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Preparation of g-C3N4/Ta2O5 Composites with Enhanced Visible-Light Photocatalytic Activity

Title
Preparation of g-C3N4/Ta2O5 Composites with Enhanced Visible-Light Photocatalytic Activity
Authors
Vien VoNguyen Van KimNguyen Thi Viet NgaNguyen Tien TrungLe Truong GiangPham Van HanhLuc Huy HoangKim, Sung-Jin
Ewha Authors
김성진Vo Vien
SCOPUS Author ID
김성진scopus
Issue Date
2016
Journal Title
JOURNAL OF ELECTRONIC MATERIALS
ISSN
0361-5235JCR Link1543-186XJCR Link
Citation
vol. 45, no. 5, pp. 2334 - 2340
Keywords
g-C3N4Ta2O5ureaphotocatalystmethylene
Publisher
SPRINGER
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
g-C3N4/Ta2O5 composites have been synthesized by a facile route in which mixtures of Ta2O5 and urea are heated at various temperatures of 450A degrees C, 500A degrees C, and 550A degrees C. The obtained materials (denoted as CN/TaO-T, where T is the heating temperature) were characterized using x-ray diffraction analysis, scanning electron microscopy, transmission electron microscopy, infrared spectroscopy, diffuse-reflectance ultraviolet-visible (UV-Vis) spectroscopy, thermogravimetric analysis, and x-ray photoelectron spectroscopy. The results show that the as-prepared composites are in orthorhombic Ta2O5 phase coated by g-C3N4. The photocatalytic activity of the composites was evaluated by photodegradation of methylene blue under visible light. Among the three materials, CN/TaO-500 exhibited the highest photocatalytic activity. The improved photocatalytic activity of the g-C3N4/Ta2O5 composites is attributed to the presence of g-C3N4 in the materials.
DOI
10.1007/s11664-015-4280-9
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자연과학대학 > 화학·나노과학전공 > Journal papers
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