Methods for degrading dicloxacillin in water using inorganic peroxides and their combination with UVC- experimental and theoretical aspects

IF 1.6 Q2 MULTIDISCIPLINARY SCIENCES MethodsX Pub Date : 2024-08-16 DOI:10.1016/j.mex.2024.102920
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Abstract

Antibiotics are currently recognized as environmental pollutants. In this work, the methods involved in the degradation of a β-lactam antibiotic (i.e., DXC) by treatments based on inorganic peroxides and UVC (e.g., UVC alone, UV-C/H2O2, UVC/peroxymonosulfate, and UVC/peroxydisulfate) are presented. The methodology of computational calculations to obtain frontier orbitals and Fukui indices for DXC, and elucidate the reactive moieties on the target substance is also shown. Finally, the direct oxidation by peroxides and UV-C/H2O2 action to treat DXC in simulated pharmaceutical wastewater are depicted. The chromatographic and theoretical analyses allowed for determining the degrading performance of inorganic peroxides and UVC-based treatments toward the target pollutant in aqueous samples.

  • Treatments based on inorganic peroxides and UVC as useful methods for degrading the β-lactam antibiotic dicloxacillin.

  • Persulfates and UV-C/H2O2 showed high degrading action on the target pharmaceutical.

  • Methodologies based on theoretical calculations for the identification of reactive moieties on the DXC susceptible to radical attacks are presented.

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利用无机过氧化物及其与紫外线的结合在水中降解双氯西林的方法--实验和理论方面的问题
抗生素是目前公认的环境污染物。本研究介绍了利用无机过氧化物和紫外线(如单独紫外线、紫外线-C/H2O2、紫外线/过氧单硫酸盐和紫外线/过氧二硫酸盐)处理 β-内酰胺类抗生素(即 DXC)的降解方法。此外,还介绍了计算方法,以获得 DXC 的前沿轨道和福井指数,并阐明目标物质上的活性分子。最后,介绍了用过氧化物直接氧化和紫外线-C/H2O2 作用来处理模拟制药废水中的 DXC。通过色谱和理论分析,确定了无机过氧化物和基于紫外线的处理方法对水样中目标污染物的降解性能。
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来源期刊
MethodsX
MethodsX Health Professions-Medical Laboratory Technology
CiteScore
3.60
自引率
5.30%
发文量
314
审稿时长
7 weeks
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