Matériaux & Techniques
Volume 110, Number 1, 2022
|Number of page(s)||5|
|Section||Matériaux inorganiques / Inorganic materials|
|Published online||20 April 2022|
Novel synthesis and characterization of crystalline fluorapatite from Moroccan phosphogypsum waste
Laboratoire de Chimie Organique Bioorganique et Environnement, Faculté de Sciences, Université Chouaib Doukkali,
El Jadida, Morocco
2 École Supérieure de l’Éducation et de la Formation, Université Chouaib Doukkali, El Jadida, Morocco
3 Univ. Hassan I, Laboratoire de Chimie et Modélisation Mathématique, Faculté Polydisciplinaire, 25000 Khouribga, Morocco
* e-mail: email@example.com
Accepted: 21 January 2022
In the present study, phosphogypsum waste (PG) was utilized to synthesize fluorapatite (FAP) via a simple precipitation method. The FAP was prepared using a novel mixing technique with anhydrite obtained from PG and phosphoric acid solution in the presence of pure fluoride ammonium in a Teflon reactor. The characteristics of the prepared FAP were investigated with various methods including Scanning Electron Microscopy (SEM) coupled with Energy-Dispersive Spectroscopy (EDS), X-Ray Diffraction (XRD), and Fourier Transform Infrared Spectroscopy (FTIR). The FAP derived from PG exhibited a hexagonal structure with a particle size ranging from 1.5 to 9 μm along with a high purity. FAP also showed an excellent Ca/P ratio equals to 1.67. These results proved that the FAP was successfully synthesized from phosphogypsum waste.
Key words: fluorapatite / phosphogypsum / materials / mechanochemical
© SCF 2022
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