Switching the photocatalytic activity of g-C3N4 by homogenous surface chemical modification with nitrogen residues and vacancies†
Abstract
A facile two-step homogenous approach is established to produce and control the nitrogen vacancies on g-C3N4 photocatalysts. The g-C3N4 undergoes a solvothermal N2H4·H2O reduction inactivation and subsequent thermal reduction process to reactivate and achieve an enhanced photocatalytic activity toward hydrogen evolution.