SYNTHESIS OF A MESOPOROUS THREE DIMENSIONAL CARBON NITRIDE DERIVED FROM CYANAMIDE AND ITS USE IN THE KNOEVENAGEL REACTION

摘要

Mesoporous graphitic carbon nitride (MGCN) materials and method of making said MGCN materials is described. The MGCN materials include a three dimensional cyanamide based carbon nitride matrix having tunable pore diameters, a pore volume between 0.40 and 0.80 cm³g^-1, and a surface area of 195 to 300 m²gm^-1. The matrix comprises sheets of three dimensionally arranged s-heptazine (tri- s-triazine) units. The MGCN materials are used as catalysts in aldol condenstation reactions, in particular Knoevenagel reactions. The mesoporous structure is obtained by means of a silica template like KIT-6, which is removed after polymerisation of the cyanamide monomers.