Ultrathin Carbon Nitride with Atomic-Level Intraplane Implantation of Graphited Carbon Ring Domain for Superior Photocatalytic Activity in the Visible/Near-Infrared Region

作者：Song, Ting; Zeng, Gongchang; Zhang, Piyong; Wang, Tingting; Huang, Shaobin; Zeng, Heping^*

来源：ACS Sustainable Chemistry and Engineering, 2019, 7(1): 1239-1249.

DOI：10.1021/acssuschemeng.8b04911

• Graphitic carbon nitride
• Hydrogen production
• Vis-NIR
• Intraplane implantation
• Interplane decoration

Efficient photocarrier transfer and sufficient light absorption play a crucial role in improving photocatalytic H-2 evolution activity. Hence, we report a conceptual design of an ultrathin carbon nitride intraplane implanted with graphited carbon ring domain (CN-GP) via thermal polymerization of polyvinyl butyral and melamine membrane, displaying obvious disparities in the decoration type compared with the adsorption of graphene on the bulk g-C3N4 surface. This unique intraplane heterostructural CN-GP can greatly sheathe the visible/near-infrared light range, expedite electron-hole pair separation, and weaken the barrier of the photocarrier transfer through their suitable energy band structures and in-built electric felds. Consequently, the CN-GP displayed remarkable photocatalytic activity under visible/near-infrared illumination by acquiring a H-2 production rate of 11.33 mmol g(-1) h(-1) and even showed near-infrared-driven photocatalytic activity. This work presents an effective method for the rational fabrication of g-C3N4-based materials for broad-spectrum-driven photocatalysis.

• 出版日期2019-1-7
• 单位华南理工大学