首页|Highly sensitive Fe3+luminescence detection via single-ion adsorption

Highly sensitive Fe3+luminescence detection via single-ion adsorption

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To achieve a lower detection limit has always been a goal of analytical chemists.Herein,we demonstrate the first picomolar level detection capability for Fe3+ion via luminescence detection technology.The re-sults of structural analysis and theoretical calculation show that Fe3+ions are adsorbed on the central node of Eu-DBM(DBM=dibenzoylmethane)sensor in the form of single ion at ultralow concentration.Subsequently,the pathways of photo-induced charge and energy transfer of the obtained Eu-DBM@Fe3+material have been changed,from the initial DBM-to-Eu3+before Fe3+adsorption to the ultimate DBM-to-Fe3+after adsorption process,which quenches the luminescence of Eu3+ion.This work not only ob-tains the highly sensitive luminescence detection ability,but also innovatively proposes the single-ion adsorption mechanism,both of which have important scientific and application values for the develop-ment of more efficient detection agents in the future.

Luminescence detectionLanthanide complexHigh sensitivityFe3+ionSingle-ion adsorption

Yujing Li、Xiaojun Zhang、Zicheng Wang、Lina Zhao、Yuxin Li

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Key Laboratory of Function Inorganic Material Chemistry(MOE),School of Chemistry and Material Science,and School of Civil Engineering,Heilongjiang University,Harbin 150080,China

Department of Food & Environmental Engineering,East University of Heilongjiang,Harbin 150066,China

国家自然科学基金Harbin Manufacturing Science and Technology Innovation Talent ProjectOutstanding Youth science Foundation of Heilongjiang UniversitySpecial Project of Joint Dairy College in East University of Heilongjiang-National Dairy Engineering and Technology Research Cen

220750712022CXRCCG016JCL202002LHXYDS202001

2024

10.1016/j.cclet.2023.108532

中国化学快报(英文版)
中国化学会

中国化学快报(英文版)

CSTPCD
影响因子：0.771
ISSN：1001-8417
年,卷(期)：2024.35(1)
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