Journal of Inorganic Materials ›› 2013, Vol. 28 ›› Issue (9): 997-1002.DOI: 10.3724/SP.J.1077.2013.12671

• Research Paper • Previous Articles     Next Articles

Photocatalytic Properties of Magnetic Activated Carbon Supported F-doped TiO2

LIN Xiao-Xia1, JI Xiang2, FU De-Gang2, HAO Ling-Yun1   

  1. (1. School of Material Engineering, Jinling Institute of Technology, Nanjing 211169, China; 2. State Key Laboratory of Bieletroics, Southeast University, Nanjing 210096, China)
  • Received:2012-11-06 Revised:2013-01-18 Published:2013-09-20 Online:2013-08-14
  • Supported by:

    National Natural Science Foundation of China (51172043)

Abstract: Fluorine-doped TiO2 (F-TiO2) prepared by Sol-Gel method was coated on magnetic activated carbon, and the magnetically separable composite photocatalyst (F-TMAC) was synthesized. The prepared samples were characterized by XRD, SEM, UV-Vis, XPS and vibrating sample magnetometer (VSM). The photocatalytic activity was determined by degradation of 100 mg/L reactive brilliant red (X-3B) in a 200 mL aqueous solution with 0.2 g catalyst. The results showed that the photocatalytic activity of such type catalyst was better than that of Degussa P25. The degradation ratio of X-3B was 99.8% under 18 W UV lamp irradiation and 83.1% under 250 W visible lamp irradiation, respectively. Furthermore, the photocatalyst can be separated easily by an external magnetic field with good reuse performance. The degradation ratio of X-3B was decreased by 6% after 5 cycles.

Key words: magnetic activated carbon, magnetical separation, fluorine-doped TiO2, photocatalysis

CLC Number: