Fabrication of New TiO<sub>2</sub> Photocatalyst for Removing Organic Dyes and Hazardous VOCs in Air Purifier System
We synthesized an amorphous Ti-based hydroperoxo complex (ATPC) using a facile method involvingonly titanium hydride (TiH<sub>2</sub>) and H<sub>2</sub>O<sub>2</sub> under mild conditions. We chose TiH<sub>2</sub> as the precursor because it has more r...
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MDPI AG
2023-05-01
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| Online Access: | https://www.mdpi.com/2073-4344/13/6/935 |
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| author | Ji Won Lee Rak Hyun Jeong Ikjo Shin Jin-Hyo Boo |
| author_facet | Ji Won Lee Rak Hyun Jeong Ikjo Shin Jin-Hyo Boo |
| author_sort | Ji Won Lee |
| collection | DOAJ |
| description | We synthesized an amorphous Ti-based hydroperoxo complex (ATPC) using a facile method involvingonly titanium hydride (TiH<sub>2</sub>) and H<sub>2</sub>O<sub>2</sub> under mild conditions. We chose TiH<sub>2</sub> as the precursor because it has more reactive sites than metal oxides such as TiO<sub>2</sub>. Qualitative and quantitative optical measurements showed that our synthesized ATPC photocatalysts contained many hydroperoxo groups and various oxidation states of Ti (Ti<sup>2+</sup>, Ti<sup>3+</sup>, and Ti<sup>4+</sup>). Thus, the synthesized ATPC exhibits excellent photocatalytic properties with very fast rates of organic decolorization compared to other conventional visiblelight catalysts. The presence of many hydroperoxo complexes increases the formation of active radicals, which can degrade VOCs such as acetaldehyde in a gas phase. To test the application of the synthesized ATPC, we fabricated a filter system in an air purifier using ATPC coating layers and successfully removed the VOCs. We also proposed a possible photocatalytic oxidation mechanism with ATPC based on this study. It is important to conduct application tests as well as commercialization in photocatalytic experiments. |
| first_indexed | 2024-03-11T02:39:33Z |
| format | Article |
| id | doaj.art-31abd022bcb34697aba3107d8495136e |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-11T02:39:33Z |
| publishDate | 2023-05-01 |
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| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-31abd022bcb34697aba3107d8495136e2023-11-18T09:41:25ZengMDPI AGCatalysts2073-43442023-05-0113693510.3390/catal13060935Fabrication of New TiO<sub>2</sub> Photocatalyst for Removing Organic Dyes and Hazardous VOCs in Air Purifier SystemJi Won Lee0Rak Hyun Jeong1Ikjo Shin2Jin-Hyo Boo3Department of Chemistry, Sungkyunkwan University, Suwon 16419, Republic of KoreaDepartment of Chemistry, Sungkyunkwan University, Suwon 16419, Republic of KoreaDokyeung21 Co., Ltd., Suwon 13631, Republic of KoreaDepartment of Chemistry, Sungkyunkwan University, Suwon 16419, Republic of KoreaWe synthesized an amorphous Ti-based hydroperoxo complex (ATPC) using a facile method involvingonly titanium hydride (TiH<sub>2</sub>) and H<sub>2</sub>O<sub>2</sub> under mild conditions. We chose TiH<sub>2</sub> as the precursor because it has more reactive sites than metal oxides such as TiO<sub>2</sub>. Qualitative and quantitative optical measurements showed that our synthesized ATPC photocatalysts contained many hydroperoxo groups and various oxidation states of Ti (Ti<sup>2+</sup>, Ti<sup>3+</sup>, and Ti<sup>4+</sup>). Thus, the synthesized ATPC exhibits excellent photocatalytic properties with very fast rates of organic decolorization compared to other conventional visiblelight catalysts. The presence of many hydroperoxo complexes increases the formation of active radicals, which can degrade VOCs such as acetaldehyde in a gas phase. To test the application of the synthesized ATPC, we fabricated a filter system in an air purifier using ATPC coating layers and successfully removed the VOCs. We also proposed a possible photocatalytic oxidation mechanism with ATPC based on this study. It is important to conduct application tests as well as commercialization in photocatalytic experiments.https://www.mdpi.com/2073-4344/13/6/935visiblelight photocatalystTi-based hydroperoxo complexcoating layerorganic dye and hazardous VOCair purifier system |
| spellingShingle | Ji Won Lee Rak Hyun Jeong Ikjo Shin Jin-Hyo Boo Fabrication of New TiO<sub>2</sub> Photocatalyst for Removing Organic Dyes and Hazardous VOCs in Air Purifier System Catalysts visiblelight photocatalyst Ti-based hydroperoxo complex coating layer organic dye and hazardous VOC air purifier system |
| title | Fabrication of New TiO<sub>2</sub> Photocatalyst for Removing Organic Dyes and Hazardous VOCs in Air Purifier System |
| title_full | Fabrication of New TiO<sub>2</sub> Photocatalyst for Removing Organic Dyes and Hazardous VOCs in Air Purifier System |
| title_fullStr | Fabrication of New TiO<sub>2</sub> Photocatalyst for Removing Organic Dyes and Hazardous VOCs in Air Purifier System |
| title_full_unstemmed | Fabrication of New TiO<sub>2</sub> Photocatalyst for Removing Organic Dyes and Hazardous VOCs in Air Purifier System |
| title_short | Fabrication of New TiO<sub>2</sub> Photocatalyst for Removing Organic Dyes and Hazardous VOCs in Air Purifier System |
| title_sort | fabrication of new tio sub 2 sub photocatalyst for removing organic dyes and hazardous vocs in air purifier system |
| topic | visiblelight photocatalyst Ti-based hydroperoxo complex coating layer organic dye and hazardous VOC air purifier system |
| url | https://www.mdpi.com/2073-4344/13/6/935 |
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