화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.68, 14-23, December, 2018
DOI10.1016/j.jiec.2018.07.024  Export Citation
Enhanced photo-Fenton degradation of tetracycline using TiO2-coated α-Fe2O3 core?shell heterojunction
Xiaogang Zheng, Wendi Fu, Fuyan Kang, Hao Peng1, †, and Jing Wen2, †
  • College of Chemistry and Chemical Engineering, Neijiang Normal University, Neijiang, Sichuan 641100, China
  • 1College of Chemistry and Chemical Engineering, Yangtz Normal University, Chongqing 408100, China
  • 2Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Key Laboratory of Salt Lake Resources Chemistry of Qinghai Province, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 810008, China
E-mail:,
TiO2-coated cubic α-Fe2O3 with mostly exposed (012) and (101) facets (α-Fe2O3@TiO2) was fabricated using a hydrothermal route for the photo-Fenton degradation of tetracycline under visible light irradiation. TiO2 coating could greatly affect the photocatalytic activity of α-Fe2O3@TiO2. Compared with cubic α-Fe2O3 alone for photodegradation of tetracycline, α-Fe2O3@TiO2 with TiO2 shell of around 15 nm exhibited higher removal efficiency of tetracycline in photo-Fenton system, and its durability was slightly affected after five cycle times under same conditions. It is ascribed to the well-matched interface between cubic α-Fe2O3 core and TiO2 shell, leading to the broadened light-absorption and the efficient separation of photo-generated electon?hole pairs. The OH radicals were main responsible for the advanced photocatalytic performance of α-Fe2O3@TiO2 in visible-light driven degradation of tetracycline.
Keywords:Cubic α-Fe2O3;TiO2 coating;Well-matched interface;Photo-Fenton degradation;Tetracycline
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