Fabrication of CuO/T-ZnOw nanocomposites using photo-deposition and their photocatalytic property

► Largely enhanced photocatalytic properties. ► CuO exist on the surface of T-ZnOw either as leaf-like platelets or as nano-needles. ► Both the molar ratio of Cu/Zn and the concentration of PEG have profound influence on the photocatalytic activity of the CuO/T-ZnOw nanocomposites. CuO/tetrapod-like...

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Bibliographic Details
Published in:Applied surface science 2011-12, Vol.258 (5), p.1797-1805
Main Authors: Wang, J., Fan, X.M., Wu, D.Z., Dai, J., Liu, H., Liu, H.R., Zhou, Z.W.
Format: Article
Language:English
Subjects:
COMPOSITES
Copper
COPPER OXIDE
Cu/Zn molar ratio
CuO/T-ZnOw nanocomposites
FABRICATION
MORPHOLOGY
Nanocomposites
PEG concentration
Photocatalysis
Photocatalytic property
POLYETHYLENE
Polyethylene glycol
Zinc
ZINC OXIDE
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Summary:► Largely enhanced photocatalytic properties. ► CuO exist on the surface of T-ZnOw either as leaf-like platelets or as nano-needles. ► Both the molar ratio of Cu/Zn and the concentration of PEG have profound influence on the photocatalytic activity of the CuO/T-ZnOw nanocomposites. CuO/tetrapod-like ZnO whisker (T-ZnOw) nanocomposites were successfully synthesized using a simple photo-deposition method. Some nanocomposites exhibit remarkably improved photocatalytic property, while the extents of the improvements vary with different Cu/Zn molar ratios and polyethylene glycol (PEG) concentrations. Moreover, it is found that excessively high Cu/Zn molar ratio or PEG concentration would reduce the photocatalytic property of the nanocomposites. A direct relationship between the morphology and the photocatalytic property of CuO/T-ZnOw was established and then analyzed by discussing the photocatalytic mechanism of the CuO/T-ZnOw nanocomposites.
ISSN:0169-4332
1873-5584
DOI:10.1016/j.apsusc.2011.10.048