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Application in Anticounterfeiting for Multistimuli Smart Luminescent Materials Based on MOF-on-MOF.
- Source :
-
Inorganic chemistry [Inorg Chem] 2021 Oct 04; Vol. 60 (19), pp. 15001-15009. Date of Electronic Publication: 2021 Sep 20. - Publication Year :
- 2021
-
Abstract
- The generation of smart responsive materials that can perform multiple drastic optical outputs upon different triggers provides a good platform to encode and hide the information and create multilevel security. In this paper, a smart multiresponsive MOF-on-MOF material was reported using one MOF ( HPU-14 ) as a platform to grow ZIF-8 on the outer layer, combining different emitter centers such as anthracene (ANT) and lanthanide ions (Ln <superscript>3+</superscript> ) confined into two MOFs. Due to the existence of ANT in the pores of ZIF-8 , this composite material can exhibit reversible photoswitching behavior under a 365 nm ultraviolet (UV) lamp and enable "resetting and reusing" dynamic anticounterfeiting application. Meanwhile, when treated by an acid/alkali gas, this material can also display reversible switching behavior under 254 nm UV irradiation, which is attributed to the loading of Ln <superscript>3+</superscript> on HPU-14 . We demonstrated that this excellent practical anticounterfeiting material can decipher the right information only by following a strict stimuli sequence. Therefore, this MOF-on-MOF material synthesis technology for sophisticated counterfeiters, which makes the protected information highly secure, could open a new way to design multilevel anticounterfeiting materials.
Details
- Language :
- English
- ISSN :
- 1520-510X
- Volume :
- 60
- Issue :
- 19
- Database :
- MEDLINE
- Journal :
- Inorganic chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 34543575
- Full Text :
- https://doi.org/10.1021/acs.inorgchem.1c02455