Synthesis of CoFe2O4/Peanut Shell Powder Composites and the Associated Magnetic Solid Phase Extraction of Phenoxy Carboxylic Acid Herbicides in Water

Ji, Dongliang; Huang, Zhaoqin; Du, Buyun

doi:10.3390/ijerph19148450

Open AccessArticle

Synthesis of CoFe₂O₄/Peanut Shell Powder Composites and the Associated Magnetic Solid Phase Extraction of Phenoxy Carboxylic Acid Herbicides in Water

by

Dongliang Ji

,

Zhaoqin Huang

^* and

Buyun Du

College of Environment and Ecology, Jiangsu Open University, Nanjing 210036, China

^*

Author to whom correspondence should be addressed.

Int. J. Environ. Res. Public Health 2022, 19(14), 8450; https://doi.org/10.3390/ijerph19148450

Submission received: 13 May 2022 / Revised: 7 July 2022 / Accepted: 8 July 2022 / Published: 11 July 2022

(This article belongs to the Special Issue Wastewater Treatment Technologies and Analysis)

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Abstract

The magnetic biochar material CoFe₂O₄/PCPS (peanut shell powder) was prepared based on the hybrid calcination method. The properties of prepared composites and the extraction effect of magnetic solid phase extraction on phenoxy carboxylic acid herbicides were assessed. The morphology, crystal structure, specific surface area, and pore size distribution of the material were analysed using a transmission electron microscope (TEM), infrared Fourier transform infrared spectroscopy (FTIR), X-ray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and N₂ absorption surface analysis (BET). The results of the magnetic solid phase extraction of a variety of phenoxy carboxylic acid herbicides in water using CoFe₂O₄/PCPS composites showed that, when the mass ratio of CoFe₂O₄ and PCPS was 1:1, 40 mg of the composite was used, and the adsorption time was 10 min at pH 8.50. Methanol was used as the eluent, and the recovery rates of the three phenoxy carboxylic acid herbicides were maintained at 81.95–99.07%. Furthermore, the actual water sample analysis results showed that the established method had good accuracy, stability, and reliability.

Keywords: magnetic biochar material; phenoxy carboxylic acid herbicides; magnetic solid phase extraction; actual water sample

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MDPI and ACS Style

Ji, D.; Huang, Z.; Du, B. Synthesis of CoFe₂O₄/Peanut Shell Powder Composites and the Associated Magnetic Solid Phase Extraction of Phenoxy Carboxylic Acid Herbicides in Water. Int. J. Environ. Res. Public Health 2022, 19, 8450. https://doi.org/10.3390/ijerph19148450

AMA Style

Ji D, Huang Z, Du B. Synthesis of CoFe₂O₄/Peanut Shell Powder Composites and the Associated Magnetic Solid Phase Extraction of Phenoxy Carboxylic Acid Herbicides in Water. International Journal of Environmental Research and Public Health. 2022; 19(14):8450. https://doi.org/10.3390/ijerph19148450

Chicago/Turabian Style

Ji, Dongliang, Zhaoqin Huang, and Buyun Du. 2022. "Synthesis of CoFe₂O₄/Peanut Shell Powder Composites and the Associated Magnetic Solid Phase Extraction of Phenoxy Carboxylic Acid Herbicides in Water" International Journal of Environmental Research and Public Health 19, no. 14: 8450. https://doi.org/10.3390/ijerph19148450

APA Style

Ji, D., Huang, Z., & Du, B. (2022). Synthesis of CoFe₂O₄/Peanut Shell Powder Composites and the Associated Magnetic Solid Phase Extraction of Phenoxy Carboxylic Acid Herbicides in Water. International Journal of Environmental Research and Public Health, 19(14), 8450. https://doi.org/10.3390/ijerph19148450

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

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Synthesis of CoFe₂O₄/Peanut Shell Powder Composites and the Associated Magnetic Solid Phase Extraction of Phenoxy Carboxylic Acid Herbicides in Water

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