A novel luminescent Pb(ii) – organic framework exhibiting a rapid and selective detection of trace amounts of NACs and Fe3+ with excellent recyclability. Issue 19 (28th April 2017)

• Record Type: Journal Article
• Authors: Luo, Xuan; Zhang, Xiao; Duan, Yuanling; Wang, Xiaolin; Zhao, Jiaming
• Is Part Of: Dalton transactions. Volume 46:Issue 19(2017)
• Page Start: 6303
• Page End: 6311
• Publication Date: 2017-04-28
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c7dt00715a
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : A novel Pb MOF used as a fluorescent probe for nitroaromatic explosives and Fe 3+ shows high sensitivity and selectivity. Abstract : A novel three-dimensional metal organic framework, Pb3 O2 L (1 ) (H2 L = 4-(1 H -tetrazol-5-yl)phenol), with a unique 3D network structure exhibits excellent luminescence and good stability in water and other organic solvents.1 can act as a promising dual functional sensor for the detection and recognition of nitroaromatic explosives (NACs) and Fe 3+ ions via fluorescence quenching with high selectivity and sensitivity in an aqueous phase. Importantly, 1 as a fluorescent sensor of Fe 3+ can be simply and quickly regenerated, which represents a rare example of a reported luminescent sensor of Fe 3+ ions. Furthermore, the visible colour changes in the detection process make them easy to distinguish by the naked eyes, and luminescent test plates broaden its potential application in detection of Fe 3+ ions. Experimental and theoretical calculations indicate that the luminescence quenching can be attributed to an electron and resonance energy transfer between the MOF and analytes. The present study contributes to the development of MOF materials research, specifically in their application as biological and environmental fluorescent sensors.