Stable surface functionalization of carbonized mesoporous silicon
| Autor: | Séverinne Rigolet, Jacques Lalevée, Fabrice Morlet-Savary, Bénédicte Lebeau, Claire Marichal, Jouko Vepsäläinen, Vesa-Pekka Lehto, Aino Alanne, Joakim Riikonen, Fabien Aussenac, Magali Bonne, Tuomo Nissinen, Philippe Fioux, Rinez Thapa |
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| Přispěvatelé: | Institut de Science des Matériaux de Mulhouse (IS2M), Centre National de la Recherche Scientifique (CNRS)-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA), Bruker Biospin SA, Wissembourg |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Aqueous solution Silicon chemistry.chemical_element [CHIM.MATE]Chemical Sciences/Material chemistry 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Nanomaterials Inorganic Chemistry Adsorption chemistry Chemical engineering Basic solution Desorption [CHIM]Chemical Sciences Surface modification 0210 nano-technology Mesoporous material ComputingMilieux_MISCELLANEOUS |
| Zdroj: | Inorganic Chemistry Frontiers Inorganic Chemistry Frontiers, Royal Society of Chemistry, 2019, ⟨10.1039/c9qi01140d⟩ |
| ISSN: | 2052-1553 |
| Popis: | Mesoporous silicon (PSi) is an emerging nanomaterial studied in e.g. biomedical, sensor and energy applications. In many applications, a major obstacle in its commercial use is the instability of its surfaces, especially when functionalized with organic molecules. In the present work, we introduce a surface functionalization method for PSi, in which carbonized surface of silicon is functionalized with terminal alkenes. A good surface coverage of 0.3 molecules per nm2 was achieved and the material showed excellent aqueous stability at low and neutral pH. It also withstood a highly basic solution for several days. The developed method was used to graft bisphosphonates on the surface and the material was used for metal adsorption. Because of its excellent stability, the adsorbent material lasted up to 50 adsorption/desorption cycles without a significant deterioration of its performance. |
| Databáze: | OpenAIRE |
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