Nitrogen doped carbon dot for sensing

Carbon dots (CDs) have gained significant attention in recent years as a next-generation fluorescent material, owing to their unique optical properties, excellent biocompatibility, low toxicity, and ease of synthesis. These nanoscale carbon-based materials offer an environmentally friendly and cost-effective alternative to traditional semiconductor quantum dots and organic dyes. One of the most effective ways to tailor and enhance the photoluminescence of carbon dots is through heteroatom doping, particularly with elements such as nitrogen, which can significantly improve their quantum yield and modify their electronic structure. This book explores the synthesis and nitrogen doping of carbon dots to enhance their optical properties. It highlights their characterization and application as a fluorescent nanoprobe for the selective detection of toxic Cr(VI) ions, demonstrating their potential in environmental sensing.