• efficient photodegradation of resorcinol with ag2o/zno nanorods heterostructure under a compact fluorescent lamp irradiation

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    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 943
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     ag2o/zno heterostructure has been recently synthesized using a facile chemical-precipitation method. x-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy, and energy dispersive x-ray spectroscopy results confirmed the ag2o nanoparticles loading on zno nanorods. the ag2o addition increased the visible light absorption ability and a red shift for ag2o/zno heterostructure appeared when compared to pure zno. photoluminescence spectra showed lower emission yield on the ag2o/zno heterostructure than on pure zno. such a decrease in the emission yield represents the fraction of the excited state ag2o sensitizer involved in the charge injection process. under compact fluorescent lamp irradiation, the ag2o/zno heterostructure demonstrated higher photocatalytic activity than pure zno in the degradation of resorcinol, which can be attributed to the high separation efficiency of the photogenerated electron-hole pairs based on the cooperative roles of ag2o loading on zno nanarods. all these characteristics represent a significant contribution of the ag2o/zno heterostructure to the practical applications in indoor environmental remediation.

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