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Preparation and characterization of graphitic carbon nitride through pyrolysis of melamine

journal contribution
posted on 2009-02-01, 00:00 authored by X Li, J Zhang, L Shen, Y Ma, Weiwei LeiWeiwei Lei, Q Cui, G Zou
Graphitic carbon nitride (g-C3N4) has been synthesized via a two-step pyrolysis of melamine (C3H6N6) at 800°C for 2 h under vacuum conditions. X-ray diffraction (XRD) patterns strongly indicate that the synthesized sample is g-C3N4. Transmission electron microscopy (TEM) and scanning electron microscopy (SEM) morphologies indicate that the product is mainly composed of graphitic carbon nitride. The stoichiometric ratio of C:N is determined to be 0.72 by elemental analysis (EA). Chemical bonding of the sample has been investigated by X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FTIR). Electron energy loss spectroscopy (EELS) verifies the bonding state between carbon and nitrogen atoms. Optical properties of the g-C3N4 were investigated by PL (photoluminescence) measurements and UV–Vis (ultraviolet–visible) absorption spectra. We suppose its luminescent properties may have potential application as component of optical nanoscale devices. Thermogravimetric analysis (TGA) and differential thermal analysis (DTA) were also performed.

History

Journal

Applied physics A : materials science and processing

Volume

94

Issue

2

Pagination

387 - 392

Publisher

Springer

Location

Heidelberg, Germany

ISSN

0947-8396

eISSN

1432-0630

Language

eng

Publication classification

C1.1 Refereed article in a scholarly journal

Copyright notice

2009, Springer-Verlag