Figure 4.

Different experiments conducted to ZnO, Ag2O, and ZnO-Ag2O composites. Photocatalytic degradation of MO in the presence of (a) pure ZnO, pure Ag2O, and ZnO-Ag2O composites under UV light irradiation; (b) different weight ratios of ZnO and Ag2O in 90 min; and (c) UV–vis diffuse reflectance spectra of pure Ag2O, ZnO, and Ag2O/ZnO composites with variable contents.

Xu et al. Nanoscale Research Letters 2013 8:536   doi:10.1186/1556-276X-8-536
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