Surface ξ potential and photocatalytic activity of rare earths doped TiO2

The iso-electric point of different rare earths （La, Ce, Y） doped anatase TiO2 was set out, and three organisms with different sur- face electrical properties （methylene blue trihydrate-positive electricity, methyl orange-negative electricity, methyl red-neutral electricity） were selected as photode...

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Bibliographic Details
Published inJournal of rare earths Vol. 26; no. 5; pp. 693 - 699
Main Author 宋绵新 边亮 周天亮 赵效勇
Format Journal Article
LanguageEnglish
Published 2008
Subjects
二氧化硅
导电性
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ISSN1002-0721
2509-4963

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Summary:The iso-electric point of different rare earths （La, Ce, Y） doped anatase TiO2 was set out, and three organisms with different sur- face electrical properties （methylene blue trihydrate-positive electricity, methyl orange-negative electricity, methyl red-neutral electricity） were selected as photodegradable models. The result showed that the photocatalytic activity of 0.5wt.%Y ions doped anatase TiO2 was better than those of the others. The relationship between Zeta （ξ） potential and the photocatalytic activity of different RE doped anatase TiO2 were also investigated. The Y-doped anatase TiO2 was found with the special two iso-electric points and three ξ potential values.
Bibliography:11-2788/TF
iso-electric point; TiO2;ξ potential; photocatalytic activity; rare earths
photocatalytic activity
iso-electric point
ξ potential
O64
TiO2
rare earths
ISSN:1002-0721
2509-4963