Can concrete benches be coated with photocatalytic materials for air purification?

Concrete benches, a common feature in urban landscapes, can indeed be coated with photocatalytic materials to enhance air purification. Photocatalytic coatings, typically containing titanium dioxide (TiO2), react with sunlight to break down pollutants like nitrogen oxides (NOx) and volatile organic compounds (VOCs) into harmless substances.

This innovative approach transforms ordinary benches into eco-friendly structures that contribute to cleaner air in cities. The process is simple: when UV light hits the coated surface, it triggers a chemical reaction that neutralizes airborne pollutants.

Benefits include:

- Improved air quality in high-traffic areas like parks and bus stops.

- Low maintenance, as the coating remains effective for years.

- Sustainability, aligning with green urban planning goals.

While initial costs may be higher, long-term environmental and health benefits make photocatalytic concrete benches a promising solution for modern cities.