Photocatalytic Performance of Alkaline Activated Graphitic Carbon Nitride Under Blue LED Light

Graphitic carbon nitride (g-C3N4) is a metal-free photocatalyst with visible light response. However, the disadvantages limit its application in wider range, such as small specific surface areas, fewer active sites, narrow absorption range and high photogenic carrier recombination. In this paper, NaOH was used activator for alkaline activation of g-C3N4. The phase composition, micromorphology, chemical state optical properties g-C3N4 after were tested. photocatalytic performance over organic dyes also results showed that Na+ entered interlayers g-C3N4, expanding spaces between layers. area pore volume powder increased. sites band gap decreased, recombination reduced. Alkaline activated had better adsorption degradation rhodamine B methyl orange than inactivated Therefore, promotes further field wastewater treatment. This work sheds on material modification through simple method aim to efficiently use solar energy.