CoFe2O4−Fe3O4 Magnetic Nanocomposites as Photocatalyst for the Degradation of Methyl Orange Dye
Joint Authors
Borgohain, Chandan
Mishra, Debabrata
Perumal, A.
Senapati, Kula Kamal
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-08-28
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Engineering Sciences and Information Technology
Chemistry
Abstract EN
We report the investigation of temperature-dependent magnetic properties and photocatalytic activity of CoFe2O4−Fe3O4 magnetic nanocomposites (MNCs) synthesized by hydrothermal process.
Room-temperature magnetic hysteresis (M-H) loops result enhanced saturation magnetization of 90 emu/g and coercivity (HC) of 530 Oe for CoFe2O4−Fe3O4 MNCs.
With decreasing temperature to 20 K, HC increases from 500 Oe to 6800 Oe, and the M-H loops exhibit exchange coupling feature between CoFe2O4 and Fe3O4.
Low- and high-temperature-dependent magnetization measurements confirm that the blocking temperature lies above 300 K and the presence of two magnetic phase transitions corresponding to CoFe2O4 and Fe3O4, respectively.
The photocatalytic activity of the MNCs has been examined on the reduction of methyl orange (MO), a colored compound used in dyeing and printing textiles.
The observed results suggest that the CoFe2O4−Fe3O4 MNCs act as an excellent photocatalyst on the degradation of organic contaminants and degrade 93% of MO in 5 hours of UV irradiation.
The photocatalytic activity of MNCs is attributed to remarkably high band gap energy and small particle size.
Also, the MNCs with a reproducible photocatalytic activity are well separable from water media by applying external magnetic field and acts as a promising catalyst for the remediation of textile wastewater.
American Psychological Association (APA)
Mishra, Debabrata& Senapati, Kula Kamal& Borgohain, Chandan& Perumal, A.. 2012. CoFe2O4−Fe3O4 Magnetic Nanocomposites as Photocatalyst for the Degradation of Methyl Orange Dye. Journal of Nanotechnology،Vol. 2012, no. 2012, pp.1-6.
https://search.emarefa.net/detail/BIM-463425
Modern Language Association (MLA)
Mishra, Debabrata…[et al.]. CoFe2O4−Fe3O4 Magnetic Nanocomposites as Photocatalyst for the Degradation of Methyl Orange Dye. Journal of Nanotechnology No. 2012 (2012), pp.1-6.
https://search.emarefa.net/detail/BIM-463425
American Medical Association (AMA)
Mishra, Debabrata& Senapati, Kula Kamal& Borgohain, Chandan& Perumal, A.. CoFe2O4−Fe3O4 Magnetic Nanocomposites as Photocatalyst for the Degradation of Methyl Orange Dye. Journal of Nanotechnology. 2012. Vol. 2012, no. 2012, pp.1-6.
https://search.emarefa.net/detail/BIM-463425
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-463425