1. Graphitic g-C3N4-WO3Composite: Synthesis and Photocatalytic Properties
- Author
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Viet Nga Nguyen Thi, Phi Hung Nguyen, An Tran Doan, Vien Vo, Sung Jin Kim, and Xuan Dieu Nguyen Thi
- Subjects
Materials science ,Composite number ,General Chemistry ,law.invention ,chemistry.chemical_compound ,chemistry ,Chemical engineering ,X-ray photoelectron spectroscopy ,law ,Photocatalysis ,Calcination ,Orthorhombic crystal system ,Photodegradation ,Melamine ,Visible spectrum - Abstract
Graphitic g-C3N4-WO3 composite was synthesized simply by decomposing melamine in the presence of WO3 at 500 o C. The obtained material was characterized by XRD, SEM, IR and XPS. The results showed that the as-prepared composite exhibits orthorhombic WO3 phase coated by g-C3N4 and the g-C3N4 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 nitrogendoped WO3 was observed, which can be attributed to the presence of g-C3N4 in the material.
- Published
- 2014