September 10, 2025Materials ResearchOpen Access

FTIR and Raman Spectroscopic Characterization of Anionic Clays Obtained from Bauxite Tailings (Amazon, Brazil)

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This analysis utilizes bauxite tailings to synthesize anionic clays, highlighting the role of layered double hydroxides and X-ray diffraction.

Synthesis of anionic clays showed distinct properties based on metal composition, and potential applications in technology.
Characteristic bands identified through FTIR and Raman spectroscopy reflect significant structural organization variations.
X-ray diffraction confirmed the formation of layered double hydroxide phases from bauxite tailings as starting material.
Scanning electron microscopy highlighted morphological differences in MgAlFe and ZnAlFe LDHs.

Figueira et al. (2025) studied this question.

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This analysis utilizes bauxite tailings to synthesize anionic clays, highlighting the role of layered double hydroxides and X-ray diffraction.