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Title: Pure and Ce-doped spinel CuFe₂O₄ photocatalysts for efficient rhodamine B degradation
Authors: Keerthana, S. P.
Yuvakkumar, R.
Ravi, G.
Pavithra, S.
Thambidurai, Mariyappan
Dang, Cuong
Velauthapillai, Dhayalan
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2021
Source: Keerthana, S. P., Yuvakkumar, R., Ravi, G., Pavithra, S., Thambidurai, M., Dang, C. & Velauthapillai, D. (2021). Pure and Ce-doped spinel CuFe₂O₄ photocatalysts for efficient rhodamine B degradation. Environmental Research, 200, 111528-.
Journal: Environmental Research 
Abstract: Wastewater management is becoming a serious issue worldwide. To enhance the reuse of wastewater, one has to remove toxic pollutants present in it. High amount of dye is present in wastewater, and to remove these dyes is the large scope of this research. Herein, we report production of pure and Ce-doped copper ferrite via hydrothermal route. The synthesized nanoparticles were collected and analyzed by basic characterization techniques. The bandgap energy calculated for pure, 1% Ce, and 2% Ce-doped CuFe2O4 was found to be 2.77, 2.57, and 2.36eV, respectively. Reduction in bandgap was attributed to the doping element. The shape and size of pure and Ce-doped products were investigated using a scanning electron microscope. Agglomeration was observed in the pure copper ferrite sample. In the Ce-doped sample, agglomeration was clearly reduced and the 2% Ce-doped CuFe2O4 sample showed growth of small nanoparticles. They showed complete growth and were arranged in a uniform manner without agglomeration. The surface area of the 2% Ce-CuFe2O4 sample was found to be 65.89 m2/g with 7.02 nm pore diameter. The photocatalytic activity of the prepared material was observed for rhodamine B degradation. The pure and catalyst-added dye was exposed under visible light. The samples were tested for UV. The efficiency obtained for pure dye solution, pristine CuFe2O4-added, and 1% Ce and 2% Ce-doped CuFe2O4-added dye solutions were 48%, 50%, 66%, and 88% within 2 h of irradiation. The 2% Ce-doped CuFe2O4 sample showed excellent photocatalytic activity as the bandgap and morphology were enhanced by doping an appropriate ratio of Ce ions.
ISSN: 0013-9351
DOI: 10.1016/j.envres.2021.111528
Schools: School of Electrical and Electronic Engineering 
Research Centres: Centre for OptoElectronics and Biophotonics (OPTIMUS) 
The Photonics Institute 
Rights: © 2021 Elsevier Inc. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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