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Journal of Nanoparticle Research

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01.04.2013 | Research Paper

Reduction of hexavalent chromium with colloidal and supported palladium nanocatalysts

verfasst von: Weixia Tu, Kunjing Li, Xiaohui Shu, William W. Yu

Erschienen in: Journal of Nanoparticle Research | Ausgabe 4/2013

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Abstract

The Cr(VI) pollutants are known to cause serious harm to the environment and human health. Chemical reduction is one of the efficient methods to eliminate the Cr(VI) pollutants. We synthesized polyvinylpyrrolidone-stabilized palladium (PVP-Pd) colloidal nanoparticles to catalytically reduce Cr(VI). The PVP-Pd colloidal nanocatalysts were active on the complete reduction of Cr(VI) to Cr(III) with a rate of 22.2 mol_Cr/(mol_Pd min) or a turn-over frequency (TOF) of 1,329 h⁻¹ at pH 4.0 and 45 °C. Magnetic Fe₃O₄ support was used for recycling the palladium nanocatalysts. The as-prepared Pd–Fe₃O₄ catalyst was easy to be separated from the reaction system by simply applying an external magnet and it exhibited efficient and stable reduction performance even after eight recycles.

Vorheriger Artikel Development and analytical characterization of vitamin(s)-loaded chitosan nanoparticles for potential food packaging applications

Nächster Artikel Optical properties of palladium nanoparticles under exposure of hydrogen and inert gas prepared by dewetting synthesis of thin-sputtered layers

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Titel: Reduction of hexavalent chromium with colloidal and supported palladium nanocatalysts
verfasst von: Weixia Tu
Kunjing Li
Xiaohui Shu
William W. Yu
Publikationsdatum: 01.04.2013
Verlag: Springer Netherlands
Erschienen in: Journal of Nanoparticle Research / Ausgabe 4/2013
Print ISSN: 1388-0764
Elektronische ISSN: 1572-896X
DOI: https://doi.org/10.1007/s11051-013-1593-6

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