关键字：Light;Charge transfer - Complexation - Copper oxides - Magnetic moments - Photocatalysis - Photocatalysts;Charge separations - Charge transfer mechanisms - Charge-transfer mediator - Cu2O/Cu/g-C3N4 - Photocatalytic activities - Visible light - Visible-light irradiation - Visible-light-driven
摘要：The novel Cu<inf>2</inf>O/Cu/g-C<inf>3</inf>N<inf>4</inf>composites were successfully synthesized via one step reduction method in the presence of g-C<inf>3</inf>N<inf>4</inf>. Under visible light irradiation, the Cu<inf>2</inf>O/Cu/g-C<inf>3</inf>N<inf>4</inf>composites exhibited higher photocatalytic activity than g-C<inf>3</inf>N<inf>4</inf>and Cu/Cu<inf>2</inf>O, and the 20 at% Cu<inf>2</inf>O/Cu/g-C<inf>3</inf>N<inf>4</inf>photocatalyst displayed the highest photocatalytic activity. The enhanced photcatalytic mechanism was investigated by radical-trapping and electron spin resonance experiments. A Z-scheme charge transfer mechanism was proposed, in which metallic Cu particles acted as charge separation center. This work could provide some insight into the design of novel Z-scheme photocatalyst with metallic Cu particles as a charge transfer mediator. © 2017 Elsevier B.V.
卷号：432
期号：1
是否译文：否