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Preparation, characterization and photocatalytic behavior of WO3-fullerene/TiO2 catalysts under visible light.

Meng ZD, Zhu L, Choi JG, Park CY, Oh WC - Nanoscale Res Lett (2011)

Bottom Line: The composite obtained was characterized by BET surface area measurements, X-ray diffraction, scanning electron microscopy, energy dispersive X-ray analysis, transmission electron microscopy, and UV-vis analysis.Excellent photocatalytic degradation of a MO solution was observed using the WO3-fullerene, fullerene-TiO2, and WO3-fullerene/TiO2 composites under visible light.An increase in photocatalytic activity was observed, and WO3-fullerene/TiO2 has the best photocatalytic activity; it may attribute to the increase of the photo-absorption effect by the fullerene and the cooperative effect of the WO3.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Advanced Materials Science & Engineering, Hanseo University, Seosan, Chungnam, 356-706, South Korea. wc_oh@hanseo.ac.kr.

ABSTRACT
WO3-treated fullerene/TiO2 composites (WO3-fullerene/TiO2) were prepared using a sol-gel method. The composite obtained was characterized by BET surface area measurements, X-ray diffraction, scanning electron microscopy, energy dispersive X-ray analysis, transmission electron microscopy, and UV-vis analysis. A methyl orange (MO) solution under visible light irradiation was used to determine the photocatalytic activity. Excellent photocatalytic degradation of a MO solution was observed using the WO3-fullerene, fullerene-TiO2, and WO3-fullerene/TiO2 composites under visible light. An increase in photocatalytic activity was observed, and WO3-fullerene/TiO2 has the best photocatalytic activity; it may attribute to the increase of the photo-absorption effect by the fullerene and the cooperative effect of the WO3.

No MeSH data available.


EDX elemental microanalysis of WO3-fullerene, fullerene-TiO2, and WO3-fullerene/TiO2.
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Figure 1: EDX elemental microanalysis of WO3-fullerene, fullerene-TiO2, and WO3-fullerene/TiO2.

Mentions: Figure 1 shows the EDX patterns of the WO3-treated fullerene, fullerene-supported TiO2, and WO3-fullerene/TiO2. EDX indicated C, O, Ti, and W as the major elements in the composites. Table 2 lists the numerical results of EDX quantitative microanalysis of the samples. Figure 1c shows the presence of C, O, and Ti, as major elements with strong W peaks. There were some small impurities, which were attributed to the use of fullerene without purification. In most samples, carbon and titanium were present as major elements with small quantities of oxygen in the composite.


Preparation, characterization and photocatalytic behavior of WO3-fullerene/TiO2 catalysts under visible light.

Meng ZD, Zhu L, Choi JG, Park CY, Oh WC - Nanoscale Res Lett (2011)

EDX elemental microanalysis of WO3-fullerene, fullerene-TiO2, and WO3-fullerene/TiO2.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3211879&req=5

Figure 1: EDX elemental microanalysis of WO3-fullerene, fullerene-TiO2, and WO3-fullerene/TiO2.
Mentions: Figure 1 shows the EDX patterns of the WO3-treated fullerene, fullerene-supported TiO2, and WO3-fullerene/TiO2. EDX indicated C, O, Ti, and W as the major elements in the composites. Table 2 lists the numerical results of EDX quantitative microanalysis of the samples. Figure 1c shows the presence of C, O, and Ti, as major elements with strong W peaks. There were some small impurities, which were attributed to the use of fullerene without purification. In most samples, carbon and titanium were present as major elements with small quantities of oxygen in the composite.

Bottom Line: The composite obtained was characterized by BET surface area measurements, X-ray diffraction, scanning electron microscopy, energy dispersive X-ray analysis, transmission electron microscopy, and UV-vis analysis.Excellent photocatalytic degradation of a MO solution was observed using the WO3-fullerene, fullerene-TiO2, and WO3-fullerene/TiO2 composites under visible light.An increase in photocatalytic activity was observed, and WO3-fullerene/TiO2 has the best photocatalytic activity; it may attribute to the increase of the photo-absorption effect by the fullerene and the cooperative effect of the WO3.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Advanced Materials Science & Engineering, Hanseo University, Seosan, Chungnam, 356-706, South Korea. wc_oh@hanseo.ac.kr.

ABSTRACT
WO3-treated fullerene/TiO2 composites (WO3-fullerene/TiO2) were prepared using a sol-gel method. The composite obtained was characterized by BET surface area measurements, X-ray diffraction, scanning electron microscopy, energy dispersive X-ray analysis, transmission electron microscopy, and UV-vis analysis. A methyl orange (MO) solution under visible light irradiation was used to determine the photocatalytic activity. Excellent photocatalytic degradation of a MO solution was observed using the WO3-fullerene, fullerene-TiO2, and WO3-fullerene/TiO2 composites under visible light. An increase in photocatalytic activity was observed, and WO3-fullerene/TiO2 has the best photocatalytic activity; it may attribute to the increase of the photo-absorption effect by the fullerene and the cooperative effect of the WO3.

No MeSH data available.