Fig. 1: Abiotic precipitation and characterizations of black precipitates under normal temperature and alkaline conditions. | Nature Communications

Fig. 1: Abiotic precipitation and characterizations of black precipitates under normal temperature and alkaline conditions.

From: Back to chromite as a mineralogical strategy for long-term chromium pollution control

Fig. 1: Abiotic precipitation and characterizations of black precipitates under normal temperature and alkaline conditions.The alternative text for this image may have been generated using AI.

a Fe(III), Cr(III), and Fe(II) co-precipitate under alkaline conditions to form black precipitates. b TEM-EDS analysis of the precipitates. c Cr K edge XANES spectra of the precipitates, FeCr2O4 and Cr2O3. d Mössbauer spectra analysis of the precipitates. Source data are provided as a Source Data file.

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