用镀铂钛电极对大肠杆菌的电化学失活:两电极和三电极配置的比较

IF 2.6 4区 化学 Q3 ELECTROCHEMISTRY
Panyawut Tonanon, Richard D. Webster
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引用次数: 0

摘要

本研究探讨了利用铂化钛电极对大肠杆菌(E. coli)进行电化学灭活的可行性,目的是在类似于饮用水的低离子强度介质中开发一种高效、可持续的水消毒方法。通过对双电极和三电极配置的比较分析,揭示了三电极系统在实现更高的电流吞吐量和提高细菌灭活效率方面的优势。这种改进归功于恒电位器通过包含参比电极来补偿溶液电阻(IR下降)的能力,从而确保更稳定和可控的电化学条件。大肠杆菌在各种电解质溶液中的失活遵循对数衰减模式(伪一阶),除氯化钠外,在测试的电解质中没有观察到显著差异。在NaCl的作用下,其杀菌活性的增强主要是由于氯离子的生成。这些发现为优化电化学消毒系统提供了见解,并突出了三电极配置在低电导率环境中实际水处理应用的潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Electrochemical inactivation of Escherichia coli using platinized titanium electrodes: a comparison between two- and three-electrode configurations

This study explores the feasibility of using platinized titanium electrodes for the electrochemical inactivation of Escherichia coli (E. coli), with the aim of developing an efficient and sustainable water disinfection method in low ionic strength media similar to what exists in potable water. A comparative analysis between two-electrode and three-electrode configurations revealed the superiority of the three-electrode system in achieving higher current throughput and enhanced bacterial inactivation efficiency. This improvement is attributed to the potentiostat’s ability to compensate for solution resistance (IR drop) through the inclusion of the reference electrode, ensuring more stable and controlled electrochemical conditions. The inactivation of E. coli in various electrolyte solutions followed a logarithmic decay pattern (pseudo first-order), with no significant difference observed among the electrolytes tested, except for sodium chloride. The enhanced bactericidal activity in the presence of NaCl was attributed to the generation of chlorine species. These findings provide insights into optimizing electrochemical disinfection systems and highlight the potential of three-electrode configurations for practical water treatment applications in low-conductivity environments.

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来源期刊
CiteScore
4.80
自引率
4.00%
发文量
227
审稿时长
4.1 months
期刊介绍: The Journal of Solid State Electrochemistry is devoted to all aspects of solid-state chemistry and solid-state physics in electrochemistry. The Journal of Solid State Electrochemistry publishes papers on all aspects of electrochemistry of solid compounds, including experimental and theoretical, basic and applied work. It equally publishes papers on the thermodynamics and kinetics of electrochemical reactions if at least one actively participating phase is solid. Also of interest are articles on the transport of ions and electrons in solids whenever these processes are relevant to electrochemical reactions and on the use of solid-state electrochemical reactions in the analysis of solids and their surfaces. The journal covers solid-state electrochemistry and focusses on the following fields: mechanisms of solid-state electrochemical reactions, semiconductor electrochemistry, electrochemical batteries, accumulators and fuel cells, electrochemical mineral leaching, galvanic metal plating, electrochemical potential memory devices, solid-state electrochemical sensors, ion and electron transport in solid materials and polymers, electrocatalysis, photoelectrochemistry, corrosion of solid materials, solid-state electroanalysis, electrochemical machining of materials, electrochromism and electrochromic devices, new electrochemical solid-state synthesis. The Journal of Solid State Electrochemistry makes the professional in research and industry aware of this swift progress and its importance for future developments and success in the above-mentioned fields.
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