화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.59, 115-126, March, 2018
DOI10.1016/j.jiec.2017.10.014  Export Citation
Graphene oxide based heterojunction TiO2.ZnO catalysts with outstanding photocatalytic performance for bisphenol-A, ibuprofen and flurbiprofen
Esra Bilgin Simsek†, Bayram Kilic1, Mansur Asgin1, and Ayse Akan2
  • Department of Chemical and Process Engineering, Faculty of Engineering, Yalova University, 77100 Yalova, Turkey
  • 1Department of Energy Systems Engineering, Faculty of Engineering, Yalova University, 77100 Yalova, Turkey
  • 2Department of Chemistry, Yildiz Technical University, Esenler, 34210 Istanbul, Turkey
E-mail:
Reduced graphene oxide based TiO2-ZnO nanostructures (RGO/TiO2/ZnO) are growth by hydrothermal method and characterized by SEM, XPS, XRD, and UV-vis analyses. XRD analysis confirmed the formation of wurtzite ZnO and anatase TiO2 over the tandem nanostructure. The UV.vis spectrum indicated that the hybrid catalyst has the lowest band gap energy (Eg = 2.5 eV). Photocatalytic degradation of the catalysts towards estrogen (bisphenol-A) and pharmaceuticals (ibuprofen, flurbiprofen) was investigated under UV and visible light irradiation. The heterojunction RGO/TiO2/ZnO catalyst exhibited greater photocatalytic activity than bifunctional RGO/TiO2 and TiO2/ZnO.
Keywords:Graphene oxide;TiO2;Photocatalytic degradation;Pharmaceutical;Estrogen
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