Template-induced high-crystalline g-C3N4 nanosheets for enhanced photocatalytic H2 evolution

Template-induced high-crystalline g-C3N4 nanosheets for enhanced photocatalytic H2 evolution

High-crystalline g-C3N4 nanosheets (HC−CN) with reduced structural defects have been constructed through Ni-foam-induced thermal condensation because Ni-foam not only serves as a template for deposition of the 2D g-C3N4 nanosheets with high surface area to prevent stacking of g-C3N4 nanosheets but a...

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Bibliographic Details
Main Authors: Xing, Weinan, Tu, Wenguang, Han, Zhonghui, Hu, Yidong, Meng, Qingqiang, Chen, Gang
Other Authors: School of Chemical and Biomedical Engineering
Format: Article
Language:English
Published: 2020
Subjects:
Engineering::Chemical engineering
Photocatalysts
Two Dimensional Materials
Online Access:https://hdl.handle.net/10356/139192
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Institution: Nanyang Technological University
Language: English
Description
Summary:High-crystalline g-C3N4 nanosheets (HC−CN) with reduced structural defects have been constructed through Ni-foam-induced thermal condensation because Ni-foam not only serves as a template for deposition of the 2D g-C3N4 nanosheets with high surface area to prevent stacking of g-C3N4 nanosheets but also acts as a catalyst to promote the polymerization and crystallization of g-C3N4 via effective dehydrogenation of the −NH2 group. The obtained HC–CN exhibits superior photocatalytic performance for H2 evolution under visible light irradiation (λ > 400 nm), which significantly benefits from the prolonged lifetime of photogenerated charge carriers and the increase of the transfer path within 2D structures of high-crystalline g-C3N4 nanosheets.

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