Chain-like uranyl-coordination polymer as a bright green light emitter for sensing and sunlight driven photocatalysis
| dc.contributor.author | Gomez, Germán E. | |
| dc.contributor.author | Onna, Diego | |
| dc.contributor.author | D'Vries, Richard Fernando | |
| dc.contributor.author | Barja, Beatriz C. | |
| dc.contributor.author | Alcides Ellena, Javier | |
| dc.contributor.author | Narda, Griselda Edith | |
| dc.contributor.author | Soler-Illia, G. J.A.A. | |
| dc.date.accessioned | 2020-10-23T22:24:19Z | |
| dc.date.available | 2020-10-23T22:24:19Z | |
| dc.date.issued | 2020-07-02 | |
| dc.description.abstract | A new uranyl-coordination polymer (UCP) has been solvothermally synthesized employing succinic acid and 1,10-phenanthroline (phen) as ligands. The obtained compound with the formula [(UO2)2(phen)(succ)0.5(OH)(O)4(μ3-O)(H2O)]·H2O (UNSL-1) is classified as 1D chains showing I0O1 connectivity. Also, the asymmetric unit is composed of two hepta-coordinated uranyl centers: U1 is surrounded by five oxygen atoms from succinate, while U2 is surrounded by two nitrogen atoms from phen and three oxygen atoms from succinate ([U1O7] and [U2N2O5]). The secondary-building unit (SBU) is composed of a sharing edge tetrameric cluster linked with a succinate ligand in the [−1 0 1] direction. Besides, the chains are reinforced by π–π stacking interactions between the aromatic rings of the phen molecules to conform a 2D supramolecular arrangement. Moreover, photoluminescence experiments show strong green emission consistent with uranyl crystalline materials. Photophysical characterization was completed via low-temperature measurements (77 K) and recording the decay emission for calculating the lifetime (τobs) value. Regarding its multifunctional properties, a cation-sensing performance was achieved showing selective quenching toward iron ions in aqueous media. Finally, UNSL-1 was tested as an efficient water photocatalyst for dye degradation under simulated sunlight irradiation, exhibiting promising results for organic-pollutant water remediation. | en_US |
| dc.identifier.issn | 2050-7534 | |
| dc.identifier.uri | http://repositorio.usc.edu.co/handle/20.500.12421/4531 | |
| dc.language.iso | en | en_US |
| dc.publisher | Royal Society of Chemistry | en_US |
| dc.subject | Atoms | en_US |
| dc.subject | Crystallites | en_US |
| dc.subject | Ligands | en_US |
| dc.subject | Low temperature effects | en_US |
| dc.subject | 1 ,10-phenanthroline | en_US |
| dc.subject | Coordination Polymers | en_US |
| dc.subject | Green light emitters | en_US |
| dc.subject | Low-temperature measurements | en_US |
| dc.subject | Water treatment | en_US |
| dc.title | Chain-like uranyl-coordination polymer as a bright green light emitter for sensing and sunlight driven photocatalysis | en_US |
| dc.type | Article | en_US |
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