Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 3, Issue 12, Pages 6565-6574Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ta00764j
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Nanostructured TiO2/ZnO heterojunctions with the morphologies of hedgehogs and fan blades were synthesized by a solvothermal method and characterized by means of XRD, SEM, TEM, BET, FT-IR, Raman, XPS, UV-vis and PL diffuse reflection spectroscopy. The photocatalytic activities of both TiO2/ZnO hedgehogs and fan blades for the degradation of methyl orange (MO) were explored under UV light; the hedgehogs exhibited the best photocatalytic activity (97% MO degradation within 30 min) owing to the hierarchical nanostructure with a large surface area. The degradation mechanism is discussed based on the band structure. Both heterojunctions are very promising for the degradation of MO from organic dyestuff in engineering practice.
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