A Remarkable Photocatalyst Filter for Indoor Air Treatment
A crucial environmental public health risk is air pollution caused by organic contaminants, bio-aerosols, and fine particulate matter (PM<sub>2.5–10</sub>). A multi-purpose photocatalyst filter with photocatalytic nitrogen-doped titanium dioxide (PNT) incorporated into non-woven polymer...
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MDPI AG
2022-11-01
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| Series: | Catalysts |
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| Online Access: | https://www.mdpi.com/2073-4344/12/11/1433 |
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| author | Vijayarohini Parasuraman Parasuraman Perumalswamy Sekar Hojae Lee Mahshab Sheraz Woo Ram Lee Tae Young Park Seungdo Kim |
| author_facet | Vijayarohini Parasuraman Parasuraman Perumalswamy Sekar Hojae Lee Mahshab Sheraz Woo Ram Lee Tae Young Park Seungdo Kim |
| author_sort | Vijayarohini Parasuraman |
| collection | DOAJ |
| description | A crucial environmental public health risk is air pollution caused by organic contaminants, bio-aerosols, and fine particulate matter (PM<sub>2.5–10</sub>). A multi-purpose photocatalyst filter with photocatalytic nitrogen-doped titanium dioxide (PNT) incorporated into non-woven polymer fibers (NWPF) with wide applications is focused on in detail in this work. Loading of PNT on NWPF is carried out by the simple dip coating method. Para-xylene is selected as the target pollutant for the removal of organic contaminants. Higher removal efficiency of <i>p</i>-xylene (94.2%) is achieved under fluorescent daylight. The filtration efficiency of PNT is also evaluated to capture PM<sub>2.5–10</sub>, which is increased with higher loading content of PNT. At a high air flow rate, the filtration efficiency of the photocatalyst PNT/NWPF is 97.33%, whereas the efficiency of the pristine NWPF is 91.1%. Moreover, the PNT/NWPF filter exhibits excellent antibacterial activity (99.9%) under visible light irradiation, but the pristine NWPF filter has negligible destruction effects on pathogens. These results clearly indicate that a PNT-coated NWPF filter would be an outstanding multi-purpose material for indoor air purification systems. |
| first_indexed | 2024-03-09T18:25:57Z |
| format | Article |
| id | doaj.art-f6f58686d39d4ed3ab7b00cc66a53dac |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-09T18:25:57Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-f6f58686d39d4ed3ab7b00cc66a53dac2023-11-24T07:56:00ZengMDPI AGCatalysts2073-43442022-11-011211143310.3390/catal12111433A Remarkable Photocatalyst Filter for Indoor Air TreatmentVijayarohini Parasuraman0Parasuraman Perumalswamy Sekar1Hojae Lee2Mahshab Sheraz3Woo Ram Lee4Tae Young Park5Seungdo Kim6Research Center for Climate Change and Energy (RCCCE), Hallym University, Chuncheon 24252, Republic of KoreaNano-InnoTek Corporation, 123, Digital-ro 26-gil, Guro-gu, Seoul 08390, Republic of KoreaDepartment of Chemistry, Hallym University, Chuncheon 24252, Republic of KoreaNano-InnoTek Corporation, 123, Digital-ro 26-gil, Guro-gu, Seoul 08390, Republic of KoreaDepartment of Chemistry, School of Future Convergence, Hallym University, Chuncheon 24252, Republic of KoreaDepartment of Industrial Co-Operation, Konkuk University, Seoul 08390, Republic of KoreaResearch Center for Climate Change and Energy (RCCCE), Hallym University, Chuncheon 24252, Republic of KoreaA crucial environmental public health risk is air pollution caused by organic contaminants, bio-aerosols, and fine particulate matter (PM<sub>2.5–10</sub>). A multi-purpose photocatalyst filter with photocatalytic nitrogen-doped titanium dioxide (PNT) incorporated into non-woven polymer fibers (NWPF) with wide applications is focused on in detail in this work. Loading of PNT on NWPF is carried out by the simple dip coating method. Para-xylene is selected as the target pollutant for the removal of organic contaminants. Higher removal efficiency of <i>p</i>-xylene (94.2%) is achieved under fluorescent daylight. The filtration efficiency of PNT is also evaluated to capture PM<sub>2.5–10</sub>, which is increased with higher loading content of PNT. At a high air flow rate, the filtration efficiency of the photocatalyst PNT/NWPF is 97.33%, whereas the efficiency of the pristine NWPF is 91.1%. Moreover, the PNT/NWPF filter exhibits excellent antibacterial activity (99.9%) under visible light irradiation, but the pristine NWPF filter has negligible destruction effects on pathogens. These results clearly indicate that a PNT-coated NWPF filter would be an outstanding multi-purpose material for indoor air purification systems.https://www.mdpi.com/2073-4344/12/11/1433PNT nanospheresPM<sub>2.5–10</sub>dust captureVOC removal<i>p</i>-xylenepathogen |
| spellingShingle | Vijayarohini Parasuraman Parasuraman Perumalswamy Sekar Hojae Lee Mahshab Sheraz Woo Ram Lee Tae Young Park Seungdo Kim A Remarkable Photocatalyst Filter for Indoor Air Treatment Catalysts PNT nanospheres PM<sub>2.5–10</sub> dust capture VOC removal <i>p</i>-xylene pathogen |
| title | A Remarkable Photocatalyst Filter for Indoor Air Treatment |
| title_full | A Remarkable Photocatalyst Filter for Indoor Air Treatment |
| title_fullStr | A Remarkable Photocatalyst Filter for Indoor Air Treatment |
| title_full_unstemmed | A Remarkable Photocatalyst Filter for Indoor Air Treatment |
| title_short | A Remarkable Photocatalyst Filter for Indoor Air Treatment |
| title_sort | remarkable photocatalyst filter for indoor air treatment |
| topic | PNT nanospheres PM<sub>2.5–10</sub> dust capture VOC removal <i>p</i>-xylene pathogen |
| url | https://www.mdpi.com/2073-4344/12/11/1433 |
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