Jump to main content
Jump to site search


Facile synthesis of highly fluorescent free-standing films comprising of graphitic carbon nitride (g-C3N4) nanolayers

Abstract

Astounding graphitic carbon nitride (g-C3N4) nanostructures have attracted huge attention due to its unique electronic structures, suitable band gap, thermal and chemical stability insinuating as a promising candidate for photocatalytic and energy harvesting applications. Growth of a free standing film is desirable for widespread electronic devices and electrochemical applications. Here we present a facile approach to prepare free-standing films (15mm × 10mm × 0.5mm) comprising of g-C3N4 nanolayers by the pyrolysis of dicyandiamide (C2H4N4) utilizing chemical vapor deposition (CVD) technique. The synthesis is done under low-pressure conditions of Argon ( ̴ 3 Torr) and at a temperature of 600 0C. The as-synthesized g-C3N4 films are systematically studied for their structural/microstructural characterization by using X-ray diffraction (XRD), scanning & transmission electron microscopy (SEM and TEM), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR) and UV-visible spectroscopy techniques. Excitation dependent photoluminescence (PL) spectra of the as-synthesized g-C3N4 film exhibit an intense, stable and broad emission peak in the visible region ~ 459 nm. The free standing g-C3N4 films emission spectra shows a blue shift and band sharpening as compared to the g-C3N4 powder.

Back to tab navigation

Supplementary files

Article information


Submitted
10 Oct 2019
Accepted
04 Jan 2020
First published
06 Jan 2020

New J. Chem., 2020, Accepted Manuscript
Article type
Paper

Facile synthesis of highly fluorescent free-standing films comprising of graphitic carbon nitride (g-C3N4) nanolayers

R. M. Yadav, R. Kumar, A. Aliyan, P. S. DOBAL, S. Biradar, R. Vajtai, D. P. Singh, A. A. Marti and P. M. Ajayan, New J. Chem., 2020, Accepted Manuscript , DOI: 10.1039/C9NJ05108B

Social activity

Search articles by author

Spotlight

Advertisements