Mn oxides (MnOx) are ubiquitous metal oxide minerals in nearly all environmental settings.
They play important roles in the transport and fate of many environmental components such …

Birnessite, a layered manganese (Mn) oxide, possesses extraordinary metal adsorption and
oxidation activity, and thus imposes impacts on many biogeochemical processes. The …

We investigated the effect of pH (5.5–8.5) on the mineralogical transformation of hexagonal
birnessite induced by reaction with aqueous Mn (II)(50–2200 μM), using batch sorption …

Manganese (Mn) oxides, such as birnessite (δ-MnO2), are ubiquitous mineral phases in
soils and sediments that can interact strongly with antimony (Sb). The reaction between …

Layered manganese (Mn) oxides, such as birnessite, can reductively transform into other
phases and thereby affect the environmental behavior of Mn oxides. Solution chemistry …

Mn oxides (MnO x) are a group of ubiquitous metal oxides in the environment and can
significantly affect the biogeochemical cycles of metals, nutrients, and contaminants. Due to …

Reaction of aqueous Mn (II) with hexagonal birnessite at pH 7.5 causes reductive
transformation of birnessite into feitknechtite (β-MnIIIOOH) and manganite (γ-MnIIIOOH) …

Natural hexagonal birnessites are enriched in various transition metals (TMs). Many studies
have examined the effects of single metal doping on the structures and properties of …

As the dominant manganese oxide mineral phase in terrestrial and aquatic environments,
birnessite plays an important role in many biogeochemical processes. The coexistence of …

The structure and Mn (III) concentration of birnessite dictate its reactivity and can be
changed by birnessite partial reduction, but effects of pH and reductant/birnessite ratios on …