Metal-Free 2D/2D van der Waals Heterojunction Based on Covalent Organic Frameworks for Highly Efficient Solar Energy Catalysis

Abstract

Highlights It is the first attempt to combine covalent organic frameworks with hexagonal boron nitride (h-BN) to construct efficient metal-free photocatalyst. The composite displays superior photocatalytic hydrogen production performance in metal-free systems. The integrated porous h-BN can suppress electron backflow to optimize the composite photocatalytic activity.

Keywords

• Covalent organic frameworks
• 2D/2D van der Waals heterojunction
• Metal-free photocatalyst