Graphene oxide-mesoporous SiO2 hybrid composite for fast and efficient removal of organic cationic contaminants

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CZEPA, Włodzimierz, PAKULSKI, Dawid, WITOMSKA, Samanta, PATRONIAK, Violetta, CIESIELSKI, Artur et SAMORI, Paolo, sans date. Graphene oxide-mesoporous SiO2 hybrid composite for fast and efficient removal of organic cationic contaminants. Carbon. sans date. Vol. 158, pp. 193-201. DOI 10.1016/j.carbon.2019.11.091. 1. .
Accès libre Peer reviewed
Version acceptée pour publication (post-print auteur)
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Auteurs Włodzimierz Czepa
Dawid Pakulski
Samanta Witomska
Violetta Patroniak
Artur Ciesielski
Paolo Samori
Unité de recherche du site Institut de Science et d'Ingénierie Supramoléculaires - ISIS - UMR7006
Langue

en
Volume

158
Page de début

193
Page de fin

201
Date de première publication

2019-11-29
ISSN

0008-6223
Titre de la source (revue, livre…)

Carbon
Résumé

In this study, we have developed a novel mesoporous SiO2 - graphene oxide hybrid material (SiO2NH2-GO) as highly efficient adsorbent for removal of cationic organic dyes from water. The fabrication of such a three-dimensional (3D) SiO2NH2-GO Show moreIn this study, we have developed a novel mesoporous SiO2 - graphene oxide hybrid material (SiO2NH2-GO) as highly efficient adsorbent for removal of cationic organic dyes from water. The fabrication of such a three-dimensional (3D) SiO2NH2-GO composite has been achieved via the condensation reaction between the amine units exposed on 3-aminopropyl-functionalized silica nanoparticles and the epoxy groups on surface of GO. As a proof-of-concept, SiO2NH2-GO was used for the removal of archetypical dyes from water and revealed outstanding maximum adsorption capacity towards methylene blue (MB), rhodamine B (RhB) and methyl violet (MV) at pH 10 reaching 300, 358 and 178 mg g−1 for MB, RhB and MV, respectively, thus outperforming the neat components of composite, i.e. GO and SiO2. Moreover, the adsorption process revealed that ∼99.7% of MB, RhB and MV have been removed in only 3 min thereby highlighting the superior nature of SiO2NH2-GO composite with respect to most of graphene oxide-based adsorbents of organic dyes. Finally, the composite was used in solid phase extraction (SPE) as column packing material, for continuous water purification, thus highlighting the great potential of SiO2NH2-GO for the large-scale removal of cationic dyes from aqueous solutions. Show less
DOI 10.1016/j.carbon.2019.11.091
Titre abrégé de la source

Carbon
Type de publication

ACL
Domaine

Chimie/Matériaux
Unité de recherche extérieure au site

Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61614, Poznań, Poland
Center for Advanced Technologies Adam Mickiewicz University, Uniwersytetu Poznańskiego 10, 61614, Poznań, Poland
Fonction

aut
Identifiant idREF 151349363
109288335
Audience

International
Envoyer vers HAL

5
URL https://univoak.eu/islandora/object/islandora:85769