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Fig. 4 | Nanoscale Research Letters

Fig. 4

From: Efficient Photocatalysts Made by Uniform Decoration of Cu2O Nanoparticles on Si Nanowire Arrays with Low Visible Reflectivity

Fig. 4

a Photocatalytic tests of four various photocatalysts. b Changes of absorption spectra and c the correlated kinetic modeling in the presence of D-Cu2O/SiNW arrays at various durations of light illuminations. The insert figure in b presented the color change of dye solutions from 0 to 80 min. d Comparisons of rate constants of photodegradation. e Band diagram of Cu2O/SiNW heterostructures

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