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Issue 62, 2016
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Hybrid nanostructures of TiO2 nanorod array/Cu2O with a CH3NH3PbI3 interlayer for enhanced photocatalytic activity and photoelectrochemical performance

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Abstract

TiO2 nanorod arrays (NRAs) filled with CH3NH3PbI3 were coated by Cu2O, which was fabricated on carbon fiber to form the photocatalyst TiO2 NRAs/CH3NH3PbI3/Cu2O. The morphology and structure of the as-obtained samples were characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The ultraviolet-visible (UV-vis) absorption measurements and photocurrent test revealed that the CH3NH3PbI3 layer can provide a greatly enhanced light harvesting efficiency. The IV curves and electrochemical impedance spectra (EIS) analysis confirmed that the TiO2 NRAs/CH3NH3PbI3/Cu2O hybrid structure favors electron transfer. The TiO2 NRAs/CH3NH3PbI3/Cu2O structure exhibits enhanced photocatalytic activity with good recyclability under Xe lamp irradiation. The experimental results indicate that the better photocatalytic performance is ascribed to the higher carrier separation and transportation, higher specific surface area and the broadened absorption spectrum.

Graphical abstract: Hybrid nanostructures of TiO2 nanorod array/Cu2O with a CH3NH3PbI3 interlayer for enhanced photocatalytic activity and photoelectrochemical performance

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Publication details

The article was received on 09 May 2016, accepted on 09 Jun 2016 and first published on 10 Jun 2016


Article type: Paper
DOI: 10.1039/C6RA12066K
RSC Adv., 2016,6, 57695-57700

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    Hybrid nanostructures of TiO2 nanorod array/Cu2O with a CH3NH3PbI3 interlayer for enhanced photocatalytic activity and photoelectrochemical performance

    K. Fu, J. Huang, N. Yao, X. Deng, X. Xu and L. Li, RSC Adv., 2016, 6, 57695
    DOI: 10.1039/C6RA12066K

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