Sensing and photocatalytic properties of two zinc(II) coordination polymers containing bis(benzimidazole) ligands
Two Zn(II) coordination polymers (CPs), {[Zn(L1)(PA)].H2O}n (1) and [Zn(L2)(PA)]n (2) were hydrothermally synthesized. 1 and 2 exhibit promising photocatalytic activity toward the degradation of methyl violet (MV) under UV irradiation. 1 and 2 can selectively detect acetylacetone (acac)/Fe3+, and ac...
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Published in | Polyhedron Vol. 203; p. 115237 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Elsevier Ltd
15.07.2021
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Subjects | |
Online Access | Get full text |
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Summary: | Two Zn(II) coordination polymers (CPs), {[Zn(L1)(PA)].H2O}n (1) and [Zn(L2)(PA)]n (2) were hydrothermally synthesized. 1 and 2 exhibit promising photocatalytic activity toward the degradation of methyl violet (MV) under UV irradiation. 1 and 2 can selectively detect acetylacetone (acac)/Fe3+, and acac/MnO4− ions respectively, via the luminescence quenching process.
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•Two new coordination polymers were synthesized and characterized.•1 and 2 reveal high catalytic activity for degrading methyl violet (MV).•1 and 2 exhibit highly sensitive and selective sensing for acac.•1 could be an efficient probe for sensing Fe3+ ions.•2 could be an efficient probe for sensing MnO4− ions.
Two new ternary Zn(II) coordination polymers, namely {[Zn(L1)(PA)].H2O}n (1) and [Zn(L2)(PA)]n (2) (L1 = 1,3-bis(benzimidazol-1-ylmethyl)benzene, L2 = 1,4-bis(benzimidazol-1-ylmethyl)benzene, H2PA = pimelic acid), were hydrothermally synthesized and characterized. 1 shows a 1D ladder-like chain and can further form 2D supramolecular framework by π − π stacking interactions, while 2 exhibits a 2D (6,3) layer. 1 and 2 show excellent photocatalytic performance for the degradation of methyl violet under UV irradiation, the degradation efficiencies of 1 and 2 can reach 98.5% and 94.8% after 150 min, respectively. Furthermore, 1 and 2 can selectively detect acetylacetone (acac)/Fe3+ and acac/MnO4− ions, separately, via the luminescence quenching process. |
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ISSN: | 0277-5387 |
DOI: | 10.1016/j.poly.2021.115237 |