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High-efficiency photoelectrochemical performance of PbS nanoparticles sensitized TiO2 nanotube arrays

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Abstract

TiO2 nanotube arrays sensitized by PbS nanoparticles (TiO2 NTs/PbS) with enhanced visible-light activity were synthesized by a two-step approach including an electrochemical anodization technique followed by an in situ photodeposition approach. The structural investigations indicated that PbS nanoparticles grew uniformly on the walls of the TiO2 NTs. The TiO2 NTs/PbS exhibited more excellent photoelectrochemical properties than that of the TiO2 NTs under visible-light irradiation. The enhanced photoelectrochemical activity of the TiO2 NTs/PbS could be attributed to the improvement of visible-light absorption and charge separation derived from the coupling effect of the PbS nanoparticles and TiO2 NTs.

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Acknowledgments

This work was financially supported by the Science and Technology Development Project of Jilin Province (No. 20140520161JH).

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Authors and Affiliations

  1. College of Horticulture, Jilin Agricultural University, Changchun, 130118, People’s Republic of China

    Jianlei Qiao

  2. School of Chemistry and Materials Science, Ludong University, Yantai, 264025, People’s Republic of China

    Qingyao Wang

  3. Key Laboratory of Bionic Engineering (Ministry of Education), Jilin University, Changchun, 130022, People’s Republic of China

    Yingkui Xiao

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  1. Jianlei Qiao
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  2. Qingyao Wang
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  3. Yingkui Xiao
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Correspondence to Qingyao Wang.

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Qiao, J., Wang, Q. & Xiao, Y. High-efficiency photoelectrochemical performance of PbS nanoparticles sensitized TiO2 nanotube arrays. J Appl Electrochem 44, 1007–1011 (2014). https://doi.org/10.1007/s10800-014-0725-8

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  • DOI: https://doi.org/10.1007/s10800-014-0725-8

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