Observation of activated carbon fibres with SEM and AFM correlation with adsorption data in aqueous solution
| Autor: | B. Rousseau, P. Le Cloirec, C. Brasquet, H. Estrade-Szwarckopf |
|---|---|
| Přispěvatelé: | Mines Nantes (Mines Nantes), Centre de Recherche sur la Matière Divisée (CRMD), Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO) |
| Rok vydání: | 2000 |
| Předmět: |
Scanning electron microscope
D. Porosity Mineralogy 02 engineering and technology 010402 general chemistry C. Electron microscopy 01 natural sciences Adsorption Microscopy Carbon fibers medicine [CHIM]Chemical Sciences General Materials Science Fiber Porosity Aqueous solution Carbonization Chemistry General Chemistry 021001 nanoscience & nanotechnology 0104 chemical sciences Chemical engineering A. Activated carbon 0210 nano-technology Activated carbon medicine.drug |
| Zdroj: | Carbon Carbon, 2000, 38 (3), pp.407-422. ⟨10.1016/S0008-6223(99)00120-7⟩ |
| ISSN: | 0008-6223 |
| Popis: | International audience; Activated carbon fibres are new adsorbents, which seem very promising for air or water treatment. In this work, rayon fibres which have been carbonized and activated in the form of woven cloths, are studied by means of two kinds of microscopy: Scanning Electron Microscopy (SEM) and Atomic Force Microscopy (AFM). The resulting observations show the effect of carbonization and activation on the fibre surface structure. The influence of activation conditions (oxidation gas, temperature and duration) is studied and confirmed by N2 adsorption. The specific porosity properties of fibres are then used to adsorb different organic compounds in aqueous solutions, with low molecular weights (aromatics like phenol) and high molecular weights (humic substances). A good correlation is found between these adsorption data and the microscopic observations. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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