Chinese Journal of Catalysis ›› 2019, Vol. 40 ›› Issue (5): 765-775.DOI: 10.1016/S1872-2067(19)63286-9

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Simultaneous formation of a C/N-TiO2 hollow photocatalyst with efficient photocatalytic performance and recyclability

Yingguan Xiaoa, Xiaodong Suna, linyu Lib, Juanrong Chenb, Shidong Zhaoa, Caiguo Jianga, Luyao Yanga, Li Chenga, Shunsheng Caoa   

  1. a Research School of Polymer Materials, School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China;
    b School of Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China
  • Received:2018-10-22 Revised:2018-12-17 Online:2019-05-18 Published:2019-03-30
  • Contact: S1872-2067(19)63286-9
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (21876069, 21707054), the Six Talent Peaks Project in Jiangsu (XCL-018), and the China Postdoctoral Science Foundation (2016M601744).

Abstract:

Herein, we report a unique approach towards the preparation of C-modified and N-doped TiO2 hollow spheres (C/N-TiO2). TEM, SEM, and XPS analyses were used to confirm that the carbon and nitrogen co-decorated TiO2 photocatalyst was formed. Carbon-decoration improves the visible-light absorption and speeds up the separation of the photo-generated electron-hole pairs. C/N-TiO2 not only narrows the band gap of TiO2, but also exhibits excellent photocatalytic activity for the degradation of tetracycline and tetracycline hydrochloride. In addition, the C/N-TiO2 photocatalyst shows excellent recyclability for water decontamination, making it a promising candidate to purify aquatic contaminants.

Key words: Simultaneous synthesis, C/N-doped TiO2, Hollow sphere, Tetracycline, Photocatalysis