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Fabrication and performance analysis of a photocatalytic self-cleaning superhydrophobic coating for cement-based exterior wall materials
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DOI：10.1080/20550340.2025.2585664.png)
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Abstract
En 中文
To address the issues of low photocatalytic efficiency and poor hydrophobic durability of traditional coatings. A photocatalytic self-cleaning superhydrophobic coating was prepared by compounding anatase TiO2 with silane reagents and SiO2, and using the sol-gel method combined with a hydrothermal synthesis process. Performance tests show that the photocatalytic degradation efficiency of this coating reaches 96.7%, the contact Angle is maintained above 140 degrees, the mass loss is only 0.5% after 28 days of acid and alkali erosion, the composition contents of O, Si, Ti and C elements are 51.2%, 21.6%, 16.4% and 10.2% respectively, and the pore size is 10.1 nm. The specific surface area is 16.4 m2 /g. This coating, through the coupling of photocatalysis and superhydrophobic properties, achieves the optimization of long-term self-cleaning, corrosion resistance, anti-aging and durability of building exterior wall materials.
Keywords:
Cement-based
photocatalysis
self-cleaning
superhydrophobic coating
anatase titanium dioxide
green building
corrosion resistance
anti aging
Journal
A
IF:
2.2
Papers:
17
Citations:
0
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