Synthesis of hollow carbon-W18O49 composite and its photocatalytic properties

Ji eun Park; Vien Vo; Nguyen Thi Vuong Hoan; Luc Huy Hoang; Sung Jin Kim

doi:10.1007/s10854-015-4074-0

Synthesis of hollow carbon-W₁₈O₄₉ composite and its photocatalytic properties

Ji eun Park, Vien Vo, Nguyen Thi Vuong Hoan, Luc Huy Hoang, Sung Jin Kim

Department of Chemistry & Nanoscience

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

Composites of carbon and W₁₈O₄₉ were successfully synthesized by heating the mixtures of WO₃ and urea at a temperature between 600 and 800 °C in inert atmosphere. The obtained materials were characterized by XRD, SEM, TEM, Raman, XPS, TG–DTA and N₂ 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 °C and remained till 900 °C. However, at treatment 900 °C, the W₁₈O₄₉ disappeared and WO₂ formed instead. The adsorption and visible-light photocatalytic degradation of methylene blue on the composites were evaluated.

Original language	English
Pages (from-to)	2662-2669
Number of pages	8
Journal	Journal of Materials Science: Materials in Electronics
Volume	27
Issue number	3
DOIs	https://doi.org/10.1007/s10854-015-4074-0
State	Published - 1 Mar 2016

Bibliographical note

Publisher Copyright:
© 2015, Springer Science+Business Media New York.

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10.1007/s10854-015-4074-0

Cite this

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title = "Synthesis of hollow carbon-W18O49 composite and its photocatalytic properties",

abstract = "Composites of carbon and W18O49 were successfully synthesized by heating the mixtures of WO3 and urea at a temperature between 600 and 800 °C in inert atmosphere. The obtained materials were characterized by XRD, SEM, TEM, Raman, XPS, TG–DTA and N2 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 °C and remained till 900 °C. However, at treatment 900 °C, the W18O49 disappeared and WO2 formed instead. The adsorption and visible-light photocatalytic degradation of methylene blue on the composites were evaluated.",

author = "Park, {Ji eun} and Vien Vo and Hoan, {Nguyen Thi Vuong} and Hoang, {Luc Huy} and Kim, {Sung Jin}",

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doi = "10.1007/s10854-015-4074-0",

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T1 - Synthesis of hollow carbon-W18O49 composite and its photocatalytic properties

AU - Park, Ji eun

AU - Vo, Vien

AU - Hoan, Nguyen Thi Vuong

AU - Hoang, Luc Huy

AU - Kim, Sung Jin

PY - 2016/3/1

Y1 - 2016/3/1

N2 - Composites of carbon and W18O49 were successfully synthesized by heating the mixtures of WO3 and urea at a temperature between 600 and 800 °C in inert atmosphere. The obtained materials were characterized by XRD, SEM, TEM, Raman, XPS, TG–DTA and N2 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 °C and remained till 900 °C. However, at treatment 900 °C, the W18O49 disappeared and WO2 formed instead. The adsorption and visible-light photocatalytic degradation of methylene blue on the composites were evaluated.

AB - Composites of carbon and W18O49 were successfully synthesized by heating the mixtures of WO3 and urea at a temperature between 600 and 800 °C in inert atmosphere. The obtained materials were characterized by XRD, SEM, TEM, Raman, XPS, TG–DTA and N2 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 °C and remained till 900 °C. However, at treatment 900 °C, the W18O49 disappeared and WO2 formed instead. The adsorption and visible-light photocatalytic degradation of methylene blue on the composites were evaluated.

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