| 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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Inglezakis, Vassilis J.
University of Strathclyde
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (27/27 displayed)
- 2023Structural, morphological and physiochemical analysis of SiC8H20O4/C2H5O/C7H16 modified mesoporous silica aerogels
- 2023Synthesis of a novel perovskite-carbon aerogel hybrid adsorbent with multiple metal-Lewis active sites for the removal of dyes from watercitations
- 2023Efficient mercury removal from water by using modified natural zeolites and comparison to commercial adsorbentscitations
- 2022Experimental and modeling studies of Sr2+ and Cs+ sorption on cryogels and comparison to commercial adsorbentscitations
- 2021Silica aerogels; a review of synthesis, applications and fabrication of hybrid compositescitations
- 2020Experimental study of zeolitic diffusion by use of a concentration-dependent surface diffusion modelcitations
- 2020Distributed 2D temperature sensing during nanoparticles assisted laser ablation by means of high-scattering fiber sensorscitations
- 2020Catalytic oxidation of methylene blue by use of natural zeolite-based silver and magnetite nanocompositescitations
- 2020Synthesis of biosourced silica-Ag nanocomposites and amalgamation reaction with mercury in aqueous solutionscitations
- 2020Mercury reduction and chemisorption on the surface of synthetic zeolite silver nanocompositescitations
- 2020A fractal-based correlation for time-dependent surface diffusivity in porous adsorbentscitations
- 2020Surface interactions and mechanisms study on the removal of iodide from water by use of natural Zeolite-based silver nanocompositescitations
- 2020Magnetic Fe3O4-Ag0 nanocomposites for effective mercury removal from watercitations
- 2019Variable diffusivity homogeneous surface diffusion model and analysis of merits and fallacies of simplified adsorption kinetics equationscitations
- 2019Application of nanoparticles and nanomaterials in thermal ablation therapy of cancercitations
- 2019Synthetic sodalite doped with silver nanoparticlescitations
- 2019Removal of iodide from water using silver nanoparticles-impregnated synthetic zeolitescitations
- 2019Manufacturing of ultra-fine particle coal fly ash–A380 aluminum matrix composites with improved mechanical properties by improved ring milling and oscillating microgrid mixingcitations
- 2019In situ production of high purity noble metal nanoparticles on fumed silica and catalytic activity towards 2-nitrophenol reductioncitations
- 2018A comparative study on phyllosilicate and tectosilicate mineral structural propertiescitations
- 20183 -nanoparticles as a powerful tool for membrane pore size determination and mercury removal
- 2018Synthetic coal fly ash-derived zeolites doped with silver nanoparticles for mercury (II) removal from watercitations
- 2018Silver nanoparticles impregnated zeolites derived from coal fly ashcitations
- 2012Mathematical modeling of sorption process of Cu2+ ions on analcime and clinoptilolitecitations
- 2012Automotive industry challenges in meeting EU 2015 environmental standardcitations
- 2009Automotive shredder residue (ASR)citations
- 2001Applicability of simplified models for the estimation of ion exchange diffusion coefficients in zeolitescitations
Places of action
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article
Experimental study of zeolitic diffusion by use of a concentration-dependent surface diffusion model
Abstract
<p>Surface diffusivity in adsorption and ion exchange processes is probably the most important property studied expensively in the literature but some aspects, especially its dependence on solid phase concentration, is still an open subject to discussion. In this study a new concentration-dependent surface diffusion model, equipped with a flexible double selectivity equilibrium relationship is applied on the removal of Pb<sup>2+</sup>, Cr<sup>3+</sup>, Fe<sup>3+</sup> and Cu<sup>2+</sup> from aqueous solutions using a natural zeolite. The model incorporates the Chen-Yang surface diffusivity correlation able to deal with positive and negative dependence with surface coverage. The double selectivity equilibrium relationship successfully represents the experimental equilibrium data, which follow Langmurian isotherm type for Pb<sup>2+</sup>, sigmoidal for Cr<sup>3+</sup> and Fe<sup>3+</sup> and linear for Cu<sup>2+</sup>. The concentration-dependent surface diffusion model was compared with the constant diffusivity surface diffusion model and found to be moderately more accurate but considerably more useful as it provides more insights into the diffusion mechanism. The application of the model resulted in an average deviation of 8.56 ± 6.74% from the experimental data and an average solid phase diffusion coefficients between 10<sup>−9</sup> and 10<sup>−10</sup> cm<sup>2</sup>/s. The results showed that the diffusion of metal ions in the zeolite structure is unhindered following the surface diffusion mass transfer mechanism.</p>