| 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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Letofsky-Papst, Ilse
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2024Microstructure and Mechanical Properties of Ti-6Al-4V In Situ Alloyed with 3 wt% Cr by Laser Powder Bed Fusion
- 2024Advancements in metal additive manufacturingcitations
- 2023Oxidation behavior of a cathodic arc evaporated Cr$_{0.69}$Ta$_{0.20}$B$_{0.11}$N coating
- 20232D and 3D STEM Imaging and Spectroscopy: Applications and Perspectives in View of Novel STEM Infrastructure
- 2023Microstructure of a modulated Ti-6Al-4V – Cu alloy fabricated via in situ alloying in laser powder bed fusioncitations
- 2023Oxidation behavior of a cathodic arc evaporated Cr<sub>0.69</sub>Ta<sub>0.20</sub>B<sub>0.11</sub>N coating
- 2022Unique microstructure evolution of a novel Ti-modified Al-Cu alloy processed using laser powder bed fusioncitations
- 2022Crack-free in situ heat-treated high-alloy tool steel processed via laser powder bed fusion: microstructure and mechanical propertiescitations
- 2021Laser powder bed fusion of nano-CaB6 decorated 2024 aluminum alloycitations
- 2021A novel nZVI–bentonite nanocomposite to remove trichloroethene (TCE) from solutioncitations
- 2020The effect of oxygen and carbon on molybdenum in Laser Powder Bed Fusion
- 2020Microstructural evolution of metallurgical coke: Evidence from Raman spectroscopycitations
- 2019Novel highly active carbon supported ternary PdNiBi nanoparticles as anode catalyst for the alkaline direct ethanol fuel cellcitations
- 2016Effect of Alkaline Elements on Coke Structure under Blast Furnace Process Conditions
- 2014Order vs. disorder — a huge increase in ionic conductivity of nanocrystalline LiAlO2 embedded in an amorphous-like matrix of lithium aluminatecitations
- 2012Application of elemental microanalysis to elucidate the role of spherites in the digestive gland of the helicid snail Chilostoma lefeburiana
- 2008δ-phase characterization of superalloy Allvac 718 Plus™
Places of action
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article
A novel nZVI–bentonite nanocomposite to remove trichloroethene (TCE) from solution
Abstract
<p>Nanoscale zero-valent iron (nZVI) based (nano)composites supported by clay mineral substrates are a promising technology for the in-situ remediation of groundwater and (sub)soils contaminated with chlorinated hydrocarbons, such as trichloroethene (TCE). However, the physicochemical processes and interaction mechanisms between nZVI particles, clay minerals and TCE are poorly understood, yet. We immobilized nZVI particles on a commercial bentonite substrate to prepare a novel nZVI-B nanocomposite and tested its performance for TCE removal from solution against pure nZVI in batch reactors. The nZVI-B exhibited a higher reactivity (2.2·10<sup>−3</sup> L h<sup>−1</sup>·m<sup>−2</sup>) and efficiency (94%) for TCE removal than nZVI (2.2·10<sup>−4</sup> L h<sup>−1</sup>·m<sup>−2</sup>; 45%). Sorption of TCE onto the clay surfaces and reductive de-chlorination in “micro-reactors” developing within the nZVI-B controlled the kinetics and the magnitude of TCE loss from solution. Contrary to pure nZVI, no signs of nZVI particle agglomeration or inactivation due to oxide shell formation were found in nZVI-B. We attribute this to the uptake of dissolved Fe species that are liberated via progressing nZVI particle corrosion by the bentonite substrate to form Fe-smectite (nontronite domains), which prevented from a deterioration of the properties and reactivity of the nZVI-B. The use of nZVI-B in permeable reactive barriers at contaminated field sites could be feasible, where a system-inherent reduction of the soil-bearing capacity has to be minimized.</p>