UV-shielding properties of zinc oxide-doped ceria fine powders derived via soft solution chemical routes

被引：130

作者：

Li, RX

Yabe, S

Yamashita, M

Momose, S

Yoshida, S

Yin, S

Sato, T ^{[1
]}

机构：

[1] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan

[2] Kose Co, Kita Ku, Tokyo 1140005, Japan

[3] Nippon Inorgan Colour & Chem Co Ltd, Itabashi Ku, Tokyo 1740041, Japan

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2002年 / 75卷 / 1-3期

关键词：

ceria; zinc oxide; solid solution; fine powder; UV-shielding; catalytic activity;

D O I：

10.1016/S0254-0584(02)00027-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanoparticles of zinc oxide-doped ceria (3-7 nm diameter) were synthesized by soft solution chemical processes at 40degreesC and pH 6. Some zinc ions remained in the solution but cerium ions precipitated completely at pH 6. The solubility limit of ZnO in Ce1-xZnxO2-x was determined to be x = 0.561. The oxidation catalytic activity of ceria effectively decreased by doping with zinc oxide. The photocatalytic activity of undoped ceria and zinc oxide-doped ceria for oxidation of phenol was much smaller than that of titania. Zinc oxide-doped ceria showed excellent UV absorption and transparency in the visible ray region in a similar manner as that of undoped ceria. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：39 / 44

页数：6

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