Nanosized beta carbon nitride crystal through mechanochemical reaction

Nanosized beta carbon nitride (β-C 3N 4) ( a=6.4017 Å, c=2.4041 Å) has been synthesized by mechanochemical processing. The developed low-cost synthetic method facilitates the effective synthesis of nanosized β-C 3N 4 powders. The graphite powders were first milled in a ball to a nanoscale state, the...

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Bibliographic Details
Published in:Chemical physics letters 2003-02, Vol.369 (3), p.483-489
Main Authors: Yin, Long-Wei, Li, Mu-Sen, Luo, Gang, Sui, Jin-Ling, Wang, Jin-Ming
Format: Article
Language:English
Subjects:
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Nanoscale materials and structures: fabrication and characterization
Physics
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Summary:Nanosized beta carbon nitride (β-C 3N 4) ( a=6.4017 Å, c=2.4041 Å) has been synthesized by mechanochemical processing. The developed low-cost synthetic method facilitates the effective synthesis of nanosized β-C 3N 4 powders. The graphite powders were first milled in a ball to a nanoscale state, then the nanosized graphite powders were milled in the presence of the NH 3 gas. After thermal annealing in the presence of N 2 gas flow, the β-C 3N 4 is relatively stable, the shape of the β-C 3N 4 changes from flake-like to sphere-like. The rigorously acid-washed nanosized β-C 3N 4 crystal was characterized by X-ray diffraction, Fourier transformation infrared spectroscopy, Raman spectra, transmission electron microscopy and parallel recording electron energy-loss spectroscope, X-ray photoelectron spectroscopy and EDX.
ISSN:0009-2614
1873-4448
DOI:10.1016/S0009-2614(02)02044-4