Physical properties of zinc oxide thin films coated by reduced graphene oxide for enhanced photoelectrochemical activity

Jemia, D. Ben; Karyaoui, M.; Wederni, M.A.; Assaker, I. Ben; Martı́nez-Huerta, M.V.; Chtourou, R.

doi:10.1016/j.tsf.2022.139120

Cited by 7 publications

(2 citation statements)

References 46 publications

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“…No peaks corresponding to graphene oxide is observed in the GO incorporate samples. However, the intensity of the E 2H and E 2L peaks found to decrease upon increasing the GO content in the films [18] …”

Section: Resultsmentioning

confidence: 88%

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Graphene Oxide Incorporated Zinc Oxide Thin Films by Spray Pyrolysis for Efficient Photodegradation of Methylene Blue

et al. 2023

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Photodegradation of methylene blue dye was studied with pure and graphene oxide incorporated zinc oxide thin films as catalysts. Graphene oxide content in the precursor solution was varied from 0.0005 to 0.005 g/L. Thin films were prepared by automated spray pyrolysis technique at a substrate temperature of 425 °C. Structural studies revealed the formation of hexagonal wurtzite structure of zinc oxide. Carbon presence in the films was confirmed with energy‐dispersive spectroscopy. Optical band gap of the samples was determined using Tauc method. Intensity of the near band emission of photoluminescence spectrum was found to decrease upon increasing graphene oxide concentration. Photocatalytic activity of all the films has been studied against methylene blue dye under solar irradiation for 180 minutes and it is found that the highest graphene oxide content attributes to better degradation efficiency of 91.2 %.

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Section: Resultsmentioning

confidence: 88%

“…However, the intensity of the E 2H and E 2L peaks found to decrease upon increasing the GO content in the films. [18] Figure 3 (a-f) show the surface morphology of pure and GO incorporated ZnO thin film samples obtained from FE-SEM. It is seen that surface of all the samples consist of plateaus and nanobuds like shapes.…”

Section: Resultsmentioning

confidence: 99%