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首页> 外文期刊>Journal of industrial and engineering chemistry >Introducing an effective iron-based catalyst for heterogeneous electro-Fenton removal of Gemcitabine using three-dimensional graphene as cathode
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Introducing an effective iron-based catalyst for heterogeneous electro-Fenton removal of Gemcitabine using three-dimensional graphene as cathode

机译：使用三维石墨烯作为阴极使用三维石墨烯的非均相电芬顿去除吉西他滨的有效铁基催化剂

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Five natural iron minerals include hematite, magnetite, siderite, limonite and pyrite as natural sources of iron were investigated to determine the best one which has the highest catalytic ability in the heterogeneous electro-Fenton process. The process has emerged as a simple, green, cost-effective and efficient method for the removal of persistent and pathogenic anti-cancer drug pollutants like Gemcitabine. On the other hand, different effective factors like the initial concentration of Gemcitabine, the amount of pyrite as the chosen efficient iron mineral, applied current intensity, initial pH and time of treatment process were optimized using response surface methodology to represent the best experimental condition. The role of hydroxyl (center dot OH) and superoxide anion (center dot O2-) radicals was monitored using scavengers of active radicals. The degradation efficiency of Gemcitabine and total organic carbon analysis reached 98.33% and 78.2% respectively, in the optimum condition after 5 h of electrolysis. The gained high value of coefficient of 0.995 by analysis of variance indicated the reliability of the presented model. Gas chromatography-mass spectrometry analysis identified nine by-products like small molecules of acids, amides, amines and esters. (C) 2021 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
机译：研究了赤铁矿、磁铁矿、菱铁矿、褐铁矿和黄铁矿等五种天然铁矿物作为铁的天然来源，以确定在非均相电Fenton过程中具有最高催化能力的最佳铁矿物。该工艺已成为一种简单、绿色、经济高效的方法，用于去除吉西他滨等持久性和致病性抗癌药物污染物。另一方面，采用响应面法优化了不同的影响因素，如吉西他滨的初始浓度、选择的有效铁矿物黄铁矿的数量、施加的电流强度、初始pH值和处理过程的时间，以代表最佳实验条件。使用活性自由基清除剂监测羟基（中心点OH）和超氧阴离子（中心点O2-）自由基的作用。在最佳条件下，电解5h后，吉西他滨和总有机碳的降解效率分别达到98.33%和78.2%。方差分析得到的高值系数为0.995，表明了该模型的可靠性。气相色谱-质谱分析鉴定出九种副产物，如酸、酰胺、胺和酯的小分子。（2021）韩国工业和工程化学学会。由爱思唯尔B.V.出版。版权所有。

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