Oxygen Vacancy-Mediated Interfacial Charge Transfer of Au/ZnO Schottky Heterojunctions for Enhanced UV Photodegradation

Figure 4

(a–h) Raman spectra of Au/R-ZnO and Au/E-ZnO nanocomposites with different loading Au NPs (0 s, 20 s, 40 s, and 80 s), respectively.