Photocatalytic degradation of methylene blue on magnetically separable MgFe2O4 under visible light irradiation
Warsi, Muhammad Farooq
Nadeem, Muhammad Tahir
KAUST DepartmentMaterials Science and Engineering Program
Physical Sciences and Engineering (PSE) Division
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AbstractA magnetically separable single-phase MgFe2O4 photocatalyst with a spinel crystal structure was synthesized by using the solid-state reaction method. The formation of spinel structure is confirmed by X-ray diffraction and Fourier transform infrared spectroscopy. The magnetic measurements showed that the photocatalyst material can be separated from water when an external magnetic field is added and redispersed into water solution after the external magnetic field is eliminated. It is one of the promising photocatalysts for waste water treatment. The photocatalytic activity of MgFe2O4 was investigated by using the photo-decomposition of methylene blue dye under visible light. The photoelectrochemical property of the MgFe2O4 was studied by measuring their photocurrent-potential behavior in 1 M NaOH electrolyte under AM 1.5100 mW cm-2 illumination. © 2013 Elsevier B.V. All rights reserved.
SponsorsWe are thankful Korean Ministry of Education, Science and Technology under grants NRF-2010-0029700 (Priority Research Centers Program). One of the authors (M. F. Warsi) is highly thankful to the Islamia University of Bahawalpur (Pakistan) and the Higher Education Commission (as start up grant) for sponsoring this project.
JournalMaterials Chemistry and Physics