Hello, One of the problems of gC3N4 in the photocatalytic activity of dyes is dye absorption. Is there a solution to prevent the absorption of methylene blue by gC3N4?
Amirreza Ojagh, you will need to take care of the surface properties of the synthesised catalyst. In your question you have not elaborated the synthesis method and how you confirmed there was adsorption of the catalyst on the substrate.