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Geochemical behaviors of heavy metal contaminants, such as Cu2+, are strongly controlled by natural birnessite-like minerals in both marine and terrestrial environments. However, the mechanisms of the interaction of Cu2+ with birnessite are not fully understood yet. In the present study, Cu2+ was coprecipitated with Mn2+ to produce hexagonal turbostratic birnessite, which is analogous to natural birnessite...
Despite its presence in limited amounts, birnessite has a wide spread distribution and is often highly enriched in trace metals such as Co in diverse geological environments. This study investigated the effects of Co doping on the layer structure and properties of birnessites synthesized through the oxidation of Mn2+ by O2 under alkaline conditions, by using powder X-ray diffraction (XRD) and X-ray...
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