A CO2 optical sensor based on self-assembled metal-organic framework nanoparticles
Chocarro Ruiz, Blanca (Institut Català de Nanociència i Nanotecnologia)
Pérez-Carvajal, Javier (Institut Català de Nanociència i Nanotecnologia)
Avci, Civan (Institut Català de Nanociència i Nanotecnologia)
Calvo Lozano, Olalla (Institut Català de Nanociència i Nanotecnologia)
Alonso Carmona, Maria Isabel (Institut de Ciència de Materials de Barcelona)
Maspoch Comamala, Daniel (Institut Català de Nanociència i Nanotecnologia)
Lechuga, Laura M (Institut Català de Nanociència i Nanotecnologia)

Date:	2018
Abstract:	The development of devices for sensing and monitoring CO levels is crucial for many fields such as food packaging and for human safety indoors. Herein the fabrication of an optical CO sensor by integration of a metal-organic framework (MOF) onto bimodal optical waveguides is reported. This sensor is constructed via self-assembly of a transparent film of zeolitic imidazolate framework-8 (ZIF-8) nanoparticles (size: 32 ± 5 nm) on the waveguides. The nanoZIF-8-based sensor exhibits a broad linear response, with limits of detection of 3130 ppm at room temperature and 774 ppm at 278 K. Furthermore, it is robust, selective, fast and reusable, and can be stored under humid conditions with no loss in performance.
Grants:	European Commission 615954 Ministerio de Economía y Competitividad MAT2016-79053-P Ministerio de Economía y Competitividad MAT2015-65354-C2-1-R Ministerio de Economía y Competitividad SEV-2015-0496 Ministerio de Economía y Competitividad SEV-2013-0295 Agència de Gestió d'Ajuts Universitaris i de Recerca 2014/SGR-624 Agència de Gestió d'Ajuts Universitaris i de Recerca 2014/SGR-80
Rights:	Tots els drets reservats.
Language:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Subject:	Food packaging ; Humid conditions ; Limits of detection ; Linear response ; Metal organic framework ; Optical CO2 sensors ; Transparent films ; Zeolitic imidazolate framework-8
Published in:	Journal of materials chemistry, Vol. 6, issue 27 (Jul. 2018) , p. 13171-13177, ISSN 2050-7496

DOI: 10.1039/c8ta02767f

Post-print 9 p, 1.4 MB

The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Catalan Institute of Nanoscience and Nanotechnology (ICN2)
Articles > Research articles
Articles > Published articles