Issue 65, 2015

Monodisperse magnetic ion imprinted polymeric microparticles prepared by RAFT polymerization based on γ-Fe2O3@meso-SiO2 nanospheres for selective solid-phase extraction of Cu(ii) in water samples

Abstract

Utilising a general protocol for making surface-imprinted core–shell microparticles via a RAFT-mediated approach, we developed a Cu(II) imprinted polymer with a novel magnetic nanosphere, γ-Fe2O3@meso-SiO2, as support. Attributed to the controlled/living polymerization mechanism of the RAFT polymerization process, the Cu(II) imprinted polymer prepared by RAFT polymerization (IIP-RAFT) presented a more well-defined morphology, more mono-dispersed properties, and much higher magnetic responsiveness, compared to the Cu(II) imprinted polymer prepared by traditional free-radical polymerization (IIP-TP). Moreover, in the static saturation binding experiments, a higher binding capacity of IIP-RAFT (210 mg g−1) than IIP-TP (145 mg g−1) was also found. Afterwards, a series of adsorption experiments were carried out to systematically evaluate the adsorption performance of the as-prepared IIP-RAFT. And the results showed that IIP-RAFT exhibited excellent selectivity, good reusability and desirable dynamic adsorption behavior, and could be an ideal candidate for SPE sorbents for the removal of Cu(II) in real wastewater.

Graphical abstract: Monodisperse magnetic ion imprinted polymeric microparticles prepared by RAFT polymerization based on γ-Fe2O3@meso-SiO2 nanospheres for selective solid-phase extraction of Cu(ii) in water samples

Supplementary files

Article information

Article type
Paper
Submitted
18 Apr 2015
Accepted
08 Jun 2015
First published
15 Jun 2015

RSC Adv., 2015,5, 52369-52381

Monodisperse magnetic ion imprinted polymeric microparticles prepared by RAFT polymerization based on γ-Fe2O3@meso-SiO2 nanospheres for selective solid-phase extraction of Cu(II) in water samples

Z. Liu, Z. Hu, Y. Liu, M. Meng, L. Ni, X. Meng, G. Zhong, F. Liu and Y. Gao, RSC Adv., 2015, 5, 52369 DOI: 10.1039/C5RA07022H

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements