Synthesis of porous LaFeO3 prepared by nanocasting method for photo-Fenton degradation of oily-containing wastewater

Phan Thi To Nga; Nguyen Hong Lien; Le Van Tuyen; Phan Chi Nhan; Pham Thanh Huyen

doi:10.51316/jca.2022.002

Authors

Phan Thi To Nga School of Chemical Engineering, Hanoi University of Science and Technology, Vietnam Author
Nguyen Hong Lien School of Chemical Engineering, Hanoi University of Science and Technology, Vietnam Author
Le Van Tuyen School of Chemical Engineering, Hanoi University of Science and Technology, Vietnam Author
Phan Chi Nhan Center for chemical accident response and safety, Ministry of Industry and Trade Author
Pham Thanh Huyen School of Chemical Engineering, Hanoi University of Science and Technology, Vietnam Author

DOI:

https://doi.org/10.51316/jca.2022.002

Abstract

Porous LaFeO₃ were synthesised by nanocasting method using mesoporous silica (SBA-15) as a hard template and used as a visible-light-driven photocatalyst. The as-synthesised LaFeO₃ photocatalyst were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray Diffraction (XRD), N₂ adsorption-desorption, and Ultraviolet–Visible Diffuse Reflectance Spectroscopy (UV-vis DRS). The photo-Fenton catalytic activities of porous LaFeO₃ were investigated for the degradation of oily-containing wastewater. The results showed that porous LaFeO₃ had better photo-Fenton catalytic activity under visilbe light irradiation than pure LaFeO₃. The remarkable improvement photo-Fenton catalytic activity of porous LaFeO₃ material could be attributed to the synergistic effect of adsorption and visible light photo-Fenton processes thanks to its porous structure.

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