Heterogeneous lollipop-like V2O5/ZnO array: A promising composite nanostructure for visible light photocatalysis

C W Zou, Y F Rao, A Alyamani, W Chu, M J Chen, Darrell A Patterson, Emma A C Emanuelsson, W Gao

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Abstract

ZnO/V2O5 core−shell nanostructures have been prepared by a two-step synthesis route through combined hydrothermal growth and magnetron sputtering. After annealing under oxygen ambience, a ZnO/V2O5 heterogeneous lollipop-like nanoarray formed. The microstructure and crystal orientation of those nanolollipops were investigated by scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HRTEM), which show single crystal structure. The optical properties were characterized by UV−vis spectroscopy and showed quite different absorption curves for the as-deposited and annealed samples. The ZnO/V2O5 nanolollipops demonstrated excellent photocatalytic activity in terms of decomposing 2,6-dichlorophenol (2,6-DCP) under visible light, indicating their promising potential as catalysts for industrial wastewater and soil pollution treatments.
Original languageEnglish
Pages (from-to)11615-11620
Number of pages6
JournalLangmuir
Volume26
Issue number14
DOIs
Publication statusPublished - 2010

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    Zou, C. W., Rao, Y. F., Alyamani, A., Chu, W., Chen, M. J., Patterson, D. A., Emanuelsson, E. A. C., & Gao, W. (2010). Heterogeneous lollipop-like V2O5/ZnO array: A promising composite nanostructure for visible light photocatalysis. Langmuir, 26(14), 11615-11620. https://doi.org/10.1021/la101324e