Evidence of a new phase in gypsum–anhydrite transformations under microwave heating by<i>in situ</i>dielectric analysis and Raman spectroscopy

López-Buendía, Ángel M.; García-Baños, Beatriz; Urquiola, M.M.; Catalá-Civera, J.M.; Peñaranda‐Foix, Felipe L.

doi:10.1039/d0cp04926c

Cited by 6 publications

(1 citation statement)

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“…The presence of hemihydrate gypsum and anhydrous gypsum crystal surface fine particles leads to a significant reduction, thereby enhancing the mechanical properties. Notably, β-hemihydrate gypsum and anhydrous gypsum crystals exhibit a plate or sheet-like structure similar to PG, facilitating their preparation [20,21] . The αhemihydrate gypsum exhibits a hexagonal prism shape that is more regular, resulting in superior mechanical properties [22] .…”

Section: Introductionmentioning

confidence: 99%

Application and Development Prospects of Phosphogypsum in Different Phases: A Review

Ma,

Zhang,

Wang

et al. 2023

Preprint

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The phosphogypsum (PG) pile of solid waste is of immense proportions and poses a grave threat to the ecological environment, with its reserves steadily increasing year after year. The urgent need for large-scale consumption and high-quality utilization of PG in industrial production has become apparent. The present study provides a comprehensive analysis of the correlation be-tween the macroscopic mechanical properties and microstructure of PG, elucidating the crystal morphology characteristics in different phases and outlining the crystallization preparation pro-cess. By integrating the physical and chemical properties of diverse PG phases with the intricacies associated with its preparation process, it is imperative to explore avenues for its high-value utili-zation, investigate possibilities for industrial-scale production, and analyze and predict the appli-cation trends and developmental directions in comprehensive PG utilization. These endeavors hold immense significance in guiding the realization of resource utilization potential inherent in PG.

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Section: Introductionmentioning

confidence: 99%

Application and Development Prospects of Phosphogypsum in Different Phases: A Review

Ma,

Zhang,

Wang

et al. 2023

Preprint

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Quasi–1D Anhydrite Nanobelts from the Sustainable Liquid Exfoliation of Terrestrial Gypsum for Future Martian‐Based Electronics

Wei,

Roy,

Aljarid

et al. 2023

Adv Funct Materials

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The sky is the limit with regards to the societal impact nanomaterials can have on the lives. However, in this study, it is shown that their potential is out of this world. The planet Mars has an abundant source of calcium sulfate minerals and in this work, it is shown that these deposits can be the basis of transformative nanomaterials to potentially support future space endeavors. Vitally, the methods applied are low cost and require no specialized instruments of great expertise, strengthening the potential involvement of nanotechnology in sustaining Martian inhabitation. Through a scalable eco‐friendly liquid processing technique performed on two common terrestrial gypsum, this simple method presented a cost‐efficient procedure to yield suspensions of large aspect ratio anhydrite nanobelts with long‐term stability that are characterized through scanning electron microscopy and Raman spectroscopy. Transmission electron microscopy shows nanobelts to have a mesocrystal structure, with distinct nanoparticle constituents making up the lattice. Unexpectedly, anhydrite nanobelts have remarkable electronic properties, namely a bandgap that is easily tuned between semiconducting (≈2.2 eV) and insulating (≈4 eV) behaviors through dimensional control measured via atomic force microscopy. To demonstrate the application potential of the nanobelts; optoelectronic, electrochemical, and nanocomposite measurements are made.

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Chromium removal from chromium gypsum through microwave hydrothermal crystal phase regulation

Liao,

Li,

et al. 2023

Environ Sci Pollut Res

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Evidence of a new phase in gypsum–anhydrite transformations under microwave heating byin situdielectric analysis and Raman spectroscopy

Abstract: New insights into mineral transformations under microwave heating through advanced in situ dielectric and Raman analysis.

Cited by 6 publications

References 57 publications

Application and Development Prospects of Phosphogypsum in Different Phases: A Review

Application and Development Prospects of Phosphogypsum in Different Phases: A Review

Quasi–1D Anhydrite Nanobelts from the Sustainable Liquid Exfoliation of Terrestrial Gypsum for Future Martian‐Based Electronics

Chromium removal from chromium gypsum through microwave hydrothermal crystal phase regulation

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