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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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Yazdani Mccord, Maryam Roza
Aalto University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2024Polypyrrole-modified flax fiber sponge impregnated with fatty acids as bio-based form-stable phase change materials for enhanced thermal energy storage and conversioncitations
- 2023Flexible and conductive nanofiber textiles for leakage-free electro-thermal energy conversion and storagecitations
- 2021Exceptional cold-crystallization kinetics of erythritol-polyelectrolyte enables long-term thermal energy storagecitations
- 2020Cold-crystallizing erythritol-polyelectrolytecitations
- 2018Chitosan–Zinc(II) Complexes as a Bio-Sorbent for the Adsorptive Abatement of Phosphate: Mechanism of Complexation and Assessment of Adsorption Performancecitations
- 2016Adsorptive removal of arsenic(V) from aqueous phase by feldsparscitations
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article
Adsorptive removal of arsenic(V) from aqueous phase by feldspars
Abstract
<p>The present study investigated the adsorption of arsenic(V) (As(V)) on feldspar mineral samples collected from Finland and Italy. A ground sample with quartz composition was also utilized to study the effect of aluminum content of the minerals on As(V) adsorption. The mineral samples were characterized by X-ray diffraction (XRD), scanning electron microscopy/energy dispersive spectroscopy (SEM/EDS), and Fourier transform infrared spectroscopy (FTIR) analyses. Batch experiments were performed to examine the influence of various operational parameters such as contact time, initial As(V) concentration, temperature, solution pH and the presence of competing anions on the adsorption of As(V) by feldspars. The point of zero charge (pH<sub>pzc</sub>) for the feldspars was determined, and the optimal pH range for adsorption was below this point. The feldspar sample with a higher aluminum content showed a higher adsorption capacity. Electrostatic forces between the terminal aluminol groups of the samples and predominant form of arsenate in acidic medium were found to be the main cause of the adsorption reaction. The As(V) adsorption onto feldspars was observed to follow pseudo-second-order kinetics and the thermodynamic data confirmed the endothermic and favorable nature of the adsorption.</p>