Controlling Nitrogen Oxide and Ultraviolet-A irradiance in ventilation duct system using TiO2 photocatalyst
DC Field | Value | Language |
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dc.contributor.author | Song, Yong Woo | - |
dc.contributor.author | Kim, Seong Eun | - |
dc.contributor.author | Jung, Yong Gi | - |
dc.contributor.author | Yoo, Jae Yun | - |
dc.contributor.author | Park, Jin Chul | - |
dc.date.accessioned | 2021-10-29T00:40:25Z | - |
dc.date.available | 2021-10-29T00:40:25Z | - |
dc.date.issued | 2021-07 | - |
dc.identifier.issn | 0360-1323 | - |
dc.identifier.issn | 1873-684X | - |
dc.identifier.uri | https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/50882 | - |
dc.description.abstract | In this study, we verified the application of TiO2 photocatalysts on ventilation ducts used in buildings and their effects on reducing nitrogen oxide (NOx), which is a typical particulate matter precursor. The TiO2 photocatalyst produces a radical dioxide with a strong acid oxidation power through photochemical reactions with ultraviolet-A (UV-A) rays and removes NOx through oxidation. The removal experiment was conducted by applying TiO2 photocatalyst coatings inside the duct to comply with the conditions of the ISO 22197-1: 2007. In addition, changes in the NOx removal were confirmed through changes in the concentration of NOx and UV-A irradiance inside the duct. At approximately 100 min after switching on the UV-A lamp during the experiment conduced according to ISO 22197-1: 2007, the NOx concentration decreased to 0.053 ppm (by 94.87%). Moreover, it has been confirmed that the trend of reduction is proportional to the changes in UV-A irradiance and NOx concentration, that is, an increase in UV-A irradiance has a significant impact on the reduction of NOx concentration; NOx reduction increases as a secondary function due to an increase in the UV-A irradiance. Through this study, it is believed that NOx, a representative precursor material that generates particulate matter, can be removed through a building ventilation system using a TiO2 photocatalyst. © 2021 Elsevier Ltd | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | Elsevier Ltd | - |
dc.title | Controlling Nitrogen Oxide and Ultraviolet-A irradiance in ventilation duct system using TiO2 photocatalyst | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.buildenv.2021.107881 | - |
dc.identifier.bibliographicCitation | Building and Environment, v.199 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.wosid | 000663461300003 | - |
dc.identifier.scopusid | 2-s2.0-85105021321 | - |
dc.citation.title | Building and Environment | - |
dc.citation.volume | 199 | - |
dc.type.docType | Article | - |
dc.publisher.location | 영국 | - |
dc.subject.keywordAuthor | Nitrogen oxides | - |
dc.subject.keywordAuthor | Particulate matter | - |
dc.subject.keywordAuthor | Reduction test | - |
dc.subject.keywordAuthor | TiO2 photocatalyst | - |
dc.subject.keywordAuthor | Ventilation system | - |
dc.subject.keywordPlus | Particles (particulate matter) | - |
dc.subject.keywordPlus | Photochemical reactions | - |
dc.subject.keywordPlus | Titanium dioxide | - |
dc.subject.keywordPlus | Ventilation | - |
dc.subject.keywordPlus | % reductions | - |
dc.subject.keywordPlus | Duct systems | - |
dc.subject.keywordPlus | In-buildings | - |
dc.subject.keywordPlus | Nitrogen oxides concentration | - |
dc.subject.keywordPlus | Particulate Matter | - |
dc.subject.keywordPlus | Reduction test | - |
dc.subject.keywordPlus | Strongest acid | - |
dc.subject.keywordPlus | TiO$-2$ | - |
dc.subject.keywordPlus | TiO2 photocatalyst | - |
dc.subject.keywordPlus | Ventilation systems | - |
dc.subject.keywordPlus | Nitrogen oxides | - |
dc.relation.journalResearchArea | Construction & Building Technology | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Construction & Building Technology | - |
dc.relation.journalWebOfScienceCategory | Engineering, Environmental | - |
dc.relation.journalWebOfScienceCategory | Engineering, Civil | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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