학술논문
The effect of Zn-acetate molar variation on phase formation and photocatalytic degradation activity of Fe3 O4 /ZnO core-shell nanocomposite.
Document Type
Article
Author
Source
Subject
*ZINC ferrites
*ION recombination
*METHYLENE blue
*ELECTRON-hole recombination
*ZINC oxide synthesis
*PHOTODEGRADATION
*ZINC oxide
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Language
ISSN
1542-1406
Abstract
The aim of this research is to investigate the photodegradation of Methylene Blue with Fe3O4/ZnO core-shells. Fe3O4/ZnO core-shells were synthesized by a simple two-step chemical method (co-precipitation and precipitation) using a molar variation of Zn-acetate precursor. We found that the presence of Fe2O3 plays an important role in enhancement of photocatalytic activity due to the existence of higher concentration of surface oxygen vacancies and the suppressing effect of the Fe2+ ions on the recombination of photoinduced electron-hole pairs. The core-shell photocatalyst can be easily separated by using a commercial magnet without reduces photocatalytic efficiency within three times of recycling process. [ABSTRACT FROM AUTHOR]