Schwertmannite: A review of its occurrence, formation, structure, stability and interactions with oxyanions

VA Schoepfer, ED Burton - Earth-Science Reviews, 2021 - Elsevier
In this article, we provide a critical review on the occurrence, formation, structure and stability
of schwertmannite–an enigmatic Fe (III) oxyhydroxy-sulfate mineral that is of widespread …

Activation of persulfate by nanosized zero-valent iron (NZVI): mechanisms and transformation products of NZVI

C Kim, JY Ahn, TY Kim, WS Shin… - Environmental Science & …, 2018 - ACS Publications
The mechanisms involved in the activation of persulfate by nanosized zero-valent iron
(NZVI) were elucidated and the NZVI transformation products identified. Two distinct reaction …

[HTML][HTML] Past, present and future global influence and technological applications of iron-bearing metastable nanominerals

MA Caraballo, MP Asta, JPH Perez, MF Hochella Jr - Gondwana Research, 2022 - Elsevier
Iron-bearing nanominerals such as ferrihydrite, schwertmannite, and green rust behave as
metastable precursors leading to the formation of more thermodynamically stable iron …

Arsenic-imposed effects on schwertmannite and jarosite formation in acid mine drainage and coupled impacts on arsenic mobility

ED Burton, N Karimian, SG Johnston… - ACS Earth and Space …, 2021 - ACS Publications
This study explores interactions between As and Fe (III) minerals, predominantly
schwertmannite and jarosite, in acid mine drainage (AMD) via observations at a former mine …

Sulfate local coordination environment in schwertmannite

X Wang, C Gu, X Feng, M Zhu - Environmental Science & …, 2015 - ACS Publications
Schwertmannite, a nanocrystalline ferric oxyhydroxy-sulfate mineral, plays an important role
in many environmental geochemical processes in acidic sulfate-rich environments. The …

[HTML][HTML] The mobility of thorium, uranium and rare earth elements from Mid Ordovician black shales to acid waters and its removal by goethite and schwertmannite

E Santofimia, FJ González, B Rincón-Tomás… - Chemosphere, 2022 - Elsevier
Previous studies have addressed the occurrence of Acid Rock Drainage (ARD) affecting La
Silva stream due to the generation of large dumps of Middle Ordovician black shales during …

Iron, manganese and aluminium oxides and oxyhydroxides

V Barrón, J Torrent - 2013 - pubs.geoscienceworld.org
Nanosized iron, manganese and aluminium oxides are abundant in soils and sediments, but
are also present in water and air, and are even produced within living organisms. These …

Schwertmannite stability in anoxic Fe (II)-rich aqueous solution

S Paikaray, C Schröder, S Peiffer - Geochimica et Cosmochimica Acta, 2017 - Elsevier
Schwertmannite (SHM) is a powerful scavenger for As (III) leading to As (III)-enriched
precipitates around acid mine drainage environments that may become exposed to aqueous …

Metastability, nanocrystallinity and pseudo-solid solution effects on the understanding of schwertmannite solubility

MA Caraballo, JD Rimstidt, F Macías, JM Nieto… - Chemical …, 2013 - Elsevier
The role of metastable nanocrystalline precursors, like schwertmannite, in iron and sulfate
rich acidic waters is commonly underestimated or even neglected. In addition to …

Nanocomposite structure of two-line ferrihydrite powder from total scattering

NP Funnell, MF Fulford, S Inoué… - Communications …, 2020 - nature.com
Ferrihydrite is one of the most important iron-containing minerals on Earth. Yet determination
of its atomic-scale structure has been frustrated by its intrinsically poor crystallinity. The key …