Preparation of electrolyzed oxidizing water with a platinum electrode prepared by magnetron sputtering technique. Issue 72 (22nd September 2017)

• Record Type: Journal Article
• Authors: Wei, Shaonan; Shi, Liubin; Ren, Zhandong; Zhang, Ailian; Ming, Ruoxi; Chai, Bo; Zhu, Yuchan
• Is Part Of: RSC advances. Volume 7:Issue 72(2017)
• Page Start: 45377
• Page End: 45384
• Publication Date: 2017-09-22
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c7ra08150b
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : EO water has the maximum value of available chlorine content when prepared by the Pt-MS electrode due to its good selectivity for CER. Abstract : Electrolyzed oxidizing water (EO water) with low pH (2.2–2.7), high oxidation–reduction potential (ORP > 1100 mV), and available chlorine content (ACC) of 30–80 mg L −1 has an efficiently bactericidal activity and wide adaptability against many food-borne pathogens. EO water could be generated by electrolysis of a dilute NaCl solution in an electrolysis chamber with a Pt/Ti electrode. In this study, the Pt/Ti electrode was prepared by magnetron sputtering technique. The electrode surface has the characteristic of specific growth along the [111] direction. At the same time, the platinum electrodes prepared through thermal decomposition and electrodeposition as the control were also investigated. X-ray diffraction (XRD) and scanning electron microscopy (SEM) were employed to study the performances of these three types of Pt/Ti electrode. The effects of the physicochemical properties of the Pt electrodes on their electrochemical behaviors were studied. Furthermore, the values of pH, ORP, ACC, Cl − and the sterilization effect of EO water using these Pt electrodes as anode materials have been systematically discussed. In addition, the content of HClO, ClO −, O3 and dissolved oxygen in EO water using the Pt-MS electrode has also been reported in this article.