Green synthesis and in-situ immobilization of gold nanoparticles and their application for the reduction of p-nitrophenol in continuous-flow mode

A green and facile method has been developed for the preparation of in-situ immobilized gold nanoparticles (AuNPs) using agarose as a reducing and stabilizing agent. The size of the synthesized AuNPs ranges between 10 and 100 nm, and their average size can be controlled by the concentrations of the...

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Bibliographic Details
Main Authors: Szűcs Rózsa
Balogh Weiser Diána
Sánta-Bell Evelin
Tóth-Szeles Eszter
Varga Tamás
Kónya Zoltán
Poppe László
Lagzi István László
Format: Article
Published: 2019
Series:RSC ADVANCES 9 No. 16
doi:10.1039/c8ra10373a

mtmt:30532435
Online Access:http://publicatio.bibl.u-szeged.hu/17553
Description
Summary:A green and facile method has been developed for the preparation of in-situ immobilized gold nanoparticles (AuNPs) using agarose as a reducing and stabilizing agent. The size of the synthesized AuNPs ranges between 10 and 100 nm, and their average size can be controlled by the concentrations of the agarose and gold salt. The agarose matrix as a mild and green reaction medium can provide a good dispersion environment for the forming AuNPs, and the hydrogel can be well homogenized with polyacrylic macroporous microbeads as well, which can adsorb and stabilize the particles led the simultaneous synthesis and immobilization of AuNPs avoiding harmful inorganic compounds or organic solvents. The supported gold nanocatalyst was successfully applied as a catalyst in packed bed reactors for efficient NaBH4 mediated reduction of p-nitrophenol in continuous-flow mode.
Physical Description:9193-9197
ISSN:2046-2069