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.
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