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Catalysts 2015, 5(3), 1479-1497;

Removal of Toluene over NaX Zeolite Exchanged with Cu2+

Unité de Catalyse et de Chimie du Solide UMR 8181 CNRS, Université Lille1 Sciences et Technologies, 59650 Villeneuve d'Ascq, France
Laboratory of Physical Chemistry of Materials/PR2N, Faculty of Sciences, Lebanese University, Fanar, Lebanon
Institut de Chimie des Milieux et Matériaux de Poitiers UMR 7285 CNRS, Université Poitiers, 86073 Poitiers, France
Laboratoire Interdisciplinaire Carnot de Bourgogne UMR 6303 CNRS, Université Bourgogne, 21078 Dijon, France
Author to whom correspondence should be addressed.
Academic Editor: Keith Hohn
Received: 26 June 2015 / Revised: 20 July 2015 / Accepted: 24 July 2015 / Published: 2 September 2015
(This article belongs to the Special Issue Catalytic Removal of Volatile Organic Compounds)
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Toluene is a major air pollutant emitted from painting and metal coating processes and might have some health effects. Adsorption and catalytic complete oxidation are promising ways to retain or convert toluene into harmless products. The present work aims to develop a bifunctional material which can be used as an adsorbent and catalyst for low-temperature toluene removal. Copper zeolites were obtained by exchanging the sodium in the parent NaX zeolite with copper from aqueous solutions of Cu(NO3)2∙2.5H2O. Several characterization techniques, H2-TPR, XPS, XRD and N2 physisorption, were used in order to evaluate the redox, surface, structural and textural properties of the materials, respectively. The various materials were tested in adsorption and catalytic processes. The sample with low copper content (1 wt. %) exhibited promising features in terms of toluene adsorption capacity and total oxidation. The results can be correlated to the presence of micropores and well-dispersed CuO species. View Full-Text
Keywords: VOC; toluene; catalytic oxidation; adsorption; zeolite; copper VOC; toluene; catalytic oxidation; adsorption; zeolite; copper

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Romero, D.; Chlala, D.; Labaki, M.; Royer, S.; Bellat, J.-P.; Bezverkhyy, I.; Giraudon, J.-M.; Lamonier, J.-F. Removal of Toluene over NaX Zeolite Exchanged with Cu2+. Catalysts 2015, 5, 1479-1497.

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