Synthesis of carbon dots from tea powder waste

Tea waste is inexpensive, easily available and sustainable carbonaceous source. The carbon derived from tea powder can be used for variety of applications. Carbon dots (CDs) are this carbon. CDs zero-dimensional carbon-based materials in the size range a few tens nano meters doped with N, S, P, B heteroatoms. They chemically modifiable to enhance render some additional functional properties. In work synthesized by carbonization method. identified exposing liquid obtained method ultraviolet light. have shown quality result photo luminescence under UV radiation.