Concentration determination of oxygen nanobubbles in electrolyzed water

被引：101

作者：

Kikuchi, Kenji ^{[1
]}

Ioka, Aoi ^{[1
]}

Oku, Takeo ^{[1
]}

Tanaka, Yoshinori ^{[2
]}

Saihara, Yasuhiro ^{[2
]}

Ogumi, Zernpachi ^{[3
]}

机构：

[1] Univ Shiga Prefecture, Dept Mat Sci, Shiga 5228533, Japan

[2] Home Appliances Co, Ctr Res & Dev, Matsushita Elect Works Ltd, Osaka 5718686, Japan

[3] Kyoto Univ, Grad Sch Engn, Dept Energy & Hydrocarbon Chem, Nishikyo Ku, Kyoto 6068501, Japan

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2009年 / 329卷 / 02期

关键词：

Oxygen nanobubble; Water electrolysis; Dissolved oxygen; Winkler method; ALKALINE WATER; HYDROGEN NANOBUBBLES; HYDROPHOBIC SURFACES; BUBBLES; RESISTANCE; BEHAVIOR;

D O I：

10.1016/j.jcis.2008.10.009

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Water electrolysis is well known to produce solutions supersaturated with oxygen. The oxygen in electrolyzed solutions was analyzed with a dissolved oxygen meter and the Winkler method of chemical analysis. The concentration of oxygen measured with the dissolved oxygen meter agreed with that obtained using the Winkler method. However, measurements using a 10-fold dilution method showed a larger concentration of dissolved oxygen compared to the above methods. We developed a modified Winkler method to measure total oxygen concentration more accurately, which agreed with the results obtained from the 10-fold dilution experiment. The difference in measurements is due to the existence of oxygen nanobubbles, as confirmed by the observation of dynamic light scattering using a laser. Further analysis of the oxygen nanobubbles demonstrated that the stability of the nanobubbles was sufficient for chemical reaction and solvation to bulk solution. (C) 2008 Elsevier Inc. All rights reserved.

引用

页码：306 / 309

页数：4

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