Ultrathin hydrophobic films based on the metal organic framework UiO-66-COOH(Zr)

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 ai...

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Authors: Andres, Miguel A., Sicard, Clemence, Serre, Christian, Roubeau, Olivier, Gascon, Ignacio
Format: article
Status:Published version
Publication Date:2019
Country:España
Institution:Universidad de Zaragoza
Repository:Zaguán. Repositorio Digital de la Universidad de Zaragoza
OAI Identifier:oai:zaguan.unizar.es:78960
Online Access:http://zaguan.unizar.es/record/78960
Access Level:Open access
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oai_identifier_str oai:zaguan.unizar.es:78960
network_acronym_str ES
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repository_id_str
spelling Ultrathin hydrophobic films based on the metal organic framework UiO-66-COOH(Zr)Andres, Miguel A.Sicard, ClemenceSerre, ChristianRoubeau, OlivierGascon, IgnacioThis 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.2019info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://zaguan.unizar.es/record/78960reponame:Zaguán. Repositorio Digital de la Universidad de Zaragozainstname:Universidad de ZaragozaInglésinfo:eu-repo/grantAgreement/ES/MINECO-FEDER/MAT2017-86826-Rinfo:eu-repo/grantAgreement/ES/MINECO-FEDER/MAT2016-78257-Rinfo:eu-repo/grantAgreement/EC/FP7/608490info:eu-repo/grantAgreement/ES/DGA-FSE/E31-17Rinfo:eu-repo/semantics/openAccessoai:zaguan.unizar.es:789602026-05-29T13:59:51Z
dc.title.none.fl_str_mv Ultrathin hydrophobic films based on the metal organic framework UiO-66-COOH(Zr)
title Ultrathin hydrophobic films based on the metal organic framework UiO-66-COOH(Zr)
spellingShingle Ultrathin hydrophobic films based on the metal organic framework UiO-66-COOH(Zr)
Andres, Miguel A.
title_short Ultrathin hydrophobic films based on the metal organic framework UiO-66-COOH(Zr)
title_full Ultrathin hydrophobic films based on the metal organic framework UiO-66-COOH(Zr)
title_fullStr Ultrathin hydrophobic films based on the metal organic framework UiO-66-COOH(Zr)
title_full_unstemmed Ultrathin hydrophobic films based on the metal organic framework UiO-66-COOH(Zr)
title_sort Ultrathin hydrophobic films based on the metal organic framework UiO-66-COOH(Zr)
dc.creator.none.fl_str_mv Andres, Miguel A.
Sicard, Clemence
Serre, Christian
Roubeau, Olivier
Gascon, Ignacio
author Andres, Miguel A.
author_facet Andres, Miguel A.
Sicard, Clemence
Serre, Christian
Roubeau, Olivier
Gascon, Ignacio
author_role author
author2 Sicard, Clemence
Serre, Christian
Roubeau, Olivier
Gascon, Ignacio
author2_role author
author
author
author
description 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.
publishDate 2019
dc.date.none.fl_str_mv 2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://zaguan.unizar.es/record/78960
url http://zaguan.unizar.es/record/78960
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv 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
info:eu-repo/grantAgreement/ES/DGA-FSE/E31-17R
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv
publisher.none.fl_str_mv
dc.source.none.fl_str_mv reponame:Zaguán. Repositorio Digital de la Universidad de Zaragoza
instname:Universidad de Zaragoza
instname_str Universidad de Zaragoza
reponame_str Zaguán. Repositorio Digital de la Universidad de Zaragoza
collection Zaguán. Repositorio Digital de la Universidad de Zaragoza
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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