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ZnO nanodisks decorated with Au nanorods for enhanced photocurrent generation and photocatalytic activity

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Abstract

A facile approach for the preparation of Au nanorod/ZnO nanodisks (AuNR/ZnONDKs) through in situ nucleation and growth of ZnO in AuNR colloidal solution was developed. This is the first report of AuNRs modified on the ZnO surface. Furthermore, the aspect ratios of AuNRs in nanohybrids of AuNR/ZnONDKs were also tuned to achieve tunable and broad LSPR bands for an optimized photocatalytic performance. All of the resultant AuNR/ZnONDK nanohybrids with exposed AuNRs exhibit much higher photocatalytic activity and photocurrent generation compared to commercial ZnO (C-ZnO). In particular, AuNR-707/ZnONDKs express a swift and steady photocurrent of 0.33 mA cm−2, which is 16.5 times higher than the photocurrent generated by C-ZnO. The facile approach presented here opens up a new avenue for the rational design and preparation of high-performance photocatalysts for the future applications in both environmental purification and photoelectric conversion.

Graphical abstract: ZnO nanodisks decorated with Au nanorods for enhanced photocurrent generation and photocatalytic activity

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Publication details

The article was received on 14 Oct 2017, accepted on 13 Jan 2018 and first published on 15 Jan 2018


Article type: Paper
DOI: 10.1039/C7NJ03968A
Citation: New J. Chem., 2018, Advance Article
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    ZnO nanodisks decorated with Au nanorods for enhanced photocurrent generation and photocatalytic activity

    P. She, K. Xu, Y. Shang, Q. He, S. Zeng, S. Yin, G. Lu, S. Liang, H. Sun and Z. Liu, New J. Chem., 2018, Advance Article , DOI: 10.1039/C7NJ03968A

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