Photoinduced superhydrophilic properties of Ti-B binary oxide thin films and their photocatalytic reactivity for the decomposition of NO

被引：13

作者：

Dohshi, S ^{[1
]}

Takeuchi, M ^{[1
]}

Anpo, M ^{[1
]}

机构：

[1] Osaka Prefecture Univ, Grad Sch Engn, Dept Appl Chem, Osaka 5998531, Japan

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2001年 / 1卷 / 03期

关键词：

Ti-B binary oxide; photocatalysis; ionized cluster beam method; TiO2; nanoparticles; decomposition of NO;

D O I：

10.1166/jnn.2001.045

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Characterizations of Ti-B binary oxide thin films by means of various spectroscopic measurements have shown that Ti-B binary oxide thin films are formed by ultra fine TiO2 nanoparticles. A dramatic decrease in the contact angle of water droplets to 0degrees under ultraviolet (UV) light irradiation and a return to only half of its initial value under dark conditions were observed for the Ti-B binary oxide thin films. Moreover, ultraviolet irradiation of these thin film photocatalysts in the presence of NO led to photocatalytic decomposition of NO into N-2 and O-2. Especially when the Ti content was low, the size of the primary nanoparticles of the thin films was smaller and the photocatalytic reaction proceeded efficiently with a high selectivity for the formation of N-2 and O-2 from NO.

引用

页码：337 / 342

页数：6

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