The mineral-organo composites control the speciation, mobility and bioavailability of heavy
metals in soils and sediments by surface adsorption and precipitation. The dynamic changes …

Synchrotron-based X-ray absorption spectroscopy (XAS) is an in situ, minimallydestructive,
element-specific, molecular-scale structural probe that has been employed to study the …

Carbonaceous materials are commonly used in agronomic and environmental applications
primarily as geosorbents, but their redox properties that may affect biogeochemical reactions …

Green rust (GR) as highly reactive iron mineral potentially plays a key role for the fate of (in)
organic contaminants, such as chromium or arsenic, and nitroaromatic compounds …

Arsenic (As) in soils and sediments is commonly mobilized when anoxic conditions promote
microbial iron (Fe) and As reduction. Recent laboratory studies and field observations have …

To reduce the adverse effects of arsenic on humans, various technologies are used to
remove arsenic from groundwater, most relying on As adsorption on Fe-(oxyhydr) oxides …

Previous studies have shown that the oxidation of Fe (II) by molecular oxygen can lead to
the co-oxidation of As (III) at neutral pH. However, the mechanism of As (III) oxidation in the …

Ferrihydrite (Fh) is a short-range ordered nanocrystalline iron (III)(oxyhydr) oxide that has
been recognized to play an important role in contaminant sequestration and in iron cycling …

Due to their redox reactivity, surface sorption characteristics, and ubiquity as corrosion
products or as minerals in natural sediments, iron (II)-bearing minerals control to a large …

Microbial reduction of Fe (III) oxides results in the production of Fe (II) and may lead to the
subsequent formation of Fe (II)-bearing secondary mineralization products including …