Epoxiconazole degradation in water samples: a comparative study of Fenton, photo-Fenton, solar photo-Fenton, and solar photolysis processes.

IF 2.7 3区 化学 Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY Photochemical & Photobiological Sciences Pub Date : 2024-06-01 Epub Date: 2024-05-15 DOI:10.1007/s43630-024-00582-x
Julieta L Sacchetto, Leandro Fuentes Medina, Karina I Toledo, Silvana C Plem, Yamile Jalit, Eduardo A Gatica, Sandra Miskoski, José Natera, Cristian M O Lépori, Walter A Massad
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Abstract

Epoxiconazole (EPO) is classified as a persistent organic pollutant due to its ability to persist in the environment for prolonged periods. Its degradation is pivotal in mitigating its environmental impact. This investigation focuses on assessing the degradation of EPO using various methodologies, namely Fenton, photo-Fenton, solar photo-Fenton, and solar photolysis, conducted in both Milli-Q water and groundwater. These experiments encompassed evaluations at both the standard pH typically used in photo-Fenton reactions and the natural pH levels inherent to the respective aqueous environments. Additionally, EPO degradation products were analyzed after a 60-min reaction. Notably, in systems utilizing groundwater, the inclusion of additional iron was unnecessary, as the naturally occurring iron content in the groundwater facilitated the intended processes. Specifically, in Milli-Q water, solar photo-Fenton demonstrated an EPO degradation efficiency of 97%. Furthermore, the substitution of Milli-Q water with groundwater in Fenton-like processes did not significantly affect the efficacy of EPO degradation. These findings underscore the potential of solar photo-Fenton as an economically viable and environmentally sustainable strategy for EPO degradation.

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水样中的环唑醇降解:芬顿、光-芬顿、太阳能光-芬顿和太阳能光解过程的比较研究。
环氧唑(EPO)由于能够在环境中长期存留而被归类为持久性有机污染物。降解 EPO 对减轻其对环境的影响至关重要。这项研究的重点是在 Milli-Q 水和地下水中使用各种方法评估 EPO 的降解情况,包括 Fenton、光-Fenton、太阳能光-Fenton 和太阳能光解。这些实验包括在光-芬顿反应通常使用的标准 pH 值和相应水环境固有的自然 pH 值下进行的评估。此外,还对 60 分钟反应后的 EPO 降解产物进行了分析。值得注意的是,在利用地下水的系统中,无需加入额外的铁,因为地下水中天然存在的铁含量促进了预期的过程。具体来说,在 Milli-Q 水中,太阳能光-芬顿对 EPO 的降解效率高达 97%。此外,在类似 Fenton 的过程中,用地下水代替 Milli-Q 水并不会对 EPO 降解的效率产生显著影响。这些发现强调了太阳能光-芬顿作为一种经济上可行、环境上可持续的 EPO 降解策略的潜力。
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来源期刊
Photochemical & Photobiological Sciences
Photochemical & Photobiological Sciences 生物-生化与分子生物学
CiteScore
5.60
自引率
6.50%
发文量
201
审稿时长
2.3 months
期刊介绍: A society-owned journal publishing high quality research on all aspects of photochemistry and photobiology.
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