title: Nanoparticle-Directed Metal-Organic Framework/Porous Organic Polymer Monolithic Supports for Flow-Based Applications.
abstract: A two-step nanoparticle-directed route for the preparation of macroporous polymer monoliths for which the pore surface is covered with a metal-organic framework (MOF) coating has been developed to facilitate the use of MOFs in flow-based applications. The flow-through monolithic matrix was prepared in a column format from a polymerization mixture containing ZnO-nanoparticles. These nanoparticles embedded in the precursor monolith were converted to MOF coatings via the dissolution-precipitation equilibrium after filling the pores of the monolith with a solution of the organic linker. Pore surface coverage with the microporous zeolitic imidazolate framework ZIF-8 resulted in an increase in surface area from 72 to 273 m2g-1. Monolithic polymer containing ZIF-8 coating was implemented as a microreactor catalyzing the Knoevenagel condensation reaction and also in extraction column format enabling the preconcentration of trace levels of toxic chlorophenols in environmental waters. Our approach can be readily adapted to other polymers and MOFs thus enabling development of systems for flow-based MOF applications.
authors.affiliation: Department of Chemistry, University of the Balearic Islands , Carretera de Valldemossa km 7.5, E-07122 Palma de Mallorca, Spain.
authors.forename: María Del Mar
authors.initials: MD
authors.lastname: Darder
authors.affiliation: Department of Chemistry, University of the Balearic Islands , Carretera de Valldemossa km 7.5, E-07122 Palma de Mallorca, Spain.|Department of Analytical Chemistry, Faculty of Chemistry, Kashan University , 87317-51167 Kashan, Iran.
authors.forename: Shima
authors.initials: S
authors.lastname: Salehinia
authors.affiliation: Instituto Nacional del Carbon, INCAR-CSIC , P. O. 73, 33080 Oviedo, Spain.
authors.forename: José B
authors.initials: JB
authors.lastname: Parra
authors.affiliation: Department of Analytical Chemistry, University of Valencia , C. Doctor Moliner 50, E-46100 Burjassot, Valencia, Spain.
authors.forename: José M
authors.initials: JM
authors.lastname: Herrero-Martinez
authors.affiliation: Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology , Beijing 100029, China.
authors.forename: Frantisek
authors.identifier: http://orcid.org/0000-0001-6574-1537
authors.initials: F
authors.lastname: Svec
authors.affiliation: Department of Chemistry, University of the Balearic Islands , Carretera de Valldemossa km 7.5, E-07122 Palma de Mallorca, Spain.
authors.forename: Víctor
authors.initials: V
authors.lastname: Cerdà
authors.affiliation: Department of Chemistry, University of the Balearic Islands , Carretera de Valldemossa km 7.5, E-07122 Palma de Mallorca, Spain.
authors.forename: Gemma
authors.initials: G
authors.lastname: Turnes Palomino
authors.affiliation: Department of Chemistry, University of the Balearic Islands , Carretera de Valldemossa km 7.5, E-07122 Palma de Mallorca, Spain.
authors.forename: Fernando
authors.identifier: http://orcid.org/0000-0003-1458-736X
authors.initials: F
authors.lastname: Maya
keywords: catalysis; flow chemistry; flow-through support; metal−organic frameworks; monolithic columns; pollutant extraction; porous organic polymers; zinc oxide nanoparticles