Title of article
Hydrothermal Synthesis of LaCoO3 Perovskite Catalyst and Its Application for the Degradation of Phenol under Visible Light
Author/Authors
Niu ، Ziyan Shanxi Key Laboratory of High-Value Utilization of Coal Gangue - College of Chemical Engineering and Technology - Taiyuan University of Science and Technology , Guo ، Shilong Shanxi Key Laboratory of High-Value Utilization of Coal Gangue - College of Chemical Engineering and Technology - Taiyuan University of Science and Technology , Li ، Jinchun Shanxi Key Laboratory of High-Value Utilization of Coal Gangue - College of Chemical Engineering and Technology - Taiyuan University of Science and Technology , Qiao ، Fengrui Shanxi Key Laboratory of High-Value Utilization of Coal Gangue - College of Chemical Engineering and Technology - Taiyuan University of Science and Technology , Wang ، Jin Shanxi Key Laboratory of High-Value Utilization of Coal Gangue - College of Chemical Engineering and Technology - Taiyuan University of Science and Technology , Yang ، Caifeng Shanxi Key Laboratory of High-Value Utilization of Coal Gangue - College of Chemical Engineering and Technology - Taiyuan University of Science and Technology , Gao ، Chuangji Shanxi Key Laboratory of High-Value Utilization of Coal Gangue - College of Chemical Engineering and Technology - Taiyuan University of Science and Technology , Zhou ، Jialiang Shanxi Key Laboratory of High-Value Utilization of Coal Gangue - College of Chemical Engineering and Technology - Taiyuan University of Science and Technology , Liu ، Zhenmin Shanxi Key Laboratory of High-Value Utilization of Coal Gangue - College of Chemical Engineering and Technology - Taiyuan University of Science and Technology , Wang ، Xiaoxiao Shanxi Key Laboratory of High-Value Utilization of Coal Gangue - College of Chemical Engineering and Technology - Taiyuan University of Science and Technology , Sun ، Hongyan Shanxi Key Laboratory of High-Value Utilization of Coal Gangue - College of Chemical Engineering and Technology - Taiyuan University of Science and Technology , Wei ، Xianxian School of Environment and Resources - Taiyuan University of Science and Technology , Guo ، Shaoqing School of Environment and Resources - Taiyuan University of Science and Technology , Xue ، Yongbing Instrumental Analysis Center - Taiyuan University of Science and Technology
From page
1744
To page
1757
Abstract
In this study, a series of LaCoO3 perovskite catalysts with varying calcination temperatures were synthesized hydrothermally, and their structure, morphology, and optical properties were investigated using X-Ray powder Diffraction (XRD), Scanning Electron Microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), X-ray electron spectroscopy analysis (XPS), Magnetic Property Measurement System (MPMS), and other characterization techniques. Using phenol as the target degradation product, the photocatalytic degradation reaction was carried out in the presence of visible light. In addition, the photocatalytic mechanism of LaCoO3 perovskite was also discussed. The experimental results showed that the LaCoO3 perovskite catalyst has been prepared with good crystallization. The particle size of the catalysts ranged from 10 to 40 nm, and the specific surface area decreased with calcination depth. Moreover, all the LaCoO3 catalysts showed strong paramagnetism, and the particles were regularly agglomerated under the action of magnetic force. LaCoO3 catalyst (the calcination temperature of 750 °C) exhibited high photocatalytic activity. In addition, the study of photocatalytic mechanisms revealed three degradation pathways for degrading phenol into inorganic small molecules such as CO2 and H2O via highly active HO•, HO2•, and h+ radicals.
Keywords
Perovskite , LaCoO3 , catalyst , Photocatalysis , Phenol
Journal title
Iranian Journal of Chemistry and Chemical Engineering (IJCCE)
Journal title
Iranian Journal of Chemistry and Chemical Engineering (IJCCE)
Record number
2768018
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