Effects of Cobalt Salt Precursors on the Characteristics and photo-Fenton Catalytic Performance of Cobalt Ferrite Nanoparticles Synthesized by the Solvothermal Method

In this study, three cobalt salt precursors (nitrate, chloride, and sulfate) were used to synthesize magnetic cobalt ferrite nanoparticles (CoFe 2 O 4 , CFO NPs) via a solvothermal method. The research revealed that choosing precursors could aid in regulating the crystalline structure, particle size...

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Published in:Water, air, and soil pollution air, and soil pollution, 2023-10, Vol.234 (10), p.643-643, Article 643
Main Authors: Hoa, Le Thi Ngoc, Van Hieu, Le, Khoa, Le Tien, Le Kim Phung, Nguyen, An, Vu Nang
Format: Article
Language:English
Subjects:
air
Atmospheric Protection/Air Quality Control/Air Pollution
Carbon dioxide
Catalytic activity
Chemicals
Chloride
chlorides
Climate Change/Climate Change Impacts
Cobalt
Cobalt ferrites
crystal structure
Crystals
Dyes
Earth and Environmental Science
Environment
Environmental monitoring
fabrics
ferrimagnetic materials
Hydrogeology
Iron compounds
Irradiation
Magnetism
Methods
Methylene blue
Nanoparticles
Nitrates
Oxidation
Particle size
Polyethylene glycol
Precursors
remediation
Science
soil
Soil Science & Conservation
Structure
Sulfates
Surface area
Surfactants
Tetracycline
Tetracyclines
Ultraviolet radiation
water
Water Quality/Water Pollution
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Summary:In this study, three cobalt salt precursors (nitrate, chloride, and sulfate) were used to synthesize magnetic cobalt ferrite nanoparticles (CoFe 2 O 4 , CFO NPs) via a solvothermal method. The research revealed that choosing precursors could aid in regulating the crystalline structure, particle size, surface area, and magnetism of our CFO powders, which strongly affect their photo-Fenton catalytic performance. Accordingly, the CFO sample prepared using sulfate precursors shows the lowest particle size (146.5 ± 27.9 nm), the largest surface area (96.469 m 2 /g), and the best magnetism ( M s  = 76 emu/g). As a result, this sample exhibits the best photo-Fenton catalytic activity for the degradation of methylene blue under UVA irradiation (efficiency of 92.3% after 30 min and rate constant of 5.25 ± 0.22 h −1 ). Furthermore, it had good reusability after five cycles, making it promising for practical applications in the remediation of textile dye effluent. Graphical Abstract
ISSN:0049-6979
1573-2932
DOI:10.1007/s11270-023-06660-7