中山醫學大學機構典藏 CSMUIR:Item 310902500/23962
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    题名: Keratin particles generated from rapid hydrolysis of waste feathers with green DES/KOH: Efficient adsorption of fluoroquinolone antibiotic and its reuse
    作者: Chao, SJ;Chung, KH;Lai, YF;Lai, YK;Chang, SH
    关键词: Waste feather;Deep eutectic solvent;Adsorption
    日期: 2021
    上传时间: 2022-08-05T09:45:38Z (UTC)
    出版者: ELSEVIER
    ISSN: 0141-8130
    摘要: Fluoroquinolone antibiotics are widely used in human and veterinary medicine. However, untreated fluoroquinolone seriously threatens the ecosystem and human health. In this study, deep eutectic solvents (DESs) were applied for the hydrolysis of waste feathers, and the keratin particles (KPs) in a low-cost teabag were utilized to adsorb fluoroquinolone norfloxacin. Results showed that choline chloride/ethylene glycol DES rapidly hydrolyzed feathers within 10 min, and the undissolved particles effectively adsorbed norfloxacin. Adding KOH markedly shortened the hydrolysis time (6 min) and increased the adsorption ability of KPs. The optimum hydrolysis conditions were DES ratio of 1 g: 4.67 g, KOH of 35.68 g L-1, and temperature of 90 degrees C. When KPDES+KOH of 2 g L-1, norfloxacin of 25 mg L-1, and pH(0) 7 were used, 94% of norfloxacin was removed in 60 min. A low-cost teabag effectively separated the KPs from the solution after adsorption and did not decrease the adsorption ability of the KPs. The Langmuir isotherm model well described the adsorption behavior of KPs(DES+KOH) (q(max) = 79.36 mg g(-1), R-2 = 0.9972). In addition, acetone efficiently regenerated the exhausted KPs(DES+KOH). The KPs maintained >80% of its adsorption ability after seven cycles of regeneration. (C) 2021 Elsevier B.V. All rights reserved.
    URI: http://dx.doi.org/10.1016/j.ijbiomac.2021.01.126
    https://www.webofscience.com/wos/woscc/full-record/WOS:000623235400021
    https://ir.csmu.edu.tw:8080/handle/310902500/23962
    關聯: INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES ,2021,v173 , P211-218
    显示于类别:[中山醫學大學研究成果] 期刊論文

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