78960 20200716101458.0 doi 10.3762/bjnano.10.65 sideral 111342 ART-2019-111342 eng (orcid)0000-0003-3691-3437 Andres, Miguel A. Universidad de Zaragoza Ultrathin hydrophobic films based on the metal organic framework UiO-66-COOH(Zr) 2019 Access copy available to the general public Unrestricted This work reports on the fabrication, optimization and characterization of ultrathin films containing submicrometer particles (sMPs) of the hydrophilic and water stable UiO-66-COOH(Zr) metal organic framework (MOF). MOF particles of approximate to 200 nm have been synthesized and assembled at the air-water interface by the Langmuir-Blodgett technique. The use of different solvents, mixtures of solvents and surfactants has been investigated in order to improve the stability of MOF dispersions and reduce particle aggregation. The compact MOF/surfactant films containing 10 wt % octadecylphoshonic acid (ODP) have been deposited on substrates of different nature by Langmuir-Blodgett (LB) and Langmuir-Schaefer (LS) methods, showing that the presence of even only one MOF/ODP monolayer can increase the water contact angle of highly hydrophilic substrates such as mica or glass up to 120 degrees. These films were characterized by scanning electron microscopy, grazing incidence X-ray diffraction, Fourier transform infrared spectroscopy and atomic force microscopy, revealing the formation of a continuous film where ODP molecules adopt an almost vertical position and cover MOF particles. Moreover, the presence of MOF particles significantly enhances the surface roughness and allows ultrathin, hydrophobic coverage to be obtained. Finally, it has been shown that the crystallinity and the porosity of the MOF remains almost unaltered in MOF/ODP films. info:eu-repo/grantAgreement/ES/MINECO-FEDER/MAT2017-86826-R info:eu-repo/grantAgreement/ES/MINECO-FEDER/MAT2016-78257-R info:eu-repo/grantAgreement/EC/FP7/608490/EU/Energy efficient MOF-based Mixed Matrix Membranes for CO2 Capture/M4CO2 info:eu-repo/grantAgreement/ES/DGA-FSE/E31-17R info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 2.612 2019 MATERIALS SCIENCE, MULTIDISCIPLINARY 154 / 314 = 0.49 2019 Q2 T2 PHYSICS, APPLIED 58 / 154 = 0.377 2019 Q2 T2 NANOSCIENCE & NANOTECHNOLOGY 63 / 103 = 0.612 2019 Q3 T2 0.663 2019 Electrical and Electronic Engineering 2019 Q1 Nanoscience and Nanotechnology 2019 Q2 Physics and Astronomy (miscellaneous) 2019 Q2 Materials Science (miscellaneous) 2019 Q2 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Sicard, Clemence Serre, Christian (orcid)0000-0003-2095-5843 Roubeau, Olivier Universidad de Zaragoza (orcid)0000-0002-3492-6456 Gascon, Ignacio Universidad de Zaragoza 2012 755 Universidad de Zaragoza Dpto. Química Física Área Química Física 2003 395 Universidad de Zaragoza Dpto. Física Materia Condensa. Área Física Materia Condensada 10 (2019), 654-665 Beilstein j. nanotechnol. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2190-4286 710830 http://zaguan.unizar.es/record/78960/files/texto_completo.pdf Versión publicada 78333 http://zaguan.unizar.es/record/78960/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:78960 articulos driver 2020-07-16-09:11:32 ARTICLE