Graphitic g-C3N4-WO3 composite: Synthesis and photocatalytic properties

An Tran Doan, Xuan Dieu Nguyen Thi, Phi Hung Nguyen, Viet Nga Nguyen Thi, Sung Jin Kim, Vien Vo

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Graphitic g-C3N4-WO3 composite was synthesized simply by decomposing melamine in the presence of WO3 at 500 °C. The obtained material was characterized by XRD, SEM, IR and XPS. The results showed that the as-prepared composite exhibits orthorhombic WO 3 phase coated by g-C3N4 and the g-C 3N4 decomposed completely with N-doped WO3 remaining at elevated calcination temperatures. The photocatalytic activity of the composite was evaluated by the photodegradation of methylene blue under visible light. An enhancement in photocatalytic activity for the graphitic g-C3N4-WO3 composite compared to the conventional nitrogen-doped WO3 was observed, which can be attributed to the presence of g-C3N4 in the material.

Original languageEnglish
Pages (from-to)1794-1798
Number of pages5
JournalBulletin of the Korean Chemical Society
Issue number6
StatePublished - 20 Jun 2014


  • Degradation of methylene blue
  • Melamine
  • Photocatalysis
  • Tungsten oxide


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