作者：Wei Liu, Mingliang Wang*, Chunxiang Xu, Shifu Chen*, Xianliang Fu*
关键字：Ag3PO4/ZnO, Rhodamine B
论文来源：期刊
具体来源：Mater. Res. Bull. 48(1):106-113, 2013.
发表时间：2013年
The efficient visible-light-sensitized Ag₃PO₄/ZnO composites with various weight percents of Ag₃PO₄ were prepared by a facile ball milling method. The photocatalysts were characterized by XRD, DRS, SEM, EDS, XPS, and BET specific area. The OH radicals produced during the photocatalytic reaction was detected by the TA–PL technique. The photocatalytic property of Ag₃PO₄/ZnO was evaluated by photocatalytic degradation of Rhodamine B under visible light irradiation. Significantly, the results revealed that the photocatalytic activity of the composites was much higher than that of pure Ag₃PO₄ and ZnO. The rate constant of RhB degradation over Ag₃PO₄(3.0 wt.%)/ZnO is 3 times that of single-phase Ag₃PO₄. The optimal percentage of Ag₃PO₄ in the composite is 3.0 wt.%. It is proposed that the OH radicals produced in the valence band of ZnO play the leading role in the photocatalytic degradation of Rhodamine B by Ag₃PO₄/ZnO systems under visible light irradiation.