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Li L, Gao Y, Nie G, Yan X, Wang S, Zhang T, Ramakrishna S, Long YZ, Han W. Biodegradable Poly (L-Lactic acid) Fibrous Membrane with Ribbon-Structured Fibers and Ultrafine Nanofibers Enhances Air Filtration Performance. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2402317. [PMID: 38988143 DOI: 10.1002/smll.202402317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Revised: 06/25/2024] [Indexed: 07/12/2024]
Abstract
Here, the poly (l-lactic acid) (PLLA) membrane with multi-structured networks (MSN) is successfully prepared by electrospinning technology for the first time. It is composed of micron-sized ribbon-structured fibers and ultrafine nanofibers with a diameter of tens of nanometers, and they are connected to form the new network structure. Thanks to the special fiber morphology and structure, the interception and electrostatic adsorption ability for against atmospheric particulate matter (PM) are significantly enhanced, and the resistance to airflow is reduced due to the "slip effect" caused by ultrafine nanofibers. The PLLA MSN membrane shows excellent filtration performance with ultra-high filtration efficiency (>99.9% for PM2.5 and >99.5% for PM0.3) and ultra-low pressure drop (≈20 Pa). It has demonstrated filtration performance that even exceeds current non-biodegradable polymer materials, laying the foundation for future applications of biodegradable PLLA in the field of air filtration. In addition, this new structure also provides a new idea for optimizing the performance of other polymer materials.
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Affiliation(s)
- Lin Li
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao, 266071, China
| | - Yuyu Gao
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao, 266071, China
| | - Guangzhi Nie
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao, 266071, China
| | - Xunchang Yan
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao, 266071, China
| | - Sai Wang
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao, 266071, China
| | - Tong Zhang
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao, 266071, China
| | - Seeram Ramakrishna
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao, 266071, China
| | - Yun-Ze Long
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao, 266071, China
- State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao, 266071, China
| | - Wenpeng Han
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao, 266071, China
- State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao, 266071, China
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2
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He Y, Liu H, Ying W. Constructing Stable Polyvinyl Alcohol/Gelatin/Cellulose Nanocrystals Composite Electrospun Membrane with Excellent Filtration Efficiency for PM2.5. Polymers (Basel) 2024; 16:1656. [PMID: 38932006 PMCID: PMC11207967 DOI: 10.3390/polym16121656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2024] [Revised: 06/07/2024] [Accepted: 06/07/2024] [Indexed: 06/28/2024] Open
Abstract
Considering the high demand for air quality, the development of biomass-based air filtration membranes with high air filtration efficiency and good stability is an urgent task. In this work, polyvinyl alcohol (PVA), gelatin (GA), and cellulose nanocrystals (CNC) were mixed and prepared into a membrane through an electrospinning method for air filtration. After a hydrophobic modification, the modified PVA/GA/CNC composite membrane showed excellent filtration efficiency for PM2.5 (97.65%) through the internal three-dimensional structure barrier and the electrostatic capture effect of the CNC with a negative charge, as well as a low-pressure drop (only 50 Pa). In addition, the modified PVA/GA/CNC composite membrane had good mechanical properties (maximum tensile fracture rate of 78.3%) and high stability (air filtration efficiency of above 90% after five wash-filter cycles and a high-temperature treatment at 200 °C). It is worth noting that the whole preparation process is completed without organic solvents, putting forward a new strategy for the construction of green air filtration membranes.
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Affiliation(s)
- Yang He
- Jiyang College of Zhejiang Agriculture and Forestry University, Shaoxing 311800, China;
| | | | - Weijun Ying
- Jiyang College of Zhejiang Agriculture and Forestry University, Shaoxing 311800, China;
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Liu H, Lai W, Shi Y, Tian L, Li K, Bian L, Xi Z, Lin B. One-Step Fast Fabrication of Electrospun Fiber Membranes for Efficient Particulate Matter Removal. Polymers (Basel) 2024; 16:209. [PMID: 38257008 PMCID: PMC10818706 DOI: 10.3390/polym16020209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 01/04/2024] [Accepted: 01/08/2024] [Indexed: 01/24/2024] Open
Abstract
Rapid social and industrial development has resulted in an increasing demand for fossil fuel energy, which increases particulate matter (PM) pollution. In this study, we employed a simple one-step electrospinning technique to fabricate polysulfone (PSF) fiber membranes for PM filtration. A 0.3 g/mL polymer solution with an N,N-dimethylformamide:tetrahydrofuran volume ratio of 3:1 yielded uniform and bead-free PSF fibers with a diameter of approximately 1.17 μm. The PSF fiber membrane exhibited excellent hydrophobicity and mechanical properties, including a tensile strength of 1.14 MPa and an elongation at break of 116.6%. Finally, the PM filtration performance of the PSF fiber membrane was evaluated. The filtration efficiencies of the membrane for PM2.5 and PM1.0 were approximately 99.6% and 99.2%, respectively. The pressure drops were 65.0 and 65.2 Pa, which were significantly lower than those of commercial air filters. Using this technique, PSF fiber membrane filters can be easily fabricated over a large area, which is promising for numerous air filtration systems.
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Affiliation(s)
- Huanliang Liu
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; (H.L.); (W.L.); (Y.S.); (L.T.); (K.L.); (L.B.)
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment & Food Safety, Tianjin 300050, China
| | - Wenqing Lai
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; (H.L.); (W.L.); (Y.S.); (L.T.); (K.L.); (L.B.)
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment & Food Safety, Tianjin 300050, China
| | - Yue Shi
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; (H.L.); (W.L.); (Y.S.); (L.T.); (K.L.); (L.B.)
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment & Food Safety, Tianjin 300050, China
| | - Lei Tian
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; (H.L.); (W.L.); (Y.S.); (L.T.); (K.L.); (L.B.)
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment & Food Safety, Tianjin 300050, China
| | - Kang Li
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; (H.L.); (W.L.); (Y.S.); (L.T.); (K.L.); (L.B.)
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment & Food Safety, Tianjin 300050, China
| | - Liping Bian
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; (H.L.); (W.L.); (Y.S.); (L.T.); (K.L.); (L.B.)
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment & Food Safety, Tianjin 300050, China
| | - Zhuge Xi
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; (H.L.); (W.L.); (Y.S.); (L.T.); (K.L.); (L.B.)
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment & Food Safety, Tianjin 300050, China
| | - Bencheng Lin
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; (H.L.); (W.L.); (Y.S.); (L.T.); (K.L.); (L.B.)
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment & Food Safety, Tianjin 300050, China
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4
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Sepahvand S, Kargarzadeh H, Jonoobi M, Ashori A, Ismaeilimoghadam S, Varghese RT, Chirayl CJ, Azimi B, Danti S. Recent developments in nanocellulose-based aerogels as air filters: A review. Int J Biol Macromol 2023; 246:125721. [PMID: 37419257 DOI: 10.1016/j.ijbiomac.2023.125721] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 06/20/2023] [Accepted: 07/04/2023] [Indexed: 07/09/2023]
Abstract
Today, one of the world's critical environmental issues is air pollution, which is the most important parameter threatening human health and the environment. Synthetic polymers are widely used in industrial air filter production; however, they are incompatible with the environment due to their secondary pollution. Using renewable materials to manufacture air filters is not only environmentally friendly but also essential. Recently, a new generation of biopolymers called cellulose nanofiber (CNF)-based hydrogels have been proposed, with three dimensional (3D) nanofiber networks and unique physical and mechanical properties. CNFs have become a hot research topic for application as air filter materials because they can compete with synthetic nanofibers due to their advantages, such as abundant, renewable, nontoxic, high specific surface area, high reactivity, flexibility, low cost, low density, and network structure formation. The main focus of the current review is the recent progress in the preparation and employment of nanocellulose materials, especially CNF-based hydrogels, to absorb PM and CO2. This study summarizes the preparation methods, modification strategies, fabrications, and further applications of CNF-based aerogels as air filters. Lastly, challenges in the fabrication of CNFs, and trends for future developments are presented.
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Affiliation(s)
- Sima Sepahvand
- Department of Bio Systems, Faculty of New Technologies and Aerospace Engineering, Zirab Campus, Shahid Beheshti University, Tehran, Iran
| | - Hanieh Kargarzadeh
- Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Poland
| | - Mehdi Jonoobi
- Department of Wood and Paper Science and Technology, Faculty of Natural Resources, University of Tehran, Karaj, Iran.
| | - Alireza Ashori
- Department of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), Tehran, Iran.
| | - Saeed Ismaeilimoghadam
- Department of Wood and Paper Science and Technology, Faculty of Natural Resources, University of Tehran, Karaj, Iran
| | - Rini Thresia Varghese
- Department of Chemistry, Newman College, Thodupuzha, Kerala 685584, India; School of Chemical Sciences, Mahatma Gandhi University, Kottayam, Kerala 686560, India
| | | | - Bahareh Azimi
- Department of Translational Research on New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Serena Danti
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy
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5
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Liu X, Jiang D, Qin Y, Zhang Z, Yuan M. ZnO-PLLA/PLLA Preparation and Application in Air Filtration by Electrospinning Technology. Polymers (Basel) 2023; 15:polym15081906. [PMID: 37112053 PMCID: PMC10146834 DOI: 10.3390/polym15081906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 04/09/2023] [Accepted: 04/14/2023] [Indexed: 04/29/2023] Open
Abstract
With the increasing environmental pollution caused by disposable masks, it is crucial to develop new degradable filtration materials for medical masks. ZnO-PLLA/PLLA (L-lactide) copolymers prepared from nano ZnO and L-lactide were used to prepare fiber films for air filtration by electrospinning technology. Structural characterization of ZnO-PLLA by H-NMR, XPS, and XRD demonstrated that ZnO was successfully grafted onto PLLA. An L9(43) standard orthogonal array was employed to evaluate the effects of the ZnO-PLLA concentration, ZnO-PLLA/PLLA content, DCM(dichloromethane) to DMF(N,N-dimethylformamide) ratio, and spinning time on the air filtration capacity of ZnO-PLLA/PLLA nanofiber films. It is noteworthy that the introduction of ZnO is important for the enhancement of the quality factor (QF). The optimal group obtained was sample No. 7, where the QF was 0.1403 Pa-1, the particle filtration efficiency (PFE) was 98.3%, the bacteria filtration efficiency (BFE) was 98.42%, and the airflow resistance (Δp) was 29.2 Pa. Therefore, the as-prepared ZnO-PLLA/PLLA film has potential for the development of degradable masks.
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Affiliation(s)
- Xinxin Liu
- Green Preparation Technology of Biobased Materials National & Local Joint Engineering Research Center, Yunnan Minzu University, Kunming 650500, China
| | - Dengbang Jiang
- Green Preparation Technology of Biobased Materials National & Local Joint Engineering Research Center, Yunnan Minzu University, Kunming 650500, China
| | - Yuyue Qin
- Institute of Agriculture and Food Engineering, Kunming University of Science and Technology, Kunming 650550, China
| | - Zhihong Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Mingwei Yuan
- Green Preparation Technology of Biobased Materials National & Local Joint Engineering Research Center, Yunnan Minzu University, Kunming 650500, China
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Chantaso M, Chaiyong K, Meesupthong R, Yingkamhaeng N, Diem LN, Torgbo S, Sukyai P, Khantayanuwong S, Puangsin B, Srichola P. Sugarcane leave-derived cellulose nanocrystal/graphene oxide filter membrane for efficient removal of particulate matter. Int J Biol Macromol 2023; 234:123676. [PMID: 36796561 DOI: 10.1016/j.ijbiomac.2023.123676] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 01/31/2023] [Accepted: 02/10/2023] [Indexed: 02/16/2023]
Abstract
The goal of this study is to isolate cellulose nanocrystals (CNC) from sugarcane leaves (SCL) and fabricate filter membranes. Filter membranes consisting of the CNC and varying amount graphene oxide (GO) were fabricated using vacuum filtration technique. The α-cellulose content increased from 53.56 ± 0.49 % in untreated SCL to 78.44 ± 0.56 % and 84.99 ± 0.44 % in steam-exploded and bleached fibers, respectively. Atomic force microscopy (AFM) and transmission electron microscope (TEM) of CNC isolated from SCL indicated nanosized particles in the range of 7.3 nm and 150 nm for diameter and length, respectively. Morphologies of the fiber and CNC/GO membranes were determined by scanning electron microscopy (SEM) and crystallinity by X-ray diffraction (XRD) analysis of crystal lattice. The crystallinity index of CNC decreased with the addition of GO into the membranes. The CNC/GO-2 recorded the highest tensile index of 3.001 MPa. The removal efficiency increases with increasing GO content. The highest removal efficiency of 98.08 % was recorded for CNC/GO-2. CNC/GO-2 membrane reduced growth of Escherichia coli to 65 CFU compared to >300 CFU of control sample. SCL is a potential bioresource for isolation of cellulose nanocrystals and fabrication of high-efficiency filter membrane for particulate matter removal and inhibition of bacteria.
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Affiliation(s)
- Minthra Chantaso
- Biotechnology of Biopolymers and Bioactive Compounds Special Research Unit, Department of Biotechnology, Faculty of Agro-Industry, Kasetsart University, Chatuchak, Bangkok 10900, Thailand
| | - Kriengkrai Chaiyong
- Biotechnology of Biopolymers and Bioactive Compounds Special Research Unit, Department of Biotechnology, Faculty of Agro-Industry, Kasetsart University, Chatuchak, Bangkok 10900, Thailand
| | - Ratthapong Meesupthong
- Biotechnology of Biopolymers and Bioactive Compounds Special Research Unit, Department of Biotechnology, Faculty of Agro-Industry, Kasetsart University, Chatuchak, Bangkok 10900, Thailand
| | - Naiyasit Yingkamhaeng
- Biotechnology of Biopolymers and Bioactive Compounds Special Research Unit, Department of Biotechnology, Faculty of Agro-Industry, Kasetsart University, Chatuchak, Bangkok 10900, Thailand
| | - Luong Ngoc Diem
- Biotechnology of Biopolymers and Bioactive Compounds Special Research Unit, Department of Biotechnology, Faculty of Agro-Industry, Kasetsart University, Chatuchak, Bangkok 10900, Thailand
| | - Selorm Torgbo
- Biotechnology of Biopolymers and Bioactive Compounds Special Research Unit, Department of Biotechnology, Faculty of Agro-Industry, Kasetsart University, Chatuchak, Bangkok 10900, Thailand; Cellulose for Future Materials and Technologies Special Research Unit, Kasetsart University, Chatuchak, Bangkok 10900, Thailand
| | - Prakit Sukyai
- Biotechnology of Biopolymers and Bioactive Compounds Special Research Unit, Department of Biotechnology, Faculty of Agro-Industry, Kasetsart University, Chatuchak, Bangkok 10900, Thailand; Cellulose for Future Materials and Technologies Special Research Unit, Kasetsart University, Chatuchak, Bangkok 10900, Thailand; Center for Advanced Studies for Agriculture and Food (CASAF), Kasetsart University Institute for Advanced Studies, Kasetsart University, Chatuchak, Bangkok 10900, Thailand.
| | - Somwang Khantayanuwong
- Department of Forest Products, Faculty of Forestry, Kasetsart University, Chatuchak, Bangkok 10900, Thailand
| | - Buapan Puangsin
- Department of Forest Products, Faculty of Forestry, Kasetsart University, Chatuchak, Bangkok 10900, Thailand
| | - Preeyanuch Srichola
- Kasetsart Agricultural and Agro-Industrial Product Improvement Institute, Kasetsart University, Chatuchak, Bangkok 10900, Thailand
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Wu R, Shanbhag S, Selvaganapathy PR. Efficient, Breathable, and Compostable Multilayer Air Filter Material Prepared from Plant-Derived Biopolymers. MEMBRANES 2023; 13:380. [PMID: 37103807 PMCID: PMC10146039 DOI: 10.3390/membranes13040380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/15/2023] [Accepted: 03/23/2023] [Indexed: 06/19/2023]
Abstract
State-of-art face masks and respirators are fabricated as single-use devices using microfibrous polypropylene fabrics, which are challenging to be collected and recycled at a community scale. Compostable face masks and respirators can offer a viable alternative to reducing their environmental impact. In this work, we have developed a compostable air filter produced by electrospinning a plant-derived protein, zein, on a craft paper-based substrate. The electrospun material is tailored to be humidity tolerant and mechanically durable by crosslinking zein with citric acid. The electrospun material demonstrated a high particle filtration efficiency (PFE) of 91.15% and a high pressure drop (PD) of 191.2 Pa using an aerosol particle diameter of 75 ± 2 nm at a face velocity of 10 cm/s. We deployed a pleated structure to reduce the PD or improve the breathability of the electrospun material without compromising the PFE over short- and long-duration tests. Over a 1 h salt loading test, the PD of a single-layer pleated filter increased from 28.9 to 39.1 Pa, while that of the flat sample increased from 169.3 to 327 Pa. The stacking of pleated layers enhanced the PFE while retaining a low PD; a two-layer stack with a pleat width of 5 mm offers a PFE of 95.4 ± 0.34% and a low PD of 75.2 ± 6.1 Pa.
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Affiliation(s)
- Rong Wu
- Department of Mechanical Engineering, McMaster University, 1280 Main St W, Hamilton, ON L8S 4L8, Canada
| | - Sneha Shanbhag
- Department of Mechanical Engineering, McMaster University, 1280 Main St W, Hamilton, ON L8S 4L8, Canada
| | - P. Ravi Selvaganapathy
- Department of Mechanical Engineering, McMaster University, 1280 Main St W, Hamilton, ON L8S 4L8, Canada
- School of Biomedical Engineering, McMaster University, 1280 Main St W, Hamilton, ON L8S 4L8, Canada
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8
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Deng Y, Zhu M, Lu T, Fan Q, Ma W, Zhang X, Chen L, Min H, Xiong R, Huang C. Hierarchical fiber with granular-convex structure for highly efficient PM2.5 capture. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122235] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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9
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A novel gradient structured nanofiber and silver nanowire composite membrane for multifunctional air Filters, oil water Separation, and health monitoring flexible wearable devices. J Colloid Interface Sci 2023; 630:484-493. [DOI: 10.1016/j.jcis.2022.10.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 10/10/2022] [Accepted: 10/11/2022] [Indexed: 11/07/2022]
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10
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Grasso G, Zane D, Foglia S, Dragone R. Application of Electrospun Water-Soluble Synthetic Polymers for Multifunctional Air Filters and Face Masks. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27248753. [PMID: 36557885 PMCID: PMC9784125 DOI: 10.3390/molecules27248753] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/30/2022] [Accepted: 12/05/2022] [Indexed: 12/14/2022]
Abstract
The worsening of air quality is an urgent human health issue of modern society. The outbreak of COVID-19 has made the improvement of air quality even more imperative, both for the general achievement of major health gains and to reduce the critical factors in the transmission of airborne diseases. Thus, the development of solutions for the filtration of airborne pollutants is pivotal. Electrospinning has gained wide attention as an effective fabrication technique for preparing ultrafine fibers which are specifically tailored for air filtration. Nevertheless, the utilization of harmful organic solvents is the major barrier for the large-scale applicability of electrospinning. The use of water-soluble synthetic polymers has attracted increasing attention as a 'green' solution in electrospinning. We reported an overview of the last five years of the scientific literature on the use of water-soluble synthetic polymers for the fabrication of multifunctional air filters layers. Most of recent studies have focused on polyvinyl alcohol (PVA). Various modifications of electrospun polymers have been also described. The use of water-soluble synthetic polymers can contribute to the scalability of electrospinning and pave the way to innovative applications. Further studies will be required to fully harness the potentiality of these 'greener' electrospinning processes.
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Affiliation(s)
- Gerardo Grasso
- Istituto per lo Studio dei Materiali Nanostrutturati Sede Sapienza, Consiglio Nazionale delle Ricerche, P. le Aldo Moro 5, 00185 Rome, Italy
- Correspondence: ; Tel.: +39-06-4991-3380
| | - Daniela Zane
- Istituto per lo Studio dei Materiali Nanostrutturati Sede Sapienza, Consiglio Nazionale delle Ricerche, P. le Aldo Moro 5, 00185 Rome, Italy
| | - Sabrina Foglia
- Istituto per lo Studio dei Materiali Nanostrutturati Sede Sapienza, Consiglio Nazionale delle Ricerche, P. le Aldo Moro 5, 00185 Rome, Italy
- Istituto dei Materiali per l’Elettronica ed il Magnetismo, Consiglio Nazionale delle Ricerche, Parco Area delle Scienze 37/A, 43124 Parma, Italy
| | - Roberto Dragone
- Istituto per lo Studio dei Materiali Nanostrutturati Sede Sapienza, Consiglio Nazionale delle Ricerche, P. le Aldo Moro 5, 00185 Rome, Italy
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11
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da Mata GC, Morais MS, de Oliveira WP, Aguiar ML. Composition Effects on the Morphology of PVA/Chitosan Electrospun Nanofibers. Polymers (Basel) 2022; 14:polym14224856. [PMID: 36432987 PMCID: PMC9698655 DOI: 10.3390/polym14224856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 11/01/2022] [Accepted: 11/03/2022] [Indexed: 11/16/2022] Open
Abstract
Since the SARS-CoV-2 pandemic, the interest in applying nanofibers t air filtration and personal protective equipment has grown significantly. Due to their morphological and structural properties, nanofibers have potential applications for air filtration in masks and air filters. However, most nanofiber membrane materials used for these purposes are generally non-degradable materials, which can contribute to the disposal of plastic waste into the environment. Hence, this work aims to produce polyvinyl alcohol (PVA) and chitosan (CS) biodegradable nanofibers with controlled morphology and structure via electrospinning. An experimental design was used to investigate the effects of the PVA|CS ratio and concentration on the properties of the electrospinning compositions and electrospun nanofiber mat. The electrospinning parameters were constant for all experiments: Voltage of 20 kV, a feed rate of 0.5 mL·h−1, and a distance of 10 cm between the needle and a drum collector. CS proved to be an efficient adjuvant to the PVA’s electrospinning, obtaining a wide range of nanofiber diameters. Furthermore, 6.0% PVA and 1% CS were the best compositions after optimization with the response surface methodology, with a mean fiber diameter of 204 nm. The addition of biocide agents using the optimized condition was also investigated, using surfactants, citric acid, and pure and encapsulated essential oils of Lippia sidoides. Pure oil improved the material without enlarging the nanofiber sizes compared to the other additives. The nanofiber membranes produced have the potential to be used in air filtration or wound-dressing applications where biocidal activity is needed.
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Affiliation(s)
- Gustavo Cardoso da Mata
- Department of Chemical Engineering, Federal University of São Carlos, Rod. Washington Luiz, km 235, SP310, São Carlos 13565-905, SP, Brazil
| | - Maria Sirlene Morais
- Faculty of Pharmaceutical Science of Ribeirão Preto, University of São Paulo, Av. do Café s/no, Bairro Monte Alegre, Ribeirão Preto 14040-903, SP, Brazil
| | - Wanderley Pereira de Oliveira
- Faculty of Pharmaceutical Science of Ribeirão Preto, University of São Paulo, Av. do Café s/no, Bairro Monte Alegre, Ribeirão Preto 14040-903, SP, Brazil
| | - Mônica Lopes Aguiar
- Department of Chemical Engineering, Federal University of São Carlos, Rod. Washington Luiz, km 235, SP310, São Carlos 13565-905, SP, Brazil
- Correspondence:
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12
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Ahmad S, Jahan Z, Sher F, Niazi MBK, Noor T, Hou H, Azhar O, Sher EK. Polyvinyl alcohol and aminated cellulose nanocrystal membranes with improved interfacial compatibility for environmental applications. ENVIRONMENTAL RESEARCH 2022; 214:113793. [PMID: 35780854 DOI: 10.1016/j.envres.2022.113793] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 06/08/2022] [Accepted: 06/27/2022] [Indexed: 06/15/2023]
Abstract
Biogas up-gradation is a useful method to control CO2 emission and enhance the green process. The demand for renewable sources is increasing due to the depletion of fossil fuels. Thin-film nanocomposites functionalized with tunable molecular-sieving nanomaterials have been employed to tailor membranes with enhanced permeability and selectivity. In this work, the cellulose nanocrystals as a filler in the polyvinyl alcohol matrix are prepared to achieve high-performance facilitated transport membranes for CO2 capture. Considering the mechanical stability, interfacial compatibility and high moisture uptake of the filler, the main objective of this work was to develop a novel aminated CNC (Am-CNC)/polyvinyl alcohol nanocomposite membrane for biogas upgrading. The hydroxyl groups (O-H) on the reducing end of the cellulose nanocrystals were replaced by amino groups (N-H2). It was discovered through Scanning electron microscopy (SEM), X-ray diffraction (XRD) and Fourier Transform Infrared Spectroscopy (FTIR) that adding Am-CNCs in PVA membranes shows an increment in the CO2 removal and effectively upgrades the biogas. The effect of change in concentration of Am-CNC and feed pressure was investigated. The results showed that with increasing Am-CNC concentration up to 1.5 wt%, the thickness of the selective membrane layer increased from 0.95 to 1.9 μm with a decrease in the moisture uptake from 85.04 to 58.84%. However, the best CO2 permeance and selectivity were achieved at 0.306 m3/m2.bar.h (STP) and 33.55, respectively. Furthermore, there was a more than two-fold decrease in CO2 permeance and a 27% decrease in the CO2/CH4 selectivity when the feed pressure increased from 5 to 15 bar. It was revealed that PVA/Am-CNC membrane is high performing for the biogas upgradation.
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Affiliation(s)
- Saleem Ahmad
- Department of Chemical Engineering, School of Chemical and Materials Engineering, National University of Sciences and Technology, Islamabad, 44000, Pakistan
| | - Zaib Jahan
- Department of Chemical Engineering, School of Chemical and Materials Engineering, National University of Sciences and Technology, Islamabad, 44000, Pakistan.
| | - Farooq Sher
- Department of Engineering, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, United Kingdom.
| | - Muhammad Bilal Khan Niazi
- Department of Chemical Engineering, School of Chemical and Materials Engineering, National University of Sciences and Technology, Islamabad, 44000, Pakistan
| | - Tayyaba Noor
- Department of Chemical Engineering, School of Chemical and Materials Engineering, National University of Sciences and Technology, Islamabad, 44000, Pakistan
| | - Honghao Hou
- School of Basic Medical Science, Southern Medical University, Guangdong, Guangzhou, 510515, China
| | - Ofaira Azhar
- Department of Chemical Engineering, School of Chemical and Materials Engineering, National University of Sciences and Technology, Islamabad, 44000, Pakistan; International Society of Engineering Science and Technology, Nottingham, United Kingdom
| | - Emina Karahmet Sher
- Department of Biosciences, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, United Kingdom
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13
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Bian Y, Zhang C, Wang H, Cao Q. Degradable Nanofiber for Eco-friendly Air Filtration: Progress and Perspectives. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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14
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Electrospinning of Natural Biopolymers for Innovative Food Applications: A Review. FOOD BIOPROCESS TECH 2022. [DOI: 10.1007/s11947-022-02896-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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15
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Hao D, Fu B, Zhou J, Liu J. Efficient particulate matter removal by metal-organic frameworks encapsulated in cellulose/chitosan foams. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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16
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Deng Y, Lu T, Cui J, Ma W, Qu Q, Zhang X, Zhang Y, Zhu M, Xiong R, Huang C. Morphology engineering processed nanofibrous membranes with secondary structure for high-performance air filtration. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121093] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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17
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Sohrabi M, Abbasi M, Sadighzadeh A. Fabrication and evaluation of electrospun polyacrylonitrile/silver nanofiber membranes for air filtration and antibacterial activity. Polym Bull (Berl) 2022; 80:5481-5499. [PMID: 35789591 PMCID: PMC9244039 DOI: 10.1007/s00289-022-04311-1] [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: 02/03/2022] [Revised: 05/23/2022] [Accepted: 05/30/2022] [Indexed: 11/27/2022]
Abstract
Particulate matter and airborne microorganisms are two of the most severe indoor air problems due to their significant risks to human health. Comprehensive research on air filtration with good filtration performance for fine particles and antibacterial function is essential. In this study, after some experimentations and optimization of conditions, polyacrylonitrile (PAN) 10–1% silver nanoparticles (AgNPs) membranes with suitable morphology and uniform diameter distribution are fabricated by an electrospinning method. These electrospun mats exhibited antibacterial activity toward Staphylococcus aureus (Gram-positive bacteria) and Escherichia coli (Gram-negative bacteria). With its small pore size, high porosity, the high specific surface area of 42 m2/g, and robust mechanical strength of 7.14 MPa properties, the resultant PAN10%-1%Ag membranes exhibit high filtration efficiency of 99.27%, the low pressure drop of 33 Pa, and higher quality factor compared to the two standard commercial masks including, the three-ply surgical mask and the respirator face mask. After 24 h of the filtration process in a simulated living environment, the obtained air filter still displayed a high filtration efficiency and a less pressure drop variation. In addition, the R2 value was 0.99, which indicates that the calculation results are in good agreement with the measured results. The fabrication of PAN-Ag membranes will have broad applications, including face masks, indoor air filtration and clean room.
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Affiliation(s)
- Majid Sohrabi
- Department of Textile Engineering, Faculty of Engineering, University of Guilan, Rasht, Iran
| | - Marjan Abbasi
- Department of Textile Engineering, Faculty of Engineering, University of Guilan, Rasht, Iran
| | - Asghar Sadighzadeh
- Plasma Physics and Nuclear Fusion Research School, Nuclear Science and Technology Research Institute, AEOI, Tehran, Iran
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18
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Wang Q, Liu S, Liu J, Sun J, Zhang Z, Zhu Q. Sustainable cellulose nanomaterials for environmental remediation - Achieving clean air, water, and energy: A review. Carbohydr Polym 2022; 285:119251. [DOI: 10.1016/j.carbpol.2022.119251] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 02/09/2022] [Accepted: 02/09/2022] [Indexed: 01/09/2023]
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19
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Advances in particulate matter filtration: Materials, performance, and application. GREEN ENERGY & ENVIRONMENT 2022. [PMCID: PMC10119549 DOI: 10.1016/j.gee.2022.03.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Air-borne pollutants in particulate matter (PM) form, produced either physically during industrial processes or certain biological routes, have posed a great threat to human health. Particularly during the current COVID-19 pandemic, effective filtration of the virus is an urgent matter worldwide. In this review, we first introduce some fundamentals about PM, including its source and classification, filtration mechanisms, and evaluation parameters. Advanced filtration materials and their functions are then summarized, among which polymers and MOFs are discussed in detail together with their antibacterial performance. The discussion on the application is divided into end-of-pipe treatment and source control. Finally, we conclude this review with our prospective view on future research in this area.
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20
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Wang Q, Wang D, Cheng W, Huang J, Cao M, Niu Z, Zhao Y, Yue Y, Han G. Spider-web-inspired membrane reinforced with sulfhydryl-functionalized cellulose nanocrystals for oil/water separation. Carbohydr Polym 2022; 282:119049. [DOI: 10.1016/j.carbpol.2021.119049] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 12/22/2021] [Accepted: 12/23/2021] [Indexed: 12/30/2022]
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21
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Zhou Y, Liu Y, Zhang M, Feng Z, Yu DG, Wang K. Electrospun Nanofiber Membranes for Air Filtration: A Review. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:1077. [PMID: 35407195 PMCID: PMC9000692 DOI: 10.3390/nano12071077] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 03/17/2022] [Accepted: 03/22/2022] [Indexed: 12/12/2022]
Abstract
Nanomaterials for air filtration have been studied by researchers for decades. Owing to the advantages of high porosity, small pore size, and good connectivity, nanofiber membranes prepared by electrospinning technology have been considered as an outstanding air-filter candidate. To satisfy the requirements of material functionalization, electrospinning can provide a simple and efficient one-step process to fabricate the complex structures of functional nanofibers such as core-sheath structures, Janus structures, and other multilayered structures. Additionally, as a nanoparticle carrier, electrospun nanofibers can easily achieve antibacterial properties, flame-retardant properties, and the adsorption properties of volatile gases, etc. These simple and effective approaches have benefited from the significate development of electrospun nanofibers for air-filtration applications. In this review, the research progress on electrospun nanofibers as air filters in recent years is summarized. The fabrication methods, filtration performances, advantages, and disadvantages of single-polymer nanofibers, multipolymer composite nanofibers, and nanoparticle-doped hybrid nanofibers are investigated. Finally, the basic principles of air filtration are concluded upon and prospects for the application of complex-structured nanofibers in the field of air filtration are proposed.
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Affiliation(s)
- Yangjian Zhou
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China; (Y.Z.); (Y.L.); (M.Z.); (Z.F.)
| | - Yanan Liu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China; (Y.Z.); (Y.L.); (M.Z.); (Z.F.)
| | - Mingxin Zhang
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China; (Y.Z.); (Y.L.); (M.Z.); (Z.F.)
| | - Zhangbin Feng
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China; (Y.Z.); (Y.L.); (M.Z.); (Z.F.)
| | - Deng-Guang Yu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China; (Y.Z.); (Y.L.); (M.Z.); (Z.F.)
- Shanghai Engineering Technology Research Center for High-Performance Medical Device Materials, Shanghai 200093, China
| | - Ke Wang
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China; (Y.Z.); (Y.L.); (M.Z.); (Z.F.)
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22
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He S, Jiang L, Liu J, Zhang J, Shao W. Electrospun PVA/gelatin based nanofiber membranes with synergistic antibacterial performance. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.128196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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23
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Bansal P, Batra R, Yadav R, Purwar R. Electrospun polyacrylonitrile nanofibrous membranes supported with montmorillonite for efficient
PM2
.5 filtration and adsorption of Cu (
II
) ions. J Appl Polym Sci 2022. [DOI: 10.1002/app.51582] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Priya Bansal
- Discipline of Polymer Science and Chemical Technology, Department of Applied Chemistry Delhi Technological University Delhi India
| | - Radhika Batra
- Discipline of Polymer Science and Chemical Technology, Department of Applied Chemistry Delhi Technological University Delhi India
| | - Reetu Yadav
- Discipline of Polymer Science and Chemical Technology, Department of Applied Chemistry Delhi Technological University Delhi India
| | - Roli Purwar
- Discipline of Polymer Science and Chemical Technology, Department of Applied Chemistry Delhi Technological University Delhi India
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24
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Hu S, Tian H, Zhang S, Wang D, Gong G, Yue W, Liu K, Hong S, Wang R, Yuan Q, Lu Y, Wang D, Zhang L, Chen J. Fabrication of a High-Performance and Reusable Planar Face Mask in Response to the COVID-19 Pandemic. ENGINEERING (BEIJING, CHINA) 2022; 9:101-110. [PMID: 34745685 PMCID: PMC8563499 DOI: 10.1016/j.eng.2021.07.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 07/21/2021] [Accepted: 07/21/2021] [Indexed: 05/27/2023]
Abstract
The coronavirus disease 2019 (COVID-19) pandemic has caused a surge in demand for face masks, with the massive consumption of masks leading to an increase in resource-related and environmental concerns. In this work, we fabricated meltblown polypropylene (mb-PP)-based high-performance planar face masks and investigated the effects of six commonly used disinfection methods and various mask-wearing periods on the reusability of these masks. The results show that, after three cycles of treatment using hot water at 70 °C for 30 min, which is one of the most scalable, user-friendly methods for viral disinfection, the particle filtration efficiency (PFE) of the mask remained almost unchanged. After mask wearing for 24 h and subsequent disinfection using the same treatment procedures, the PFE decreased to 91.3%; the average number of bacterial and fungal colonies was assessed to be 9.2 and 51.6 colony-forming units per gram (CFU∙g- 1), respectively; and coliform and pyogenic bacteria were not detected. Both the PFE and the microbial indicators are well above the standard for reusable masks after disinfection. Schlieren photography was then used to assess the capabilities of used and disinfected masks during use; it showed that the masks exhibit a high performance in suppressing the spread of breathed air.
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Affiliation(s)
- Shui Hu
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Hongchi Tian
- Dawn Polymer (Beijing) Technology Co., Ltd., Beijing 101599, China
| | - Shijia Zhang
- Dawn Polymer (Beijing) Technology Co., Ltd., Beijing 101599, China
| | - Dan Wang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Guozhuo Gong
- Beijing Municipal Institute of Labor Protection, Beijing 100054, China
| | - Weihua Yue
- Beijing Institute of Medical Device Testing, Beijing 101111, China
| | - Keyang Liu
- Beijing Institute of Medical Device Testing, Beijing 101111, China
| | - Song Hong
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Rui Wang
- School of Materials Design and Engineering, Beijing Institute of Fashion Technology, Beijing 100029, China
| | - Qingqing Yuan
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yonglai Lu
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Dong Wang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Liqun Zhang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jianfeng Chen
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
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25
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Geng Q, Pu Y, Li Y, Yang X, Wu H, Dong S, Yuan D, Ning X. Multi-Component Nanofiber Composite Membrane Enabled High PM 0.3 Removal Efficiency and Oil/Water Separation Performance in Complex Environment. JOURNAL OF HAZARDOUS MATERIALS 2022; 422:126835. [PMID: 34391969 DOI: 10.1016/j.jhazmat.2021.126835] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/20/2021] [Accepted: 08/04/2021] [Indexed: 06/13/2023]
Abstract
Currently, industrial waste gas and oily wastewater are usually at high temperature and contain corrosive components (e.g., acid, alkali, oxidant, or high salt, etc.), presenting great challenges on filtration/separation materials. Here, a multi-purpose Poly(m-phenylene isophthalamide)/polyacrylonitrile/silica (PMIA/PAN/SiO2) nanofiber composite membrane with a high yield was prepared simply via electrospinning to satisfy the demands of air filtration and oil/water separation in complex environments. Under the synergy of PMIA, PAN and SiO2, the composite membrane possesses high PM0.3 removal capacity of 99.69%, robust purification ability against real smoke PM2.5, effective oil/water separation performance of > 99.6%, superior high temperature stability (about 250 °C) and excellent chemical resistance, showing the potential application in filtration/separation process under complex conditions. Moreover, the influence mechanism of SiO2 NPs on mechanical properties and filtration performance was systematically investigated through experiments and simulations, paving the way for future intensive research. This study provides an option for the facile and effective preparation of high-performance filtration/separation membranes applied in the field of dust filtration and oily wastewater separation, even in harsh environments.
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Affiliation(s)
- Qian Geng
- Industrial Research Institute of Nonwovens & Technical Textiles, Shandong Center for Engineered Nonwovens, College of Textiles & Clothing, Qingdao University, Qingdao 266071, Shandong, PR China
| | - Yi Pu
- Industrial Research Institute of Nonwovens & Technical Textiles, Shandong Center for Engineered Nonwovens, College of Textiles & Clothing, Qingdao University, Qingdao 266071, Shandong, PR China
| | - Yajian Li
- Industrial Research Institute of Nonwovens & Technical Textiles, Shandong Center for Engineered Nonwovens, College of Textiles & Clothing, Qingdao University, Qingdao 266071, Shandong, PR China
| | - Xue Yang
- Industrial Research Institute of Nonwovens & Technical Textiles, Shandong Center for Engineered Nonwovens, College of Textiles & Clothing, Qingdao University, Qingdao 266071, Shandong, PR China
| | - Huizhi Wu
- Industrial Research Institute of Nonwovens & Technical Textiles, Shandong Center for Engineered Nonwovens, College of Textiles & Clothing, Qingdao University, Qingdao 266071, Shandong, PR China
| | - Senjie Dong
- Industrial Research Institute of Nonwovens & Technical Textiles, Shandong Center for Engineered Nonwovens, College of Textiles & Clothing, Qingdao University, Qingdao 266071, Shandong, PR China.
| | - Ding Yuan
- Industrial Research Institute of Nonwovens & Technical Textiles, Shandong Center for Engineered Nonwovens, College of Textiles & Clothing, Qingdao University, Qingdao 266071, Shandong, PR China.
| | - Xin Ning
- Industrial Research Institute of Nonwovens & Technical Textiles, Shandong Center for Engineered Nonwovens, College of Textiles & Clothing, Qingdao University, Qingdao 266071, Shandong, PR China
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26
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Stanislas TT, Bilba K, de Oliveira Santos RP, Onésippe-Potiron C, Savastano Junior H, Arsène MA. Nanocellulose-based membrane as a potential material for high performance biodegradable aerosol respirators for SARS-CoV-2 prevention: a review. CELLULOSE (LONDON, ENGLAND) 2022; 29:8001-8024. [PMID: 35990792 PMCID: PMC9383689 DOI: 10.1007/s10570-022-04792-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 08/02/2022] [Indexed: 05/14/2023]
Abstract
The controversy surrounding the transmission of COVID-19 in 2020 has revealed the need to better understand the airborne transmission route of respiratory viruses to establish appropriate strategies to limit their transmission. The effectiveness in protecting against COVID-19 has led to a high demand for face masks. This includes the single-use of non-degradable masks and Filtering Facepiece Respirators by a large proportion of the public, leading to environmental concerns related to waste management. Thus, nanocellulose-based membranes are a promising environmental solution for aerosol filtration due to their biodegradability, renewability, biocompatibility, high specific surface area, non-toxicity, ease of functionalization and worldwide availability. Although the technology for producing high-performance aerosol filter membranes from cellulose-based materials is still in its initial stage, several promising results show the prospects of the use of this kind of materials. This review focuses on the overview of nanocellulose-based filter media, including its processing, desirable characteristics and recent developments regarding filtration, functionalization, biodegradability, and mechanical behavior. The porosity control, surface wettability and surface functional groups resulting from the silylation treatment to improve the filtration capacity of the nanocellulose-based membrane is discussed. Future research trends in this area are planned to develop the air filter media by reinforcing the filter membrane structure of CNF with CNCs. In addition, the integration of sol-gel technology into the production of an air filter can tailor the pore size of the membrane for a viable physical screening solution in future studies.
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Affiliation(s)
- Tido Tiwa Stanislas
- Laboratoire COVACHIM-M2E EA3592, UFR SEN, Université des Antilles, Campus de Fouillole, BP 250, 97157 Pointe-à-Pitre, Guadeloupe France
- Research Nucleus on Materials for Biosystems, Faculty of Animal Science and Food Engineering, University of São Paulo, Duque de Caxias Norte, 225, Pirassununga, SP 13635-900 Brazil
- Mechanic and Adapted Materials Laboratory, ENSET, University of Douala, P.O. BOX 1872, Douala, Cameroon
| | - Ketty Bilba
- Laboratoire COVACHIM-M2E EA3592, UFR SEN, Université des Antilles, Campus de Fouillole, BP 250, 97157 Pointe-à-Pitre, Guadeloupe France
| | - Rachel Passos de Oliveira Santos
- Research Nucleus on Materials for Biosystems, Faculty of Animal Science and Food Engineering, University of São Paulo, Duque de Caxias Norte, 225, Pirassununga, SP 13635-900 Brazil
| | - Cristel Onésippe-Potiron
- Laboratoire COVACHIM-M2E EA3592, UFR SEN, Université des Antilles, Campus de Fouillole, BP 250, 97157 Pointe-à-Pitre, Guadeloupe France
| | - Holmer Savastano Junior
- Research Nucleus on Materials for Biosystems, Faculty of Animal Science and Food Engineering, University of São Paulo, Duque de Caxias Norte, 225, Pirassununga, SP 13635-900 Brazil
| | - Marie-Ange Arsène
- Laboratoire COVACHIM-M2E EA3592, UFR SEN, Université des Antilles, Campus de Fouillole, BP 250, 97157 Pointe-à-Pitre, Guadeloupe France
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27
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Xiong J, Li A, Liu Y, Wang L, Qin X, Yu J. Multi-Scale Nanoarchitectured Fibrous Networks for High-Performance, Self-Sterilization, and Recyclable Face Masks. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2105570. [PMID: 34846802 DOI: 10.1002/smll.202105570] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 10/06/2021] [Indexed: 05/20/2023]
Abstract
Airborne particulate matter (PM) pollutants, especially with nanoscale size, have caused serious public health issues. The global demand for high-performance and recyclable face masks is increasing dramatically, especially during the COVID-19 pandemic. However, present masks suffer from low-efficiency interception of PM0.3 /pathogen, limited air permeability, and incapacity to reuse and recycle. Here, multi-scale nanoarchitectured nanofiber/carbon nanotube (NF/CNT) networks are constructed by a needleless-electrospinning/spraying-netting strategy, enabling well-dispersed CNT networks (diameter ≈ 25 nm) welded on charged nanofibrous scaffolds (diameter > 100 nm) layer by layer. The optimized NF/CNT networks possess a fluffy structure with narrow-distribution small pores (size ≈ 400 nm), "free molecular flow" behavior, and electrostatic adsorption property, thereby exhibiting high filtration efficiency (>99.994% PM0.3 removal) and low resistance (<0.05% atmosphere pressure). Furthermore, they demonstrate reliable and ultra-fast photothermal-driven self-sterilization (>99.986% in 5 min) under 1 sun and electrothermal-driven self-sterilization (>99.9999% in 2 min) in sunless scenes owing to their unique nanoarchitecture. Most importantly, the abandoned NF/CNT filters can be fully recycled as high-performance solar vapor generators to desalinate seawater (3.56 L m-2 d-1 ). This work offers a fascinating solution to reduce disease transmission, resource consumption, and environmental burdens.
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Affiliation(s)
- Jian Xiong
- Key Laboratory of Textile Science and Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, China
| | - Ailin Li
- Key Laboratory of Textile Science and Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, China
| | - Ye Liu
- Key Laboratory of Textile Science and Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, China
| | - Liming Wang
- Key Laboratory of Textile Science and Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, China
| | - Xiaohong Qin
- Key Laboratory of Textile Science and Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, China
| | - Jianyong Yu
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai, 201620, China
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28
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Huang Z, Dang C, Sun Z, Qi H. High-Efficiency Air Filter Media with a Three-Dimensional Network Composed of Core-Shell Zeolitic Imidazolate Framework-8@Tunicate Nanocellulose for PM0.3 Removal. ACS APPLIED MATERIALS & INTERFACES 2021; 13:57921-57929. [PMID: 34797631 DOI: 10.1021/acsami.1c17052] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Particulate matter (PM) in air has seriously endangered human health. Especially, PM0.3 can easily enter the lungs and blood through breathing. Herein, an air filter with a three-dimensional (3D) network consisting of core-shell structured fibers was designed by in situ growth of zeolitic imidazolate framework-8 on tunicate nanocellulose/glass fiber composite filter media (ZIF-8@TNC/GF). The filtration performance of the obtained ZIF-8@TNC/GF membranes against sodium chloride particles with the MPPS (most penetrating particle size) was investigated. The air filter media at the optimal ratio of ZIF-8 exhibited an ultrahigh efficiency of 99.998% and a quality factor of 0.0308 Pa-1 for PM0.3. Further characterizations showed that the ZIF-8@TNC/GF air filter had a hierarchical and rich pore structure, showing a large specific surface area (50.3 m2 g-1). More significantly, compared with the TNC/GF prepared by the dipping method, TNCs changed from the original two-dimensional (2D) nonuniform network to a uniform 3D network after the ZIF-8 was introduced. Moreover, the ZIF-8@TNC fibers with a core-shell structure inhibited the aggregation of nanocellulose. This study will shed light on the fabrication of high-efficiency TNC composite air filter media with fluffy 3D networks.
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Affiliation(s)
- Zhongyuan Huang
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, GuangZhou 510641, China
| | - Chao Dang
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, GuangZhou 510641, China
| | - Zhaoxia Sun
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, GuangZhou 510641, China
| | - Haisong Qi
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, GuangZhou 510641, China
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29
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Zhang Q, Young TM, Harper DP, Liles T, Wang S. Optimization of electrospun poly(vinyl alcohol)/cellulose nanocrystals composite nanofibrous filter fabrication using response surface methodology. CARBOHYDRATE POLYMER TECHNOLOGIES AND APPLICATIONS 2021. [DOI: 10.1016/j.carpta.2021.100120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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30
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Zhang Y, Zhang C, Wang Y. Recent progress in cellulose-based electrospun nanofibers as multifunctional materials. NANOSCALE ADVANCES 2021; 3:6040-6047. [PMID: 36133945 PMCID: PMC9417631 DOI: 10.1039/d1na00508a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 09/06/2021] [Indexed: 05/13/2023]
Abstract
Cellulose, the most abundant natural polymer, has good biocompatibility, biodegradability, and non-toxicity, which make it and its derivatives promising candidates for the fabrication of multifunctional materials, while maintaining sustainability and environmental friendliness. The combination of electrospinning technology and cellulose (and its derivatives) provides a feasible approach to produce nanostructured porous materials with promising functionalities, flexibility, renewability and biodegradability. At the same time, it enables value-added applications of cellulose and its derivatives that are derived from nature or even biomass waste. This review summarizes and discusses the latest progress in cellulose-based electrospun nanofibers, including their construction methods and conditions, various available raw materials, and applications in multiple areas (water treatment, biomaterials, sensors, electro-conductive materials, active packaging, and so on), which are followed by the conclusion and prospects associated with future opportunities and challenges in this active research area.
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Affiliation(s)
- Yirong Zhang
- Department of Food Science and Agricultural Chemistry, McGill University 21111 Lakeshore Ste Anne de Bellevue Quebec H9X 3V9 Canada
| | - Cunzhi Zhang
- Department of Food Science and Agricultural Chemistry, McGill University 21111 Lakeshore Ste Anne de Bellevue Quebec H9X 3V9 Canada
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology Guangzhou 510640 China
| | - Yixiang Wang
- Department of Food Science and Agricultural Chemistry, McGill University 21111 Lakeshore Ste Anne de Bellevue Quebec H9X 3V9 Canada
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31
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Fu X, Liu J, Ding C, Lin S, Zhong WH. Building bimodal structures by a wettability difference-driven strategy for high-performance protein air-filters. JOURNAL OF HAZARDOUS MATERIALS 2021; 415:125742. [PMID: 34088201 DOI: 10.1016/j.jhazmat.2021.125742] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 03/18/2021] [Accepted: 03/22/2021] [Indexed: 06/12/2023]
Abstract
Building bimodal structures for air-filters is promising to reduce the airflow resistance without sacrificing the filtration efficiency. To do so, multi-jet electrospinning is among the most broadly used methods, yet the interplay between single fibers in electrospinning, which is significant to their morphologies, is overlooked. In this study, we report a wettability difference-driven strategy to fabricate a bimodal protein fabric with superior filtration performance. We surprisingly find that only by co-spinning of two proteins, zein and gelatin, with different wettability between them, a drastic change of fiber diameters is spontaneously achieved. The generated protein-blend fabric possesses bimodally distributed diameters of 270 nm for gelatin fibers and of 1.12 µm for zein fibers; both pure protein fabrics via single-jet electrospinning have diameters unimodally distributed in the range of 500-700 nm. The bimodal protein-blend fabric delivers exceptional removal efficiencies of 99.67% for PM2.5 and 98.80% for PM0.3, yielding an ultra-low airflow resistance of 38 Pa. The PM2.5 removal efficiency retains to be 96.04% after filtering 1000 L polluted air, indicating a good long-term performance. This study brings about a new insight into fabrication of bimodal structures using multi-jet electrospinning method and promotes the development of natural products for broad applications.
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Affiliation(s)
- Xuewei Fu
- School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164, USA.
| | - Juejing Liu
- School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164, USA
| | - Chenfeng Ding
- School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164, USA; School of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Shengnan Lin
- School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164, USA
| | - Wei-Hong Zhong
- School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164, USA.
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Opálková Šišková A, Mosnáčková K, Hrůza J, Frajová J, Opálek A, Bučková M, Kozics K, Peer P, Eckstein Andicsová A. Electrospun Poly(ethylene Terephthalate)/Silk Fibroin Composite for Filtration Application. Polymers (Basel) 2021; 13:2499. [PMID: 34372102 PMCID: PMC8348435 DOI: 10.3390/polym13152499] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/26/2021] [Accepted: 07/27/2021] [Indexed: 12/24/2022] Open
Abstract
In this study, fibrous membranes from recycled-poly(ethylene terephthalate)/silk fibroin (r-PSF) were prepared by electrospinning for filtration applications. The effect of silk fibroin on morphology, fibers diameters, pores size, wettability, chemical structure, thermo-mechanical properties, filtration efficiency, filtration performance, and comfort properties such as air and water vapor permeability was investigated. The filtration efficiency (FE) and quality factor (Qf), which represents filtration performance, were calculated from penetration through the membranes using aerosol particles ranging from 120 nm to 2.46 μm. The fiber diameter influenced both FE and Qf. However, the basis weight of the membranes has an effect, especially on the FE. The prepared membranes were classified according to EN149, and the most effective was assigned to the class FFP1 and according to EN1822 to the class H13. The impact of silk fibroin on the air permeability was assessed. Furthermore, the antibacterial activity against bacteria S. aureus and E. coli and biocompatibility were evaluated. It is discussed that antibacterial activity depends not only on the type of used materials but also on fibrous membranes' surface wettability. In vitro biocompatibility of the selected samples was studied, and it was proven to be of the non-cytotoxic effect of the keratinocytes (HaCaT) after 48 h of incubation.
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Affiliation(s)
- Alena Opálková Šišková
- Polymer Institute of Slovak Academy of Sciences, Dúbravská cesta 9, 845 41 Bratislava, Slovakia;
- Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, Dúbravská cesta 9, 845 13 Bratislava, Slovakia;
| | - Katarína Mosnáčková
- Polymer Institute of Slovak Academy of Sciences, Dúbravská cesta 9, 845 41 Bratislava, Slovakia;
| | - Jakub Hrůza
- Advanced Technologies and Innovation, Institute for Nanomaterials, Technical University in Liberec, Studentská 1402/2, 461 17 Liberec, Czech Republic;
| | - Jaroslava Frajová
- Faculty of Arts and Architecture, Technical University in Liberec, Studentská 1402/2, 460 01 Liberec, Czech Republic;
| | - Andrej Opálek
- Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, Dúbravská cesta 9, 845 13 Bratislava, Slovakia;
| | - Mária Bučková
- Institute of Molecular Biology, Slovak Academy of Sciences, Dúbravská cesta 9, 845 51 Bratislava, Slovakia;
| | - Katarína Kozics
- Cancer Research Institute, Biomedical Research Center, Slovak Academy of Sciences, Dúbravská cesta 9, 845 05 Bratislava, Slovakia;
| | - Petra Peer
- Institute of Hydrodynamics of the Czech Academy of Sciences, v. v. i., Pod Patankou 5, 166 12 Prague 6, Czech Republic;
| | - Anita Eckstein Andicsová
- Polymer Institute of Slovak Academy of Sciences, Dúbravská cesta 9, 845 41 Bratislava, Slovakia;
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Shanmugam V, Babu K, Garrison TF, Capezza AJ, Olsson RT, Ramakrishna S, Hedenqvist MS, Singha S, Bartoli M, Giorcelli M, Sas G, Försth M, Das O, Restás Á, Berto F. Potential natural polymer-based nanofibres for the development of facemasks in countering viral outbreaks. J Appl Polym Sci 2021; 138:50658. [PMID: 34149062 PMCID: PMC8206777 DOI: 10.1002/app.50658] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Revised: 02/16/2021] [Accepted: 02/17/2021] [Indexed: 12/13/2022]
Abstract
The global coronavirus disease 2019 (COVID-19) pandemic has rapidly increased the demand for facemasks as a measure to reduce the rapid spread of the pathogen. Throughout the pandemic, some countries such as Italy had a monthly demand of ca. 90 million facemasks. Domestic mask manufacturers are capable of manufacturing 8 million masks each week, although the demand was 40 million per week during March 2020. This dramatic increase has contributed to a spike in the generation of facemask waste. Facemasks are often manufactured with synthetic materials that are non-biodegradable, and their increased usage and improper disposal are raising environmental concerns. Consequently, there is a strong interest for developing biodegradable facemasks made with for example, renewable nanofibres. A range of natural polymer-based nanofibres has been studied for their potential to be used in air filter applications. This review article examines potential natural polymer-based nanofibres along with their filtration and antimicrobial capabilities for developing biodegradable facemask that will promote a cleaner production.
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Affiliation(s)
- Vigneshwaran Shanmugam
- Faculty of Mechanical EngineeringSaveetha School of Engineering, Saveetha Institute of Medical and Technical SciencesChennaiTamil NaduIndia
| | - Karthik Babu
- Department of Mechanical EngineeringCenturion University of Technology and ManagementSitapurOdishaIndia
| | - Thomas F. Garrison
- Chemistry DepartmentKing Fahd University of Petroleum & MineralsDhahranSaudi Arabia
| | - Antonio J. Capezza
- Department of Fibre and Polymer Technology, Polymeric Materials DivisionSchool of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of TechnologySweden
- Department of Plant Breeding, Faculty of Landscape ArchitectureHorticulture and Crop Production Science, SLU Swedish University of Agricultural SciencesAlnarpSweden
| | - Richard T. Olsson
- Department of Fibre and Polymer Technology, Polymeric Materials DivisionSchool of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of TechnologySweden
| | - Seeram Ramakrishna
- Department of Mechanical Engineering, Faculty of EngineeringCenter for Nanofibres and NanotechnologySingaporeSingapore
| | - Mikael S. Hedenqvist
- Department of Fibre and Polymer Technology, Polymeric Materials DivisionSchool of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of TechnologySweden
| | - Shuvra Singha
- Department of Fibre and Polymer Technology, Polymeric Materials DivisionSchool of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of TechnologySweden
| | - Mattia Bartoli
- Department of applied science and technology (DISAT)Politecnico di TorinoTorinoItaly
| | - Mauro Giorcelli
- Department of applied science and technology (DISAT)Politecnico di TorinoTorinoItaly
- Department of applied science and technology (DISAT)Istituto Italiano di Tecnologia (IIT)TorinoItaly
| | - Gabriel Sas
- Structural and Fire Engineering Division, Department of Civil, Environmental and Natural Resources EngineeringLuleå University of TechnologyLuleåSweden
| | - Michael Försth
- Structural and Fire Engineering Division, Department of Civil, Environmental and Natural Resources EngineeringLuleå University of TechnologyLuleåSweden
| | - Oisik Das
- Structural and Fire Engineering Division, Department of Civil, Environmental and Natural Resources EngineeringLuleå University of TechnologyLuleåSweden
| | - Ágoston Restás
- Department of Fire Protection and Rescue ControlNational University of Public ServiceBudapestHungary
| | - Filippo Berto
- Department of Mechanical EngineeringNorwegian University of Science and TechnologyTrondheimNorway
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34
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Li H, Chen X, Lu W, Wang J, Xu Y, Guo Y. Application of Electrospinning in Antibacterial Field. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1822. [PMID: 34361208 PMCID: PMC8308247 DOI: 10.3390/nano11071822] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/07/2021] [Accepted: 06/08/2021] [Indexed: 02/06/2023]
Abstract
In recent years, electrospun nanofibers have attracted extensive attention due to their large specific surface area, high porosity, and controllable shape. Among the many applications of electrospinning, electrospun nanofibers used in fields such as tissue engineering, food packaging, and air purification often require some antibacterial properties. This paper expounds the development potential of electrospinning in the antibacterial field from four aspects: fiber morphology, antibacterial materials, antibacterial mechanism, and application fields. The effects of fiber morphology and antibacterial materials on the antibacterial activity and characteristics are first presented, then followed by a discussion of the antibacterial mechanisms and influencing factors of these materials. Typical application examples of antibacterial nanofibers are presented, which show the good prospects of electrospinning in the antibacterial field.
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Affiliation(s)
- Honghai Li
- Key Laboratory of Photochemical Conversion and Optoelectronic Material, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (H.L.); (X.C.)
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xin Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Material, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (H.L.); (X.C.)
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Weipeng Lu
- Key Laboratory of Photochemical Conversion and Optoelectronic Material, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (H.L.); (X.C.)
| | - Jie Wang
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yisheng Xu
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yanchuan Guo
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
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35
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Liu T, Cai C, Ma R, Deng Y, Tu L, Fan Y, Lu D. Super-hydrophobic Cellulose Nanofiber Air Filter with Highly Efficient Filtration and Humidity Resistance. ACS APPLIED MATERIALS & INTERFACES 2021; 13:24032-24041. [PMID: 33978395 DOI: 10.1021/acsami.1c04258] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
High-air humidity, especially condensation into droplets under the influence of temperature, can pose a serious threat to air purification filters. This report introduces the use of methyltrimethoxysilane (MTMS) for the silanization hydrophobic modification of cellulose nanofibers (CNFs) and obtains an air filter with super-hydrophobicity (CA = 152.4°) and high-efficiency filtration of particulate matter (PM) through the freeze-drying technology. The antihumidity performance of CNFs filters that undergo hydrophobic modification in high-humidity air is improved. Especially in the case of high-humidity air forming condensed water droplets, the increase in the rate of filtration resistance of the hydrophobically modified CNFs filter is much lower than that of the unmodified filter. In addition, the water-vapor-transmission rate of the hydrophobically modified filter is improved. More importantly, adding MTMS can regulate the porous structure of CNFs filters and improve the filtration performance. The specific surface area and the porosity of the filter are 26.54 m2/g and 99.21%, respectively, and the filtering effects of PM1.0 and PM2.5 reach 99.31 and 99.75%, respectively, while a low-filtration resistance (42 Pa) and a quality factor of up to 0.122 Pa-1 are achieved. This work has improved the application potential of high-performance air-purification devices to remove particulate pollution and may provide useful insights to design next-generation air filters suitable for application in high-air humidity.
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Affiliation(s)
- Tao Liu
- School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Chenchen Cai
- School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Ruijia Ma
- School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Yongfei Deng
- School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Lingyun Tu
- School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Yifeng Fan
- School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Dengjun Lu
- School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
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36
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Bai H, Qian X, Fan J, Shi Y, Duo Y, Guo C. Probing the Effective Diffusion Coefficient and Filtration Performance of Micro/Nanofibrous Composite Layered Filters. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.0c06344] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- He Bai
- College of Physics and Materials Science, Tianjin Normal University, Tianjin 300387, China
- School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Xiaoming Qian
- School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Jintu Fan
- School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
- Institute of Textiles and Clothing, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 999077, China
| | - Yunlong Shi
- School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Yongchao Duo
- School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Changsheng Guo
- School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
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37
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Orejuela-Escobar LM, Landázuri AC, Goodell B. Second generation biorefining in Ecuador: Circular bioeconomy, zero waste technology, environment and sustainable development: The nexus. JOURNAL OF BIORESOURCES AND BIOPRODUCTS 2021. [DOI: 10.1016/j.jobab.2021.01.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
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38
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Xiong Z, Lin J, Li X, Bian F, Wang J. Hierarchically Structured Nanocellulose-Implanted Air Filters for High-Efficiency Particulate Matter Removal. ACS APPLIED MATERIALS & INTERFACES 2021; 13:12408-12416. [PMID: 33682405 DOI: 10.1021/acsami.1c01286] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Fine particulate matter (PM) air pollution has increasingly become a global problem; thus, high-performance air filtration materials are in great demand. Herein, we first prepared a biodegradable hierarchically structured nanocellulose-implanted air filter with a high filtration capacity using a freeze-drying technique. In this hierarchically structured air filter, porous structures of corrugated paper and cellulose nanofibrils (CNFs) were used as a frame and functional fillers, respectively. The self-assembled structure of the CNF fillers could be controlled by changing the freezing temperature, CNF sizes, concentrations, and base weights. Only the CNFs with a smaller size and concentration of 0.05 wt % were able to self-assemble to well-dispersed fibril networks. With constant optimization of conditions, when the base weight went up to only 0.25 g/m2, the coverage of the corrugated paper fibers with CNF networks became perfect, and a high efficiency of 94.6% for PM0.3 removal was achieved, while maintaining a relatively low pressure drop of 174.2 Pa. All of the raw materials we used are biodegradable, nonpetroleum-based materials, contributing to sustainable development. We believe that such excellent biodegradable high-performance cellulose-based air filtration materials will provide a new direction for the application of nanocellulose in air filtration.
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Affiliation(s)
- Zhenjun Xiong
- University of Chinese Academy of Sciences, Beijing 100049, China
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Jinyou Lin
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
| | - Xiuhong Li
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
| | - Fenggang Bian
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
| | - Jie Wang
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
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39
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Effective and facile fabrication of MOFs/cellulose composite paper for air hazards removal by virtue of in situ synthesis of MOFs/chitosan hydrogel. Carbohydr Polym 2020; 250:116955. [DOI: 10.1016/j.carbpol.2020.116955] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 08/07/2020] [Accepted: 08/13/2020] [Indexed: 12/23/2022]
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40
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Gong X, Kalantari M, Aslanzadeh S, Boluk Y. Interfacial interactions and electrospinning of cellulose nanocrystals dispersions in polymer solutions: a review. J DISPER SCI TECHNOL 2020. [DOI: 10.1080/01932691.2020.1847137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Xiaoyu Gong
- Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta, Canada
| | - Mahsa Kalantari
- Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta, Canada
| | - Samira Aslanzadeh
- Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta, Canada
| | - Yaman Boluk
- Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Alberta, Canada
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41
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Liu Q, Liu B, Liu Q, Guo S, Wu X. Probing mesoporous character, desulfurization capability and kinetic mechanism of synergistic stabilizing sorbent Ca xCu yMn zO i/MAS-9 in hot coal gas. J Colloid Interface Sci 2020; 587:743-754. [PMID: 33234310 DOI: 10.1016/j.jcis.2020.11.034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 11/01/2020] [Accepted: 11/08/2020] [Indexed: 11/28/2022]
Abstract
Developing structurally stable sorbents for high-temperature H2S direct removal is recognized as a valuable energy-saving strategy for efficient utilization of hot coal gas (HCG), which depends upon their mesoporous features and desulfurization capabilities. Herein, tailored hierarchical CaxCuyMnzOi/MAS-9 sorbents were fabricated via a facile sol-gel method using high-activity phase CaxCuyMnzOi anchored onto versatile mesoporous MAS-9. After O/S-exchange procedure, noteworthy straight channels of MAS-9 (SBET = 808 m2 g-1) provided enough available spaces for the storage of generative large MeSy nanoparticles, which was better than other conventional zeolites. The probing of variables (i.e. support type, active ingredient, loadings, and sulfidation temperature) on H2S removal revealed that 50%Ca3Cu10Mn87Oi/MAS-9 shared an excellent breakthrough sulfur capacity (171.57 mg g-1) at 800 °C, even it experienced six reusable cycles, due to synergistic stabilizing effect of Ca-Cu-Mn and high-temperature tolerance of SiOAl framework of MAS-9. Especially, CaO dopant endowed the sorbent with superficial alkalinity and high-temperature resistance. The brilliant desulfurization behavior was also described by the fast H2S diffusion or component deactivation vs. duration time on stream according to the followed kinetic investigation. Thus, the refined Ca3Cu10Mn87Oi/MAS-9 possesses the expected representative desulfurization nature and great potentiality for raw HCG in practical applications.
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Affiliation(s)
- Qiang Liu
- Department of Chemistry, School of Science, Tianjin University, and the National Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People's Republic of China; School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, People's Republic of China
| | - Bingsi Liu
- Department of Chemistry, School of Science, Tianjin University, and the National Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People's Republic of China.
| | - Qinze Liu
- School of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, People's Republic of China
| | - Shitong Guo
- Department of Chemistry, School of Science, Tianjin University, and the National Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People's Republic of China
| | - Xuanyue Wu
- Department of Chemistry, School of Science, Tianjin University, and the National Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People's Republic of China
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42
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Cui J, Lu T, Li F, Wang Y, Lei J, Ma W, Zou Y, Huang C. Flexible and transparent composite nanofibre membrane that was fabricated via a "green" electrospinning method for efficient particulate matter 2.5 capture. J Colloid Interface Sci 2020; 582:506-514. [PMID: 32911399 DOI: 10.1016/j.jcis.2020.08.075] [Citation(s) in RCA: 84] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/18/2020] [Accepted: 08/19/2020] [Indexed: 11/27/2022]
Abstract
Air particulate pollution from ever-increasing industrialization poses an enormous threat to public health. Thus, the development of a green air filter with high efficiency and performance is of urgent necessity. In this study, we introduce a new effective air filtration membrane that can be used for outdoor protection. The air filter's composite nanofibre materials were prepared from polyvinyl alcohol (PVA)-sodium lignosulfonate (LS) via a "green" electrospinning method and thermal crosslinking. The addition of LS helped increase the PM2.5 removal efficiency compared to that of a pure PVA nanofibre membrane. The pressure drops of the electrospun PVA-LS membranes exceeded those of the pristine PVA air filter. The remarkable air filtration performance was maintained even after 10 cycles of circulation filtration. In addition, the PVA-LS composite nanofibre membrane exhibited excellent mechanical properties and transparency due to the introduction of LS. This study provides new insight into the design and development of high-performance and high-visibility green filter media, which include personal protection and building screens.
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Affiliation(s)
- Jiaxin Cui
- Joint Laboratory of Advanced Biomedical Materials (NFU-UGent), College of Chemical Engineering, Nanjing Forestry University (NFU), Nanjing 210037, PR China
| | - Tao Lu
- Joint Laboratory of Advanced Biomedical Materials (NFU-UGent), College of Chemical Engineering, Nanjing Forestry University (NFU), Nanjing 210037, PR China
| | - Fanghua Li
- Joint Laboratory of Advanced Biomedical Materials (NFU-UGent), College of Chemical Engineering, Nanjing Forestry University (NFU), Nanjing 210037, PR China
| | - Yulin Wang
- Joint Laboratory of Advanced Biomedical Materials (NFU-UGent), College of Chemical Engineering, Nanjing Forestry University (NFU), Nanjing 210037, PR China
| | - Jiandu Lei
- Beijing Key Laboratory of Lignocellulosic Chemistry, and MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, PR China
| | - Wenjing Ma
- Joint Laboratory of Advanced Biomedical Materials (NFU-UGent), College of Chemical Engineering, Nanjing Forestry University (NFU), Nanjing 210037, PR China.
| | - Yan Zou
- Department of Mechanics, Huazhong University of Science and Technology, Wuhan 430074, PR China.
| | - Chaobo Huang
- Joint Laboratory of Advanced Biomedical Materials (NFU-UGent), College of Chemical Engineering, Nanjing Forestry University (NFU), Nanjing 210037, PR China.
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43
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Preparation and Characterization of an Electrospun PLA-Cyclodextrins Composite for Simultaneous High-Efficiency PM and VOC Removal. JOURNAL OF COMPOSITES SCIENCE 2020. [DOI: 10.3390/jcs4020079] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Electrospinning is known to be a facile and effective technique to fabricate fibers of a controlled diameter-distribution. Among a multitude of polymers available for the purpose, the attention should be addressed to the environmentally compatible ones, with a special focus on sustainability. Polylactic acid (PLA) is a widespread, non-toxic polymer, originating from renewable sources and it can degrade into innocuous products. While the production of fibrous membranes is attractive for airborne particles filtration applications, their impact on the removal of gaseous compounds is generally neglected. In this study, electrospun PLA-based nanofibers were functionalized with cyclodextrins, because of their characteristic hydrophobic central cavity and a hydrophilic outer surface, in order to provide adsorptive properties to the composite. The aim of this work is to investigate a hybrid composite, from renewable sources, for the combined filtration of particulate matter (PM) and adsorption of volatile organic compounds (VOCs). Results show how their inclusion into the polymer strongly affects the fiber morphology, while their attachment onto the fiber surface only positively affects the filtration efficiency.
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44
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Ravi SK, Singh VK, Suresh L, Ku C, Sanjairaj V, Nandakumar DK, Chen Y, Sun W, Sit PHL, Tan SC. Hydro-Assisted Self-Regenerating Brominated N-Alkylated Thiophene Diketopyrrolopyrrole Dye Nanofibers-A Sustainable Synthesis Route for Renewable Air Filter Materials. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1906319. [PMID: 32182408 DOI: 10.1002/smll.201906319] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Revised: 02/22/2020] [Accepted: 02/24/2020] [Indexed: 06/10/2023]
Abstract
With rising global concerns over the alarming levels of particulate pollution, a sustainable air quality management is the need of the hour. Air filtration research has gained momentum in recent years. However, the research perspective is still blinkered toward formulating new fiber systems for the energy-intensive electrospinning process to fabricate high quality factor air filters. A holistic approach on sustainable air filtration models is still lacking. The air filter model presented in this work uses a simple process involving water-induced self-organization and self-regeneration of nanofibers, and an easy recycling route after the filter life that not only facilitates reuse of the microfibrous scaffold holding the nanofibers but also allows renewal of nanofibers. Three generations of air filters are fabricated and tested, all having high particulate matter (PM)-adsorbing tendency, high filtration efficiency (>95%), and high Young's modulus (≈5 GPa). The renewable air filters offer a sustainable alternative to the present cost-intensive electrospun air filters.
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Affiliation(s)
- Sai Kishore Ravi
- Department of Materials Science and Engineering, National University of Singapore (NUS), Singapore, 117575, Singapore
| | - Varun Kumar Singh
- Department of Materials Science and Engineering, National University of Singapore (NUS), Singapore, 117575, Singapore
| | - Lakshmi Suresh
- Department of Materials Science and Engineering, National University of Singapore (NUS), Singapore, 117575, Singapore
| | - Calvin Ku
- School of Energy and Environment, City University of Hong Kong, Kowloon, Hong Kong SAR, China
| | | | - Dilip Krishna Nandakumar
- Department of Materials Science and Engineering, National University of Singapore (NUS), Singapore, 117575, Singapore
| | - Yun Chen
- Bruker Nano Surface Division, 11 Biopolis Way #10-10, The Helios, Singapore, 138667, Singapore
| | - Wanxin Sun
- Bruker Nano Surface Division, 11 Biopolis Way #10-10, The Helios, Singapore, 138667, Singapore
| | - Patrick H-L Sit
- School of Energy and Environment, City University of Hong Kong, Kowloon, Hong Kong SAR, China
| | - Swee Ching Tan
- Department of Materials Science and Engineering, National University of Singapore (NUS), Singapore, 117575, Singapore
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45
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Fabrication of bead-on-string polyacrylonitrile nanofibrous air filters with superior filtration efficiency and ultralow pressure drop. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2019.116377] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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46
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Cimadoro J, Goyanes S. Reversible swelling as a strategy in the development of smart membranes from electrospun polyvinyl alcohol nanofiber mats. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20190156] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Jonathan Cimadoro
- Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales, Departamento de Física, Laboratorio de Polímeros y Materiales Compuestos (LP&MC)Instituto de Física de Buenos Aires (IFIBA‐CONICET) Buenos Aires Argentina
| | - Silvia Goyanes
- Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales, Departamento de Física, Laboratorio de Polímeros y Materiales Compuestos (LP&MC)Instituto de Física de Buenos Aires (IFIBA‐CONICET) Buenos Aires Argentina
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47
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Chua MH, Cheng W, Goh SS, Kong J, Li B, Lim JYC, Mao L, Wang S, Xue K, Yang L, Ye E, Zhang K, Cheong WCD, Tan BH, Li Z, Tan BH, Loh XJ. Face Masks in the New COVID-19 Normal: Materials, Testing, and Perspectives. RESEARCH (WASHINGTON, D.C.) 2020; 2020:7286735. [PMID: 32832908 PMCID: PMC7429109 DOI: 10.34133/2020/7286735] [Citation(s) in RCA: 208] [Impact Index Per Article: 52.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 07/16/2020] [Indexed: 01/08/2023]
Abstract
The increasing prevalence of infectious diseases in recent decades has posed a serious threat to public health. Routes of transmission differ, but the respiratory droplet or airborne route has the greatest potential to disrupt social intercourse, while being amenable to prevention by the humble face mask. Different types of masks give different levels of protection to the user. The ongoing COVID-19 pandemic has even resulted in a global shortage of face masks and the raw materials that go into them, driving individuals to self-produce masks from household items. At the same time, research has been accelerated towards improving the quality and performance of face masks, e.g., by introducing properties such as antimicrobial activity and superhydrophobicity. This review will cover mask-wearing from the public health perspective, the technical details of commercial and home-made masks, and recent advances in mask engineering, disinfection, and materials and discuss the sustainability of mask-wearing and mask production into the future.
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Affiliation(s)
- Ming Hui Chua
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (ASTAR), 2 Fusionopolis Way, Innovis, Singapore 138634
| | - Weiren Cheng
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (ASTAR), 2 Fusionopolis Way, Innovis, Singapore 138634
| | - Shermin Simin Goh
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (ASTAR), 2 Fusionopolis Way, Innovis, Singapore 138634
| | - Junhua Kong
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (ASTAR), 2 Fusionopolis Way, Innovis, Singapore 138634
| | - Bing Li
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (ASTAR), 2 Fusionopolis Way, Innovis, Singapore 138634
| | - Jason Y. C. Lim
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (ASTAR), 2 Fusionopolis Way, Innovis, Singapore 138634
| | - Lu Mao
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (ASTAR), 2 Fusionopolis Way, Innovis, Singapore 138634
| | - Suxi Wang
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (ASTAR), 2 Fusionopolis Way, Innovis, Singapore 138634
| | - Kun Xue
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (ASTAR), 2 Fusionopolis Way, Innovis, Singapore 138634
| | - Le Yang
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (ASTAR), 2 Fusionopolis Way, Innovis, Singapore 138634
| | - Enyi Ye
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (ASTAR), 2 Fusionopolis Way, Innovis, Singapore 138634
| | - Kangyi Zhang
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (ASTAR), 2 Fusionopolis Way, Innovis, Singapore 138634
| | - Wun Chet Davy Cheong
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (ASTAR), 2 Fusionopolis Way, Innovis, Singapore 138634
| | - Beng Hoon Tan
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (ASTAR), 2 Fusionopolis Way, Innovis, Singapore 138634
| | - Zibiao Li
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (ASTAR), 2 Fusionopolis Way, Innovis, Singapore 138634
| | - Ban Hock Tan
- Department of Infectious Disease, Singapore General Hospital, Singapore
| | - Xian Jun Loh
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (ASTAR), 2 Fusionopolis Way, Innovis, Singapore 138634
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48
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Roh S, Park K, Kim J. Design of Web-to-Web Spacing for the Reduced Pressure Drop and Effective Depth Filtration. Polymers (Basel) 2019; 11:E1822. [PMID: 31698747 PMCID: PMC6918413 DOI: 10.3390/polym11111822] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 11/01/2019] [Accepted: 11/04/2019] [Indexed: 11/17/2022] Open
Abstract
The study aims at lowering the pressure drop and extending the service life at a given set of filter materials implementing a space between the filter layers. As design factors, the web-to-web space was implemented by inserting either a bulk air gap or porous spacer web between the filter webs. The effect of spacing, either by the air gap or by the spacer web, on the pressure drop reduction was apparent for 4-layer constructions, and the effect was greater at the higher face velocity. The use of spacer web was more effective than the air gap in reducing the pressure drop, because the porous, fluffy spacer web acted as an effective air flow channel between the compact filter layers. The loading capacity was also increased with the spacer web implementation, effectively delaying the clogging point and extending the service life. Employing both experimental investigation and numerical simulation, this study intended to provide a practical design solution to the important problem in the field of air filtration. The results of this study can be used as a practical design guide to reduce pressure drop via depth filtration.
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Affiliation(s)
- Sanghyun Roh
- Department of Textiles, Merchandising and Fashion Design, Seoul National University, Seoul 08826, Korea
| | - Kangsoo Park
- R & D Center, Satrec Initiative Co., Ltd., Daejeon 34054, Korea;
| | - Jooyoun Kim
- Department of Textiles, Merchandising and Fashion Design, Seoul National University, Seoul 08826, Korea
- Research Institute of Human Ecology, Seoul National University, Seoul 08826, Korea
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