The chemical exploitation of nickel phytoextraction: An environmental, ecologic and economic opportunity for New Caledonia |
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Authors: | Losfeld Guillaume Escande Vincent Jaffré Tanguy L'huillier Laurent Grison Claude |
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Institution: | a Centre d’Ecologie Fonctionnelle et Evolutive, UMR 5175 CNRS, F34293 Montpellier, France b Agence de l’Environnement et de la Maîtrise de l’Energie, 20 avenue du Grésillé, BP 90406, 49004 Angers cedex 1, France c UMR AMAP - Laboratoire de Botanique et d’Ecologie Appliquées, Institut de Recherche pour le Développement, Noumea, New Caledonia d Diversités biologique et fonctionnelle des écosystèmes terrestres, Institut Agronomique néo-Calédonien, Païta, New Caledonia |
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Abstract: | Herein, we explore the outlines of an innovative method based on the chemical recovery of metal-rich biomass produced in phytoextraction technologies. Taking advantage of the adaptive capacity of some New Caledonian plants to hyperaccumulate Ni2+ cations in their aerial parts, this technique is based on the direct use of metals derived from plants as “Lewis acid” catalysts in organic chemistry. Metallic cations contained in New Caledonian nickel hyperaccumulators are recovered through a simple cost-effective process and serve the preparation of heterogeneous catalysts used in synthetic transformations allowing access to molecules with high added-value. The design of all processes is in line with the principles of green chemistry; it is adapted to the new economic constraints; it offers a new relevant outlet for metal-rich biomass; and it represents an alternative to non-renewable mineral materials. |
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Keywords: | Hyperaccumulator plants Biomass Phytoextraction Trace metals Heterogeneous catalysis Green chemistry |
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