title: Two Dimensional Host-Guest Metal-Organic Framework Sensor with High Selectivity and Sensitivity to Picric Acid.
abstract: A dye-sensitized metal-organic framework, TMU-5S, was synthesized based on introducing the laser dye Rhodamine B into the porous framework TMU-5. TMU-5S was investigated as a ratiometric fluorescent sensor for the detection of explosive nitro aromatic compounds and showed four times greater selectivity to picric acid than any state-of-the-art luminescent-based sensor. Moreover, it can selectively discriminate picric acid concentrations in the presence of other nitro aromatics and volatile organic compounds. Our findings indicate that using this sensor in two dimensions leads to a greatly reduced environmental interference response and thus creates exceptional sensitivity toward explosive molecules with a fast response.
authors.affiliation: Department of Chemistry, Faculty of Sciences, Tarbiat Modares University , Tehran 14117-13116, Iran.
authors.forename: Minoo
authors.initials: M
authors.lastname: Bagheri
authors.affiliation: Department of Chemistry, Faculty of Sciences, Tarbiat Modares University , Tehran 14117-13116, Iran.
authors.forename: Mohammad Yaser
authors.initials: MY
authors.lastname: Masoomi
authors.affiliation: Department of Chemistry, Faculty of Sciences, Tarbiat Modares University , Tehran 14117-13116, Iran.
authors.forename: Ali
authors.initials: A
authors.lastname: Morsali
authors.affiliation: Department of Chemistry, University of California, Berkeley ; Materials Sciences Division, Lawrence Berkeley National Laboratory; Kavli Energy Nanoscience Institute, Berkeley, California 94720, United States.
authors.forename: Alexander
authors.initials: A
authors.lastname: Schoedel
keywords: metal−organic frameworks; picric acid; ratiometric fluorescent sensor; selectivity; sensitivity