Carbon Supported Gold Nanoparticles for the Catalytic Reduction of 4-Nitrophenol

This work is a detailed study on how to optimize gold colloids preparation and their deposition to very different in nature carbon materials. The change of the continuous phase and its dielectric constant is used to assure the good dispersion of the hydrophilic/hydrophobic carbons and the successful...

Full description

Saved in:
Bibliographic Details
Published inFrontiers in chemistry Vol. 7; p. 548
Main Authors Rodríguez Molina, Hugo, Santos Muñoz, José Luis, Domínguez Leal, María Isabel, Reina, Tomas Ramírez, Ivanova, Svetlana, Centeno Gallego, Miguel Ángel, Odriozola, José Antonio
Format Journal Article
LanguageEnglish
Published Switzerland Frontiers Media S.A 16.08.2019
Subjects
4-nitrophenol
carbon
Chemistry
gold colloids
reduction
size effect
4-nitrophenol
gold colloids
reduction
size effect
carbon
Online AccessGet full text

Cover

More Information
Summary:This work is a detailed study on how to optimize gold colloids preparation and their deposition to very different in nature carbon materials. The change of the continuous phase and its dielectric constant is used to assure the good dispersion of the hydrophilic/hydrophobic carbons and the successful transfer of the preformed small size colloids to their surface. The sintering behavior of the particles during the calcination step is also studied and the optimal conditions to reduce to a minimum the particle size increase during the protecting agent removal phase are found. The as prepared catalysts have been tested in a relevant reaction in the field of environmental catalysis such as the reduction of 4-nitrophenol leading to promising results. Overall, this work proposes an important methodology to follow when a carbonaceous material are selected as catalyst supports for green chemistry reactions.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Reviewed by: Zhihua Xu, Jianghan University, China; Tomoo Mizugaki, Osaka University, Japan
Edited by: Hadi Nur, University of Technology Malaysia, Malaysia
This article was submitted to Catalysis and Photocatalysis, a section of the journal Frontiers in Chemistry
ISSN:2296-2646
2296-2646
DOI:10.3389/fchem.2019.00548