Synthesis of Cyclen‐Functionalized Ethenylene‐Based Periodic Mesoporous Organosilica Nanoparticles and Metal‐Ion Adsorption Studies
| Autor: | Gulaim A. Seisenbaeva, Clarence Charnay, Hao Li, Roser Pleixats, Laurence Raehm, Ani Vardanyan, Jean-Olivier Durand |
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| Přispěvatelé: | Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC), Swedish University of Agricultural Sciences (SLU), Universitat Autònoma de Barcelona (UAB) |
| Rok vydání: | 2020 |
| Předmět: |
[CHIM.ORGA]Chemical Sciences/Organic chemistry
Renewable Energy Sustainability and the Environment Chemistry Energy Engineering and Power Technology 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Biomaterials chemistry.chemical_compound Mesoporous organosilica Adsorption Cyclen Transition metal Desorption Polymer chemistry Materials Chemistry Click chemistry Nanorod Other Chemistry Topics 0210 nano-technology Selectivity |
| Zdroj: | ChemNanoMat ChemNanoMat, Wiley, 2020, 6 (11), pp.1625-1634. ⟨10.1002/cnma.202000383⟩ |
| ISSN: | 2199-692X |
| DOI: | 10.1002/cnma.202000383 |
| Popis: | International audience; The preparation of two cyclens both possessing two triethoxysilyl groups through click chemistry is described. These two cyclens were incorporated into bis(triethoxysilyl)ethenylene‐based periodic mesoporous organosilica nanoparticles (PMO NPs) at different proportions of bis(triethoxysilyl)ethenylene/cyclens (90/10, 75/25). The obtained nanorods were analyzed with different techniques and showed high specific surface areas at low proportion of cyclens. The nanorods containing free amino groups of cyclen were then used for Ni(II) and Co(II) removal from model solutions. The kinetics and isotherms of adsorption of Ni(II) and Co(II) were determined, and the materials showed high uptake of metals (up to 3.9 mmol ⋅ g−1). They demonstrated pronounced selectivity in separation of rare earth elements from late transition metals, e. g. Ni(II) and Co(II) by adsorption and even more so by controlled desorption.. |
| Databáze: | OpenAIRE |
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