| Titre : | AM-TEPA impregnated disordered mesoporous silica as CO2 capture adsorbent for balanced adsorption–desorption properties (2013) |
| Auteurs : | Xiaoyun Zhang, Auteur ; Xiuxin Zheng, Auteur ; Sisi Zhang, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 51 N° 46, Novembre 2012) |
| Article en page(s) : | pp. 15163–15169 |
| Note générale : | Industrial chemistry |
| Langues : | Anglais |
| Tags : | Mesoporous silica |
| Résumé : | A disordered mesoporous silica was found to be a promising solid support for CO2 capture. It was prepared with a process similar to that for MCM-41. X-ray diffraction characterization (XRD) and transmission electron microscopy (TEM) confirmed its disordered structure. N2 adsorption–desorption tests indicated that its average pore size is significantly larger than that of MCM-41. On this support was deposited acrylamide (AM)-modified tetraethylenepentamine (TEPA), resulting in an adsorbent suitable for CO2 capture. This material exhibited well balanced adsorption and desorption properties. Substantially higher CO2 adsorption capacity (159.1 mg/g-adsorbent) was obtained with pure CO2 at 25 °C, and satisfactory stability during 12 adsorption–desorption turnovers was achieved. |
| ISSN : | 0888-5885 |
| En ligne : | http://pubs.acs.org/doi/abs/10.1021/ie300180u |
