | - Xue Liang
- College of Food Science, Sichuan Agricultural University, Ya'an 625014, China
| | - Yuting Zhou
- College of Food Science, Sichuan Agricultural University, Ya'an 625014, China
| | - Kaiwen Bao
- College of Food Science, Sichuan Agricultural University, Ya'an 625014, China
| | - Dur E Sameen
- College of Food Science, Sichuan Agricultural University, Ya'an 625014, China
| | - Saeed Ahmed
- College of Food Science, Sichuan Agricultural University, Ya'an 625014, China
| | - Jianwu Dai
- College of Mechanical and Electrical Engineering, Sichuan Agricultural University, Ya'an 625014, China
| | - Wen Qin
- College of Food Science, Sichuan Agricultural University, Ya'an 625014, China
| | - Yaowen Liu
- College of Food Science, Sichuan Agricultural University, Ya'an 625014, China; California Nano Systems Institute, University of California, Los Angeles, CA 90095, USA.
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26
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Zhang G, Xiao Y, Yin Q, Yan J, Zang C, Zhang H. In Situ Synthesis of Silver Nanoparticles on Amino-Grafted Polyacrylonitrile Fiber and Its Antibacterial Activity. NANOSCALE RESEARCH LETTERS 2021; 16:36. [PMID: 33591425 PMCID: PMC7886948 DOI: 10.1186/s11671-021-03496-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 02/07/2021] [Indexed: 05/28/2023]
Abstract
In this study, amino hyperbranched polymers (HBP)-grafted polyacrylonitrile (PAN) fiber was prepared through an amidation reaction in an autoclave. The prepared PAN-G-HBP fiber can complex Ag+ through amino groups of amino HBP, and in a hot steaming condition, Ag+ can be converted to Ag0 through the reducibility of HBP. PAN-G-HBP and Ag nanoparticles (NPs)-coated fibers were then characterized through FTIR, UV-VIS DRS, FE-SEM, EDS, XPS and antibacterial measurement. FTIR results confirmed HBP was grafted on the surface of PAN fiber. FE-SEM showed that after grafting with HBP, the average diameter of PAN fibers was amplified. EDS, XPS, and UV-VIS DRS method indicated that under hot steaming condition and with the reducibility of HBP, Ag NPs uniform coating on the PAN-G-HBP. Ag NPs-coated fibers exhibits excellent antibacterial property against Escherichia coli and Staphylococcus aureus. Even under 20 times home washing conditions, the antibacterial reduction of Ag NPs-coated PAN fiber can achieved more than 98.94%.
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Affiliation(s)
- Guangyu Zhang
- National and Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Health, School of Textile and Clothing, Nantong University, Nantong, 226019 People’s Republic of China
| | - Yao Xiao
- National and Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Health, School of Textile and Clothing, Nantong University, Nantong, 226019 People’s Republic of China
| | - Qitao Yin
- National and Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Health, School of Textile and Clothing, Nantong University, Nantong, 226019 People’s Republic of China
| | - Jiawei Yan
- Faculty of Textile Science and Technology, Shinshu University, 3-15-1, Tokida, Ueda, Nagano, 386-8567 Japan
| | - Chuanfeng Zang
- National and Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Health, School of Textile and Clothing, Nantong University, Nantong, 226019 People’s Republic of China
| | - Huiyun Zhang
- Dongfang Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, 100078 People’s Republic of China
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27
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Electrospun-based TiO2 nanofibers for organic pollutant photodegradation: a comprehensive review. REV CHEM ENG 2021. [DOI: 10.1515/revce-2020-0022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Abstract
Titanium dioxide (TiO2) is commonly used as a photocatalyst in the removal of organic pollutants. However, weaknesses of TiO2 such as fast charge recombination and low visible light usage limit its industrial application. Furthermore, photocatalysts that are lost during the treatment of pollutants create the problem of secondary pollutants. Electrospun-based TiO2 fiber is a promising alternative to immobilize TiO2 and to improve its performance in photodegradation. Some strategies have been employed in fabricating the photocatalytic fibers by producing hollow fibers, porous fibers, composite TiO2 with magnetic materials, graphene oxide, as well as doping TiO2 with metal. The modification of TiO2 can improve the absorption of TiO2 to the visible light area, act as an electron acceptor, provide large surface area, and promote the phase transformation of TiO2. The improvement of TiO2 properties can enhance carrier transfer rate which reduces the recombination and promotes the generation of radicals that potentially degrade organic pollutants. The recyclability of fibers, calcination effect, photocatalytic reactors used, operation parameters involved in photodegradation as well as the commercialization potential of TiO2 fibers are also discussed in this review.
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28
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Xu Q, Wang G, Xiang C, Cong X, Gai X, Zhang S, Zhang M, Zhang H, Luan J. Preparation of a novel poly (ether ether ketone) nonwoven filter and its application in harsh conditions for dust removal. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117555] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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29
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Gao H, He W, Yu R, Hammer T, Xu G, Wang J. Aerodynamic property and filtration evaluation of airborne graphene nanoplatelets with plate-like shape and folded structure. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117293] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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30
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Li D, Shen Y, Wang L, Liu F, Deng B, Liu Q. Hierarchical Structured Polyimide-Silica Hybrid Nano/Microfiber Filters Welded by Solvent Vapor for Air Filtration. Polymers (Basel) 2020; 12:polym12112494. [PMID: 33120971 PMCID: PMC7693890 DOI: 10.3390/polym12112494] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 10/14/2020] [Accepted: 10/22/2020] [Indexed: 11/23/2022] Open
Abstract
Electrospun polymer membranes were considered to be promising materials for fine particulate matter (PM) filtration. However, the poor mechanical properties of the electrospun membrane restricted their application for pressure-driven air filtration. Herein, strength-enhanced electrospun polyimide (PI) membranes were demonstrated via a synergistic approach. Solvent-vapor treatment was utilized to introduce extra bonding at the cross points of PI nanofiber, while SiO2 nanoparticles (SiO2 NPs) were used to reinforce the body of nanofibers. The mechanical strength and filtration performance of hybrid membranes could be regulated by adjusting the quantity of SiO2 NPs. The tensile strength of the pure PI membrane was increased by 33% via adding 1.5% SiO2 NPs, which was further promoted by 70% after solvent-vapor treatment. With a slight reduction in pressure drop (6.5%), the filtration efficiency was not greatly suppressed by welding the SiO2 NP hybrid PI nanofibers. Moreover, the welded composite filter showed high particulate (0.3–1.0 μm) filtration efficiency (up to nearly 100%) and stable pressure drop throughout the 20 tested filtration cycles.
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Yousefzade O, Katsarava R, Puiggalí J. Biomimetic Hybrid Systems for Tissue Engineering. Biomimetics (Basel) 2020; 5:biomimetics5040049. [PMID: 33050136 PMCID: PMC7709492 DOI: 10.3390/biomimetics5040049] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 09/17/2020] [Accepted: 10/07/2020] [Indexed: 02/06/2023] Open
Abstract
Tissue engineering approaches appear nowadays highly promising for the regeneration of injured/diseased tissues. Biomimetic scaffolds are continuously been developed to act as structural support for cell growth and proliferation as well as for the delivery of cells able to be differentiated, and also of bioactive molecules like growth factors and even signaling cues. The current research concerns materials employed to develop biological scaffolds with improved features as well as complex preparation techniques. In this work, hybrid systems based on natural polymers are discussed and the efforts focused to provide new polymers able to mimic proteins and DNA are extensively explained. Progress on the scaffold fabrication technique is mentioned, those processes based on solution and melt electrospinning or even on their combination being mainly discussed. Selection of the appropriate hybrid technology becomes vital to get optimal architecture to reasonably accomplish the final applications. Representative examples of the recent possibilities on tissue regeneration are finally given.
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Affiliation(s)
- Omid Yousefzade
- Departament d’Enginyeria Química, Universitat Politècnica de Catalunya, Escola d’Enginyeria de Barcelona Est-EEBE, 08019 Barcelona, Spain;
| | - Ramaz Katsarava
- Institute of Chemistry and Molecular Engineering, Agricultural University of Georgia, Kakha Bedukidze Univesity Campus, Tbilisi 0131, Georgia;
| | - Jordi Puiggalí
- Departament d’Enginyeria Química, Universitat Politècnica de Catalunya, Escola d’Enginyeria de Barcelona Est-EEBE, 08019 Barcelona, Spain;
- Correspondence: ; Tel.: +34-93-401-5649
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Wang SJ, Zhang XY, Su D, Wang YF, Qian CM, Zhou XR, Li YZ, Zhang T. Electrospinning Ag-TiO 2 Nanorod-Loaded Air Treatment Filters and Their Applications in Air Purification. Molecules 2020; 25:E3369. [PMID: 32722272 PMCID: PMC7435764 DOI: 10.3390/molecules25153369] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 07/15/2020] [Accepted: 07/21/2020] [Indexed: 11/19/2022] Open
Abstract
The efficient treatment of the problem of air pollution is a practical issue related to human health. The development of multi-functional air treatment filters, which can remove various kinds of pollutants, including particulate matter (PM) and organic gases, is a tireless pursuit aiming to address the actual needs of humans. Advanced materials and nano-manufacturing technology have brought about the opportunity to change conventional air filters for practical demands, with the aim of achieving the high-efficiency utilization of photons, a strong catalytic ability, and the synergetic degradation of multi-pollutants. In this work, visible-responding photocatalytic air treatment filters were prepared and combined with a fast and cost-effective electrospinning process. Firstly, we synthesized Ag-loaded TiO2 nanorod composites with a controlled size and number of loaded Ag nanoparticles. Then, multi-functional air treatment filters were designed by loading catalysts on electrospinning nanofibers combined with a programmable brush. We found that such Ag-TiO2 nanorod composite-loaded nanofibers displayed prominent PM filtration (~90%) and the degradation of organic pollutants (above 90%). The superior performance of purification could be demonstrated in two aspects. One was the improvement of the adsorption of pollutants derived from the increase of the specific surface area after the loading of catalysts, and the other was the plasmonic hot carriers, which induced a broadening of the optical absorption in the visible light range, meaning that many more photons were utilized effectively. The designed air treatment filters with synergistic effects for eliminating both PM and organic pollutants have promising potential for the future design and application of novel air treatment devices.
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Affiliation(s)
- Shan-Jiang Wang
- Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China; (S.-J.W.); (X.-Y.Z.); (Y.-F.W.); (C.-M.Q.); (X.-R.Z.); (Y.-Z.L.)
- Suzhou Key Laboratory of Metal Nano-Optoelectronic Technology, Suzhou Research Institute of Southeast University, Suzhou 215123, China;
| | - Xiao-Yang Zhang
- Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China; (S.-J.W.); (X.-Y.Z.); (Y.-F.W.); (C.-M.Q.); (X.-R.Z.); (Y.-Z.L.)
- Suzhou Key Laboratory of Metal Nano-Optoelectronic Technology, Suzhou Research Institute of Southeast University, Suzhou 215123, China;
| | - Dan Su
- Suzhou Key Laboratory of Metal Nano-Optoelectronic Technology, Suzhou Research Institute of Southeast University, Suzhou 215123, China;
| | - Yun-Fan Wang
- Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China; (S.-J.W.); (X.-Y.Z.); (Y.-F.W.); (C.-M.Q.); (X.-R.Z.); (Y.-Z.L.)
- Suzhou Key Laboratory of Metal Nano-Optoelectronic Technology, Suzhou Research Institute of Southeast University, Suzhou 215123, China;
| | - Chun-Meng Qian
- Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China; (S.-J.W.); (X.-Y.Z.); (Y.-F.W.); (C.-M.Q.); (X.-R.Z.); (Y.-Z.L.)
| | - Xin-Ru Zhou
- Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China; (S.-J.W.); (X.-Y.Z.); (Y.-F.W.); (C.-M.Q.); (X.-R.Z.); (Y.-Z.L.)
| | - Yi-Zhi Li
- Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China; (S.-J.W.); (X.-Y.Z.); (Y.-F.W.); (C.-M.Q.); (X.-R.Z.); (Y.-Z.L.)
| | - Tong Zhang
- Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China; (S.-J.W.); (X.-Y.Z.); (Y.-F.W.); (C.-M.Q.); (X.-R.Z.); (Y.-Z.L.)
- Suzhou Key Laboratory of Metal Nano-Optoelectronic Technology, Suzhou Research Institute of Southeast University, Suzhou 215123, China;
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Baysal T, Noor N, Demir A. Nanofibrous MgO composites: structures, properties, and applications. POLYM-PLAST TECH MAT 2020. [DOI: 10.1080/25740881.2020.1759212] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Tuğba Baysal
- Nanoscience and Nanoengineering Programme, Istanbul Technical University, Istanbul, Turkey
- Institute of Nanotechnology, Gebze Technical University, Kocaeli, Turkey
| | - Nuruzzaman Noor
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
| | - Ali Demir
- Department of Textile Engineering, Istanbul Technical University, Istanbul, Turkey
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Liu Y, Qian X, Zhang H, Wang L, Zou C, Cui Y. Preparing micro/nano-fibrous filters for effective PM 2.5 under low filtration resistance. Chem Eng Sci 2020. [DOI: 10.1016/j.ces.2020.115523] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Wang Z, Zhang Y, Ma XYD, Ang J, Zeng Z, Ng BF, Wan MP, Wong SC, Lu X. Polymer/MOF-derived multilayer fibrous membranes for moisture-wicking and efficient capturing both fine and ultrafine airborne particles. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2019.116183] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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36
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Ying T, Su J, Jiang Y, Ke Q, Xu H. A pre-wetting induced superhydrophilic/superlipophilic micro-patterned electrospun membrane with self-cleaning property for on-demand emulsified oily wastewater separation. JOURNAL OF HAZARDOUS MATERIALS 2020; 384:121475. [PMID: 31776078 DOI: 10.1016/j.jhazmat.2019.121475] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 10/12/2019] [Accepted: 10/13/2019] [Indexed: 06/10/2023]
Abstract
In this work, a pre-wetting induced superhydrophilic/superlipophilic micro-patterned membrane with surface-loaded BiVO4 nanoparticles (Bi/PDA@PT) was successfully prepared by electrospinning and polydopamine (PDA) surface modification technology for highly efficient emulsified oily wastewater separation. The results showed that the as-prepared membranes exhibited micro hole-patterned structures and the BiVO4 nanoparticles were uniformly deposited on the surfaces of fibers to construct hierarchical porous structures by using PDA as an adhesive polymeric bridge. During the separation process of emulsified oily wastewater, the hierarchical porous structures in membranes significantly improved the separation flux, which was nearly 2-3 times than that of the non-patterned membranes. Based on the existence of PDA, the membranes exhibited prewetting-induced superoleophobicity under water and superhydrophobicity under oil, which made it possible for them to separate both water-in-oil and oil-in-water emulsified oily wastewater selectively and efficiently. Moreover, the BiVO4 nanoparticles loaded on the membranes could degrade the oily contaminants adsorbed on the membranes (nearly 100%) under visible light. All these attractive features demonstrate that the Bi/PDA@PT membranes show a great potential for sustainable and efficient emulsified oily wastewater separation.
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Affiliation(s)
- Ting Ying
- College of Chemical and Materials Sciences, Shanghai Normal University, No. 100 Guilin Road, Shanghai, 200234, China
| | - Jiafei Su
- College of Chemical and Materials Sciences, Shanghai Normal University, No. 100 Guilin Road, Shanghai, 200234, China
| | - Yijing Jiang
- College of Chemical and Materials Sciences, Shanghai Normal University, No. 100 Guilin Road, Shanghai, 200234, China
| | - Qinfei Ke
- College of Chemical and Materials Sciences, Shanghai Normal University, No. 100 Guilin Road, Shanghai, 200234, China.
| | - He Xu
- College of Chemical and Materials Sciences, Shanghai Normal University, No. 100 Guilin Road, Shanghai, 200234, China.
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Huang X, Zhang G, Tang Z. Facile Fabrication of Ce/V-Modified Multi-Channel TiO 2 Nanotubes and Their Enhanced Selective Catalytic Reduction Performance. Chem Asian J 2020; 15:371-379. [PMID: 31833207 DOI: 10.1002/asia.201901535] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 12/11/2019] [Indexed: 11/10/2022]
Abstract
To optimize one-dimensional (1D) TiO2 nanofibers, tailor-made multi-channel TiO2 nanotubes have been successfully fabricated by electrospinning technology. After loading with Ce and V, the CeVTi-tube catalyst exhibited a broad working temperature window and acceptable resistance to H2 O and SO2 for elimination of NOx . The corresponding analysis revealed that the multi-channel structure provided more surface adsorbed oxygen species and that the wall of nanotubes anchored active components efficiently, which was beneficial to improve the stability as well as dispersion of the active components. Besides, a synergistic effect between Ce and V easily occurred at the CeVTi-tube catalyst, and its reducibility was significantly improved since the electron transformation between Ce and V was dramatically enhanced. Consequently, the tailor-made multi-channel CeVTi-tube catalyst exhibited satisfied de-NOx efficiency at the temperature range of 220-460 °C. It seemed that the multi-channel TiO2 nanotubes hold great potential as an excellent carrier for SCR catalysts.
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Affiliation(s)
- Xiaosheng Huang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100039, P. R. China
| | - Guodong Zhang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
| | - Zhicheng Tang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, P. R. China.,Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China
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38
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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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39
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Liu Y, Qian X, Wang L, Qian Y, Bai H, Wang X. Hierarchical micro/nanofibrous filter for effective fine-particle capture. POWDER TECHNOL 2020. [DOI: 10.1016/j.powtec.2019.11.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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40
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Affiliation(s)
- Arun Karthick Selvam
- Department of Biomedical Engineering, SSN College of Engineering, Chennai, India
- Department of Textile Technology, Anna University, Chennai, India
| | - Devi Baskar
- Department of Textile Technology, Anna University, Chennai, India
| | - Gobi Nallathambi
- Department of Textile Technology, Anna University, Chennai, India
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41
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Su J, Cheng C, Guo Y, Xu H, Ke Q. OMS-2-based catalysts with controllable hierarchical morphologies for highly efficient catalytic oxidation of formaldehyde. JOURNAL OF HAZARDOUS MATERIALS 2019; 380:120890. [PMID: 31325698 DOI: 10.1016/j.jhazmat.2019.120890] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Revised: 06/05/2019] [Accepted: 07/11/2019] [Indexed: 06/10/2023]
Abstract
Cryptomelane-type octahedral molecular sieve (OMS-2) catalysts are currently attracting tremendous attention due to their low-cost and remarkable thermo-catalytic activity. However, it is still difficult for OMS-2 catalysts to completely degrade formaldehyde at relatively low or even ambient temperature. In this work, OMS-2 catalysts with different ratios of length to diameter were prepared and the OMS-2-s with the minim ratio of length to diameter (1-3) exhibited the best catalytic performance than the other samples. Then, the optimized OMS-2-s nanorods were loaded on the SiO2 nanofibers via a simultaneous electrospining-spray strategy. The evaluation for the dynamic catalytic activities of the samples showed that, the T50 (HCHO conversion reached to 50%) for the OMS-2/SiO2 nanofibrous membranes was decreased by 24 °C than the OMS-2-s nanorods. Furthermore, in the static experiment of HCHO decomposition, the composite membrane could achieve a catalytic efficiency of 52.3% at 25 °C, much higher than that of the OMS-2-s nanorods (45.9%). This work offers a new strategy to improve the catalytic efficiency of OMS-2 by controlling the morphology and loading of OMS-2 nanorods, and also designs a kind of advanced nano OMS-2-based nanofibrous membranes with hierarchical nanostructures for the highly efficient formaldehyde elimination during the practical application.
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Affiliation(s)
- Jiafei Su
- College of Life and Environmental Sciences, Shanghai Normal University, No. 100 Guilin Road, Shanghai 200234, China
| | - Cuilian Cheng
- College of Life and Environmental Sciences, Shanghai Normal University, No. 100 Guilin Road, Shanghai 200234, China
| | - Yaping Guo
- College of Life and Environmental Sciences, Shanghai Normal University, No. 100 Guilin Road, Shanghai 200234, China
| | - He Xu
- College of Life and Environmental Sciences, Shanghai Normal University, No. 100 Guilin Road, Shanghai 200234, China.
| | - Qinfei Ke
- College of Life and Environmental Sciences, Shanghai Normal University, No. 100 Guilin Road, Shanghai 200234, China.
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42
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Ryšánek P, Benada O, Tokarský J, Syrový M, Čapková P, Pavlík J. Specific structure, morphology, and properties of polyacrylonitrile (PAN) membranes prepared by needleless electrospinning; Forming hollow fibers. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 105:110151. [DOI: 10.1016/j.msec.2019.110151] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 08/20/2019] [Accepted: 08/29/2019] [Indexed: 01/03/2023]
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Al-Attabi R, Rodriguez-Andres J, Schütz JA, Bechelany M, des Ligneris E, Chen X, Kong L, Morsi YS, Dumée LF. Catalytic electrospun nano-composite membranes for virus capture and remediation. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.115806] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Wei ZS, He YM, Huang ZS, Xiao XL, Li BL, Ming S, Cheng XL. Photocatalytic membrane combined with biodegradation for toluene oxidation. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 184:109618. [PMID: 31487569 DOI: 10.1016/j.ecoenv.2019.109618] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Revised: 08/25/2019] [Accepted: 08/27/2019] [Indexed: 06/10/2023]
Abstract
Photocatalytic membrane coupled to biodegradation offers potential for degrading volatile organic compounds (VOCs) in photocatalytic membrane biofilm reactor. An intimately coupled photocatalysis and biodegradation reactor was operated in continuous operation for 500 days to treat simulated waste gas containing toluene. Toluene removal efficiency obtained 99%, with the elimination capacity of 550 g m-3·h-1. Membrane photocatalysis coupled to biodegradation was created to improve toluene removal from 11 to 20%. The dominant genera were Lysinibacillus, Hydrogenophaga, Pseudomonas at 30 d, Rudaea, Dongia, Litorilinea at 230 d xyl, Tod, Tcb, Bed, Tmo, Tbu, Tou, Dmp, Cat were functional genes of toluene metabolism, as shown by16S rDNA and metagenomic sequencing. Photocatalysis destroyed part of the toluene into biodegradable intermediates that were immediately mineralized by microorganisms in biofilm, some toluene was directly degraded by toluene degrading bacterial community into carbon dioxide and water. The novel hybrid photocatalytic membrane biofilm reactor is a cost-effective and robust alternative to VOCs treatment.
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Affiliation(s)
- Z S Wei
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510275, China.
| | - Y M He
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510275, China
| | - Z S Huang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510275, China
| | - X L Xiao
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510275, China
| | - B L Li
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510275, China
| | - S Ming
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510275, China
| | - X L Cheng
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510275, China
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45
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Guo Y, He W, Liu J. Electrospinning polyethylene terephthalate/SiO
2
nanofiber composite needle felt for enhanced filtration performance. J Appl Polym Sci 2019. [DOI: 10.1002/app.48282] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Yinghe Guo
- School of Resources & Civil EngineeringNortheastern University Shenyang 110819 China
| | - Weidong He
- School of Resources & Civil EngineeringNortheastern University Shenyang 110819 China
| | - Jingxian Liu
- School of Resources & Civil EngineeringNortheastern University Shenyang 110819 China
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46
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des Ligneris E, Dumée LF, Al-Attabi R, Castanet E, Schütz J, Kong L. Mixed Matrix Poly(Vinyl Alcohol)-Copper Nanofibrous Anti-Microbial Air-Microfilters. MEMBRANES 2019; 9:membranes9070087. [PMID: 31319526 PMCID: PMC6681029 DOI: 10.3390/membranes9070087] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 07/12/2019] [Accepted: 07/15/2019] [Indexed: 12/02/2022]
Abstract
Membranes decorated with biocide materials have shown great potential for air sanitization but can suffer from biocide agent leaching by dissolution in water. In order to tackle the diffusion of biocide metal ions from the fiber matrix, composite nanofiber membranes of poly(vinyl alcohol) (PVA) cross-linked with copper (II) acetate have been successfully engineered via sol–gel electrospinning, providing a stable mean for air bactericidal microfiltration. The novelty lies in the bonding strength and homogeneous distribution of the fiber surface biocide, where biocide metals are incorporated as a sol within a polymer matrix. The electrospinning of bead-free composite nanofibers offered over 99.5% filtration efficiency for PM2.5, with a theoretical permeance above 98%. The PVA/copper nanofiber membranes also showed satisfactory anti-bacterial performance against the gram-negative Escherichia coli within 24 h, making them promising materials for the remediation of airborne bacteria. The mechanical and chemical stability of the engineered nanocomposite electrospun nanofiber webs added to the natural biodegradability of the materials, by offering ideal low-cost sanitary solutions for the application of air disinfection in both indoor and outdoor fitting a circular economy strategy where advanced materials are redesigned to be sustainable.
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Affiliation(s)
- Elise des Ligneris
- Institute for Frontier Materials, Deakin University, Waurn Ponds 3008, Victoria, Australia.
| | - Ludovic F Dumée
- Institute for Frontier Materials, Deakin University, Waurn Ponds 3008, Victoria, Australia
| | - Riyadh Al-Attabi
- Institute for Frontier Materials, Deakin University, Waurn Ponds 3008, Victoria, Australia
| | - Erwan Castanet
- Institute for Frontier Materials, Deakin University, Waurn Ponds 3008, Victoria, Australia
| | - Jürg Schütz
- Commonwealth Scientific and Industrial Research Organization CSIRO, Waurn Ponds 3008, Victoria, Australia
| | - Lingxue Kong
- Institute for Frontier Materials, Deakin University, Waurn Ponds 3008, Victoria, Australia
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47
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48
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Reddy KR, Reddy CV, Nadagouda MN, Shetti NP, Jaesool S, Aminabhavi TM. Polymeric graphitic carbon nitride (g-C 3N 4)-based semiconducting nanostructured materials: Synthesis methods, properties and photocatalytic applications. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 238:25-40. [PMID: 30844543 DOI: 10.1016/j.jenvman.2019.02.075] [Citation(s) in RCA: 133] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 02/12/2019] [Accepted: 02/16/2019] [Indexed: 05/06/2023]
Abstract
In recent years, various facile and low-cost methods have been developed for the synthesis of advanced nanostructured photocatalytic materials. These catalysts are required to mitigate the energy crisis, environmental deterioration, including water and air pollution. Among the various semiconductors explored, recently novel classes of polymeric graphitic carbon nitride (g-C3N4)-based heterogeneous photocatalysts have established much greater importance because of their unique physiochemical properties, large surface area, low price, and long service life, ease of synthesis, product scalability, controllable band gap properties, low toxicity, and high photocatalytic activity. The present comprehensive review focuses on recent achievements in a number of facile chemical synthesis methods for semiconducting polymeric carbon nitrides and their heterogeneous nanohybrids with various dopants, nanostructured metals, metal oxides, and nanocarbons, as well as the parameters influencing their physiochemical properties and photocatalytic efficiency, which are discussed with reference to various catalytic applications such as air (NOx) purification, wastewater treatment, hydrogen generation, CO2 reduction, and chemical transformation. The mechanisms for the superior photocatalytic activity of polymeric g-C3N4-based heterogeneous photocatalysts are also discussed. Finally, the challenges, prospects, and future directions for photocatalytic polymeric g-C3N4-based semiconducting materials are described.
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Affiliation(s)
- Kakarla Raghava Reddy
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia
| | - Ch Venkata Reddy
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, 712-749, South Korea
| | - Mallikarjuna N Nadagouda
- Department of Mechanical and Materials Engineering, Wright State University, Dayton, OH 45324, United States
| | - Nagaraj P Shetti
- Department of Chemistry, K. L. E. Institute of Technology, Gokul, Hubballi, 580030, Affiliated to Visvesvaraya Technological University, Karnataka, India
| | - Shim Jaesool
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, 712-749, South Korea.
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49
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Komaladewi A, Aryanti P, Subagia ID, Wenten IG. Membrane technology in air pollution control: prospect and challenge. ACTA ACUST UNITED AC 2019. [DOI: 10.1088/1742-6596/1217/1/012046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Abstract
Rapid growth in environmental awareness raised the strict regulations on air pollution control and led to great developments in air filtration or cleaning technologies. The membrane is one of the promising technologies for air filtration due to its high efficiency, low cost, and easy to scale-up. Two types of air filtration membranes have been used to provide high efficiencies in contaminant removal, namely electro-spun fibrous and microporous polymeric membranes. The fibrous membranes composed of randomly oriented fibers, either micro-or nano-fiber, and have been widely used to remove fine particles, such as aerosols. Meanwhile, the microporous membranes have a pore size that can remove both particulate and molecular, such as toxic gases. This paper reviews the role of membrane technologies in air pollution control. The performances of the membranes are presented comprehensively. Besides, the developments of the membranes to improve the filtration efficiency and reduce air-flow resistance are also discussed.
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Al-Attabi R, Morsi Y, Kujawski W, Kong L, Schütz JA, Dumée LF. Wrinkled silica doped electrospun nano-fiber membranes with engineered roughness for advanced aerosol air filtration. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.01.049] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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