Scientific Sessions

Photocatalysis is a process that harnesses light energy, typically from sunlight or artificial UV light, to accelerate a chemical reaction through the action of a catalyst. The catalyst, often a semiconductor such as titanium dioxide (TiO2), absorbs photons and generates electron-hole pairs that drive redox reactions. These active species can degrade organic pollutants, kill bacteria, or convert harmful gases into harmless substances, making photocatalysis a powerful and eco-friendly solution in environmental remediation. Its applications are wide-ranging and include water purification, air treatment, self-cleaning surfaces, and even solar fuel production. Unlike conventional methods, photocatalysis does not require harsh chemicals or extreme conditions, which contributes to its sustainability and minimal environmental impact.

In recent years, advancements in nanotechnology and materials science have significantly enhanced the efficiency of photocatalytic systems. Researchers have developed modified photocatalysts that respond to visible light, improving their performance under natural sunlight. Moreover, photocatalysis is gaining attention in the field of green chemistry for applications such as hydrogen generation through water splitting and CO2 reduction. These innovations not only contribute to cleaner energy but also offer promising routes to combat climate change. Despite challenges such as limited quantum efficiency and catalyst stability, ongoing research and development continue to push the boundaries of what photocatalysis can achieve, positioning it as a cornerstone in the transition to sustainable and clean technologies.