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Redox Characterization of the Surfaces of Seven Iron-Bearing Minerals: Use of Molecular Probes and UV-Visible Spectroscopy
Electron activity Indicators Iron-beating minerals Redox potential Surface acidity UV-visible spectroscopy
2011/12/27
Redox properties of iron-bearing mineral surfaces may play an important role in controlling the transport and transformation of pollutants into ground waters. Suspensions of seven iron-bearing mineral...
Visible Spectroscopy of Methylene Blue on Hectorite, Laponite B, and Barasym in Aqueous Suspension
Adsorption Barasym Hectorite Laponite Methylene blue Sepiolite Visible spectroscopy
2012/1/9
The absorption spectra of methylene blue ion exchanged on hectorite, Laponite B, Barasym, or sepiolite in dilute aqueous suspensions show the presence of the monomer, the protonated monomer, the dimer...