期刊
RSC ADVANCES
卷 7, 期 86, 页码 54522-54531出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7ra11221a
关键词
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资金
- Science and Technology Plan Projects of Dongguan [2016108101005]
- Sichuan University of Science and Engineering [2015RC26]
- Innovative Entrepreneurial Training Plan of undergraduates in Guangdong Province [20170571005, 20170571007, 201705710011, 20170571016, 20170571019, 20170571012, 20170571060, 20170571078]
- Public Research and Capacity Building Projects of Department of Guangdong Province [2017A010103022]
- Natural Science Foundation of Guangdong Province [2017A030313079]
- Science Foundation funded project of Guangdong Medical University [Z2016001, M2016023]
The hydrothermal reaction of Cd(II) salt with rigid tetracarboxylate ligand, terphenyl-3,3 '',5,5 ''-tetracarboxylic acid (H4L) produced a new metal-organic framework (MOF) {[Cd-2(L)(DMF) 3].0.5DMF}(n) (1). Single crystal X-ray diffraction showed that MOF 1 possesses a 3D microporous framework with 4-connected Dia topology which is based on {Cd-2(CO2)(4)} subunits. MOF 1 is a promising dual functional sensor with high selectivity and sensitivity for the detection and recognition of nitroaromatics (NACs) and Fe3+ ions via alleviation of its fluorescence intensity. Furthermore, 1 also has an excellent capacity to adsorb methylene blue (MB) with high selectivity, and it retains almost similar adsorption performance after being recycled several times. The observed decrease in fluorescence intensity of 1 in the presence of NACs has been addressed by theoretical calculations which indicate that the intensity alleviation of 1 in the presence of NACs can be attributed to an electron and resonance energy transfer between 1 and nitro analytes.
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