A dual-emitting 4d–4f nanocrystalline metal–organic framework as a self-calibrating luminescent sensor for indoor formaldehyde pollution. Issue 23 (31st May 2016)

• Record Type: Journal Article
• Authors: Hao, Ji-Na; Yan, Bing
• Is Part Of: Nanoscale. Volume 8:Issue 23(2016)
• Page Start: 12047
• Page End: 12053
• Publication Date: 2016-05-31
• Subjects: Nanoscience -- Periodicals; Nanotechnology -- Periodicals; 620.505
• DOI: 10.1039/c6nr02446g
• Languages: English
• ISSNs: 2040-3364

Abstract

Abstract : A novel metal–organic framework nanocomposite (Ag + /Eu 3+ -MOF) with dual-emissions was constructed and acted as the first example of a self-calibrating MOF sensor for indoor formaldehyde (FA) with high selectivity, excellent sensitivity, and fast response. Abstract : A dual-emissive 4d–4f Ag(i )–Eu(iii ) functionalized MOF nanocomposite was fabricated and utilized as a self-calibrating luminescent nanoprobe for detecting indoor formaldehyde (FA). The implantation of Ag + ions can tune the dual-emissive characters of the material. FA can interact with the Ag + ions and induce opposite luminescence behaviors of the two emitters in the singular molecular material, thus realizing its recognition. This nanoprobe for FA exhibits many merits, such as excellent selectivity, high sensitivity with a detection limit of 51 ppb, fast response, room-temperature testing ability, easy preparation and low cost. This is the first example of a MOF-implicated self-calibrated sensor for indoor FA detection.