Chinese Journal of Applied Chemistry ›› 2021, Vol. 38 ›› Issue (1): 99-106.DOI: 10.19894/j.issn.1000-0518.200203

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Preparation of (BiO)2CO3-Bi-TiO2 Composite Nanofibers and Its Photocatalytic Degradation of Antibiotics

ZHANG Chun-Hua, ZHAO Xiao-Bo*, LI Yue-Jun, SUN Da-Wei   

  1. College of Chemistry,Baicheng Normal University,Baicheng 137000,China
  • Received:2020-07-06 Revised:2020-08-21 Published:2021-01-01 Online:2021-02-01
  • Supported by:
    National Natural Science Foundation of China(No.21573003) and Jilin Province Education Department “13th Five-Year Plan” Science and Technology Research Project(No.201638)

Abstract: The heterojunction type Bi-TiO2, (BiO)2CO3-TiO2 and (BiO)2CO3-Bi-TiO2 composite nanofibers were synthesized via a facile one-step solvothermal method, using electrospun TiO2 nanofibers as the substrate and glucose as reducing agent,in acidic or alkaline environments. The obtained materials were characterized by X-ray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS) and photoluminescence (PL) spectroscopy. The photocatalytic activities of the samples were evaluated by photodegradation of lomefloxacin, ciprofloxacin and norfloxacin as the target pollutants, under simulated sunlight irradiation, and the degradation reaction mechanism was explored. The results show that (BiO)2CO3-Bi-TiO2 photocatalyst exhibits the highest photocatalytic activity, with the degradation rate of norfloxacin, lomefloxacin and ciprofloxacin of 93.2%, 97.5% and 100%, respectively, under simulated sunlight irradiation for 60 min.

Key words: Composite nanofibers, Plasma resonance effect, Antibiotic drugs, Photocatalysis

CLC Number: