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Journal of Materials Science
Erschienen in: Journal of Materials Science 17/2019

28.05.2019 | Chemical routes to materials

Supported AuPd nanoparticles with high catalytic activity and excellent separability based on the magnetic polymer carriers

verfasst von: Chunyan Deng, Yinhao Li, Wenlu Sun, Fengli Liu, YingXue Zhang, Hao Qian

Erschienen in: Journal of Materials Science | Ausgabe 17/2019

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Abstract

An approach is developed to fabricate supported AuPd nanoparticles (NPs) with high catalytic activity and good separability depending on these amino-modified polymer microspheres (Fe3O4@PS-NH2). After the careful surface modification with amino groups, the selective adsorption of these magnetic polymer carriers to p-nitrophenol (4-NP) is much available for the improvement of the catalytic activity of immobilized AuPd nanoparticles. Furthermore, the catalytic activity of the bimetallic catalyst could be tunable via controlling the surface coverage of palladium on Au nanoparticles. The catalytic activity of supported AuPd NPs (S-AuPd250%) for 4-NP reduction increased 3.78 times compared with that of isolated AuPd NPs. The catalytic activity (k/mAu) even reached 479.78 min−1 mg−1 as S-AuPd150% and was selected as the catalyst. In addition, these supported AuPd nanoparticles are easily and rapidly isolated by magnetic separation. Due to its high stability, these supported AuPd NPs could be recycled for 30 runs without any loss of catalytic activity. Thus, the high catalytic activity and easy separability of this supported AuPd NPs are efficiently combined together, which is showing great potential in nanocatalysts.
Vorheriger Artikel Synthesis of g-C3N4/NiO p–n heterojunction materials with ball-flower morphology and enhanced photocatalytic performance for the removal of tetracycline and Cr6+
Nächster Artikel Transverse viscoelastic properties of pulp fibers investigated with an atomic force microscopy method

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Metadaten
Titel
Supported AuPd nanoparticles with high catalytic activity and excellent separability based on the magnetic polymer carriers
verfasst von
Chunyan Deng
Yinhao Li
Wenlu Sun
Fengli Liu
YingXue Zhang
Hao Qian
Publikationsdatum
28.05.2019
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 17/2019
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-019-03701-7

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