Issue 90, 2016, Issue in Progress

Synthesis of magnetic microporous organic nanotube networks for adsorption application

Abstract

In this work, we report a novel synthesis of magnetic microporous organic nanotube networks (Fe3O4-MONNs) by an in situ hyper-cross-linking reaction between magnetic nanoparticles and core–shell bottlebrush copolymers. The resulting Fe3O4-MONNs magnetic hybrid materials display a hierarchically porous structure with nanotube morphology, large surface area (648 m2 g−1) and uniform mesochannels (∼4 nm). Due to abundant anionic carboxylate groups produced as end-groups after polylactide (PLA) core degradation in the bottlebrush copolymers, the Fe3O4-MONNs showed a selective adsorption behavior for the cationic dyes. Moreover, the Fe3O4-MONNs possess superparamagnetism and high saturation magnetization (19.8 emu g−1), which allows them to be easily separated by an external magnetic field and subsequently reused. Therefore, this work provides a promising method for the design and synthesis of magnetic microporous organic nanotube networks, which can be used for the practical separation of organic dyes, as well as having other potential applications in the fields of absorption, fast separation and heterogeneous catalysis.

Graphical abstract: Synthesis of magnetic microporous organic nanotube networks for adsorption application

Supplementary files

Article information

Article type
Paper
Submitted
25 Jul 2016
Accepted
06 Sep 2016
First published
07 Sep 2016

RSC Adv., 2016,6, 87745-87752

Synthesis of magnetic microporous organic nanotube networks for adsorption application

M. Zhou, H. Zhang, L. Xiong, Z. He, A. Zhong, T. Wang, Y. Xu and K. Huang, RSC Adv., 2016, 6, 87745 DOI: 10.1039/C6RA18836B

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