A promoting effect of NH4F addition on the photocatalytic activity of sol-gel TiO2 films

被引：114

作者：

Hattori, A

Yamamoto, M

Tada, H

Ito, S

机构：

[1] Nippon Sheet Glass Technores Co Ltd, Itami, Hyogo 664, Japan

[2] Kinki Univ, Fac Sci & Engn, Dept Appl Chem, Higashiosaka 5778502, Osaka, Japan

[3] Kinki Univ, Environm Sci Res Inst, Higashiosaka, Osaka 5778502, Japan

来源：

CHEMISTRY LETTERS | 1998年 / 08期

关键词：

D O I：

10.1246/cl.1998.707

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The photoreactivity of sol-gel (SG)-TiO2 films was enhanced significantly with addition of a small amount of ammonium fluoride (AF) into the SO-starting solution. The rate of the TiO2 photoinduced oxidation of an overlying methylsiloxane monolayer reached a maximum near [AF]/[Ti] molar ratio of 1.35 x 10(-2). The apparent rate constant was as much as 8.2 times greater than of AF non-added system. X-Ray diffraction analyses clearly indicated that the principal factor is the improvement in the anatase crystallinity caused by F ions.

引用

页码：707 / 708

页数：2

共 14 条

[1] EFFECTS OF ALTERVALENT CATION DOPING ON ELECTRICAL-CONDUCTIVITY OF PLATINIZED TITANIA [J].