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A multifunctional Ni(II) coordination polymer: synthesis, crystal structure and applications as luminescence sensor, electrochemical probe, and photocatalyst

Abstract

A nickel coordination polymer (CP 1), {Ni(1,4-bib)1.5(TPA-Cl2)•H2O}n (1,4-bib = 1,4-bis(1H-imidazol-1-yl)benzene, H2TPA-Cl2 = 2,5-dichloro-terephthalic acid), has been synthesized under the solvothermal condition. The structure of CP 1 is a 3D 3-fold interpenetrating framework with sqc12 topology. The thermal stability and luminescence properties of CP 1 were investigated. The scanning electron microscopy (SEM) image displays that this material possesses the irregular block 3D structure. Interestingly, CP 1 can serve as a multifunctional material via its luminescent sensing, electrochemical sensing, and photocatalytic properties. The experiment results indicate that CP 1 is an efficient luminescent sensor for detecting Fe3+ ions in aqueous solution. In addition, CP 1 exhibits a sensitive and rapid electrochemical response to nitrite ions in water solution. The photocatalytic activities are evaluated for the degradation of different dye contaminants (MB, RhB, and MO), and the result demonstrates the photocatalytic efficiency of CP 1 for degradation MB is higher (92.1% for MB, 85.7% for RhB, and 86.2% for MO). Effects of different dyes, different power of UV light, and different amount of catalysts of CP 1 on the photocatalytic efficiency also explored. Finally, the mechanism of luminescence quenching effect toward Fe3+ ions, electroreduction of nitrite ions, and photocatalytic degradation of different dyes are all investigated in detail.

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Publication details

The article was received on 14 Oct 2017, accepted on 13 Nov 2017 and first published on 13 Nov 2017


Article type: Paper
DOI: 10.1039/C7DT03874G
Citation: Dalton Trans., 2017, Accepted Manuscript
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    A multifunctional Ni(II) coordination polymer: synthesis, crystal structure and applications as luminescence sensor, electrochemical probe, and photocatalyst

    J. Cui, S. hou, Y. Li and G. H. Cui, Dalton Trans., 2017, Accepted Manuscript , DOI: 10.1039/C7DT03874G

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