生物炭
诺氟沙星
吸附
水溶液
球磨机
核化学
乙醇
化学
材料科学
化学工程
制浆造纸工业
有机化学
冶金
热解
抗生素
生物化学
环丙沙星
工程类
作者
Shixin Yang,Chenxue Yang,Xin Hu,Zhuhong Ding,Ranran Zhou,He Wei,Lei Wang
标识
DOI:10.1080/26395940.2024.2311675
摘要
Ethanol combined-ball milling was used to modify corn-stover biochar. The adsorption performance and mechanisms of aqueous norfloxacin (NOR) onto the resulting biochar (C2H6O-BC) were evaluated. Ball-milling modulated its surface oxygen-containing functional groups and enhanced its specific surface area. The adsorption capacity of C2H6O-BC was 163 mg·g−1, and about 72% of the equilibrium adsorption capacity could be reached within 60 min. The electrostatic interaction was not the dominant mechanism when initial pH was lower than 8.00. The antagonistic effect of Cu(II) on NOR adsorption was observed. The fixed-bed column adsorption showed its potential to remove NOR and Cu(II) spontaneously. Sequential two-stage batch reaction experiment showed that it was a fast and efficient technology to remove NOR using C2H6O-BC. The adsorption mechanisms were suggested as π-π interactions, H-bonding and pore-filling. In summary, ethanol-combined ball milling in this study provided an efficient adsorbent for NOR.
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