Naturally occurring metal oxides from rocks as capacitive deionization electrode material for antibacterial activities

IF 1 4区工程技术 Q4 ENGINEERING, CHEMICAL

Desalination and Water Treatment Pub Date : 2023-01-01 DOI:10.5004/dwt.2023.29587

Furaha Ndeki Alphonce, T. Alfredy, A. Hilonga, Y. Jande

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引用次数: 0

Abstract

The present study aimed to investigate the efficacy of activated carbon (AC) electrode embedded with naturally occurring metal oxides (MO) from rocks for antibacterial activities against both gram-negative ( Escherichia coli ) and gram-positive ( Salmonella aureus ) bacteria using capacitive deioniza-tion technique. The desalination and disinfection performance of the fabricated AC/MO electrode was evaluated through the batch mode experiments conducted at a potential difference of 1.2 V for 240 min (4 h). The results revealed that the AC/MO electrode achieved a complete removal efficiency of 100% for E. coli and 60% for S. aureus in the field water collected from Nduruma stream (natural water). The bacterial removal mechanism was attributed to the capacitive deion-ization (CDI) process and physical adsorption. The study highlights the potential of AC/MO electrode material as an effective antibacterial agent for the CDI process, which may have significant implications for the development of new technologies for water purification and disinfection.

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天然存在于岩石中的金属氧化物，用作抗菌活性的电容性去离子电极材料

本研究旨在利用电容去离子技术研究岩石天然金属氧化物(MO)包埋活性炭(AC)电极对革兰氏阴性(大肠杆菌)和革兰氏阳性(金黄色沙门氏菌)细菌的抑菌活性。通过在1.2 V电势差下进行240 min (4 h)的间歇模式实验，对制备的AC/MO电极的脱盐和消毒性能进行了评价。结果表明，AC/MO电极对Nduruma溪流(天然水)现场水的大肠杆菌和金黄色葡萄球菌的去除率分别达到100%和60%。细菌的去除机制归因于电容脱离子(CDI)过程和物理吸附。该研究突出了AC/MO电极材料作为CDI工艺有效抗菌剂的潜力，这可能对水净化和消毒新技术的开发具有重要意义。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Desalination and Water Treatment 工程技术-工程：化工

CiteScore

2.20

自引率

9.10%

发文量

审稿时长

5.3 months

期刊介绍： The journal is dedicated to research and application of desalination technology, environment and energy considerations, integrated water management, water reuse, wastewater and related topics.