A novel cellulose acetate/poly (ionic liquid) composite air filter

Zhu, Mengni; Cao, Qiping; Liu, Bingyang; Guo, Haoyu; Wang, Xing; Han, Ying; Sun, Guangwei; Li, Yao; Zhou, Jinghui

doi:10.1007/s10570-020-03034-8

Cited by 36 publications

(22 citation statements)

References 50 publications

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“…[45][46][47][48][49][50][51][52][53][54] However, natural materials, including silk, wool, cellulose, soy protein, gelatin, and chitosan, took on greater significance due to increasing awareness for sustainability. [13,[55][56][57][58][59][60] Furthermore, expanded polystyrene (EPS) waste was successfully used for the production of air filters by electrospinning. [61] In addition to the material type and additives, which can be used to functionalize the formed fibers, [12] process variables such as applied voltage, flow rate, type of collector, and distance between needle tip and collector were adjusted to tailor the final fiber properties such as diameter, length, porosity, pore size, and morphology.…”

Section: Electrospinningmentioning

confidence: 99%

“…Thus, it is common to decrease the fiber diameter in the air filters by reducing the polymer concentration, adjusting the solvent system, or incorporating specific inorganic NPs during fabrication to alter the solution's viscosity. [46,49,57,66,69] When fibers are deposited on substrates, the majority of the fibers is deposited on the grid, and only a few fibers extend into the gaps of the grid. This leaves back areas, which are not covered by the fibers and thus, decrease the filter efficiency.…”

Section: Structural Optimizationmentioning

confidence: 99%

“…[172] Polymers such as polyionic liquids can kill bacteria by destroying their phospholipid bilayer membrane, yielding strong antibacterial properties. [57] In general, the incorporation of metallic NPs, such as silver, copper, and nickel is a common strategy to achieve antimicrobial properties. These NPs can electrostatically interact with microorganisms, provide high surface areas for cell contact and release metal ions, during which they can disrupt cellular respiration, penetrate the cell membrane, and disrupt metabolic processes.…”

Section: Antimicrobial Featuresmentioning

confidence: 99%

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Review on Polymeric, Inorganic, and Composite Materials for Air Filters: From Processing to Properties

Henning

Abdullayev

Vakifahmetoğlu

et al. 2021

Adv Energy and Sustain Res

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Particulate and gaseous air pollutants pose a threat to human health and contribute to climate change. By today, air filters, stationary and portable, are markedly improved and can often provide innocuous air pollution levels. After introducing the classification and standards on air filters, the influence of the processing route and its parameters on the resulting air filter properties and consequently its performance are discussed. Numerous tools are presented to adjust structural properties such as fiber or pore diameter, specific surface area, surface charge, hydrophilicity, or photocatalytic activity to achieve the desired performance in terms of high filtration efficiencies, sufficient mechanical stability, regeneration eligibility, antimicrobial and optical properties. In particular, inorganic and composite materials as well as nonfibrous structures are covered, which are currently holding an outsider position in an air filter community dominated by polymeric materials and fibrous structures.

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Section: Electrospinningmentioning

confidence: 99%

Section: Structural Optimizationmentioning

confidence: 99%

Section: Antimicrobial Featuresmentioning

confidence: 99%

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Review on Polymeric, Inorganic, and Composite Materials for Air Filters: From Processing to Properties

Henning

Abdullayev

Vakifahmetoğlu

et al. 2021

Adv Energy and Sustain Res

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“…However, the semiconductor industry has already adopted clean room technology to control and reduce product contamination [ 9 , 10 , 11 ]. In order to achieve high performance air filtration, different materials, including foams, carbon fibers, carbon nanotubes, and different types of fiber filters, such as standard glass, melt blown, cellulose and spunbond fibers, and the mixture of different materials were investigated aiming various air filtration applications [ 12 , 13 , 14 , 15 , 16 ]. Among them, fiber materials have become an important branch of filter materials due to the simplicity of processing and their porous structure.…”

Section: Introductionmentioning

confidence: 99%

Electrospun Nanofiber Mats for Filtering Applications—Technology, Structure and Materials

2021

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Air pollution is one of the biggest health and environmental problems in the world and a huge threat to human health on a global scale. Due to the great impact of respiratory viral infections, chronic obstructive pulmonary disease, lung cancer, asthma, bronchitis, emphysema, lung disease, and heart disease, respiratory allergies are increasing significantly every year. Because of the special properties of electrospun nanofiber mats, e.g., large surface-to-volume ratio and low basis weight, uniform size, and nanoporous structure, nanofiber mats are the preferred choice for use in large-scale air filtration applications. In this review, we summarize the significant studies on electrospun nanofiber mats for filtration applications, present the electrospinning technology, show the structure and mechanism of air filtration. In addition, an overview of current air filtration materials derived from bio- and synthetic polymers and blends is provided. Apart from this, the use of biopolymers in filtration applications is still relatively new and this field is still under-researched. The application areas of air filtration materials are discussed here and future prospects are summarized in conclusion. In order to develop new effective filtration materials, it is necessary to understand the interaction between technology, materials, and filtration mechanisms, and this study was intended to contribute to this effort.

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“…Electrospun nanofibers that remove air pollutants such as PMs and VOCs have been of great interest due to their highly specific surface area, interconnected nanoscale pore structures, nanosized fiber diameters, and porous structure, as well as their versatility for incorporating chemical modifications for air filter applications [ 4 ]. Particularly, in many applications, such as biomedical or cosmetic products and air filters [ 5 , 6 ], cellulose nanofibers have received increasing attention due to the advantages of large specific surface area, versatile chemical modifications, and good mechanical properties [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic Activity and Filtration Performance of Hybrid TiO2-Cellulose Acetate Nanofibers for Air Filter Applications

Kwon

Kim

2021

Polymers

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A facile method to prepare hybrid cellulose acetate nanofibers containing TiO2 (TiO2-CA nanofibers) by emulsion electrospinning technique was developed for the denitrification and filtration of particulate matters (PMs). This work found that hybrid TiO2-CA nanofibers mainly contain the anatase form of TiO2, contributing to the photodecomposition of NO gas under UV irradiation. The TiO2-CA nanofibers also showed an excellent filtration efficiency of 99.5% for PM0.5 and a photocatalytic efficiency of 78.6% for NO removal. Furthermore, the results implied that the morphology of the TiO2-CA nanofibers, such as micro-wrinkles and protrusions, increased the surface hydrophobicity up to 140°, with the increased addition of TiO2 nanoparticles. The proposed TiO2-CA nanofibers, as a result, would be promising materials for highly efficient and sustainable air filters for industrial and home appliance systems.

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A novel cellulose acetate/poly (ionic liquid) composite air filter

Cited by 36 publications

References 50 publications

Review on Polymeric, Inorganic, and Composite Materials for Air Filters: From Processing to Properties

Review on Polymeric, Inorganic, and Composite Materials for Air Filters: From Processing to Properties

Electrospun Nanofiber Mats for Filtering Applications—Technology, Structure and Materials

Photocatalytic Activity and Filtration Performance of Hybrid TiO2-Cellulose Acetate Nanofibers for Air Filter Applications

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