Photocatalytic Activity and Filtration Performance of Hybrid TiO<sub>2</sub>-Cellulose Acetate Nanofibers for Air Filter Applications

A facile method to prepare hybrid cellulose acetate nanofibers containing TiO<sub>2</sub> (TiO<sub>2</sub>-CA nanofibers) by emulsion electrospinning technique was developed for the denitrification and filtration of particulate matters (PMs). This work found that hybrid TiO&l...

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Main Authors: Miyeon Kwon, Juhea Kim, Juran Kim
Format: Article
Language:English
Published: MDPI AG 2021-04-01
Series:Polymers
Subjects:
Online Access:https://www.mdpi.com/2073-4360/13/8/1331
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author Miyeon Kwon
Juhea Kim
Juran Kim
author_facet Miyeon Kwon
Juhea Kim
Juran Kim
author_sort Miyeon Kwon
collection DOAJ
description A facile method to prepare hybrid cellulose acetate nanofibers containing TiO<sub>2</sub> (TiO<sub>2</sub>-CA nanofibers) by emulsion electrospinning technique was developed for the denitrification and filtration of particulate matters (PMs). This work found that hybrid TiO<sub>2</sub>-CA nanofibers mainly contain the anatase form of TiO<sub>2</sub>, contributing to the photodecomposition of NO gas under UV irradiation. The TiO<sub>2</sub>-CA nanofibers also showed an excellent filtration efficiency of 99.5% for PM<sub>0.5</sub> and a photocatalytic efficiency of 78.6% for NO removal. Furthermore, the results implied that the morphology of the TiO<sub>2</sub>-CA nanofibers, such as micro-wrinkles and protrusions, increased the surface hydrophobicity up to 140°, with the increased addition of TiO<sub>2</sub> nanoparticles. The proposed TiO<sub>2</sub>-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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spelling doaj.art-0b0fae44137b4f3097b6751b652d24192023-11-21T16:09:35ZengMDPI AGPolymers2073-43602021-04-01138133110.3390/polym13081331Photocatalytic Activity and Filtration Performance of Hybrid TiO<sub>2</sub>-Cellulose Acetate Nanofibers for Air Filter ApplicationsMiyeon Kwon0Juhea Kim1Juran Kim2Human Convergence R&D Group, Korea Institute of Industrial Technology, Ansan 15588, KoreaHuman Convergence R&D Group, Korea Institute of Industrial Technology, Ansan 15588, KoreaAdvanced Textile R&D Group, Korea Institute of Industrial Technology, Ansan 15588, KoreaA facile method to prepare hybrid cellulose acetate nanofibers containing TiO<sub>2</sub> (TiO<sub>2</sub>-CA nanofibers) by emulsion electrospinning technique was developed for the denitrification and filtration of particulate matters (PMs). This work found that hybrid TiO<sub>2</sub>-CA nanofibers mainly contain the anatase form of TiO<sub>2</sub>, contributing to the photodecomposition of NO gas under UV irradiation. The TiO<sub>2</sub>-CA nanofibers also showed an excellent filtration efficiency of 99.5% for PM<sub>0.5</sub> and a photocatalytic efficiency of 78.6% for NO removal. Furthermore, the results implied that the morphology of the TiO<sub>2</sub>-CA nanofibers, such as micro-wrinkles and protrusions, increased the surface hydrophobicity up to 140°, with the increased addition of TiO<sub>2</sub> nanoparticles. The proposed TiO<sub>2</sub>-CA nanofibers, as a result, would be promising materials for highly efficient and sustainable air filters for industrial and home appliance systems.https://www.mdpi.com/2073-4360/13/8/1331filtration efficiencyphotocatalysttitanium dioxideemulsion electrospinningcellulose acetate nanofibers
spellingShingle Miyeon Kwon
Juhea Kim
Juran Kim
Photocatalytic Activity and Filtration Performance of Hybrid TiO<sub>2</sub>-Cellulose Acetate Nanofibers for Air Filter Applications
Polymers
filtration efficiency
photocatalyst
titanium dioxide
emulsion electrospinning
cellulose acetate nanofibers
title Photocatalytic Activity and Filtration Performance of Hybrid TiO<sub>2</sub>-Cellulose Acetate Nanofibers for Air Filter Applications
title_full Photocatalytic Activity and Filtration Performance of Hybrid TiO<sub>2</sub>-Cellulose Acetate Nanofibers for Air Filter Applications
title_fullStr Photocatalytic Activity and Filtration Performance of Hybrid TiO<sub>2</sub>-Cellulose Acetate Nanofibers for Air Filter Applications
title_full_unstemmed Photocatalytic Activity and Filtration Performance of Hybrid TiO<sub>2</sub>-Cellulose Acetate Nanofibers for Air Filter Applications
title_short Photocatalytic Activity and Filtration Performance of Hybrid TiO<sub>2</sub>-Cellulose Acetate Nanofibers for Air Filter Applications
title_sort photocatalytic activity and filtration performance of hybrid tio sub 2 sub cellulose acetate nanofibers for air filter applications
topic filtration efficiency
photocatalyst
titanium dioxide
emulsion electrospinning
cellulose acetate nanofibers
url https://www.mdpi.com/2073-4360/13/8/1331
work_keys_str_mv AT miyeonkwon photocatalyticactivityandfiltrationperformanceofhybridtiosub2subcelluloseacetatenanofibersforairfilterapplications
AT juheakim photocatalyticactivityandfiltrationperformanceofhybridtiosub2subcelluloseacetatenanofibersforairfilterapplications
AT jurankim photocatalyticactivityandfiltrationperformanceofhybridtiosub2subcelluloseacetatenanofibersforairfilterapplications