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Carbothermal synthesis of aerosol - based adsorptive - reactive iron – carbon particles for the remediation of chlorinated hydrocarbons / Jingjing Zhan in Industrial & engineering chemistry research, Vol. 50 N° 23 (Décembre 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 23 (Décembre 2011) . - pp. 13021-13029 Titre : Carbothermal synthesis of aerosol - based adsorptive - reactive iron – carbon particles for the remediation of chlorinated hydrocarbons Type de document : texte imprimé Auteurs : Jingjing Zhan, Auteur ; Bhanukiran Sunkara, Auteur ; Jingjian Tang, Auteur Année de publication : 2012 Article en page(s) : pp. 13021-13029 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Decontamination  Aerosols Résumé : Spherical iron—carbon nanocomposites were synthesized through a facile aerosol-based process and a subsequent carbothermal reduction. The distribution and immobilization of iron particles throughout the carbon microspheres prevents nanoiron aggregation, allowing the maintenance of particle reactivity. The carbon microspheres allow adsorption of TCE, thus removing dissolved TCE rapidly and facilitating reaction by increasing the local concentration ofTCE in the vicinity of iron particles. The strongly adsorptive property of the composites may prevent release of toxic chlorinated intermediate products. The nanoscale composite particle size is in the optimal range for effective transport through groundwater saturated sediments. It is also shown that carbothermal treatment of the composite material leads to highly porous carbon materials containing zerovalent iron species, a necessary reactive component in the reaction pathway. The mesoporous structure generated allows access to internal reactive sites. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25267459 [article] Carbothermal synthesis of aerosol - based adsorptive - reactive iron – carbon particles for the remediation of chlorinated hydrocarbons [texte imprimé] / Jingjing Zhan, Auteur ; Bhanukiran Sunkara, Auteur ; Jingjian Tang, Auteur . - 2012 . - pp. 13021-13029. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 23 (Décembre 2011) . - pp. 13021-13029 Mots-clés : Decontamination  Aerosols Résumé : Spherical iron—carbon nanocomposites were synthesized through a facile aerosol-based process and a subsequent carbothermal reduction. The distribution and immobilization of iron particles throughout the carbon microspheres prevents nanoiron aggregation, allowing the maintenance of particle reactivity. The carbon microspheres allow adsorption of TCE, thus removing dissolved TCE rapidly and facilitating reaction by increasing the local concentration ofTCE in the vicinity of iron particles. The strongly adsorptive property of the composites may prevent release of toxic chlorinated intermediate products. The nanoscale composite particle size is in the optimal range for effective transport through groundwater saturated sediments. It is also shown that carbothermal treatment of the composite material leads to highly porous carbon materials containing zerovalent iron species, a necessary reactive component in the reaction pathway. The mesoporous structure generated allows access to internal reactive sites. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25267459