Study on the impact of strong magnetic fields on the photocatalytic performance of CaTiO3/TiO2 composite materials

The doped perovskite phase compounds exhibit unique electromagnetic properties and high activity in oxidation-reduction, hydrogenation, isomerization, electrocatalysis, etc., which is also a current research hotspot in materials science. Therefore, exploring the photocatalytic performance of the com...

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Bibliographic Details
Published in:Journal of physics. Conference series 2024-06, Vol.2783 (1), p.012023
Main Authors: Li, Qiang, Lin, Changxin
Format: Article
Language:English
Subjects:
Absorption spectra
Adsorption
Calcium ions
Calcium titanate
Composite materials
Electromagnetic properties
Isomerization
Magnetic fields
Magnetic properties
Materials science
Methylene blue
Oxidation
Perovskites
Photocatalysis
Photodegradation
Red shift
Sol-gel processes
Titanium dioxide
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Summary:The doped perovskite phase compounds exhibit unique electromagnetic properties and high activity in oxidation-reduction, hydrogenation, isomerization, electrocatalysis, etc., which is also a current research hotspot in materials science. Therefore, exploring the photocatalytic performance of the composite prepared by CaTiO3 and TiO2 in a strong magnetic environment is naturally of great interest. Composite materials of Ca2+/Ti4 with varying molar ratios were prepared by using the sol-gel method, and these materials were subjected to experiments for the photocatalytic degradation of methylene blue. Comparative analysis revealed that the catalytic effect was most favorable when Ca2+/Ti4+=0.3. At this ratio, the adsorption rate of the composite material showed minimal change with an increase in the dosage, while the initial concentration of the solution significantly affected the adsorption rate. The catalytic effect of the Ca2+/Ti4+=0.3 composite material prepared under a 9T magnetic field was improved compared to those prepared under 6T and no magnetic field conditions. The 9T composite material exhibited a reduction in cell size, a redshift in the absorption spectrum, and a decrease in powder particle size.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2783/1/012023