Heavy-metal-ion capture, ion-exchange, and exceptional acid stability of the open-framework chalcogenide (NH4)(4)In12Se20
| dc.contributor.author | Manos, M. J. | en |
| dc.contributor.author | Malliakas, C. D. | en |
| dc.contributor.author | Kanatzidis, M. G. | en |
| dc.date.accessioned | 2015-11-24T16:38:43Z | |
| dc.date.available | 2015-11-24T16:38:43Z | |
| dc.identifier.issn | 0947-6539 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/8073 | |
| dc.rights | Default Licence | - |
| dc.subject | chalcogens | en |
| dc.subject | indium | en |
| dc.subject | ion exchange | en |
| dc.subject | selenium | en |
| dc.subject | solid acid | en |
| dc.subject | structural-characterization | en |
| dc.subject | supertetrahedral clusters | en |
| dc.subject | functionalized monolayers | en |
| dc.subject | microwave irradiation | en |
| dc.subject | solid-state | en |
| dc.subject | sulfide | en |
| dc.subject | zeolites | en |
| dc.subject | superlattice | en |
| dc.subject | tetrahedra | en |
| dc.subject | k2in12se19 | en |
| dc.title | Heavy-metal-ion capture, ion-exchange, and exceptional acid stability of the open-framework chalcogenide (NH4)(4)In12Se20 | en |
| heal.abstract | The hydrothermal synthesis of the purely inorganic open-framework indium selenide (NH4)(In12Se20)-In-4 (1) is reported. Compound 1 exhibits a unique three-dimensional open-framework structure. The framework of 1 shows an unusual, for a chalcogenide compound, rigidity arising from the unprecedented connection mode of its building blocks. Compound 1 possesses ion exchange capacity for Cs+, Rb+, NH4+, but it has selectivity against Na+ and Li+. It also showed exceptional stability in relatively concentrated hydrochloric acid. Ion exchange of 1 with hydrochloric water solutions can produce its solid acid analogue H-2(NH4)(2)In12Se20 The maximum cation-exchange capacity of I was found equal to two equivalents per mol, which is consistent with an exchange mechanism taking place in the ID-channels formed by the largest cavities. In addition, 1 can do ion-exchange with heavy-metal ions like Hg2+, Pb2+, and Ag+. The capacity of 1 to clean water solutions from heavy-metal ions was preliminarily investigated and found very high. Specifically, 1 can remove 99.9% of Hg2+, 99.8% of Ag+, and 94.9% of Pb2+ from aqueous solutions of each of these ions. Using different synthetic conditions, we isolated compound (NH4)(2)In12Se19 (2), which also has as good an acid stability as 1, but no ion-exchange properties. Overall, this work provides new hydrothermal synthetic approaches for isolation of all-inorganic open-framework chalcogenides. | en |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.identifier.primary | DOI 10.1002/chem.200600892 | - |
| heal.identifier.secondary | <Go to ISI>://000244231500004 | - |
| heal.identifier.secondary | http://onlinelibrary.wiley.com/store/10.1002/chem.200600892/asset/51_ftp.pdf?v=1&t=hmu8zqgy&s=87479ca145e72a19865f0c786d462ed39f4a13df | - |
| heal.journalName | Chemistry-a European Journal | en |
| heal.journalType | peer reviewed | - |
| heal.language | en | - |
| heal.publicationDate | 2007 | - |
| heal.publisher | Wiley-VCH Verlag | en |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείας | el |
| heal.type | journalArticle | - |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.type.en | Journal article | en |
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