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Materials 2016, 9(8), 690; doi:10.3390/ma9080690

Synthesis of Acylated Xylan-Based Magnetic Fe3O4 Hydrogels and Their Application for H2O2 Detection

State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
Author to whom correspondence should be addressed.
Academic Editor: Kiyonori Suzuki
Received: 12 July 2016 / Revised: 30 July 2016 / Accepted: 8 August 2016 / Published: 11 August 2016
(This article belongs to the Section Porous Materials)
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Acylated xylan-based magnetic Fe3O4 nanocomposite hydrogels (ACX-MNP-gels) were prepared by fabricating Fe3O4 nanoctahedra in situ within a hydrogel matrix which was synthesized by the copolymerization of acylated xylan (ACX) with acrylamide and N-isopropylacrylamide under ultraviolet irradiation. The size of the Fe3O4 fabricated within the hydrogel matrix could be adjusted through controlling the crosslinking concentrations (C). The magnetic hydrogels showed desirable magnetic and mechanical properties, which were confirmed by XRD, Raman spectroscopy, physical property measurement system, SEM, TGA, and compression test. Moreover, the catalytic performance of the magnetic hydrogels was explored. The magnetic hydrogels (C = 7.5 wt %) presented excellent catalytic activity and provided a sensitive response to H2O2 detection even at a concentration level of 5 × 10−6 mol·L−1. This approach to preparing magnetic hydrogels loaded with Fe3O4 nanoparticles endows xylan-based hydrogels with new promising applications in biotechnology and environmental chemistry. View Full-Text
Keywords: xylan; acylated xylan; magnetic hydrogels; Fe3O4 nanoparticles; H2O2 detection xylan; acylated xylan; magnetic hydrogels; Fe3O4 nanoparticles; H2O2 detection

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Dai, Q.-Q.; Ren, J.-L.; Peng, F.; Chen, X.-F.; Gao, C.-D.; Sun, R.-C. Synthesis of Acylated Xylan-Based Magnetic Fe3O4 Hydrogels and Their Application for H2O2 Detection. Materials 2016, 9, 690.

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