Issue 20, 2023

Humidity and ultraviolet modulate color turned LnNa-based metal–organic frameworks as Bi-decryption anti-counterfeit materials

Abstract

Dynamic multi-decryption with luminescent anti-counterfeit materials still presents a challenge in information storage and security. In this work, Gd3+ is introduced into the structure of lanthanide-based metal–organic frameworks (LnMOFs) ([LnNa(HL2)2(H3L2)0.5]·EtOH, H3L2 = 5-hydroxy-isophthalic acid, abbreviated as LnHIP) to adjust the Ln–Ln distances. The emission intensity of Tb3+ and Eu3+ reached a maximum with the dilution rate of Gd3+ fixed at 50%. The temperature-dependent luminescent properties reveal thermal stability even at an ultra-low temperature. The developed samples present water sensitive properties, thus the luminescence could be quenched by water atomization. Furthermore, by combining inkjet printing and the water quenching effect, the encrypted information could be decrypted by ultraviolet irradiation and water atomization successively. These results demonstrate the promising applications of LnMOFs in dynamic information decryption with Gd3+ doping to save cost and enhance luminescence intensity.

Graphical abstract: Humidity and ultraviolet modulate color turned LnNa-based metal–organic frameworks as Bi-decryption anti-counterfeit materials

Supplementary files

Article information

Article type
Research Article
Submitted
22 Jul 2023
Accepted
22 Aug 2023
First published
23 Aug 2023

Inorg. Chem. Front., 2023,10, 5986-5996

Humidity and ultraviolet modulate color turned LnNa-based metal–organic frameworks as Bi-decryption anti-counterfeit materials

J. Wang, M. Cui, H. Yao, F. Wang and X. Li, Inorg. Chem. Front., 2023, 10, 5986 DOI: 10.1039/D3QI01413D

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements