Indian Journal of Engineering & Materials Sciences

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Hydrothermal Synthesis of Rare Earth Co-Doped Cerium Oxide : Influence on Phase Composition, Characterization, and Photocatalytic Activity


Affiliations
1 Department of Energy Systems Engineering, Elbistan Faculty of Engineering, Kahramanmaraş İstiklal University, Kahramanmaraş 46 300, Turkey
2 Material Science and Engineering, Institute of Science, Kahramanmaraş Sütçü İmam University, Kahramanmaraş 46 050, Turkey
 

In this study, the synergistic effect of CeO2-based ternary photocatalytic behavior was investigated. The rare earth element pair was doped to improve CeO2 photocatalytic performance. Cerium oxide (CeO2) and co-doped Ce0.85La0.10M0.05O2; M: (Sm, Gd, Dy, Er, Ho, Y) were prepared using the hydrothermal method. The synthesized compounds were examined with various analysis techniques. It was determined that the unit cell parameter varied according to the average diameters of the additive types. The relationship between the crystal parameter and degradation was examined. It was also determined that the particle size of the compounds changed in nm sizes. The Tauc plot was used in the calculation of the band range. The lowest band range 2.02 eV was observed in the Ce0.85La0.10Gd0.05O2 compound. The cationic dyestuff methylene blue was used in the catalytic experiments. The behavior of the compound with the dyestuff was also examined and a xenon lamp was used in order to observe the particle effect. When the results of the catalytic experiments were evaluated, it was shown that the added particles disintegrated the dyestuff and that the methylene blue degradation of the Ce0.85La0.10Gd0.05O2 compound was 71% (at 120 min).

Keywords

CeO2, Hydrothermal, Trivalent Ion Doping, Methylene Blue, Photocatalysis Degradation.
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  • Hydrothermal Synthesis of Rare Earth Co-Doped Cerium Oxide : Influence on Phase Composition, Characterization, and Photocatalytic Activity

Abstract Views: 161  |  PDF Views: 82

Authors

Handan ÖZLÜ TORUN
Department of Energy Systems Engineering, Elbistan Faculty of Engineering, Kahramanmaraş İstiklal University, Kahramanmaraş 46 300, Turkey
Rabia KIRKGEÇİT
Material Science and Engineering, Institute of Science, Kahramanmaraş Sütçü İmam University, Kahramanmaraş 46 050, Turkey

Abstract


In this study, the synergistic effect of CeO2-based ternary photocatalytic behavior was investigated. The rare earth element pair was doped to improve CeO2 photocatalytic performance. Cerium oxide (CeO2) and co-doped Ce0.85La0.10M0.05O2; M: (Sm, Gd, Dy, Er, Ho, Y) were prepared using the hydrothermal method. The synthesized compounds were examined with various analysis techniques. It was determined that the unit cell parameter varied according to the average diameters of the additive types. The relationship between the crystal parameter and degradation was examined. It was also determined that the particle size of the compounds changed in nm sizes. The Tauc plot was used in the calculation of the band range. The lowest band range 2.02 eV was observed in the Ce0.85La0.10Gd0.05O2 compound. The cationic dyestuff methylene blue was used in the catalytic experiments. The behavior of the compound with the dyestuff was also examined and a xenon lamp was used in order to observe the particle effect. When the results of the catalytic experiments were evaluated, it was shown that the added particles disintegrated the dyestuff and that the methylene blue degradation of the Ce0.85La0.10Gd0.05O2 compound was 71% (at 120 min).

Keywords


CeO2, Hydrothermal, Trivalent Ion Doping, Methylene Blue, Photocatalysis Degradation.

References