Cerium-Oxide-Nanoparticle-Decorated Zinc Oxide with Enhanced Photocatalytic Degradation of Methyl Orange

Chatchai Rodwihok, Duangmanee Wongratanaphisan, Van Tam Tran, Mook Choi Won, Hyun Hur Seung, Suk Chung Jin
2020 Applied Sciences  
Cerium-oxide-nanoparticle-decorated zinc oxide was successfully prepared using a simpleone-pot hydrothermal technique with different weight% Ce doping. It was found that an increasein Ce doping has an effect on the optical energy band-gap tunability. Ce dopant provides electrontrapping on Ce/ZnO nanocomposites and also acts as a surface defect generator during hydrothermalprocessing. Additionally, a bi-metal oxide heterojunction forms, which acts as a charge separatorto obstruct charge
more » ... uct charge recombination and to increase the photodegradation performance. It was foundthat the methyl orange (MO) degradation performance improved with an increase in Ce doping.The decomposition of MO went from 69.42% (pristine ZnO) to 94.06% (7% Ce/ZnO) after 60 minunder fluorescent lamp illumination.
doi:10.3390/app10051697 fatcat:y3pxtkxve5crzdnh4emqtlnq4u