Removal of Three Fluoroquinolone Antibiotics by NaClO2-modified Biosorbent from Fruit Fiber of C. Procera

Here, Calotropis gigantea fiber (CGF) was first treated using NaClO 2 to chemically modify the fiber surface to improve its hydrophilicity. Subsequently, the resulting NaClO 2 -CGF was used as the biosorbent to remove three fluoroquinolone antibiotics including enrofloxacin (Enr), ciprofloxacin (Cip...

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Bibliographic Details
Published in:Journal of natural fibers 2020-11, Vol.17 (11), p.1594-1604
Main Authors: Duan, Wenzhen, Xiao, Weilong, Wang, Ningfen, Niu, Bihui, Zheng, Yian
Format: Article
Language:English
Subjects:
Adsorption
Antibiotics
Calotropis gigantea fiber
Ciprofloxacin
Enrofloxacin
Norfloxacin
Regeneration
sodium chlorite
static adsorption
亚氯酸钠
恩诺沙星
牛角瓜纤维
环丙沙星
诺氟沙星
静态吸附
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Summary:Here, Calotropis gigantea fiber (CGF) was first treated using NaClO 2 to chemically modify the fiber surface to improve its hydrophilicity. Subsequently, the resulting NaClO 2 -CGF was used as the biosorbent to remove three fluoroquinolone antibiotics including enrofloxacin (Enr), ciprofloxacin (Cip), and norfloxacin (Nor). The results demonstrate that NaClO 2 -CGF shows optimum adsorption properties at pH = 6, with the maximum adsorption capacity of 50-70 mg/g. Further, NaClO 2 -CGF can achieve its adsorption equilibrium within 30 min, an indication of its fast adsorption kinetics. After five adsorption-desorption cycles, a higher adsorption percentage is still observed, suggesting its good regeneration for use in successive cycles.
ISSN:1544-0478
1544-046X
DOI:10.1080/15440478.2019.1584080