| Title: | Metal-Organic Frameworks for Cultural Heritage Preservation: The Case of Acetic Acid Removal |
| Author(s): | Dedecker K; Pillai RS; Nouar F; Pires J; Steunou N; Dumas E; Maurin G; Serre C; Pinto ML; |
| Address: | "Institut Lavoisier de Versailles, UMR CNRS 8180 , Universite de Versailles St-Quentin-en-Yvelines, Universite Paris-Saclay , 78035 Versailles Cedex, France. Centre de Recherche sur la Conservation, USR3224: CNRS-MNHN-MCC , Sorbonne Universites , 36 rue Geoffroy-Saint-Hilaire , 75005 Paris Cedex, France. Institut Charles Gerhardt Montpellier, UMR-5253, ENSCM, CNRS , Universite de Montpellier , 34095 Montpellier Cedex 05, France. Institut des Materiaux Poreux de Paris (IMAP), FRE CNRS 2000, Ecole Normale Superieure de Paris, Ecole Superieure de Physique et de Chimie Industrielles de Paris , PSL Research University , 75005 Paris , France. Faculdade de Ciencias, CQB e CQE , Universidade de Lisboa , 1749-016 Lisboa , Portugal. Departamento de Engenharia Quimica, CERENA, Instituto Superior Tecnico , Universidade de Lisboa , 1049-001 Lisboa , Portugal" |
| Journal Title: | ACS Appl Mater Interfaces |
| ISSN/ISBN: | 1944-8252 (Electronic) 1944-8244 (Linking) |
| Abstract: | "The removal of low concentrations of acetic acid from indoor air at museums poses serious preservation problems that the current adsorbents cannot easily address owing to their poor affinity for acetic acid and/or their low adsorption selectivity versus water. In this context, a series of topical water-stable metal-organic frameworks (MOFs) with different pore sizes, topologies, hydrophobic characters, and functional groups was explored through a joint experimental-computational exploration. We demonstrate how a subtle combination of sufficient hydrophobicity and optimized host-guest interactions allows one to overcome the challenge of capturing traces of this very polar volatile organic compound in the presence of humidity. The optimal capture of acetic acid was accomplished with MOFs that do not show polar groups in the inorganic node or have lipophilic but polar (e.g., perfluoro) groups functionalized to the organic linkers, that is, the best candidates from the list of explored MOFs are MIL-140B and UiO-66-2CF(3). These two MOFs present the appropriate pore size to favor a high degree of confinement, together with organic spacers that allow an enhancement of the van der Waals interactions with the acetic acid. We establish in this work that MOFs can be a viable solution to this highly challenging problem in cultural heritage protection, which is a new field of application for this type of hybrid materials" |
| Keywords: | acetic acid cultural heritage hydrophobicity metal-organic frameworks selective adsorption; |
| Notes: | "PubMed-not-MEDLINEDedecker, Kevin Pillai, Renjith S Nouar, Farid Pires, Joao Steunou, Nathalie Dumas, Eddy Maurin, Guillaume Serre, Christian Pinto, Moises L eng 2018/04/04 ACS Appl Mater Interfaces. 2018 Apr 25; 10(16):13886-13894. doi: 10.1021/acsami.8b02930. Epub 2018 Apr 11" |
