Nanofibrous Mats for Particulate Matter Filtration

Archer, Bright; Shaumbwa, Veino Risto; Liu, Dagang; Li, Minyu; Iimaa, Tuyajargal; Surenjav, Unursaikhan

doi:10.1021/acs.iecr.1c00829

Cited by 22 publications

(23 citation statements)

References 135 publications

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“…To remove PM, numerous factors such as inertia, interception, diffusion, impaction, and sieving contribute significantly to the capture of these particles, as shown in Figure 3B. [ 40 ] The removal ratio of polymer filters is enhanced with an increase in particle size and depends on the air velocity, temperature, and humidity in the environment. [ 41 ] The characteristics of high filtration performance, low airflow resistance, stable air pressure drop, and high filter quality factor ( Q f ) constitute the focus of filtration properties.…”

Section: Purification Methodsmentioning

confidence: 99%

Section: Purification Methodsmentioning

confidence: 99%

“…As shown in Figure 3A, when air passes through a filter, particles that are larger than the pores of the filters are trapped. To remove PM, numerous factors such as inertia, [40] Copyright 2021, American Chemical Society. B) PM filtration mechanism.…”

Section: Filtration and Adsorptionmentioning

confidence: 99%

mentioning

confidence: 99%

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Air Purification Using Polymer Fiber Filters

Chai

Tong

Wang

et al. 2021

Macro Materials & Eng

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Polymer fiber filters, with their high surface area, low cost, and easy large-scale manufacturing, are widely used in air purification. These filters have been combined with various types of functional nanoparticles to endow them with electrostatic adsorption, photocatalysis, electrocatalysis, photoelectrocatalysis, or antibacterial properties, and improve their filtering performance. In this study, a summary of the research on single polymer and polymer composite filters for highly efficient air purification is presented. In single polymer filters, polar groups in the polymer chains, a rich porous structure, and electret process improve their removal capability. In polymer composite filters, metal-organic frameworks, porous particles, and electret materials as fillers improve the physical adsorption of the materials, while the use of photocatalysts, electrocatalysts, photoelectrocatalysts, and antibacterial agents as functional fillers endows the filters with additional chemical reactions for the complete degradation of gas and microorganism pollutants. Finally, the challenges that remain in the development of polymer filters for use in air purification are also discussed in terms of material type and fabrication technology. It is expected that polymer filters with tunable surface properties and multifunctions can realize highly efficient air purification with low energy consumption.

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Section: Purification Methodsmentioning

confidence: 99%

Section: Purification Methodsmentioning

confidence: 99%

Section: Filtration and Adsorptionmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Air Purification Using Polymer Fiber Filters

Chai

Tong

Wang

et al. 2021

Macro Materials & Eng

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“…A high concentration of particulate mass (15–20 mg/m 3 for NaCl particles) is imposed on a test material at a flow rate of 85 L/min that reflects a worker’s inhalation rate of a relatively high workload . Although such a harsh condition is well justified for assurance of performance, in reality, filtering facepiece users encounter diverse environmental conditions with different particle sizes and concentrations. , Accordingly, those particle parameters directly affect the capture efficiency , and clogging of pores, eventually influencing the service life of the filtering facepiece.…”

Section: Introductionmentioning

confidence: 99%

Sequential Multiscale Simulation of a Filtering Facepiece for Prediction of Filtration Efficiency and Resistance in Varied Particulate Scenarios

Lee

Jung

Park

et al. 2021

ACS Appl. Mater. Interfaces

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This study explores a novel approach of multiscale modeling and simulation to characterize the filtration behavior of a facepiece in varied particulate conditions. Sequential multiscale modeling was performed for filter media, filtering facepiece, and testing setup. The developed virtual models were validated for their morphological characteristics and filtration performance by comparing with the data from the physical experiments. Then, a virtual test was conducted in consideration of a time scale, simulating diverse particulate environments with different levels of particle size distribution, particle concentration, and face velocity. An environment with small particles and high mass concentration resulted in a rapid buildup of resistance, reducing the service life. Large particles were accumulated mostly at the entrance of the filter layer, resulting in a lower penetration and slower buildup of resistance. This study is significant in that the adopted virtual approach enables the prediction of filtration behavior and service life, applying diverse environmental conditions without involving the costs of extra setups for the physical experiments. This study demonstrates a novel and economic research method that can be effectively applied to the research and development of filters.

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Nanofibrous Polymeric Membranes for Air Filtration Application: A Review of Progress after the COVID‐19 Pandemic

Scaffaro

Citarrella

2023

Macro Materials & Eng

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Air pollution is one of the major global problems causing around 7 million dead per year. In fact, a connection between infectious disease transmission, including COVID‐19, and air pollution has been proved: COVID‐19 consequences on human health are found to be more severe in areas characterized by high levels of particulate matter (PM). Therefore, after the COVID‐19 pandemic, the production of air filtration devices with high filtration efficiency has gained more and more attention. Herein, a review of the post‐COVID‐19 pandemic progress in nanofibrous polymeric membranes for air filtration is provided. First, a brief discussion on the different types of filtration mechanism and the key parameters of air filtration is proposed. The materials recently used for the production of nanofibrous filter membranes are presented, distinguishing between non‐biodegradable polymeric materials and biodegradable ones. Subsequently, production technique proposed for the fabrication of nanofibrous membranes, i.e., electrospinning and solution blow spinning, are presented aiming to analyze and compare filtration efficiency, pressure drop, reusability and durability of the different polymeric system processed with different techniques. Finally, present challenges and future perspectives of nanofibrous polymeric membranes for air filtration are discussed with a particular emphasis on strategies to produce greener and more performant devices.

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Nanofibrous Mats for Particulate Matter Filtration

Cited by 22 publications

References 135 publications

Air Purification Using Polymer Fiber Filters

Air Purification Using Polymer Fiber Filters

Sequential Multiscale Simulation of a Filtering Facepiece for Prediction of Filtration Efficiency and Resistance in Varied Particulate Scenarios

Nanofibrous Polymeric Membranes for Air Filtration Application: A Review of Progress after the COVID‐19 Pandemic

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