TY - JOUR
T1 - Fe(II) Redox Chemistry in the Environment
AU - Huang, Jianzhi
AU - Jones, Adele
AU - Waite, T. David
AU - Chen, Yiling
AU - Huang, Xiaopeng
AU - Rosso, Kevin M.
AU - Kappler, Andreas
AU - Mansor, Muammar
AU - Tratnyek, Paul G.
AU - Zhang, Huichun
N1 - Funding Information:
H.Z. acknowledges the support by the National Science Foundation under Grants CBET-1762691 and CHE-1762686. K.M.R. and X.H. acknowledge support by the U.S. Department of Energy (DOE), Office of Science, Office of Basic Energy Sciences, Chemical Sciences, Geosciences & Biosciences Division through its Geosciences Program at Pacific Northwest National Laboratory (PNNL). P.G.T.’s contributions were funded via NSF grant 1708513 and SERDP grant ER-20-1357. The authors are thankful to Anke Neumann from Newcastle University and Michelle Scherer from University of Iowa for their valuable suggestions.
Publisher Copyright:
© 2021 American Chemical Society.
PY - 2021/7/14
Y1 - 2021/7/14
N2 - Iron (Fe) is the fourth most abundant element in the earth's crust and plays important roles in both biological and chemical processes. The redox reactivity of various Fe(II) forms has gained increasing attention over recent decades in the areas of (bio) geochemistry, environmental chemistry and engineering, and material sciences. The goal of this paper is to review these recent advances and the current state of knowledge of Fe(II) redox chemistry in the environment. Specifically, this comprehensive review focuses on the redox reactivity of four types of Fe(II) species including aqueous Fe(II), Fe(II) complexed with ligands, minerals bearing structural Fe(II), and sorbed Fe(II) on mineral oxide surfaces. The formation pathways, factors governing the reactivity, insights into potential mechanisms, reactivity comparison, and characterization techniques are discussed with reference to the most recent breakthroughs in this field where possible. We also cover the roles of these Fe(II) species in environmental applications of zerovalent iron, microbial processes, biogeochemical cycling of carbon and nutrients, and their abiotic oxidation related processes in natural and engineered systems.
AB - Iron (Fe) is the fourth most abundant element in the earth's crust and plays important roles in both biological and chemical processes. The redox reactivity of various Fe(II) forms has gained increasing attention over recent decades in the areas of (bio) geochemistry, environmental chemistry and engineering, and material sciences. The goal of this paper is to review these recent advances and the current state of knowledge of Fe(II) redox chemistry in the environment. Specifically, this comprehensive review focuses on the redox reactivity of four types of Fe(II) species including aqueous Fe(II), Fe(II) complexed with ligands, minerals bearing structural Fe(II), and sorbed Fe(II) on mineral oxide surfaces. The formation pathways, factors governing the reactivity, insights into potential mechanisms, reactivity comparison, and characterization techniques are discussed with reference to the most recent breakthroughs in this field where possible. We also cover the roles of these Fe(II) species in environmental applications of zerovalent iron, microbial processes, biogeochemical cycling of carbon and nutrients, and their abiotic oxidation related processes in natural and engineered systems.
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U2 - 10.1021/acs.chemrev.0c01286
DO - 10.1021/acs.chemrev.0c01286
M3 - Review article
C2 - 34143612
AN - SCOPUS:85110055622
SN - 0009-2665
VL - 121
SP - 8161
EP - 8233
JO - Chemical Reviews
JF - Chemical Reviews
IS - 13
ER -