POS5-0214

Two-dimensional C3N4 nanoplatelets produced by unzipping of C3N4 nanotubes

Topic

S5. Polymers for Electronics and Photonics

When and Where

Oct 1, 2026 08:30 - 09:30

Room 301 (Grand Ballroom)

Session Chairs

Jinkee HONG

Ki Su KIM

Presenter(s)

bogyeong Kim (INHA University)

Co-Author(s)

No co-authors

Abstract

In this study, two-dimensional (2D) carbon nitride (C₃N₄) nanosheets (Un-CN) were synthesized via unzipping of one-dimensional (1D) C₃N₄nanotubes (Tu-CN) through acid treatment, and their photocatalytic and electrocatalytic performances were systematically evaluated. Un-CN exhibited excellent dispersibility in various aqueous and organic solvents. Comprehensive structural, photophysical, and electrochemical characterizations revealed that Un-CN possesses a suitable band structure for visible-light absorption, blue photoluminescence, prolonged charge-carrier lifetimes, low interfacial charge-transfer resistance, and efficient in-plane charge transport along the C₃N₄ network. These features effectively promoted charge separation and transport, leading to markedly enhanced catalytic performance. Photocatalytic activity was evaluated through the degradation of Rhodamine B under visible-light irradiation, where Un-CN showed superior efficiency and stability compared to bulk CN (MCN) and Tu-CN counterparts. Furthermore, Un-CN demonstrated outstanding electrocatalytic activities for hydrogen and oxygen evolution reactions without the incorporation of any metallic co-catalysts. This work demonstrates that metal-free platform for advanced photocatalytic and electrocatalytic applications

Reference
[1] Dawoon Jang, Sangjoon Park, Seungjoo Choi, Jeongho Kim, and Sungjin Park,Two-step process to produce porous carbon nitrides as efficient photocatalysts to degrades organic pollutants. J. Photochem. Photobiol. A 2023, 443, 114840

Back to List