An uncommon 3D 3,3,4,8-c Cd(II) metal-organic framework for highly efficient luminescent sensing and organic dye adsorption:

experimental and theoretical insight

Lu Lu, Jian Wu, Jun Wang, Jian Qiang Liu, Bao-Hong Li, Amita Singh, Abhinav Kumar, Stuart Batten

Research output: Contribution to journalArticleResearchpeer-review

14 Citations (Scopus)

Abstract

A new CdIJII) based metal–organic framework (MOF), having formula {(CH3)2NH2)6ijCd5IJL)4]·H2O·3DMF}n (1), has been synthesized based on a rigid tetracarboxylate ligand of terphenyl-3,3″,5,5″-tetracarboxylic acid (H4L). 1 shows a complicated 3D tetranodal 3,3,4,8-c network with uncoordinated –COO− groups. The highly selective luminescent sensing of 2,4-dinitrophenol (2,4-DNP), 2,4,6-trinitrophenol (TNP) and ferric ions was studied for 1 through the alleviation in its fluorescence intensity. The detection limit of 2,4-DNP was found to be 0.84 ppm, which is 20 times higher than that of 1,3,5-trimethylbenzene, demonstrating greater and selective quenching ability. The possible mechanism associated with the decrease in fluorescence intensity of 1 in the presence of nitroaromatics (NACs) has been addressed by theoretical calculations. Furthermore, 1 displays excellent capacity to adsorb methylene blue (MB) with high selectivity, and it maintains an almost identical adsorption performance after being recycled five times.
Original languageEnglish
Pages (from-to)7057-7067
Number of pages11
JournalCrystEngComm
Volume19
Issue number46
DOIs
Publication statusPublished - 2017

Keywords

  • luminescent metal-organic
  • Luminescence
  • Rare earth elements

Cite this

Lu, Lu ; Wu, Jian ; Wang, Jun ; Liu, Jian Qiang ; Li, Bao-Hong ; Singh, Amita ; Kumar, Abhinav ; Batten, Stuart. / An uncommon 3D 3,3,4,8-c Cd(II) metal-organic framework for highly efficient luminescent sensing and organic dye adsorption: experimental and theoretical insight. In: CrystEngComm. 2017 ; Vol. 19, No. 46. pp. 7057-7067.
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abstract = "A new CdIJII) based metal–organic framework (MOF), having formula {(CH3)2NH2)6ijCd5IJL)4]·H2O·3DMF}n (1), has been synthesized based on a rigid tetracarboxylate ligand of terphenyl-3,3″,5,5″-tetracarboxylic acid (H4L). 1 shows a complicated 3D tetranodal 3,3,4,8-c network with uncoordinated –COO− groups. The highly selective luminescent sensing of 2,4-dinitrophenol (2,4-DNP), 2,4,6-trinitrophenol (TNP) and ferric ions was studied for 1 through the alleviation in its fluorescence intensity. The detection limit of 2,4-DNP was found to be 0.84 ppm, which is 20 times higher than that of 1,3,5-trimethylbenzene, demonstrating greater and selective quenching ability. The possible mechanism associated with the decrease in fluorescence intensity of 1 in the presence of nitroaromatics (NACs) has been addressed by theoretical calculations. Furthermore, 1 displays excellent capacity to adsorb methylene blue (MB) with high selectivity, and it maintains an almost identical adsorption performance after being recycled five times.",
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author = "Lu Lu and Jian Wu and Jun Wang and Liu, {Jian Qiang} and Bao-Hong Li and Amita Singh and Abhinav Kumar and Stuart Batten",
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An uncommon 3D 3,3,4,8-c Cd(II) metal-organic framework for highly efficient luminescent sensing and organic dye adsorption: experimental and theoretical insight. / Lu, Lu; Wu, Jian; Wang, Jun; Liu, Jian Qiang; Li, Bao-Hong; Singh, Amita; Kumar, Abhinav; Batten, Stuart.

In: CrystEngComm, Vol. 19, No. 46, 2017, p. 7057-7067.

Research output: Contribution to journalArticleResearchpeer-review

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T1 - An uncommon 3D 3,3,4,8-c Cd(II) metal-organic framework for highly efficient luminescent sensing and organic dye adsorption:

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AU - Lu, Lu

AU - Wu, Jian

AU - Wang, Jun

AU - Liu, Jian Qiang

AU - Li, Bao-Hong

AU - Singh, Amita

AU - Kumar, Abhinav

AU - Batten, Stuart

PY - 2017

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N2 - A new CdIJII) based metal–organic framework (MOF), having formula {(CH3)2NH2)6ijCd5IJL)4]·H2O·3DMF}n (1), has been synthesized based on a rigid tetracarboxylate ligand of terphenyl-3,3″,5,5″-tetracarboxylic acid (H4L). 1 shows a complicated 3D tetranodal 3,3,4,8-c network with uncoordinated –COO− groups. The highly selective luminescent sensing of 2,4-dinitrophenol (2,4-DNP), 2,4,6-trinitrophenol (TNP) and ferric ions was studied for 1 through the alleviation in its fluorescence intensity. The detection limit of 2,4-DNP was found to be 0.84 ppm, which is 20 times higher than that of 1,3,5-trimethylbenzene, demonstrating greater and selective quenching ability. The possible mechanism associated with the decrease in fluorescence intensity of 1 in the presence of nitroaromatics (NACs) has been addressed by theoretical calculations. Furthermore, 1 displays excellent capacity to adsorb methylene blue (MB) with high selectivity, and it maintains an almost identical adsorption performance after being recycled five times.

AB - A new CdIJII) based metal–organic framework (MOF), having formula {(CH3)2NH2)6ijCd5IJL)4]·H2O·3DMF}n (1), has been synthesized based on a rigid tetracarboxylate ligand of terphenyl-3,3″,5,5″-tetracarboxylic acid (H4L). 1 shows a complicated 3D tetranodal 3,3,4,8-c network with uncoordinated –COO− groups. The highly selective luminescent sensing of 2,4-dinitrophenol (2,4-DNP), 2,4,6-trinitrophenol (TNP) and ferric ions was studied for 1 through the alleviation in its fluorescence intensity. The detection limit of 2,4-DNP was found to be 0.84 ppm, which is 20 times higher than that of 1,3,5-trimethylbenzene, demonstrating greater and selective quenching ability. The possible mechanism associated with the decrease in fluorescence intensity of 1 in the presence of nitroaromatics (NACs) has been addressed by theoretical calculations. Furthermore, 1 displays excellent capacity to adsorb methylene blue (MB) with high selectivity, and it maintains an almost identical adsorption performance after being recycled five times.

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KW - Luminescence

KW - Rare earth elements

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