研究报告

  • 林泽,宁军,翁秀兰,陈祖亮.膨润土负载纳米铁/镍还原阿莫西林的环境影响因素研究[J].环境科学学报,2018,38(7):2667-2675

  • 膨润土负载纳米铁/镍还原阿莫西林的环境影响因素研究
  • Study on the effect of environment factors on the reduction of amoxicillin using bentonite supported Fe/Ni nanoparticles
  • 基金项目:福建省自然科学基金(No.2016J05028)
  • 作者
  • 单位
  • 林泽
  • 福建师范大学环境科学与工程学院, 福州 350007
  • 宁军
  • 福建师范大学环境科学与工程学院, 福州 350007
  • 翁秀兰
  • 福建师范大学环境科学与工程学院, 福州 350007
  • 陈祖亮
  • 福建师范大学环境科学与工程学院, 福州 350007
  • 摘要:采用液相还原法制备膨润土负载纳米铁/镍(Bent-Fe/Ni)用于还原阿莫西林,研究了不同浓度的阴离子(SO42-、HCO3-)和阳离子(Ca2+、Cu2+)对Bent-Fe/Ni还原阿莫西林的影响.结果表明,SO42-、HCO3-浓度对Bent-Fe/Ni还原阿莫西林的影响较大,当其浓度分别为0和500 mg·L-1时,阿莫西林的去除率分别为93.7%和21.5%(SO42-),以及93.7%和5.8%(HCO3-);Ca2+对Bent-Fe/Ni还原阿莫西林起到抑制作用,当其浓度为0和500 mg·L-1时,阿莫西林的去除率分别为93.7%和77.8%;低浓度的Cu2+对Bent-Fe/Ni还原阿莫西林起到促进作用,而高浓度的Cu2+对Bent-Fe/Ni还原阿莫西林起到抑制作用,当其浓度为0、10和100 mg·L-1时,阿莫西林的去除率分别为93.7%、94.8%和86.7%.
  • Abstract:Bentonite supported Fe/Ni nanoparticles (Bent-Fe/Ni) was prepared by chemical reduction in aqueous solution, and was used to remove amoxicillin. The effects of different concentrations of anions (SO42- and HCO3-) and cations (Ca2+ and Cu2+) on the reduction of amoxicillin using Bent-Fe/Ni were investigated. The results indicated that SO42- and HCO3-was a major factor on the reduction of amoxicillin, where the removal efficiency of amoxicillin reduced from 93.7% to 21.5%, and 93.7% to 5.8% when the concentration of SO42- and HCO3- increased from 0 to 500 mg·L-1. However, the removal efficiency of amoxicillin reduced from 93.7% to 77.8% as the concentration of Ca2+ increased from 0 to 500 mg·L-1, suggesting that the coexisted Ca2+ inhibited the reduction of amoxicillin. In addition, 93.7%, 94.8% and 86.7% of amoxicillin was removed as the concentration of Cu2+ was 0, 10 and 100 mg·L-1, respectively, indicating that low concentration of Cu2+ promoted the reduction of amoxicillin and the high concentration of Cu2+ inhibited the reduction of amoxicillin.

  • 摘要点击次数: 142 全文下载次数: 158