| Titre : |
Effect of the removal method of hide powder on the porous properties of nanoporous silice |
| Type de document : |
texte imprimé |
| Auteurs : |
Satoru Dohshi, Auteur |
| Année de publication : |
2012 |
| Article en page(s) : |
p. 68-70 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Extraction (chimie)
Granulométrie
Particules (matière) -- Synthèse
Poudre de peaux
Silice poreuse
Thermogravimétrie
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Nanoporous silica has been successfully synthesized using hide powder as a template. We investigated the optimum conditions for the extraction of hide powder with acidic solutions and the effect of the removal method of hide powder from hide powder/silica composite on the porous properties of nanoporous silica. It was found from thermogravimetric (TG) measurements that hide powder could be removed from hide powder/silica composite by extraction with 10vol% HCI aqueous solution at 333K for 24 hours. It was also found from N2 adsorption-desorption isotherm measurements that nanoporous silica synthesized by acid extraction possessed a large specific surface area over 1000m2 g-1. Moreover, micropore volume and micropore size for nanoporous silice synthesized by acid extraction was larger than those for nanoporous silica synthesized by calcination at high temperature. We demonstrated that the acid extraction with 10vol% HCI aqueous solutions was reasonable for the removal of hide powder from hide powder/silica composite. |
| Note de contenu : |
- Optimum conditions for extraction with HCI aqueous solution
- Effect of the removal method of hide powder on the porous properties of nanoporous silica |
| En ligne : |
https://drive.google.com/file/d/1Bhcxz1YDlSEUXEeLpUCcECkAexOWYbh1/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=14571 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 96, N° 2 (03-04/2012) . - p. 68-70
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Effect of the removal method of hide powder on the porous properties of nanoporous silice in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 96, N° 2 (03-04/2012)
