Exfoliation of triazole-based C3N4.8, C3N6, and C3N7 nanosheets for efficient photocatalytic ammonia production

Ayoung Yoon; Taehoon Kim; Dokyung Kim; Young Joo Lee; Seong-Ju Hwang; In Young Kim

doi:10.1039/D4NR03639E

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Exfoliation of triazole-based C₃N_4.8, C₃N₆, and C₃N₇ nanosheets for efficient photocatalytic ammonia production†

Ayoung Yoon,‡^a Taehoon Kim,‡^b Dokyung Kim,^c Young Joo Lee,

^cd Seong-Ju Hwang

*^b and In Young Kim

*^a

Author affiliations

* Corresponding authors

^a Department of Chemistry and Nanoscience, College of Natural Sciences, Ewha Womans University, Seoul 03760, Republic of Korea
E-mail: iykim@ewha.ac.kr

^b Department of Materials Science and Engineering, College of Engineering, Yonsei University, Seoul 03722, Republic of Korea
E-mail: hwangsju@yonsei.ac.kr

^c Metropolitan Seoul Center, Korea Basic Science Institute, Seoul 03759, Republic of Korea

^d Department of Chemistry, Chung-Ang University, Seoul 06974, Republic of Korea

Abstract

Atomically thin two-dimensional nanosheets of nitrogen-rich C₃N_4.8, C₃N₆, and C₃N₇ are synthesized by sonochemical process. Despite their high nitrogen content, their triazole-based crystal structures remain intact after exfoliation. Among the present materials, the nitrogen-richest C₃N₇ nanosheets display the highest photocatalytic activity for ammonia production, highlighting the synergetic effect of composition control and exfoliation.

This article is part of the themed collection: Nanoscale 2025 Emerging Investigators

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Article information

DOI: https://doi.org/10.1039/D4NR03639E
Article type: Communication
Submitted: 05 Sep 2024
Accepted: 18 Dec 2024
First published: 18 Dec 2024
This article is Open Access

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Nanoscale, 2025, Advance Article

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Exfoliation of triazole-based C₃N_4.8, C₃N₆, and C₃N₇ nanosheets for efficient photocatalytic ammonia production

A. Yoon, T. Kim, D. Kim, Y. J. Lee, S. Hwang and I. Y. Kim, Nanoscale, 2025, Advance Article , DOI: 10.1039/D4NR03639E

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