1. Composition dependence of AgSbO/NaNbO composite on surface photovoltaic and visible-light photocatalytic properties.
- Author
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Li, Guoqiang, Wang, Wanling, Yang, Na, and Zhang, W.
- Subjects
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PHOTOVOLTAIC cells , *PHOTOCATALYSIS , *OPTICAL properties , *LIGHT absorption , *RHODAMINE B , *CHARGE exchange , *PHOTOELECTRICITY , *REDSHIFT - Abstract
The visible-light-active xAgSbO/NaNbO ( x=0.5, 1, 2, 4, 6) composite photocatalysts were prepared by a conventional solid-state reaction method. Composition dependences on the structure, optical, surface photoelectronic and photocatalytic properties were investigated. The absorption edge of the composites could be red-shifted increasing the amount of AgSbO in comparison with that of NaNbO. The surface photovoltage response shows the selectivity for the amount of AgSbO in the samples. The photocatalytic activities for Rhodamine B degradation exhibit a parabola-like behavior with the amount of AgSbO. The highest photocatalytic activity is observed on the AgSbO/NaNbO composite due to the better dispersiveness, electron transfer and surface photoelectric properties. [ABSTRACT FROM AUTHOR]
- Published
- 2011
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