Preparation of Mg and Ce nanomaterials and their degradation of dye wastewater

In this paper, we synthesized nano-scale Mg(OH) 2 , Ce(OH) 4 , Mg/Ce(OH) 6 , and MgCeO 3 by simple membrane electrolysis. Under visible-light irradiation, the photocatalytic effect was measured by photocatalytic H 2 O 2 degradation of methylene blue (MB). The properties of the prepared materials wer...

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Bibliographic Details
Published in:Journal of materials science. Materials in electronics 2022-06, Vol.33 (18), p.15156-15165
Main Authors: Lin, Shengnan, Zhang, Tingan, Zhang, Junjie, Pan, Xijuan
Format: Article
Language:English
Subjects:
Catalytic activity
Catalytic oxidation
Cerium oxides
Characterization and Evaluation of Materials
Chemical oxygen demand
Chemistry and Materials Science
Chloride
Dyes
Efficiency
Electrolysis
Fourier transforms
Hydrogen peroxide
Infrared spectroscopy
Laboratories
Light
Light irradiation
Magnesium
Materials Science
Membrane separation
Metallurgy
Methylene blue
Nanomaterials
Optical and Electronic Materials
Photocatalysis
Photodegradation
Photoelectrons
Pollutants
Scanning electron microscopy
Spectrophotometry
Spectrum analysis
Wastewater
Water treatment
X ray photoelectron spectroscopy
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Summary:In this paper, we synthesized nano-scale Mg(OH) 2 , Ce(OH) 4 , Mg/Ce(OH) 6 , and MgCeO 3 by simple membrane electrolysis. Under visible-light irradiation, the photocatalytic effect was measured by photocatalytic H 2 O 2 degradation of methylene blue (MB). The properties of the prepared materials were investigated by scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR), N 2 adsorption–desorption isotherms (BET), UV–Visible spectrophotometry (UV–Vis), Mott–Schottky and ESR methods were used to characterize. The results show that, unlike the expected photocatalytic performance of the composite product, pure Mg(OH) 2 can achieve a photodegradation rate of 85.93% of MB (10 mg/L of 100 mL) under 4 h of visible light. However, the photocatalytic activity of Mg(OH) 2 /Ce(OH) 4 and MgO/CeO 2 was even worse than that of H 2 O 2 alone, so we further explored the reasons for the poor photocatalytic effect of the Mg/Ce complex.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-022-08434-z