| Title: | Functional biocarbon-based coatings for wood protection and indoor air depollution |
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| Authors: | ID Zouari, Mariem (Author)
ID Marrot, Laetitia Sarah Jennifer (Author)
ID DeVallance, David Brian (Author) |
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| Files: |  URL - Source URL, visit https://doi.org/10.1016/j.buildenv.2024.111716
 PDF - Presentation file, download (2,09 MB)
MD5: 39B16032B7048D31A717D37BEEC4FBA6
 DOCX - Presentation file, download (368,01 KB)
MD5: 47F511E681BBE098C4ABF6A31DD0EB30
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  ZAG - Slovenian National Building and Civil Engineering Institute
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| Abstract: | Growing concerns about indoor air pollution heighten the need to develop depolluting materials to achieve a healthy built environment. This study developed functional coatings for wooden surfaces using 20 wt% photocatalytic biocarbon particles doped with manganese oxide (BC–MnO2) and two different coating materials (linseed oil and waterborne acrylic). The samples' surface hydrophobicity and color properties were tested before and after accelerated aging. The depolluting potential of the samples was evaluated by formaldehyde removal efficiency test in indoor conditions. Results showed that adding BC-MnO2 particles increased the hydrophobicity regardless of the coating material's type. After accelerated aging, the hydrophobicity of all samples increased, which was attributed to the curing of the oil and acrylic polymers and the increase in surface roughness eventually caused by surface damage. The color change (ΔE) was more intense in the case of uncoated wood and samples without BC-MnO2. However, the BC-MnO2-containing coatings were effective in color preservation (ΔE < 2), which was attributed to the anti-UV property of biocarbon. The BC-MnO2-containing coatings exhibited a promising formaldehyde removal efficiency of up to 24 % and 46 % for oil and acrylic samples, respectively. The combination of BC-MnO2 and acrylic material was more favourable to attracting the formaldehyde molecules, likely due to the similar polarity. The developed functional coatings exhibited an acceptable ability for wood protection and formaldehyde remediation and can be potentially used to enhance indoor air quality. |
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| Keywords: | photocatalytic wood coating, hydrophobic surface, UV protection, volatile organic compound, formaldehyde removal |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Publication date: | 03.06.2024 |
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| Publisher: | Elsevier |
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| Year of publishing: | 2024 |
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| Number of pages: | str. 1-9 |
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| Numbering: | Vol. 261, [atricle no.] 1111716 |
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| PID: | 20.500.12556/DiRROS-21381  |
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| UDC: | 630*3 |
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| ISSN on article: | 1873-684X |
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| DOI: | 10.1016/j.buildenv.2024.111716 |
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| COBISS.SI-ID: | 200191747 |
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| Copyright: | © 2024 The Authors. Published by Elsevier Ltd. |
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| Publication date in DiRROS: | 30.01.2025 |
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| Views: | 885 |
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| Downloads: | 500 |
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