Effect of spatial restrictions on the photoluminescent properties of carbon-based nanostructures obtained in microwave synthesis

On the basis of "green chemistry" a simple, fast and effective synthetic method for producing photoluminescent carbon nanostructures was developed. The use of CaCO3 microparticles as microreactors makes it possible to use aqueous solutions for synthesis in a microwave oven. Microwave synthesis allows to get СNS quickly and without any complex multi-stage procedures. When comparing two syntheses (microwave and hydrothermal) to obtain photoluminescent carbon nanostructures under conditions of spatial limitation, they showed similar results. This allows the use of microwave synthesis as an alternative to obtain СNS and reduce the synthesis time to 30-60 minutes.