Photocatalysis

Photocatalysis is a process where a substance called a photocatalyst, often a material like titanium dioxide, uses light energy (usually sunlight) to trigger chemical reactions. When exposed to light, the photocatalyst creates energized particles that can break down pollutants, bacteria, or other harmful substances on surfaces or in the air. This process is environmentally friendly, as it can clean pollutants without the need for harsh chemicals, and it’s used in applications like air and water purification, self-cleaning surfaces, and pollution control.