An electrospun polycarbonate nanofibrous membrane for high efficiency particulate matter filtration

RSC Advances ◽  
2016 ◽  
Vol 6 (69) ◽  
pp. 65275-65281 ◽  
Author(s):  
Qian Li ◽  
Yiyang Xu ◽  
Hanghang Wei ◽  
Xiaofeng Wang
Keyword(s):  
Particulate Matter ◽  
High Efficiency ◽  
Filtration Efficiency ◽  
Influential Factor ◽  
Nanofibrous Membrane

The filtration efficiency of electrospun PC membrane was higher than those of both PVA and PS membranes, suggesting that polarity is the most influential factor shaping the interaction of particles and fiber surfaces.

Development of SPI/AC/PVA nano-composite for air-filtration and purification

2020 ◽  
Vol 24 (1) ◽  
pp. 72-83 ◽  
Author(s):  
Gobi Nallathambi ◽  
Berly Robert ◽  
Sharon Preethi Esmeralda ◽  
Janani Kumaravel ◽  
Vinitha Parthiban
Keyword(s):  
Particulate Matter ◽  
Soy Protein ◽  
Active Sites ◽  
High Efficiency ◽  
High Surface ◽  
Nanofibrous Membrane ◽  
Dual Function ◽  
Air Filtration ◽  
Air Filter ◽  
Content Type

Purpose Development of high efficiency nanofibrous air filter membrane by electrospinning process, to address the air pollution (both the particulate matter and the gaseous components) problem, which has become a major environmental concern. Design/methodology/approach By exploiting the advantage of active sites on soy protein isolate (SPI), the very high surface area of micro-pore rich activated carbon (AC) and the biocompatibility and biodegradable nature of polyvinyl alcohol (PVA). The authors have developed a SPI/AC/PVA hybrid membrane. Spun-bond nonwoven substrate was used as the support material to enhance the mechanical properties and also the filter handling properties. The properties of nanofibrous membrane including morphology, air permeability, filtration efficiency and formaldehyde absorption test were carried out as per standard test methods. Findings SPI-based membrane offers a great potential in air filtration/purification applications. Its potential to capture glancing pollutants at the molecular level is because of the presence of numerous functional groups on the soy protein surface, which enhances the adsorption of particulate matter and toxic gases, even bacteria and viruses to its surface. Originality/value The results are anticipated to provide a potential method to promote the development of a nanofibrous membrane, which can act as a high performance, dual function and eco-friendly air filter/purifier.

Slip effect based bimodal nanofibrous membrane for high-efficiency and low-resistance air purification

2021 ◽  
pp. 119258
Author(s):  
Zhenzhen Quan ◽  
Yao Zu ◽  
Yihan Wang ◽  
Mengjuan Zhou ◽  
Xiaohong Qin ◽  
...  
Keyword(s):  
High Efficiency ◽  
Nanofibrous Membrane ◽  
Air Purification ◽  
Slip Effect ◽  
Low Resistance

scholarly journals Starch-based and multi-purpose nanofibrous membrane for high efficiency nanofiltration

RSC Advances ◽  
2017 ◽  
Vol 7 (56) ◽  
pp. 35368-35375 ◽  
Author(s):  
Sarekha Woranuch ◽  
Autchara Pangon ◽  
Kantapat Puagsuntia ◽  
Nakarin Subjalearndee ◽  
Varol Intasanta
Keyword(s):  
High Efficiency ◽  
Rice Flour ◽  
Nanofibrous Membrane ◽  
Nanofibrous Membranes

The objective of the present work is to develop nanofibrous membranes from rice-flour based nanofibers containing PVA for high efficiency filtration.

Three-dimensional composite electrospun nanofibrous membrane by multi-jet electrospinning with sheath gas for high-efficiency antibiosis air filtration

2021 ◽  
Vol 32 (24) ◽  
pp. 245707
Author(s):  
Jiaxin Jiang ◽  
Zungui Shao ◽  
Xiang Wang ◽  
Ping Zhu ◽  
Shiqing Deng ◽  
...  
Keyword(s):  
High Efficiency ◽  
Three Dimensional ◽  
Nanofibrous Membrane ◽  
Air Filtration

PAA@ZIF-8 incorporated nanofibrous membrane for high-efficiency PM2.5 capture

2021 ◽  
Vol 405 ◽  
pp. 126584
Author(s):  
Jiaxin Guo ◽  
Aamir Hanif ◽  
Jin Shang ◽  
Bhaskar Jyoti Deka ◽  
Ning Zhi ◽  
...  
Keyword(s):  
High Efficiency ◽  
Nanofibrous Membrane

scholarly journals Comparison of Electrostatic Charging at Different Locations in the Melt Blowing Process

2000 ◽  
Vol os-9 (3) ◽  
pp. 1558925000OS-90
Author(s):  
Peter Ping-yi Tsai ◽  
Guo-wei Qin ◽  
Charles Hassenboehler
Keyword(s):  
Flow Resistance ◽  
High Efficiency ◽  
Air Flow ◽  
Filtration Efficiency ◽  
Fiber Glass ◽  
Melt Blowing ◽  
Electrostatic Charging ◽  
The Media

Melt blown (MB) fabrics are composed of fine fibers which contribute to high filtration efficiency (FE) and low air flow resistance compared to high efficiency filtration media such as fiber glass paper. Furthermore, MB fabrics are mostly made of polypropylene (PP) polymer, which can be electrostatically charged to enhance the media filtration efficiency without the increase of air flow resistance. However, different charging techniques or charging at different locations on the MB line will contribute to different filtration efficiency. This paper compares the efficiencies of different charging techniques in the MB line.

scholarly journals Waterproof-breathable PTFE nano- and Microfiber Membrane as High Efficiency PM2.5 Filter

Polymers ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 590 ◽  
Author(s):  
Xiao Li ◽  
Xiao-Xiong Wang ◽  
Tian-Tian Yue ◽  
Yuan Xu ◽  
Ming-Liang Zhao ◽  
...  
Keyword(s):  
Contact Angle ◽  
Water Contact Angle ◽  
High Efficiency ◽  
Filtration Efficiency ◽  
Poly Vinyl Alcohol ◽  
Fiber Membrane ◽  
Gas Filtration ◽  
Electrospinning Technique ◽  
Water Contact ◽  
Microfiber Membrane

This study shows the feasibility of using electrospinning technique to prepare polytetrafluoroethylene/poly (vinyl alcohol) (PTFE/PVA) nanofibers on PTFE microfiber membrane as substrate. Then, PVA in the fiber membrane was removed by thermal treatment at about 350 °C. Compared to PTFE microfiber substrates, the composite PTFE fiber membranes (CPFMs) have improved filtration efficiency by 70% and water contact angle by 23°. Experimental test data showed that the water contact angle of the sample increased from about 107° to 130°, the filtration efficiency of PM2.5 increased from 44.778% to 98.905%, and the filtration efficiency of PM7.25 increased from 66.655% to 100% due to the electrospun PTFE nanofiber layer. This work demonstrates the potential of CPFMs as a filter for the production of indoor or outdoor dust removal and industrially relevant gas filtration.

scholarly journals Residents’ Perceptions of and Response Behaviors to Particulate Matter—A Case Study in Seoul, Korea

2019 ◽  
Vol 9 (18) ◽  
pp. 3660 ◽  
Author(s):  
Myung Eun Cho ◽  
Mi Jeong Kim
Keyword(s):  
Particulate Matter ◽  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Physical Symptoms ◽  
Influential Factor ◽  
Psychological Attributes ◽  
Mitigation Action ◽  
Response Behaviors

This study is interested in understanding the particulate matter perceptions and response behaviors of residents. The purpose of this study was to identify indoor air quality along with the response behaviors of residents in Seoul, to ascertain whether there is a difference in behaviors when particulate matter is present, according to the characteristics of residents and to grasp the nature of this difference. A questionnaire survey of 171 respondents was conducted. The questionnaire measured the indoor air quality perceived by residents, the health symptoms caused by particulate matter, residents’ response behaviors to particulate matter and the psychological attributes affecting those response behaviors. Residents of Seoul were divided into college students in their twenties, male workers in their thirties and forties and female housewives in their thirties and forties. The data were calibrated by SPSS 23 using a one-way analysis of variance (ANOVA) and multiple regression analyses. The results show that most people found particulate matter to be an important problem but were unable to do sufficient mitigation action to prevent its presence. Residents showed greater psychological stress resulting in difficulty going out than physical symptoms. The most influential factor on response behaviors was psychological attributes. Participants were aware of the risks of particulate matter but believed it to be generated by external factors; thus, they felt powerless to do anything about it, which proved to be an obstacle to response behaviors.

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