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首页> 外文期刊>Water Science and Technology >Performance of iron nano particles and bimetallic Ni/Fe nanoparticles in removal of amoxicillin trihydrate from synthetic wastewater
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Performance of iron nano particles and bimetallic Ni/Fe nanoparticles in removal of amoxicillin trihydrate from synthetic wastewater

机译：铁纳米颗粒和双金属镍/铁纳米颗粒去除合成废水中阿莫西林三水合物的性能

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摘要

In the present study, the degradation of amoxicillin trihydrate (AMT), using synthesized nanoscale zerovalent iron (nZVI) and bimetallic Fe and Ni nanoparticles stabilized with chitosan (Cs-Fe/Ni), in water was investigated. A central composite design combined with response surface methodology and optimization was utilized for maximizing the AMT reduction by the nanoparticles-water system. The importance of the various variables and their interactions were analyzed using analysis of variance and t-test. The effects of independent parameters were tested and the results showed that the initial concentration of AMT, pH, and nanoparticles dosage were all significant factors. Field-emission scanning electron microscopy images indicated that chitosan acts as a stabilizer preventing the agglomeration of nanoparticles. Also, chitosan and Ni increased the specific surface area of Cs-Fe/Ni. X-ray diffraction confirmed the existence of Fe-0 in fresh samples and the presence of Fe(II) and Fe(III) after the reaction with AMT. This study demonstrates that the nZVI technology could be a promising approach for antibiotic wastewater treatment.
机译：在本研究中，研究了使用合成的纳米级零价铁（nZVI）和壳聚糖稳定化的双金属Fe和Ni纳米颗粒（Cs-Fe / Ni）降解三水阿莫西林（AMT）的性能。结合响应表面方法和优化进行的中央复合设计被用于最大化纳米颗粒-水系统的AMT降低。使用方差分析和t检验分析了各种变量及其相互作用的重要性。测试了独立参数的影响，结果表明AMT的初始浓度，pH和纳米颗粒剂量都是重要因素。场发射扫描电子显微镜图像表明，壳聚糖起稳定剂的作用，可防止纳米颗粒的团聚。此外，壳聚糖和Ni增加了Cs-Fe / Ni的比表面积。 X射线衍射证实了新鲜样品中Fe-0的存在以及与AMT反应后Fe（II）和Fe（III）的存在。这项研究表明，nZVI技术可能是一种有前途的抗生素废水处理方法。

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