Centre National De La Recherche Scientifique

Ecole Superieure De Physique Et De Chimie Industrielles De La Ville De Paris

Université De Versailles—saint-Quentin-En-Yvelines

Instituto Superior Tecnico

Ecole Normale Superieure De Paris

Moisés L Pinto

Christian Serre

The use of porous crystalline solids constituted of a metal-organic framework (MOF) for the capture of polar volatile organic compounds (VOCs). In particular, the MOF of interest are material having an average pores sizes of 0.4 to 0.6 nm and an hydrophobic core formed by a metal oxide and/or hydroxide network connected by linkers, the linkers being selected from the group including (i) C-Caromatic polycarboxylate linkers, such as benzyl or naphtyl di-, tri- or tetracarboxylate, and (ii) C-Cpolycarboxylate aliphatic linkers; the linkers bearing or not apolar fluorinated groups, e.g. &#x2014;(CF)n&#x2014;CFgroups, n being a integer from 0 to 5, preferably 0 ou 3, and/or apolar C-Cpreferably C-Calkyl groups, e.g. &#x2014;CHor &#x2014;CH&#x2014;CH, grafted directly to the linkers and pointing within the pores of the MOF. The MOF solids used in the present invention can be used for the purification of air, for example for the capture of polar VOCs like acetic acid and aldehydes from indoor air in cars, museums and archives, much more efficiently than common adsorbents, particularly in presence of above normal levels of humidity. They can in particular be used for the preservation of cultural heritage.

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Lisbon, Portugal

Moisés L Pinto