Physics Maths Engineering
Vivianite is a hydrated iron phosphate mineral (Fe3(PO4)2·8H2O), crystallized in a monoclinic system. It is the endmember of a mineral series known as the vivianite group, where minerals have the general formula A3(XO4)2·8H2O, A is a divalent metal cation and X is phosphorus P or arsenic As. Today, vivianite is attracting interest as a promising material for recovering phosphorous from wastewaters. In fact, the presence in wastewater sludges of soluble iron and phosphorus can lead to vivianite formation. As a crystal, it is a naturally occurring Van der Walls material. It can be easily characterized by means of Raman and infrared spectroscopies. Here we will consider the Raman spectroscopy, precisely that related to the hydroxyl-stretching region. We will propose the deconvolutions in q-Gaussian functions of spectra from RRUFF database, comparing the obtained results with those available from literature. Besides vivianite, we will consider also baricite and bobierrite for comparison (baricite and bobierrite are two other members of the vivianite group). About the hydroxyl-stretching region and the use of q-Gaussians, we take the chance to continue a discussion regarding the Raman spectroscopy of water, discussion that we started in March 2024.
The study focuses on analyzing the hydroxyl-stretching region in the Raman spectra of minerals belonging to the vivianite group, utilizing q-Gaussian functions for spectral deconvolution.
The research examines vivianite, baricite, and bobierrite, which are members of the vivianite mineral group.
The study employs deconvolution of Raman spectra using q-Gaussian functions, comparing the results with existing literature data.
Utilizing q-Gaussian functions allows for a more nuanced analysis of the Raman spectra, particularly in the hydroxyl-stretching region, facilitating a deeper understanding of the spectral characteristics of these minerals.
This study extends the discussion on Raman spectroscopy of water and related minerals, providing insights into the spectral properties of vivianite group minerals and demonstrating the application of q-Gaussian deconvolution in spectral analysis.
Show by month | Manuscript | Video Summary |
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2025 April | 4 | 4 |
2025 March | 65 | 65 |
2025 February | 43 | 43 |
2025 January | 55 | 55 |
2024 December | 59 | 59 |
2024 November | 71 | 71 |
2024 October | 27 | 27 |
Total | 324 | 324 |
Show by month | Manuscript | Video Summary |
---|---|---|
2025 April | 4 | 4 |
2025 March | 65 | 65 |
2025 February | 43 | 43 |
2025 January | 55 | 55 |
2024 December | 59 | 59 |
2024 November | 71 | 71 |
2024 October | 27 | 27 |
Total | 324 | 324 |