Fe atom exchange between aqueous Fe2+ and magnetite

Environmental Science & Technology
Christopher A GorskiMichelle M Scherer

Abstract

The reaction between magnetite and aqueous Fe(2+) has been extensively studied due to its role in contaminant reduction, trace-metal sequestration, and microbial respiration. Previous work has demonstrated that the reaction of Fe(2+) with magnetite (Fe(3)O(4)) results in the structural incorporation of Fe(2+) and an increase in the bulk Fe(2+) content of magnetite. It is unclear, however, whether significant Fe atom exchange occurs between magnetite and aqueous Fe(2+), as has been observed for other Fe oxides. Here, we measured the extent of Fe atom exchange between aqueous Fe(2+) and magnetite by reacting isotopically "normal" magnetite with (57)Fe-enriched aqueous Fe(2+). The extent of Fe atom exchange between magnetite and aqueous Fe(2+) was significant (54-71%), and went well beyond the amount of Fe atoms found at the near surface. Mössbauer spectroscopy of magnetite reacted with (56)Fe(2+) indicate that no preferential exchange of octahedral or tetrahedral sites occurred. Exchange experiments conducted with Co-ferrite (Co(2+)Fe(2)(3+)O(4)) showed little impact of Co substitution on the rate or extent of atom exchange. Bulk electron conduction, as previously invoked to explain Fe atom exchange in goethite, is a possible mec...Continue Reading

References

Sep 18, 1999·Science·B L BeardC Aguilar
May 8, 2002·Environmental Science & Technology·Shawn G BennerScott Fendorf
Feb 19, 2004·Environmental Science & Technology·Martin ElsnerStefan B Haderlein
Oct 19, 2004·Environmental Science & Technology·Aaron G B Williams, Michelle M Scherer
Oct 6, 2005·Environmental Science & Technology·Colleen M HanselScott Fendorf
Nov 22, 2005·Environmental Science & Technology·Chan Lan ChunWilliam A Arnold
Feb 22, 2007·Environmental Science & Technology·Philip Larese-Casanova, Michelle M Scherer
Mar 8, 2008·Science·Svetlana V Yanina, Kevin M Rosso
Apr 12, 2008·Science·Carrick M Eggleston
Dec 17, 2008·Environmental Science & Technology·Katharine J TufanoScott Fendorf
Mar 27, 2009·Environmental Science & Technology·Robert M HandlerMichelle M Scherer
Jun 24, 2009·Environmental Science & Technology·Christopher A Gorski, Michelle M Scherer
Aug 8, 2009·Journal of the American Chemical Society·Eric M VillaWilliam H Casey
Dec 17, 2009·Environmental Science & Technology·Thomas BorchKate Campbell
Dec 31, 2009·Environmental Science & Technology·Thomas BorchRuben Kretzschmar
Dec 31, 2009·Environmental Science & Technology·Christopher A GorskiMichelle M Scherer
Dec 31, 2009·Environmental Science & Technology·Eugene S IltonAndrew R Felmy
Jun 18, 2010·Environmental Science & Technology·Li YangJohn R Bargar
Jan 8, 2011·Environmental Science & Technology·Daniel D BolandT David Waite
Feb 8, 2011·Environmental Science & Technology·Lingling WuClark M Johnson
Sep 1, 1995·Environmental Science & Technology·J KlausenR P Schwarzenbach

❮ Previous
Next ❯

Citations

Sep 12, 2012·Environmental Science & Technology·Drew E LattaMichelle M Scherer
Apr 20, 2013·Environmental Science & Technology·Drew E LattaMaxim I Boyanov
Jun 24, 2014·The Journal of Chemical Physics·Vitaly Alexandrov, Kevin M Rosso
Nov 28, 2012·Biochemical Society Transactions·Drew E LattaMichelle M Scherer
Jun 2, 2016·Environmental Science & Technology·Andrew J FrierdichMichelle M Scherer
Jun 28, 2016·Environmental Science & Technology·Prachi Joshi, Christopher A Gorski
Jul 14, 2016·Environmental Science & Technology·Mulu A KebedeJonathan D Raff
Aug 30, 2016·Environmental Science & Technology·Nicolas FinckMichel L Schlegel
Sep 19, 2015·Physical Chemistry Chemical Physics : PCCP·Diana ToczydłowskaPiotr Zarzycki
Feb 27, 2014·Nature Communications·A BoseP R Girguis
Sep 6, 2017·Environmental Science. Processes & Impacts·Brittany L HuhmannMichelle M Scherer
Feb 12, 2019·Nature Communications·Ke YuanPaul Fenter
Dec 7, 2017·Geochemical Transactions·Michael V SchaeferMichelle M Scherer
Nov 10, 2018·Environmental Science and Pollution Research International·Cong FanZhi Dang
Aug 3, 2020·Journal of Hazardous Materials·Reto Gubler, Laurel K ThomasArrigo
Jun 19, 2021·Chemical Reviews·Jianzhi HuangHuichun Zhang
Jul 21, 2021·Environmental Science & Technology·Evert J Elzinga
Apr 10, 2015·Environmental Science & Technology·Michael SanderChristopher A Gorski
Sep 13, 2017·Environmental Science & Technology·Prachi JoshiChristopher A Gorski
Nov 14, 2019·Environmental Science & Technology·Laurel K ThomasArrigoRuben Kretzschmar
Feb 7, 2018·Environmental Science & Technology·Luiza NotiniMichelle M Scherer
Sep 24, 2014·Environmental Science & Technology·Robert M HandlerMichelle M Scherer
Jun 13, 2015·Environmental Science & Technology·Andrew J FrierdichMichelle M Scherer
Sep 10, 2014·Environmental Science & Technology·Andrew L SwindleMourad Benamara
Feb 12, 2015·Environmental Science & Technology·Anke NeumannMichelle M Scherer
Dec 21, 2018·Environmental Science & Technology·Jagannath BiswakarmaStephan J Hug
Dec 5, 2017·Environmental Science & Technology·Meret AeppliMichael Sander

❮ Previous
Next ❯

Related Concepts

Related Feeds

Cardiac Conduction System

The cardiac conduction system is a specialized tract of myocardial cells responsible for maintaining normal cardiac rhythm. Discover the latest research on the cardiac conduction system here.