Issue 22, 2021

Magnetic polymer bowl for enhanced catalytic activity and recyclability

Abstract

This work introduces the fabrication of a magnetic polymer bowl for enhanced catalytic activity and recyclability, which involves the synthesis of silica-coated Fe3O4 magnetic clusters, seeded dispersion polymerization using the magnetic clusters, and transformation into a bowl-like structure via a phase separation route. The additional treatment with tannic acid (TA) on the bowls allows the in situ formation of silver nanoparticles (AgNPs) on their surfaces. The openness and larger surface area of the bowls, as compared with those of other structured particles, such as spheres and flowers, enable a considerably higher immobilization of AgNPs, thus leading to an excellent catalytic reduction for 4-nitrophenol (4-NP), methylene blue (MB), and rhodamine B. Furthermore, the strong magnetic response originating from the magnetic clusters inside the bowls endows a good magnetic recovery and an excellent reusability for the repeated reduction of the organic dyes without loss of catalytic activity.

Graphical abstract: Magnetic polymer bowl for enhanced catalytic activity and recyclability

Supplementary files

Article information

Article type
Paper
Submitted
19 Jan 2021
Accepted
07 Apr 2021
First published
13 Apr 2021
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2021,11, 13545-13555

Magnetic polymer bowl for enhanced catalytic activity and recyclability

S. G. Hong, E. Im, D. I. Kim, E. J. Jeong, J. Kim, G. D. Moon and D. C. Hyun, RSC Adv., 2021, 11, 13545 DOI: 10.1039/D1RA00453K

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