【摘 要】
：
In this work, Fe/Ni nanoparticles were produced through Fe(Ⅱ) and Ni(Ⅱ) reduction by NaBH4 and they were sta-bilized by a kind of prepared granular adsorbent
【机 构】
：
Key Lab of Marine Environmental Science and Ecology, Ministry of Education, Ocean University of Chin
论文部分内容阅读
In this work, Fe/Ni nanoparticles were produced through Fe(Ⅱ) and Ni(Ⅱ) reduction by NaBH4 and they were sta-bilized 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 sys-tematically 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 so-lution pH, Fe/Ni@PGA dosage, initial ciprofloxacin concentration, reaction temperature, anions, and natural or-ganic 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 dos-age of 0.1 g, and reaction temperature of 30 ℃. Fe/Ni@PGA could still exhibit high catalytic activity after nine cy-cles 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.
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