Heterogeneous electro-Fenton (HEF) is as an alternative to the conventional electro-Fenton (EF) process. HEF uses a solid phase catalyst, whereas EF employs a solubilized one. This implies that in HEF, material can be recovered through a simple separation process such as filtration or magnetic separation in HEF. HEF also has the advantage of not requires a previous pH adjustment, which facilitates working in a higher pH range. In this work, Fe, Cu and Fe/Cu bimetallic nanoparticles (Fe/Cu NPs) were synthesized, characterized and used for the degradation of Nafcillin (NAF). The effect of the adsorption and the anodic oxidation (AO-H2O2) process was tested to assess their influence on HEF. NAF adsorption did not exceed 24% of antibiotic removal and the AO-H2O2 process eliminated the total NAF after 240 min of electrolysis. Through the HEF process, the antibiotic was completely removed using Fe/Cu NPs after 7.0 min of electrolysis, while these NPs, mineralization reached 41% after 240 min. In this case, NAF degradation occurs mainly due to the generation of hydroxyl radicals in the BDD electrode, and the Fenton reaction with Fe and Cu NPs. The main organic intermediates produced during the degradation of NAF by HEF were identified allowing the proposal of degradation pathway. Finally, the antibiotic was also completely eliminated from a wastewater from slaughterhouse after 15 min of treatment by HEF and using Fe/Cu bimetallic NPs.

中文翻译：

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使用Fe，Cu和Fe / Cu纳米粒子通过异质电芬顿法降解萘夫西林。

异质电Fenton（HEF）是常规电Fenton（EF）工艺的替代方法。HEF使用固相催化剂，而EF使用可溶解的催化剂。这意味着在HEF中，可以通过简单的分离过程（例如HEF中的过滤或磁力分离）来回收物料。HEF的另一个优点是不需要预先调节pH，这有助于在更高的pH范围内工作。在这项工作中，Fe，Cu和Fe / Cu双金属纳米颗粒（Fe / Cu NPs）合成，表征并用于降解Nafcillin（NAF）。测试了吸附和阳极氧化（AO-H2O2）过程的效果，以评估它们对HEF的影响。NAF吸附不超过抗生素去除量的24％，并且AO-H2O2工艺在电解240分钟后消除了总NAF。通过HEF流程，电解7.0分钟后，使用Fe / Cu NP完全去除了抗生素，而这些NP在240分钟后的矿化率达到41％。在这种情况下，NAF降解主要是由于在BDD电极中产生了羟基自由基，以及与Fe和Cu NPs的Fenton反应。鉴定了HEF降解NAF期间产生的主要有机中间体，从而提出了降解途径的建议。最后，经过HEF处理并使用Fe / Cu双金属NPs处理15分钟后，屠宰场废水中的抗生素也被完全消除。以及Fenton与Fe和Cu NP的反应。鉴定了HEF降解NAF期间产生的主要有机中间体，从而提出了降解途径的建议。最后，经过HEF处理并使用Fe / Cu双金属NPs处理15分钟后，屠宰场废水中的抗生素也被完全清除。以及Fenton与Fe和Cu NP的反应。鉴定了HEF降解NAF期间产生的主要有机中间体，从而提出了降解途径的建议。最终，在经过HEF处理15分钟并使用Fe / Cu双金属NP后，屠宰场废水中的抗生素也被完全清除。