Journal
GONDWANA RESEARCH
Volume 110, Issue -, Pages 283-304Publisher
ELSEVIER
DOI: 10.1016/j.gr.2021.11.009
Keywords
Ferrihydrite; Schwertmannite; Green rust; Nanotechnology; Nanogeosciences
Categories
Funding
- Advanced Mining Technology Center (AMTC) from Universidad de Chile
- National Agency for Research and Development, ANID
- Spanish Ministry of Science and Innovation [AFB180004]
- European Union's Horizon 2020 MarieSklodowska-Curie Innovative Training Network [RYC2019-026496-I]
- Helmholtz Recruiting Initiative [675219]
- Junta de Andalucia
- Universidad de Huelva / CBUA
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This review provides an overview of the properties, applications, and environmental significance of iron-bearing nanominerals such as ferrihydrite, schwertmannite, and green rust. It discusses their role in various Earth environments and their potential in technological applications and promoting sustainable development.
Iron-bearing nanominerals such as ferrihydrite, schwertmannite, and green rust behave as metastable precursors leading to the formation of more thermodynamically stable iron mineral phases (e.g., jarosite, goethite, hematite, and magnetite). However, this transformation may last from days to tens or even hun-dreds of years, making them the most predominant iron-bearing minerals at environmental conditions and at the human time scale. The present review characterizes ferrihydrite, schwertmannite, and green rust nanominerals according to their main physical and chemical properties, and at both nano-and meso- scales. It also presents a comprehensive review of the multiple past and present Earth environments where these nanominerals have played, and still play, a pivotal role in the geochemistry, mineralogy and environmental nanogeosciences of these environments. Finally, the present and future technological applications of these nanominerals as well as their role in the generation of a more sustainable human -Earth relationship is discussed, with a special emphasis on their use in new circular economies and green based technologies. (c) 2021 The Authors. Published by Elsevier B.V. on behalf of International Association for Gondwana Research. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/ 4.0/).
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