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http://dx.doi.org/10.5012/bkcs.2014.35.6.1794

Graphitic g-C3N4-WO3 Composite: Synthesis and Photocatalytic Properties  

Doan, An Tran (Department of Chemistry, Quy Nhon University)
Thi, Xuan Dieu Nguyen (Department of Chemistry, Quy Nhon University)
Nguyen, Phi Hung (Department of Chemistry, Quy Nhon University)
Thi, Viet Nga Nguyen (Department of Chemistry, Quy Nhon University)
Kim, Sung Jin (Department of Chemistry and Nano Science, Ewha Womans University)
Vo, Vien (Department of Chemistry, Quy Nhon University)
Publication Information
Bulletin of the Korean Chemical Society / v.35, no.6, 2014 , pp. 1794-1798 More about this Journal
Abstract
Graphitic g-$C_3N_4-WO_3$ composite was synthesized simply by decomposing melamine in the presence of $WO_3$ at $500^{\circ}C$. 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-$C_3N_4$ and the g-$C_3N_4$ decomposed completely with N-doped $WO_3$ 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-$C_3N_4-WO_3$ composite compared to the conventional nitrogen-doped $WO_3$ was observed, which can be attributed to the presence of g-$C_3N_4$ in the material.
Keywords
Tungsten oxide; Melamine; Photocatalysis; Degradation of methylene blue;
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