Journal of Northeastern University(Natural Science) ›› 2022, Vol. 43 ›› Issue (1): 97-102.DOI: 10.12068/j.issn.1005-3026.2022.01.014

• Resources & Civil Engineering • Previous Articles     Next Articles

Preparation and Photocatalytic Properties of AgCl/Bi25FeO40 Composites

YIN Wen-yue, LI Ying-hua, NAN Rui-bin, LI Meng-xi   

  1. School of Resources & Civil Engineering,Northeastern University,Shenyang 110819 , China.
  • Revised:2021-03-02 Accepted:2021-03-02 Published:2022-01-25
  • Contact: LI Ying-hua
  • About author:-
  • Supported by:
    -

Abstract: AgCl/Bi25FeO40 composites loaded with different mass fractions of AgCl were prepared by the hydrothermal-sonochemical method. The microstructure, crystal phase composition and optical absorption properties of the composites were characterized by XRD, SEM-EDS, UV-Vis DRS and PL spectra. The photocatalytic degradation of Rhodamine B was also carried out. The results showed that Bi25FeO40was a cubic structure with a diameter of 0.8~10μm. AgCl was uniformly loaded on Bi25FeO40 with a diameter of 90~130nm. The combination of the two materials broadens the photo response range of the single material and improves the photocatalytic activity of Bi25FeO40. 0.1g AgCl/Bi25FeO40 was added to degrade 100mL 15mg/L Rhodamine B solution, when the mass fraction of loaded AgCl was 51.8 %, the degradation rate reached 94.4% in 75 min and Rhodamine B could be completely degraded in 90min. In addition, the degradation mechanism of AgCl /Bi25FeO40 was analyzed. It was considered that h+, e-,H2O2 and ·O-2 are the main active groups of the photocatalysis system to degrade Rhodamine B.

Key words: AgCl; Bi25FeO40; photocatalysis; full spectrum; Rhodamine B

CLC Number: