Using Phosphogypsum as a Source of Calcium Sulfate When Synthesizing Calcium Molybdate Nanoparticles

Autor: Youssef Belaoufi, Meryem Bensemlali, Badreddine Hatimi, Halima Mortadi, Najoua Labjar, Jean-Michel Nunzi, Mohammed El Idrissi, Abdellatif Aarfane, Mina Bakasse, Hamid Nasrellah
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Reactions, Vol 5, Iss 3, Pp 462-471 (2024)
Druh dokumentu: article
ISSN: 2624-781X
DOI: 10.3390/reactions5030024
Popis: Calcium molybdate (CaMoO4) is of significant interest due to its unique properties and numerous industrial applications, such as catalysis, electrochemistry, and optoelectronics. In this study, we developed an economical and environmentally friendly method to synthesize calcium molybdate from Moroccan phosphogypsum (PG) industrial waste and sodium molybdate, all at room temperature. Comprehensive analysis through X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), Raman vibrational spectroscopy, and scanning electron microscopy (SEM) revealed the high purity of the synthesized calcium molybdate, with particle sizes of only 12 nm. Additionally, optical characteristics were studied using ultraviolet-visible spectroscopy (UV-vis), which showed an optical band gap of Egap = 3.96 eV for CaMoO4. These results confirm the successful synthesis of calcium molybdate nanoparticles from Moroccan phosphogypsum, demonstrating an effective pathway to valorize this industrial waste into a valuable material. This approach contributes to environmental sustainability by reducing dependence on rare chemicals while offering innovative solutions for the industry’s sustainable development.
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