SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2020, Vol. 28 ›› Issue (4): 1077-1084.DOI: 10.1016/j.cjche.2019.12.019

• Catalysis, Kinetics and Reaction Engineering • Previous Articles     Next Articles

A granular adsorbent-supported Fe/Ni nanoparticles activating persulfate system for simultaneous adsorption and degradation of ciprofloxacin

Jiwei Liu1,2, Yufeng Du1, Wuyang Sun1, Quanchao Chang1, Changsheng Peng1,3   

  1. 1 Key Lab of Marine Environmental Science and Ecology, Ministry of Education, Ocean University of China, Qingdao 266100, China;
    2 School of Environment, Tsinghua University, Beijing 100084, China;
    3 School of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China
  • Received:2019-10-22 Revised:2019-12-15 Online:2020-07-27 Published:2020-04-28
  • Contact: Changsheng Peng
  • Supported by:
    The authors acknowledge the support of the State Key Laboratory of Environmental Criteria and Risk Assessment (SKLECRA2013FP12) and the Shandong Province Key Research and Development Program (2016GSF115040).

A granular adsorbent-supported Fe/Ni nanoparticles activating persulfate system for simultaneous adsorption and degradation of ciprofloxacin

Jiwei Liu1,2, Yufeng Du1, Wuyang Sun1, Quanchao Chang1, Changsheng Peng1,3   

  1. 1 Key Lab of Marine Environmental Science and Ecology, Ministry of Education, Ocean University of China, Qingdao 266100, China;
    2 School of Environment, Tsinghua University, Beijing 100084, China;
    3 School of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China
  • 通讯作者: Changsheng Peng
  • 基金资助:
    The authors acknowledge the support of the State Key Laboratory of Environmental Criteria and Risk Assessment (SKLECRA2013FP12) and the Shandong Province Key Research and Development Program (2016GSF115040).

Abstract: In this work, Fe/Ni nanoparticles were produced through Fe(Ⅱ) and Ni(Ⅱ) reduction by NaBH4 and they were stabilized by a kind of prepared granular adsorbent (Fe/Ni@PGA). Fe/Ni@PGA as an environment-friendly activator was used to activate persulfate (PS) for the removal of ciprofloxacin from aqueous solution. Fe/Ni@PGA was systematically characterized via Brunauer-Emmett-Teller (BET) method, X-ray diffraction (XRD), scanning electron microscopy (SEM), and Fourier transform infrared spectroscopy (FTIR). The effects of PS concentration, initial solution pH, Fe/Ni@PGA dosage, initial ciprofloxacin concentration, reaction temperature, anions, and natural organic matters on the removal of ciprofloxacin by Fe/Ni@PGA/PS were analyzed. The removal efficiency of ciprofloxacin by Fe/Ni@PGA/PS was 93.24% under an initial pH of 3.0, PS concentration of 10 mM, Fe/Ni@PGA dosage of 0.1 g, and reaction temperature of 30 ℃. Fe/Ni@PGA could still exhibit high catalytic activity after nine cycles of regeneration. The removal mechanisms for ciprofloxacin by the Fe/Ni@PGA/PS system were proposed. In summary, the Fe/Ni@PGA/PS system could be applied as a promising technology for ciprofloxacin removal.

Key words: Fe/Ni@PGA, Ciprofloxacin, Persulfate, Sulfate radical, Oxidation, Adsorption

摘要: In this work, Fe/Ni nanoparticles were produced through Fe(Ⅱ) and Ni(Ⅱ) reduction by NaBH4 and they were stabilized by a kind of prepared granular adsorbent (Fe/Ni@PGA). Fe/Ni@PGA as an environment-friendly activator was used to activate persulfate (PS) for the removal of ciprofloxacin from aqueous solution. Fe/Ni@PGA was systematically characterized via Brunauer-Emmett-Teller (BET) method, X-ray diffraction (XRD), scanning electron microscopy (SEM), and Fourier transform infrared spectroscopy (FTIR). The effects of PS concentration, initial solution pH, Fe/Ni@PGA dosage, initial ciprofloxacin concentration, reaction temperature, anions, and natural organic matters on the removal of ciprofloxacin by Fe/Ni@PGA/PS were analyzed. The removal efficiency of ciprofloxacin by Fe/Ni@PGA/PS was 93.24% under an initial pH of 3.0, PS concentration of 10 mM, Fe/Ni@PGA dosage of 0.1 g, and reaction temperature of 30 ℃. Fe/Ni@PGA could still exhibit high catalytic activity after nine cycles of regeneration. The removal mechanisms for ciprofloxacin by the Fe/Ni@PGA/PS system were proposed. In summary, the Fe/Ni@PGA/PS system could be applied as a promising technology for ciprofloxacin removal.

关键词: Fe/Ni@PGA, Ciprofloxacin, Persulfate, Sulfate radical, Oxidation, Adsorption