Figure 1
From: A simple and efficient process for the synthesis of 2D carbon nitrides and related materials

Synthesis strategy schemes. (a) General synthesis of 2D materials by building units24, (b) example of monomer assembly defects, (c) example of monomer assembly defects perpendicularly to the average plane of the 2D network, (d) Fittig reaction30 and (e) confining the growth of layered materials by both a surface and a metallic salt.