The research progress of functional PCN‐based composite materials as photocatalysts for the removal of air pollutants is reviewed here.
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A photocatalyst can help stimulate chemical reactions that transform hazardous air contaminants into lesser harmful compounds in the presence of UV light and ...
Jul 11, 2023 ¡¤ TiO 2 -based photocatalytic building materials can keep the building surface clean, and have decontamination, antibacterial effects and so on.
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People also ask
What is the impact of visible solar light driven photocatalytic pavement on air quality improvement?
Results indicate that visible-solar-light-driven photocatalytic pavement with doped-TiO2 features a significantly higher removal efficiency of exhaust gas compared with the normal photocatalytic pavement.
What are the advantages of visible light photocatalysis?
Visible-light photocatalysis offers unique opportunities to achieve smooth and clean functionalization of organic compounds by unlocking site-specific reactivities, generally under mild reaction conditions.
What is photocatalytic self-cleaning?
In this method, a fatty acid film is applied to the sample and degraded under UV light. This changes the wetting behavior of the surface. During degradation, the water contact angle is measured as one of the indices affecting the self-cleaning activity.
How is TiO2 self-cleaning?
TiO2 coatings appear to have self-cleaning properties: When exposed to sunlight, TiO2 reacts with water to generate hydroxyl radicals, which break down organic molecules and microbes adsorbed on the sur- face. When it rains, water spreads out on the hydrophilic TiO2 coating and washes away dust and dirt.
Aug 15, 2022 ¡¤ Tiles with ¥á-Fe 2 O 3 coating showed higher photocatalytic activity, less water adsorption and less porosity compared to pristine tiles.
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(3) For outdoor air purification, it is necessary to develop high-performance visible-light-driven photocatalysts to make full use of sunlight, and a balance ...
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NASA has explored photocatalytic technologies as a means for keeping space environments such as the International Space Station clean.
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This review summarizes recent progress on photocatalytic degradation of air pollutants and categorizes them based on the types of photocatalytic materials and ...
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In the gas phase, photocatalytic oxidation of air pollutants has already been applied to decontamination, disinfection, and air purification in outdoor ...
Photocatalysts are materials that are highly oxidative when exposed to light and are used to chemically break down toxic substances and odor components.
Jul 12, 2021 ¡¤ In this study, metal-organic frameworks (MOFs) were tested as visible light-photocatalysts for air treatment. ... Distribution of volatile organic ...
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