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Reduction of 4 - chlorophenol by Mg and Mg – Ag bimetallic nanocatalysts / Jignasa N. Solanki in Industrial & engineering chemistry research, Vol. 50 N° 24 (Décembre 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 24 (Décembre 2011) Titre : Reduction of 4 - chlorophenol by Mg and Mg – Ag bimetallic nanocatalysts Type de document : texte imprimé Auteurs : Jignasa N. Solanki, Auteur ; Zagabathuni Venkata, Auteur ; Panchakshari Murthy, Auteur Année de publication : 2012 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Chlorophenol  Nanocatalysts Résumé : Mg nanocatalyst is successfully synthesized in the present study using wet chemical method via the chemical reduction of magnesium sulfate and a reducing agent (sodium borohydride). Size/size distribution characterization is performed by dynamic light scattering (DLS) and scanning electron microscopy (SEM). Subsequently, 4-chlorophenol compound reduction is systematically studied with Mg catalyst. An ultraviolet―visible light (UV―vis) spectrophotometer is used to study the absorption spectra of in situ reduction reaction with time. Gradual disappearance of the peak corresponding to chloro compounds reveals the degradation of chloro compounds with time. Furthermore, the appearance of a new peak reveals the formation of a respective product (phenol). Mg―Ag bimetallic nanocatalyst is also synthesized via an equivalent chemical method and analogous reduction is performed with the catalyst. The performance of the Mg―Ag bimetallic catalyst is compared with that of the Mg nanocatalyst. Superior dechlorination percentage is observed with the Mg―Ag bimetallic nanocatalyst. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie2022338 [article] Reduction of 4 - chlorophenol by Mg and Mg – Ag bimetallic nanocatalysts [texte imprimé] / Jignasa N. Solanki, Auteur ; Zagabathuni Venkata, Auteur ; Panchakshari Murthy, Auteur . - 2012. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 24 (Décembre 2011) Mots-clés : Chlorophenol  Nanocatalysts Résumé : Mg nanocatalyst is successfully synthesized in the present study using wet chemical method via the chemical reduction of magnesium sulfate and a reducing agent (sodium borohydride). Size/size distribution characterization is performed by dynamic light scattering (DLS) and scanning electron microscopy (SEM). Subsequently, 4-chlorophenol compound reduction is systematically studied with Mg catalyst. An ultraviolet―visible light (UV―vis) spectrophotometer is used to study the absorption spectra of in situ reduction reaction with time. Gradual disappearance of the peak corresponding to chloro compounds reveals the degradation of chloro compounds with time. Furthermore, the appearance of a new peak reveals the formation of a respective product (phenol). Mg―Ag bimetallic nanocatalyst is also synthesized via an equivalent chemical method and analogous reduction is performed with the catalyst. The performance of the Mg―Ag bimetallic catalyst is compared with that of the Mg nanocatalyst. Superior dechlorination percentage is observed with the Mg―Ag bimetallic nanocatalyst. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie2022338