Study of Modified Magnesium Phosphate Cement for Fluoride Removal

In this study, we used a novel composite material based on magnesium phosphate cement (MPC) to explore the retention of fluoride from used water. Dead-burned magnesium oxide (MgO), ammonium dihydrogen phosphate (NH4H2PO4), and a few retarders were used to create this particular substance. Several st...

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Bibliographic Details
Published inMaterials Vol. 16; no. 17; p. 5749
Main Authors Gharsallah, Sana, Mallah, Abdulrahman, Alsawi, Abdulrahman, Hammami, Bechir, Khitouni, Mohamed, Charnay, Clarence, Chemingui, Mahmoud
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 22.08.2023
MDPI
Subjects
Adsorption
Aluminum
Ammonium dihydrogen phosphate
Cement
Chemical Sciences
Composite materials
Diffraction
Drinking water
fluoride adsorption
Fluorides
Fourier transforms
Heavy metals
Infrared analysis
Infrared spectroscopy
isotherms
Magnesium
Magnesium oxide
Magnesium phosphate
magnesium phosphate cement (MPC)
Membrane separation
Nuclear power plants
Phosphates
Radioactive wastes
Retarders
Scanning electron microscopy
Superconductors (materials)
Thermogravimetric analysis
X-rays
France
United Kingdom > UK
United States > US
Germany
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Summary:In this study, we used a novel composite material based on magnesium phosphate cement (MPC) to explore the retention of fluoride from used water. Dead-burned magnesium oxide (MgO), ammonium dihydrogen phosphate (NH4H2PO4), and a few retarders were used to create this particular substance. Several studies have corroborated the performance of using aluminum in the capture of fluoride. From this perspective, we attempted to reinforce our matrix with different quantities of aluminum, which increased the resistance of the composite in water. The optimal conditions that were obtained were evaluated and scrutinized using a range of techniques, including scanning electron microscopy (SEM), X-ray diffraction (XRD), thermogravimetric analysis (TGA), Fourier transforms infrared spectroscopy (FTIR), and Brunauer–Emmett–Teller (BET). The adsorbents demonstrated a powerful ability to remove fluoride from contaminated water and the defluoridation capacity was evaluated at 4.84 mg/g. Equilibrium modeling was carried out, and the experimental data were expressed in accordance with the Langmuir, Freundlich, Temkin, and Dubinin–Radushkevich isotherms.
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ISSN:1996-1944
1996-1944
DOI:10.3390/ma16175749