Influence of pH on photoadsorption of dissolved oxygen in TiO2 suspensions

被引：1

作者：

Nakajima, H ^{[1
]}

Mori, T

Kobayashi, E

Watanabe, M

机构：

[1] Natl Inst Mat Sci, Adv Mat Lab, Tsukuba, Ibaraki 3050044, Japan

[2] Natl Inst Mat Sci, Ecomat Ctr, Tsukuba, Ibaraki 3050044, Japan

[3] KAKEN Co, Funct Mat Inst, Shikada, Ibaraki 3111416, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 2003年 / 42卷 / 10期

关键词：

TiO2; suspension; dissolved oxygen; photoadsorption; pH; UV; photocatalysis; photocatalytic oxidation;

D O I：

10.1143/JJAP.42.6623

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The concentrations of dissolved oxygen (DO) in TiO2 suspensions in the pH range 3-12 were decreased under UV irradiation, although the concentration at pH I was unchanged. The decrease in DO concentration was maximized at pH 5. These results suggest that the DO concentration in a solution can be controlled using a TiO2 photocatalyst and UV light. The pH dependence of the DO decrease was explained by considering the DO photoadsorption and the charge on the TiO2 surface.

引用

页码：6623 / 6624

页数：2

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