PREPARATION AND PROPERTIES OF UNIFORM-COATED COLLOIDAL PARTICLES .6. TITANIA ON ZINC-OXIDE

被引：120

作者：

OCANA, M ^{[1
]}

HSU, WP ^{[1
]}

MATIJEVIC, E ^{[1
]}

机构：

[1] CLARKSON UNIV,DEPT CHEM,POTSDAM,NY 13699

来源：

LANGMUIR | 1991年 / 7卷 / 12期

关键词：

D O I：

10.1021/la00060a008

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Nearly spherical particles of zinc oxide were prepared and coated with uniform layers of amorphous titanium dioxide by hydrolysis and condensation of titanium butoxide in ethanolic solutions containing the preformed cores. The thickness of the coating could be altered by adjusting the concentrations of the reactants (titanium alkoxide and water) and the amount of added ZnO. On calcination > 700-degrees-C the shells of TiO2 react with the ZnO cores forming zinc titanates of various stoichiometries (alpha-Zn2TiO4, Zn2Ti3O8, and ZnTiO3). The optical properties of the solids as prepared and after calcination at several temperatures were measured and evaluated in terms of the Mie scattering coefficients.

引用

页码：2911 / 2916

页数：6

共 31 条

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