Combustion Synthesis of Semiconductor Oxides and Evaluation of Adsorption and Photocatalysis Properties

Authors

  • Matheus Gomes Ferreira
  • Henrique Cesar Abreu do Nascimento Telles Rodrigues
  • Francisco Manoel dos Santos Garrido
  • Marta Eloisa Medeiros

Keywords:

Adsorption, Methylene blue, Magnetic composite, Semiconductor oxide, Photocatalysis, Combustion method

Abstract

Improper disposal of effluent contaminated with organic dyes may cause environmental problems. In this context, the ZnO semiconductor and the ZnO/ZnFe2O4 magnetic composite were prepared by the combustion method. The synthesized materials showed adsorption and photocatalysis properties for elimination of methylene blue dye from aqueous medium. About 88% of the methylene blue was eliminated by ZnO and 63% by the composite. In the photocatalysis process, a low cost visible light source was used. These materials can be regenerated by a photo-Fenton process. Moreover, the ZnO/ZnFe2O4 composite can be separated from the reaction medium by a magnetic field.

Downloads

Published

2020-01-21

Issue

Section

Original Papers