Synthesis of Graphitic Carbon Nitride in Porous Silica Glass

Abstract

We developed and studied facile synthesis of graphitic carbon nitride in macroporous silica glass matrix. Melamine was used as a precursor. The synthesis was performed in a closed air ambience at 400–600 °C. It was found that the synthesized material was characterized with a broadband room-temperature photoluminescence in the range of 350–750 nm with the peak shifting from to 445 nm to 702 nm when the temperature of the synthesis was increased from 400 °C to 575 °C while the intensity of the luminescence was decreased. The nature of the luminescent centers and possible applications of the synthesized material are discussed.