Eu3+-Postdoped UIO-66-Type Metal-Organic Framework as a Luminescent Sensor for Hg2+ Detection in Aqueous Media.
Zhang XiaoxiongWenjun ZhangLi CuiliuQin XiaohongZhu ChengyuPublished in: Inorganic chemistry (2019)
Because of its extreme toxicity, the determination of Hg2+ in aqueous solution is an important subject for human health and environmental monitoring. In this study, a novel UIO-66-type metal-organic framework (MOF) doped with Eu3+ (isophthalic acid and 2,6-pyridinedicarboxylic acid and zirconium chloride served as the organic connectors and metal precursor, respectively) was prepared by a hydrothermal method and postsynthetic modification. The obtained lanthanide MOFs exhibited good photothermal and fluorescence stability in aqueous solution. As a luminescent probe, dispersions of the material can specifically recognize Hg2+ in many ions and have a detection limit of 8.26 nM. This novel lanthanide MOF shows great potential applications for biosensing, imaging, environmental analysis, and so on.
Keyphrases
- metal organic framework
- aqueous solution
- human health
- risk assessment
- climate change
- label free
- photodynamic therapy
- loop mediated isothermal amplification
- real time pcr
- quantum dots
- high resolution
- oxidative stress
- drug delivery
- cancer therapy
- drug release
- ionic liquid
- solid phase extraction
- anaerobic digestion
- mass spectrometry
- molecularly imprinted
- sensitive detection
- data analysis