Carbon quantum dots (CQDs) has emerged as a promising research area in addressing water pollution challenges due to their non toxic nature, higher photostability and their innate photoluminescence properties. By virtue of the high biocompatibility and tunable optical properties, the applications of CQDs alone or in combination with other bulk semiconductors in the photocatalytic degradation of organic pollutants have been significant.

My current research is centered on exploring catalysis, photocatalysis and adsorption behaviour of Carbon Quantum dots (CQDs)/metal oxides  in waste water treatment. Being a highly versatile material , CQDs serves as an electron mediator, adsorption center, and sole photocatalyst with strong quantum confinement effect. The role performed by CQDs differ according to the region of light irradiation. By composting CQDs with bulk semiconductor , the optical properties of resulting composite gets tuned by extending absorption edge to the visible region. Additionally, CQDs exhibit high resistance to photo-bleaching which inhibits photo-corrosion under light irradiation, making them more photostable and durable than their metal based counterparts.