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Synthesis of hollow carbon-W18O49 composite and its photocatalytic properties

Title
Synthesis of hollow carbon-W18O49 composite and its photocatalytic properties
Authors
Park, Ji-eunVien VoNguyen Thi Vuong HoanLuc Huy HoangKim, Sung Jin
Ewha Authors
김성진박지은
SCOPUS Author ID
김성진scopus; 박지은scopus
Issue Date
2016
Journal Title
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
ISSN
0957-4522JCR Link1573-482XJCR Link
Citation
vol. 27, no. 3, pp. 2662 - 2669
Publisher
SPRINGER
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Composites of carbon and W18O49 were successfully synthesized by heating the mixtures of WO3 and urea at a temperature between 600 and 800 degrees C in inert atmosphere. The obtained materials were characterized by XRD, SEM, TEM, Raman, XPS, TG-DTA and N-2 adsorption/desorption at 77 K. The results showed that the composites consisted of W18O49 as a main phase which was coated by a thin carbon layer and exhibited a change in shape with heating temperature. The hollow form appeared from the treatment temperature of 700 degrees C and remained till 900 degrees C. However, at treatment 900 degrees C, the W18O49 disappeared and WO2 formed instead. The adsorption and visible-light photocatalytic degradation of methylene blue on the composites were evaluated.
DOI
10.1007/s10854-015-4074-0
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자연과학대학 > 화학·나노과학전공 > Journal papers
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