Highly sensitive and selective fluorescent "turn-on" sensor for Ag+ detection using MAPbBr3@PCN-221(Fe): An efficient Ag+-bridged energy transfer from perovskite to MOF.

التفاصيل البيبلوغرافية
العنوان:	Highly sensitive and selective fluorescent "turn-on" sensor for Ag⁺ detection using MAPbBr3@PCN-221(Fe): An efficient Ag⁺-bridged energy transfer from perovskite to MOF.
المؤلفون:	Li, Songyuan, Zhao, Gang, Sun, Xinhang, Zheng, Jiale, Liu, Junhui, Huang, Mingju
المصدر:	Journal of Chemical Physics; 5/14/2024, Vol. 160 Issue 18, p1-12, 12p
مصطلحات موضوعية:	QUANTUM dots, ENERGY transfer, PEROVSKITE, SILVER ions, COMPOSITE materials, WATER pollution
مستخلص:	Metal ion-induced water pollution is attracting increasing public attention. Perovskite quantum dots and metal–organic frameworks (MOFs), owing to their outstanding properties, hold promise as ideal probes for detecting metal ions. In this study, a composite material, MAPbBr3@PCN-221(Fe), was prepared by encapsulating MAPbBr3 quantum dots with PCN-221(Fe), demonstrating high chemical stability and good reusability. The composite material shows a sensitive fluorescence turn-on signal in the presence of silver ions. The fluorescence intensity of the composite material exhibits a linear relationship with the concentration of Ag⁺ in the solution, with a low detection limit of 8.68 µM. Moreover, the fluorescence signal exhibits a strong selectivity for Ag⁺, enabling the detection of Ag⁺ concentration. This fluorescence turn-on signal originates from the Ag⁺-bridged energy transfer from the conductive band of MAPbBr3 to the excited state of the MOF, which is directly proportional to the concentration of silver ions. Simultaneously, this finding may open up a new possibility in artificial controlled energy transfer from perovskite to MOF for future development. [ABSTRACT FROM AUTHOR]
	Copyright of Journal of Chemical Physics is the property of American Institute of Physics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
قاعدة البيانات:	Complementary Index

Find this article in full text from Scitation.

كن أول من يترك تعليقا!