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dc.contributor.authorYuan, Yanwenen
dc.contributor.authorZhang, Luluen
dc.contributor.authorXing, Junen
dc.contributor.authorUtama, M. Iqbal Baktien
dc.contributor.authorLu, Xinen
dc.contributor.authorDu, Kezhaoen
dc.contributor.authorLi, Yongmeien
dc.contributor.authorHu, Xiaoen
dc.contributor.authorWang, Shijieen
dc.contributor.authorGenç, Azizen
dc.contributor.authorDunin-Borkowski, Rafalen
dc.contributor.authorArbiol, Jordien
dc.contributor.authorXiong, Qihuaen
dc.identifier.citationYuan, Y., Zhang, L., Xing, J., Utama, M. I. B., Lu, X., Du, K., et al. (2015). High-yield synthesis and optical properties of g-C3N4. Nanoscale, 7(29), 12343-12350.en
dc.description.abstractGraphitic carbon nitride (g-C3N4), a metal-free semiconductor with a band gap of 2.7 eV, has received considerable attention owing to its fascinating photocatalytic performances under visible-light. g-C3N4 exhibits high thermal and chemical stability and non-toxicity such that it has been considered as the most promising photocatalyst for environmental improvement and energy conservation. Hence, it is of great importance to obtain high-quality g-C3N4 and gain a clear understanding of its optical properties. Herein, we report a high-yield synthesis of g-C3N4 products via heating of high vacuum-sealed melamine powder in an ampoule at temperatures between 450 and 650 °C. Using transmission electron microscopy (TEM), scanning transmission electron microscopy (STEM), electron energy loss spectroscopy (EELS), thermogravimetric analysis (TGA), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS), the chemical composition and crystallization of the as-produced g-C3N4 are demonstrated. A systematic optical study of g-C3N4 is carried out with several approaches. The optical phonon behavior of g-C3N4 is revealed by infrared and Raman spectroscopy, and the emission properties of g-C3N4 are investigated using photoluminescence (PL) spectroscopy, while the photocatalytic properties are explored by the photodegradation experiment.en
dc.description.sponsorshipNRF (Natl Research Foundation, S’pore)en
dc.description.sponsorshipMOE (Min. of Education, S’pore)en
dc.format.extent7 p.en
dc.rights© 2015 The Royal Society of Chemistry. This is the author created version of a work that has been peer reviewed and accepted for publication by Nanoscale, The Royal Society of Chemistry. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [].en
dc.subjectElectron microscopyen
dc.subjectPhotocatalytic performanceen
dc.titleHigh-yield synthesis and optical properties of g-C3N4en
dc.typeJournal Articleen
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen
dc.contributor.schoolSchool of Materials Science & Engineeringen
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen
dc.description.versionAccepted versionen
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