In the article "Light Cleaning: Sun-activated paint cleans walls—and the surrounding air" from Scientific American, the author explores the development of a new photocatalytic paint that not only cleans itself but also reduces air pollution. This innovative paint employs titanium oxide nanoparticles that catalyze chemical reactions when exposed to ultraviolet light, breaking down pollutants in the air and preventing discoloration on surfaces. Although current photocatalytic paints are commercially available, there is skepticism regarding their long-term effectiveness and sustainability.
A recent study published in the journal *ACS Catalysis* introduces an advanced photocatalytic paint that can be activated by UV rays from ordinary sunlight, making its self-cleaning properties more practical. Researchers from the Vienna University of Technology, including Qaisar Maqbool, have created this paint using recycled materials such as industrial titanium scrap and organic waste like fallen leaves. The modified paint contains elements like phosphorus, nitrogen, and carbon, which lower the energy required for the photocatalytic reaction, allowing it to work efficiently with sunlight. Laboratory tests have shown that these modified nanoparticles can remove up to 96 percent of pollutants from the paint's surface.
However, experts like Antonio Nieto-Márquez Ballesteros from the Technical University of Madrid caution that the real-world effectiveness of this paint may differ from controlled lab results. The study’s co-authors acknowledge that their findings are preliminary and emphasize the need for further research to validate the paint's performance in actual environmental conditions. Despite the uncertainty, the study offers a promising step toward developing sustainable technologies for cleaner air and self-maintaining buildings.
PhD (IIT), MS (USA) Academician, Researcher, Environmentalist
3moBioinspired design and sustainable manufacturing are the ways to achieve SDGs. #CFBR