One-pot synthesis of magnetic graphitic carbon nitride photocatalyst with synergistic catalytic performance under visible-light irradiation

In this study, a magnetically separable g-C3N4-Fe3O4 composite with the controllable Fe3O4 component was successfully synthesized via a one-step facile and economical hydrothermal method. The results showed strong interaction existed between Fe3O4 nanoparticles and g-C3N4 sheets, meanwhile, the prepared composites exhibited superior photocatalytic activity, and high magnetic response, which had a significant effect on recovery and reuse of g-C3N4-Fe3O4 composites. More importantly, the photocatalysis material could degrade various dyes efficiently under visible-light irradiation and still exhibited an excellent photocatalytic performance after five cycles. Therefore, the g-C3N4-Fe3O4 composites synthesized by the simple synthesis process, exhibited high magnetic response and excellent photocatalytic performance, and can show broad application prospects in the field of photodegradation.