Cryo-induced closely bonded heterostructure for effective CO2 conversion: The case of ultrathin BP nanosheets/g-C3N4

Publication date: Available online 23 January 2020Source: Journal of Energy ChemistryAuthor(s): Guli Zhou, Jinman Yang, Xingwang Zhu, Qidi Li, Wiam El-alami, Chongtai Wang, Yuanbin She, Junchao Qian, Hui Xu, Huaming LiAbstractBlack phosphorus (BP), an interesting and multi-functional non-metal material, has attracted widespread attention. In this work, 2D BP/2D g-C3N4 heterostructure had been fabricated at extremely low temperature, which was used to reduce CO2 for the first time. With introduction of 2D BP, the separation of photogenerated holes and electrons was extremely boosted, and composites showed excellent photocatalytic performance (CO2 to CO). Meanwhile, the composite (15% FPCN) could keep high selectivity for CO generation and CO generation rate can be up to 187.7 μmol g−1 h−1. The formation process of the unique heterostructure and the key factor affecting the photocatalytic performance were also discussed. This work provides a new approach for designing metal free photocatalyst, which is used for CO2 reduction.Graphical AbstractCryo-induced closely bonded 2D BP/2D g-C3N4 heterostructure had been prepared. And for the first time, it was used to capture CO2, which can effectively and stably convert CO2 to CO.
Source: Journal of Energy Chemistry - Category: Chemistry Source Type: research