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Generically Dependent Continuant
RDF description of Pesticides luminescent sensing by a Tb3 -doped Zn metal-organic framework with selectivity towards parathion - http://orbis.uaslp.mx/vivo/individual/scopus12575
Organophosphorus pesticides (OPPs) such as parathion have extensive uses in agriculture and household applications. Chronic exposure to these pesticides can cause severe health and environmental issues. Therefore, a current ecological concern is associated with accumulating these noxious OPPs in food and water sources. In this work, a new Tb3 -doped Zn-LMOF (Zn-LMOF= (3D) {[Zn3(1,4 benzenedicarboxylate)3(EtOH)2]·(EtOH)0.6}∞) was synthesized by a solvent-free reaction between the Zn-LMOF and the salt TbCl3·6H2O using a high-speed ball milling. The Tb%40Zn-LMOF was thoroughly characterized by multiple spectroscopic tools, including Scanning Electron Microscopy with Energy-Dispersive X-ray Spectroscopy, and studied in-depth as a luminescent sensor for a series of pesticides (parathion, malathion, methalaxil, carbofuran, iprodione, captan and glyphosate) in aqueous methanol. The Tb%40Zn-LMOF is a long-lived green-emitting compound with luminescence originated by an efficient antenna effect from the excited energy levels of Zn-LMOF toward the 5D state of Tb3 ions, as it is displayed by its strong emission bands at 488, 545, 585, and 620 nm and a lifetime of 1.01 ms upon excitation at 290 nm. Additions of pesticides to a neutral methanolic dispersion of Tb%40Zn-LMOF modified its green emission intensity with a pronounced selectivity toward parathion within the micromolar concentration range. The detection limit for parathion was calculated to be 3.04 ± 0.2 μM for Tb%40Zn-LMOF. Based on 31P NMR and mass spectrometry studies, it is attributed to the release of lanthanide ions from Tb%40Zn-LMOF with the simultaneous formation of a Tb3 -parathion complex.
Parathion; Pesticide sensing; Terbium doping; Zn-MOF Ball milling; Energy dispersive spectroscopy; Excited states; Luminescence; Mass spectrometry; Metal-Organic Frameworks; Organic solvents; Pesticides; Scanning electron microscopy; Terbium; Terbium compounds; Unmanned aerial vehicles (UAV); captan; carbofuran; glyphosate; iprodione; lanthanide; malathion; melphalan; metal organic framework; methanol; organophosphate pesticide; parathion; pesticide; sodium chloride; solvent; tap water; terbium; zinc; Agriculture applications; Chronic exposure; Health issues; Household applications; Metalorganic frameworks (MOFs); Organophosphorus pesticide; Parathion; Pesticide sensing; Terbium doping; Zn-MOF; experimental study; laboratory method; organophosphate; pesticide; trace element; zinc; Article; controlled study; dispersion; energy dispersive X ray spectroscopy; excitation; limit of detection; long term exposure; luminescence; mass spectrometry; phosphorus nuclear magnetic resonance; scanning electron microscopy; synthesis; water supply; article; drug analysis; Ethanol
Pesticides luminescent sensing by a Tb3 -doped Zn metal-organic framework with selectivity towards parathion
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CONAHCyT, (CVU 623898); National Council of Humanities, Sciences, and Technologies