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Influence of UV grafting conditions and gel formation on the loading and stabilization of palladium nanoparticles in photografted polyethersulfone membrane for catalytic reactions

Emin, Clélia and Remigy, Jean-Christophe and Lahitte, Jean-Francois Influence of UV grafting conditions and gel formation on the loading and stabilization of palladium nanoparticles in photografted polyethersulfone membrane for catalytic reactions. (2014) Journal of Membrane Science, vol. 455. pp. 55-63. ISSN 0376-7388

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Official URL: http://dx.doi.org/10.1016/j.memsci.2013.12.049

Abstract

This paper reports innovative coupling for the development of catalytic membrane reactors. Photografting for the modification of membrane surfaces has been extensively studied and we used the results to optimize metal nanoparticle loading. Polyethersulfone hollow fibers were modified by poly(acrylic acid) grafting and the impact of a cross-linked network and a polymer gel grafted layer on metal loading was examined. Transmission electron microscopy images showed well dispersed metal nanoparticles close to the surface. The catalytic activity of the different hollow fibers was assessed by the reduction of p-nitrophenol into p-aminophenol and a conversion yield of close to 100% was found. We demonstrated the possibility of obtaining various reactors by varying the residence time through alteration of the grafted layer.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at : http://www.sciencedirect.com/science/article/pii/S0376738813010028
HAL Id:hal-01286151
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS (FRANCE)
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Deposited By: Jean-Francois LAHITTE
Deposited On:10 Mar 2016 12:27

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