Electrochemical oxidation of amoxicillin on carbon nanotubes and carbon nanotube supported metal modified electrodes
作者:Marta Ferreira、Iwona Kuzniarska-Biernacka、António M. Fonseca、Isabel C. Neves、Olívia S.G.P. Soares、Manuel F.R. Pereira、José L. Figueiredo、Pier Parpot
DOI:10.1016/j.cattod.2019.06.039
日期:2020.11
higher than that of the electrode material. Principalcomponentanalysis allowed to determine the experimental parameters vs. product distribution relationship and to elucidate the oxidation pathways for the studied electrodes. The results show that the hydroxylation of the aromatic ring and the nitrogen atom play an important role on the efficient degradation of AMX.
在0.1M NaOH,0.1M NaCl和0.1M Na 2 CO 3 / NaHCO 3中,在基于Toray的CNT,Pt / CNT和Ru / CNT修饰电极上对阿莫西林(AMX)进行电解缓冲液(pH 10)介质,目的是研究电极材料和pH值对AMX的氧化降解和矿化这两个因素的重要性。为此,用HPLC-MS和GC-MS鉴定电解产物,并用HPLC-UV-RID和IC定量。对于碳酸盐缓冲液中的Pt / CNT修饰电极,发现了最高的碳矿化效率,相当于氧化的AMX的30%。关于AMX的转化,结果表明pH的影响高于电极材料的影响。主成分分析可以确定实验参数与。产物分布关系并阐明所研究电极的氧化途径。结果表明,芳香环和氮原子的羟基化对AMX的有效降解起着重要作用。