Jump to main content
Jump to site search

Issue 61, 2015
Previous Article Next Article

Alginate fibers embedded with silver nanoparticles as efficient catalysts for reduction of 4-nitrophenol

Author affiliations

Abstract

Silver nanoparticles (AgNPs) have attracted much attention as promising catalysts in various electron transfer reactions due to their high catalytic efficiency. However, their poor stability results in the decrease of the catalytic efficiency and the poor cycling performance, which have hindered the practical application of AgNPs. In this work, alginate fibers embedded with AgNPs were prepared via in situ reduction of Ag+–alginate fibers in the presence of glucose. Field emission scanning electron microscopy (FE-SEM) and transmission electron microscopy (TEM) indicated that spherical AgNPs dispersed on the surface and the interior of the fibers. The alginate fibers could enable AgNPs to be highly stabilized and thus led to the excellent reusability as heterogeneous catalysts for the reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) in aqueous media. The catalytic results indicated that 4-NP could be reduced completely within 15 min. Moreover, the catalyst was easily recovered and reused for at least ten cycles in the reduction reactions, confirming its excellent stability. Most importantly, compared to the conventional powdery catalysts, the fiber catalyst could be handled much more conveniently for re-usage owing to its easily separation.

Graphical abstract: Alginate fibers embedded with silver nanoparticles as efficient catalysts for reduction of 4-nitrophenol

Back to tab navigation

Supplementary files

Publication details

The article was received on 29 Apr 2015, accepted on 28 May 2015 and first published on 28 May 2015


Article type: Paper
DOI: 10.1039/C5RA07821K
Author version
available:
Download author version (PDF)
Citation: RSC Adv., 2015,5, 49534-49540
  •   Request permissions

    Alginate fibers embedded with silver nanoparticles as efficient catalysts for reduction of 4-nitrophenol

    X. H. Zhao, Q. Li, X. M. Ma, Z. Xiong, F. Y. Quan and Y. Z. Xia, RSC Adv., 2015, 5, 49534
    DOI: 10.1039/C5RA07821K

Search articles by author

Spotlight

Advertisements