Removal of Amoxicillin in Aqueous Solution by a Novel Chicken Feather Carbon: Kinetic and Equilibrium Studies
Removal of Amoxicillin in Aqueous Solution by a Novel Chicken Feather Carbon: Kinetic and Equilibrium Studies
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新型鸡毛碳去除水溶液中的阿莫西林：动力学和平衡研究
DOI：
10.1007/s11270-017-3385-6
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发表时间：
2017-05
期刊：
影响因子：
--
通讯作者：
Xiaojing Wang
中科院分区：
文献类型：
--
作者：
Huiqin Li &;Jingtao Hu;Chuan Wang;Xiaojing Wang
鸡毛是由角蛋白组成的废弃物，一直以来都是被废弃的固体废弃物。废弃角蛋白的利用技术已成为developed.in电工、材料领域的研究热点。最近，许多新型吸附剂已被用于抗生素去除。鸡毛carbon.is应该是一个潜在的。研究了羽毛活性炭（AFC）对模拟废水中阿莫西林（AMOX）的吸附性能.扫描电镜观察了AFC的超微结构。记录并分析了X射线光电子能谱（XPS）。在本研究中测量的BET表面积高达1838.86 m2/g。同时，吸附速度快（5 ~ 7 min），去除率高（99.63%）。动力学、吸附等温线和热力学研究表明，AFC对AMOX的吸附属于放热物理吸附。AMOX与AFC表面的相互作用符合Freundlich吸附模型，为多层吸附过程。吸附动力学研究表明，吸附行为符合准二级动力学模型。此外，本文还讨论了pH值、离子强度和重复使用性能的影响。结果表明，AFC是最快速、有效、经济的AMOX去除剂，在各种温度和盐环境下都能有效去除AMOX。该系统在坚韧抗生素污染问题和抗生素污水处理设施的改造中具有实用性、方便性和可再生性。
Chicken feather, which is consisted of keratin,.has always been abandoned as solid waste. The.utilization technologies of waste keratin have been developed.in electric zones and materials fields so far..Recently, numerous new types of adsorbents have been.used for antibiotic removal. The chicken feather carbon.is supposed to be a potential one. In this study, an.activated feather carbon (AFC) was developed as the.absorbent of amoxicillin (AMOX) in simulated wastewater..The micropore structures of AFC were detected by the scanning electron microscope (SEM). X-ray photoelectron spectrum (XPS) was recorded and analyzed. A BET surface area, as high as 1838.86 m2/g, was measured in this study. At the meantime, a rapid adsorption (5∼7 min) and high removal efficiency (99.63%) could be observed. The kinetics, isotherms, and thermodynamic studies indicated that the adsorption of AMOX by AFC was an exothermic physic-adsorption. The interaction between AMOX and AFC surface was supposed to be a multiple-layer adsorption process for it is well fitted with the Freundlich model. The adsorption behavior could be described by pseudo-second-order model almost perfectly in kinetic studies. In addition, effect of pH, ionic strength, and reusability properties were also discussed in this paper. The AFC was proved to be the most rapid, efficient, and economically absorbent for AMOX removal, which was effective enough under various temperatures and saline circumstances. It was also proved useful, convenient, and renewable in dealing with the tough antibiotic pollutant problems and rebuilding of antibiotic sewage treatment facilities.
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影响因子：
8.7
作者：
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通讯作者：
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DOI：
--
发表时间：
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期刊：
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