| 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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Schroeder, Grzegorz
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2021The Electrospray (ESI) and Flowing Atmosphere-Pressure Afterglow (FAPA) Mass Spectrometry Studies of Nitrophenols (Plant Growth Stimulants) Removed Using Strong Base-Functionalized Materialscitations
- 2020Efficient Removal of Ni(II) and Co(II) Ions from Aqueous Solutions Using Silica-based Hybrid Materials Functionalized with PAMAM Dendrimerscitations
- 2019Silica-dendrimer nanohybrid materials as adsorbents for heavy metal ions in aqueous solutions
- 2019Adsorption studies of Cu(II) ions on dendrimer-grafted silica-based materialscitations
- 2018Preparation of multifunctional cascade iron oxide nanoparticles for drug deliverycitations
- 2016Photoacoustic infrared spectroscopic studies of silica gels with organically functionalized surfacecitations
- 2015Removal of heavy metal ions with the use of chelating polymers obtained by grafting pyridine-pyrazole ligands onto polymethylhydrosiloxanecitations
- 2010Copper removal by carbon nanomaterials bearing cyclam-functionalized silicacitations
- 2010Preparation and characterization of magnetic carbon nanomaterials bearing APTS-silica on their surfacecitations
- 2010Adsorption of metal ions on magnetic carbon nanomaterials bearing chitosan-functionalized silicacitations
Places of action
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article
Adsorption studies of Cu(II) ions on dendrimer-grafted silica-based materials
Abstract
Globally observed increase in water contamination has prompted the search for novel, efficient adsorbents, in particular those capable of adsorbing heavy metals. A group of novel hybrid materials composed of silica-gel functionalized with dendritic structures was synthesized. Firstly, four poly(amidoamine) dendrimers (PAMAM) were synthesized in a two-step synthesis: (1) Michael addition between amine core – tris(2-aminoethyl)amine - and methyl acrylate; (2) amidation with the use of four structurally diverse amines: ethylenediamine, triethylenetetramine, tris(2-aminoethyl)amine and 4,7,10-trioxa-1,13-tridecanediamine. Obtained dendrimers were characterized with NMR and MS analysis, and subsequently used as grafting agents dedicated to isocyanate-functionalized silica particles. The obtained hybrid materials (SiO2-dendrimers) were subjected to IR spectroscopic study and tested for their adsorptive properties towards Cu2+ ions. Adsorption studies included obtaining of adsorption isotherms and kinetic and thermodynamic studies, using spectrophotometric measurements. Adsorption capacity values of the materials fluctuated between 19.8 and 104.6 mg g−1. Also, other coefficients, such as adsorption rate constants, standard enthalpies or standard Gibbs free energies, describing chelating ability of adsorbents were considerably various for different materials. According to the results, incorporation of structurally diverse amines as amino-terminal components of dendritic structure had a significant influence on adsorptive properties of silica-dendrimer hybrid materials