Empirical NOx Removal Analysis of Photocatalytic Construction Materials at Real-Scale
The NOx removal performance of photocatalytic construction materials is demonstrated using two experiments under indoor and outdoor environments: (1) A photoreactor test was conducted to assess the NO removal performance of construction materials (e.g., coatings, paints and shotcrete) using a modifi...
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MDPI AG
2021-09-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/14/19/5717 |
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| author | Miyeon Kim Hyunggeun Kim Jinchul Park |
| author_facet | Miyeon Kim Hyunggeun Kim Jinchul Park |
| author_sort | Miyeon Kim |
| collection | DOAJ |
| description | The NOx removal performance of photocatalytic construction materials is demonstrated using two experiments under indoor and outdoor environments: (1) A photoreactor test was conducted to assess the NO removal performance of construction materials (e.g., coatings, paints and shotcrete) using a modified ISO 22197-1 method; (2) A water washing test was conducted using two specimens enlarged to the size of actual building materials and artificially exposed to NOx in a laboratory to analyze NOx removal performance. For (1), the UV irradiation of the outdoor environment was analyzed and the experiment was conducted in an indoor laboratory under UV irradiation identical to that of the outdoor condition. Photoreactor tests were conducted on construction materials applied to actual buildings located in Seoul, South Korea. In (2), the enlarged specimen was used for a field experiment by applying a modified method from the ISO 22197-1 standard. On sunny days, the NOx removal performance (3.12–4.76 μmol/150 cm<sup>2</sup>·5 h) was twice as much as that of the ISO 22197-1 standard specification (2.03 μmol/150 cm<sup>2</sup>·5 h) in the real-world. The washing water test results indicated that general aqueous paint achieved a NOx removal of 3.88 μmol, whereas photocatalytic paint was superior to 14.13 μmol. |
| first_indexed | 2024-03-10T06:55:41Z |
| format | Article |
| id | doaj.art-16d0b3df677b4b41b0b97d460d06f7f4 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T06:55:41Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
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| series | Materials |
| spelling | doaj.art-16d0b3df677b4b41b0b97d460d06f7f42023-11-22T16:25:52ZengMDPI AGMaterials1996-19442021-09-011419571710.3390/ma14195717Empirical NOx Removal Analysis of Photocatalytic Construction Materials at Real-ScaleMiyeon Kim0Hyunggeun Kim1Jinchul Park2SH Urban Research Center, Seoul Housing and Communities Corporation, Seoul 06336, KoreaSH Urban Research Center, Seoul Housing and Communities Corporation, Seoul 06336, KoreaDepartment of Architectural Engineering, Chung-Aug University, Seoul 06974, KoreaThe NOx removal performance of photocatalytic construction materials is demonstrated using two experiments under indoor and outdoor environments: (1) A photoreactor test was conducted to assess the NO removal performance of construction materials (e.g., coatings, paints and shotcrete) using a modified ISO 22197-1 method; (2) A water washing test was conducted using two specimens enlarged to the size of actual building materials and artificially exposed to NOx in a laboratory to analyze NOx removal performance. For (1), the UV irradiation of the outdoor environment was analyzed and the experiment was conducted in an indoor laboratory under UV irradiation identical to that of the outdoor condition. Photoreactor tests were conducted on construction materials applied to actual buildings located in Seoul, South Korea. In (2), the enlarged specimen was used for a field experiment by applying a modified method from the ISO 22197-1 standard. On sunny days, the NOx removal performance (3.12–4.76 μmol/150 cm<sup>2</sup>·5 h) was twice as much as that of the ISO 22197-1 standard specification (2.03 μmol/150 cm<sup>2</sup>·5 h) in the real-world. The washing water test results indicated that general aqueous paint achieved a NOx removal of 3.88 μmol, whereas photocatalytic paint was superior to 14.13 μmol.https://www.mdpi.com/1996-1944/14/19/5717photocatalysisconstruction materialsISO22197-1titanium dioxide (TiO<sub>2</sub>)nitrogen oxides (NOx) |
| spellingShingle | Miyeon Kim Hyunggeun Kim Jinchul Park Empirical NOx Removal Analysis of Photocatalytic Construction Materials at Real-Scale Materials photocatalysis construction materials ISO22197-1 titanium dioxide (TiO<sub>2</sub>) nitrogen oxides (NOx) |
| title | Empirical NOx Removal Analysis of Photocatalytic Construction Materials at Real-Scale |
| title_full | Empirical NOx Removal Analysis of Photocatalytic Construction Materials at Real-Scale |
| title_fullStr | Empirical NOx Removal Analysis of Photocatalytic Construction Materials at Real-Scale |
| title_full_unstemmed | Empirical NOx Removal Analysis of Photocatalytic Construction Materials at Real-Scale |
| title_short | Empirical NOx Removal Analysis of Photocatalytic Construction Materials at Real-Scale |
| title_sort | empirical nox removal analysis of photocatalytic construction materials at real scale |
| topic | photocatalysis construction materials ISO22197-1 titanium dioxide (TiO<sub>2</sub>) nitrogen oxides (NOx) |
| url | https://www.mdpi.com/1996-1944/14/19/5717 |
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