Enhanced Photocatalytic Degradation Performance of Antibiotics Using Magadiite-Supported Carbon Nitride Under Visible Light Irradiation

A new template with no need for removing was presented in this work. Magadiite-supported carbon nitride (MAG/CN) was fabricated by thermal polymerization of the mixture of magadiite substrate and melamine. The photocatalytic performance of the obtained MAG/CN was dramatically enhanced with the coexistence of magadiite (MAG) substrate because the presence of a MAG matrix restrained the polycondensation and re-stacking of carbon nitride nanosheets, which was favorable for light absorption. Meanwhile, the cyano groups were introduced on the surface of the composites. The improved specific surface area and the introduced cyano groups are responsible for the marvelous enhanced photocatalytic activity. As expected, MAG/CN-1:1 displayed excellent photocatalytic performance and reusability for degrading Tetracycline hydrochloride (TC) under visible light.

Automated summary

A new template, MAG/CN, was developed by thermal polymerization of a mixture of magadiite substrate and melamine, showing improved photocatalytic performance and reusability in degrading TC under visible light. The presence of MAG substrate restrained polycondensation and re-stacking of carbon nitride nanosheets, leading to enhanced light absorption and overall photocatalytic activity. The introduction of cyano groups and increased specific surface area also played a crucial role in the enhanced photocatalytic activity of MAG/CN.