promising strategy to address global warming and fossil fuel consumption. Exploring
photocatalysts with high-performance and low-cost has been two ultimate goals toward
photoreduction of CO2. Herein, noble-metal-free polyoxometalates (Co4) with oxidative
ability was first introduced into g-C3N4 resulted in inexpensive hybrid materials (Co4@ g-
C3N4) with staggered band alignment. The staggered composited materials show a higher …