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

Published on Jan 7, 2019in ACS Sustainable Chemistry & Engineering7.632
· DOI :10.1021/ACSSUSCHEMENG.8B04911
Ting Song15
Estimated H-index: 15
(SCUT: South China University of Technology),
Gongchang Zeng6
Estimated H-index: 6
(SCUT: South China University of Technology)
+ 3 AuthorsHeping Zeng13
Estimated H-index: 13
(SCUT: South China University of Technology)
Sources
Abstract
Efficient photocarrier transfer and sufficient light absorption play a crucial role in improving photocatalytic H2 evolution activity. Hence, we report a conceptual design of ultrathin carbon nitride intra-plane 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 intra-plane 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 H2 production rate of 11.33 mmol g-1 h-1, and even showed near-infrared-drived photocatalytic activity. This work presents an effective way for the rational fabricat...
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