Baking 'crumbly' carbon nitrides with improved photocatalytic properties using ammonium chloride

摘要

Ammonium chloride can serve as a green, unreactive and reusable template to prepare heptazine-based graphitic carbon nitrides with surface areas up to 30 m(2) g(-1) and up to 6 times higher photocatalytic activity, by a simplified procedure that comprises only pyrolysis of the reaction mixture containing precursor and salt.