Highly Ordered ZnO/SnO2 Heteroepitaxial Nanodendrites：Synthesis and Photocatalytic Applications

doi:10.7517/j.issn.1674-0475.2013.06.440

Abstract

Abstract:

Highly ordered ZnO-SnO₂ hierarchical nanodendrites were synthesized via a simple two-step thermal evaporation method. The SnO₂ nanowire trunks in the nanodendrites were first prepared on an alumina wafer and then used as template for the growth of the ZnO nanowire branches in the second step. Further investigation revealed that the ZnO branches with [001] direction are epitaxial grown from the (-101) crystal plane of the SnO₂ trunks with a good lattice match. Due to the large specific surface areas as well as expedite paths for the transfer of electrons provided by the special structures, the nanodendrites exhibited an effective photocatalytic activity for the degradation of methyl orange.

Key words: heterostructure, nanodendrites, epitaxy, photocatalytic

CLC Number:

LING Shi-ting, SHE Guang-wei, MU Li-xuan, SHI Wen-sheng. Highly Ordered ZnO/SnO₂ Heteroepitaxial Nanodendrites：Synthesis and Photocatalytic Applications[J]. Imaging Science and Photochemistry, 2013, 31(6): 440-447.

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Highly Ordered ZnO/SnO₂ Heteroepitaxial Nanodendrites：Synthesis and Photocatalytic Applications

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