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, Joon Wun Kang

Research output: Contribution to journalArticle

15 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

Bibliographical note

Funding Information:
This work is supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (2013R1A2A2A05006466) and Korea Ministry of Education (MOE) as ‘BK21 PLUS Project’.

All Science Journal Classification (ASJC) codes

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

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