| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Kasama, Takeshi
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (29/29 displayed)
- 2019Electron holographycitations
- 2018Optimal microstructural design for high thermal stability of pure FCC metals based on studying effect of twin boundaries character and network of grain boundariescitations
- 2018Optimal microstructural design for high thermal stability of pure FCC metals based on studying effect of twin boundaries character and network of grain boundariescitations
- 2018Probing the chemistry of adhesion between a 316L substrate and spin-on-glass coatingcitations
- 2018Mechanisms of Se(IV) Co-precipitation with Ferrihydrite at Acidic and Alkaline Conditions and Its Behavior during Agingcitations
- 2018Magnetically activated microcapsules as controlled release carriers for a liquid PDMS cross-linkercitations
- 2018Transformation of iron containing constituent intermetallic particles during hydrothermal treatment
- 2017Mechanical properties of multilayer Ni-Fe and Ni-Fe-Al2O3 nanocomposite coatingcitations
- 2017Mechanical properties of multilayer Ni-Fe and Ni-Fe-Al 2 O 3 nanocomposite coatingcitations
- 2016Origin of Spontaneous Core-Shell AIGaAs Nanowires Grown by Molecular Beam Epitaxycitations
- 2015Influence of aging products on tensile deformation behavior of Al-0.62 mass%Mg-0.32 mass%Si alloycitations
- 2014Interferometric methods for mapping static electric and magnetic fieldscitations
- 2014Transmission electron microscopy of unstained hybrid Au nanoparticles capped with PPAA (plasma-poly-allylamine):Structure and electron irradiation effectscitations
- 2014Transmission electron microscopy of unstained hybrid Au nanoparticles capped with PPAA (plasma-poly-allylamine)citations
- 2014Off-axis electron holography of ferromagnetic multilayer nanowirescitations
- 20143D visualization of TiO2 nanocrystals in mesoporous nanocomposite using energy filtered transmission electron microscopy tomographycitations
- 2014Towards quantitative off-axis electron holographic mapping of the electric field around the tip of a sharp biased metallic needlecitations
- 2014Magnetic characterization of synthetic titanomagnetites: quantifying the recording fidelity of ideal synthetic analogscitations
- 2013Ferrimagnetic/ferroelastic domain interactions in magnetite below the Verwey transition. Part I: electron holography and Lorentz microscopycitations
- 2013Oxidation of Dodecanoate Intercalated Iron(II)–Iron(III) Layered Double Hydroxide to Form 2D Iron(III) (Hydr)oxide Layerscitations
- 2013Ferrimagnetic/ferroelastic domain interactions in magnetite below the Verwey transition: Part II. Micromagnetic and image simulationscitations
- 2011Formation process and superparamagnetic properties of (Mn,Ga)As nanocrystals in GaAs fabricated by annealing of (Ga,Mn)As layers with low Mn content
- 2011Formation process and superparamagnetic properties of (Mn,Ga)As nanocrystals in GaAs fabricated by annealing of (Ga,Mn)As layers with low Mn contentcitations
- 2011Spin reorientation in α-Fe2O3 nanoparticles induced by interparticle exchange interactions in alpha-Fe2O3/NiO nanocompositescitations
- 2011Voids and Mn-rich inclusions in a (Ga,Mn)As ferromagnetic semiconductor investigated by transmission electron microscopycitations
- 2010Direct observation of ferrimagnetic/ferroelastic domain interactions in magnetite below the Verwey transitioncitations
- 2010Interpretation of electron beam induced charging of oxide layers in a transistor studied using electron holographycitations
- 2010Nonadiabatic Spin Torque Investigated Using Thermally Activated Magnetic Domain Wall Dynamicscitations
- 2006Periodic inclusion of room-temperature-ferromagnetic metal phosphide nanoparticles in carbon nanotubescitations
Places of action
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article
Mechanisms of Se(IV) Co-precipitation with Ferrihydrite at Acidic and Alkaline Conditions and Its Behavior during Aging
Abstract
Understanding the form of Se(IV) co-precipitated with ferrihydrite and its subsequent behavior during phase transformation is critical to predicting its long-term fate in a range of natural and engineered settings. In this work, Se(IV)-ferrihydrite co-precipitates formed at different pH were characterized with chemical extraction, transmission electron microscopy (TEM), and X-ray absorption spectroscopy (XAS) to determine how Se(IV) is associated with ferrihydrite. Results show that despite efficient removal, the mode and stability of Se(IV) retention in the co-precipitates varied with pH. At pH 5, Se(IV) was removed dominantly as a ferric selenite-like phase intimately associated with ferrihydrite, while at pH 10, it was mostly present as a surface species on ferrihydrite. Similarly, the behavior of Se(IV) and the extent of its retention during phase transformation varied with pH. At pH 5, Se(IV) remained completely associated with the solid phase despite the phase change, whereas it was partially released back into solution at pH 10. Regardless of this difference in behavior, TEM and XAS results show that Se(IV) was retained within the crystalline post-aging products and possibly occluded in nanopore and defect structures. These results demonstrate a potential long-term immobilization pathway for Se(IV) even after phase transformation. This work presents one of the first direct insights on Se(IV) co-precipitation and its behavior in response to iron phase transformations.