Surface tuning of the photoelectrochemical properties of oblique angle co-sputtered ZnxFeyO films by Fe concentration

  • Tian Zhang
  • , Yudong Xia
  • , Hao Zhu
  • , Ruipeng Zhao
  • , Bai Sun
  • , Hongyan Wang
  • , Yong Zhang
  • , Bowan Tao
  • , Yong Zhao

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Complex three-dimensional nanosheet structure of ZnxFeyO was prepared by highly stable co-sputtering oblique angle deposition. Scanning electron microscopy was employed to observe surface morphology evolution of ZnxFeyO with different Fe concentrations. X-ray diffraction was employed to analyze compositions of ZnO, ZnFe2O4, and ZnFe2O4/Fe2O3 with Fe doping. Furthermore, specific nanostructures of ZnxFeyO decreased band gap and increased visible-light absorption ability. The ZnFe2O4/Fe2O3 sample exhibited higher photocatalytic efficiency than those of other films for the degradation of methylene blue. Addition of Fe led to the enhancement of photoelectrochemical properties of ZnFe2O4/Fe2O3 compared to pure ZnO and Fe2O3, and photocurrent response of ZnFe2O4/Fe2O3 was ~10 times than that of pure ZnO at constant potential of −0.2 V (vs. Ag/AgCl).

Original languageEnglish
Pages (from-to)8884-8890
Number of pages7
JournalCeramics International
Volume46
Issue number7
DOIs
StatePublished - May 2020
Externally publishedYes

Keywords

  • Co-sputtering
  • Photocatalytic applications
  • Photodegradation
  • Surface tuning

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