While the oxidative capacity of nanostructured birnessite-type manganese oxide has been
widely investigated, no comprehensive work exists on the combined effects of dissolved Mn …

Hexagonal birnessite is the most ubiquitous manganese oxide in geological environments. It
is often highly enriched in trace metal ions such as Ni and plays an important role in metal …

Birnessites precipitated by bacteria are typically poorly crystalline Mn (IV) oxides enmeshed
within biofilms to form complex biomass–birnessite assemblages. The strong sorption affinity …

Antimony (Sb) pollution in water has attracted extensive attention due to the biotoxicity of Sb.
Secondary iron minerals readily sorb heavy metal (loid) s and critically affect their cycling in …

The present study is an investigation into the surface reactions of synthetic birnessite [Mn (II)
0.05 Mn (III) 0.25 Mn (IV) 0.7 O1. 7 (OH) 0.25] when reacted with dilute (5× 10− 4 M) Na …

Antimony (Sb) accumulation in soil poses great potential risk to ecological environment, and
its mobilization, transformation and bioavailability are controlled by its fractions and species …

Hexagonal turbostratic birnessite, with the characteristics of high contents of vacancies,
varying amounts of structural and adsorbed Mn 3+, and small particle size, undergoes …

In this study, we investigated the behavior of Sb (V) during the transformation of poorly
crystalline Fe (III) oxyhydroxides (two-line ferrihydrite) with various Sb/Fe molar ratios at pH …

During the reaction of arsenite (As (III)) with δ-MnO2 (a typically poorly crystalline
phyllomanganate), a significant decrease in the oxidation rate is frequently observed, which …

The amount of Mn2+ adsorbed or removed from solution by birnessite is several times
greater than its reported cation exchange capacity. Extractability of the sorbed Mn2+ …