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Enhanced Degradation of Phenol by Visible Light-Assisted Fenton Catalytic Activity of Copper-Substituted Neodymium Ferrite

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Abstract

This work aims to prepare copper-substituted NdFeO3 (NdFe1 − xCuxO3, x = 0.05, 0.1, 0.15, and 0.20) photocatalysts via hydrothermal method and study their visible light-assisted Fenton catalytic activities for phenol degradation. The Cu-doped NdFeO3 photocatalysts were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Inductively Coupled Plasma–Mass Spectrometry (ICP-MS), N2 adsorption-desorption, Fourier-transform infrared spectroscopy (FTIR), and UV-Vis absorption analysis. The results revealed that samples with lower Cu contents in NdFe1 − xCuxO3 exhibited higher photo-Fenton catalytic performances than pure and highly doped NdFeO3. Among them, NdFe0.85Cu0.15O3 showed the highest photo-Fenton catalytic activity for phenol degradation under visible light, reaching a removal rate of 98.4% when using 1 g/L catalyst in the presence of 10 mM H2O2 at pH 5. It has been demonstrated that Cu-NdFeO3-15 has good stability and reusability, and it also exhibits great potential for usage in photo-Fenton degradation of phenol under visible light irradiation.

Highlights

• Cu-doped NdFeO3 was studied as photocatalyst for photo-Fenton degradation of phenol

• Improved phenol removal rate was related to Cu-doped NdFeO3 structural and optical properties

• Cu-doped NdFeO3 potential applications were suggested by its good stability and reusability

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Data Availability

The datasets generated and/or analysed during the current study are available from the corresponding author on reasonable request.

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Funding

This research is funded by Vietnam Ministry of Education and Training under grant number B2021-BKA-15.

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Contributions

Thi To Nga Phan performed the activity tests and wrote the manuscript. Thi Hai Nam Chu performed all characterizations. Both authors wrote and revised the manuscript.

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Correspondence to Thi To Nga Phan.

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The authors declare no competing interests.

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Phan, T.T.N., Chu, T.H.N. Enhanced Degradation of Phenol by Visible Light-Assisted Fenton Catalytic Activity of Copper-Substituted Neodymium Ferrite. Environ. Process. 10, 25 (2023). https://doi.org/10.1007/s40710-023-00639-6

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  • DOI: https://doi.org/10.1007/s40710-023-00639-6

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