Evaluation of the formation of oxidants and by-products using Pt/Ti, RuO2/Ti, and IrO2/Ti electrodes in the electrochemical process

Yeojoon Yoon, Eunha Cho, Youmi Jung, Minhwan Kwon, Jaekyung Yoon, Joonwun Kang

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The aim of this study was to evaluate the formation of oxidants and by-products by using different electrode materials, such as Pt/Ti, RuO2/Ti, and IrO2/Ti, in the electrochemical process. The harmful by-products ClO-3 and ClO-4 were formed during the electrolysis of a Cl- electrolyte solution, as well as active chlorine, which is the most common water disinfectant. With regard to drinking water treatment, the most efficient electrode was defined as that leading to a higher formation of active chlorine and a lower formation of hazardous by-products. Overall, it was found that the Pt/Ti electrode should not be used for drinking water treatment applications, while the IrO2/Ti and RuO2/Ti electrodes are ideal for use.

Original languageEnglish
Pages (from-to)317-326
Number of pages10
JournalEnvironmental Technology (United Kingdom)
Volume36
Issue number3
DOIs
Publication statusPublished - 2015 Feb 1

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Oxidants
oxidant
Byproducts
electrode
Electrodes
Chlorine
Water treatment
Drinking Water
chlorine
Disinfectants
Electrolysis
electrolyte
Electrolytes
electrokinesis
evaluation
by-product
Water
water
drinking water treatment

All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • Water Science and Technology
  • Waste Management and Disposal

Cite this

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abstract = "The aim of this study was to evaluate the formation of oxidants and by-products by using different electrode materials, such as Pt/Ti, RuO2/Ti, and IrO2/Ti, in the electrochemical process. The harmful by-products ClO-3 and ClO-4 were formed during the electrolysis of a Cl- electrolyte solution, as well as active chlorine, which is the most common water disinfectant. With regard to drinking water treatment, the most efficient electrode was defined as that leading to a higher formation of active chlorine and a lower formation of hazardous by-products. Overall, it was found that the Pt/Ti electrode should not be used for drinking water treatment applications, while the IrO2/Ti and RuO2/Ti electrodes are ideal for use.",
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Evaluation of the formation of oxidants and by-products using Pt/Ti, RuO2/Ti, and IrO2/Ti electrodes in the electrochemical process. / Yoon, Yeojoon; Cho, Eunha; Jung, Youmi; Kwon, Minhwan; Yoon, Jaekyung; Kang, Joonwun.

In: Environmental Technology (United Kingdom), Vol. 36, No. 3, 01.02.2015, p. 317-326.

Research output: Contribution to journalArticle

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T1 - Evaluation of the formation of oxidants and by-products using Pt/Ti, RuO2/Ti, and IrO2/Ti electrodes in the electrochemical process

AU - Yoon, Yeojoon

AU - Cho, Eunha

AU - Jung, Youmi

AU - Kwon, Minhwan

AU - Yoon, Jaekyung

AU - Kang, Joonwun

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AB - The aim of this study was to evaluate the formation of oxidants and by-products by using different electrode materials, such as Pt/Ti, RuO2/Ti, and IrO2/Ti, in the electrochemical process. The harmful by-products ClO-3 and ClO-4 were formed during the electrolysis of a Cl- electrolyte solution, as well as active chlorine, which is the most common water disinfectant. With regard to drinking water treatment, the most efficient electrode was defined as that leading to a higher formation of active chlorine and a lower formation of hazardous by-products. Overall, it was found that the Pt/Ti electrode should not be used for drinking water treatment applications, while the IrO2/Ti and RuO2/Ti electrodes are ideal for use.

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