A Water-Stable Luminescent Metal-Organic Framework for Rapid and Visible Sensing of Organophosphorus Pesticides
文献类型： 外文期刊
作者： He, Kaiyu 1 ; Li, Zhishang 2 ; Wang, Liu 1 ; Fu, Yingchun 2 ; Quan, Haoran 1 ; Li, Yanbin 2 ; Wang, Xinquan 1 ; Gunasekar 1 ;
作者机构： 1.Zhejiang Acad Agr Sci, State Key Lab Qual & Safety Agroprod, Hangzhou 310021, Zhejiang, Peoples R China
2.Zhejiang Univ, Coll Biosyst Engn & Food Sci, Hangzhou 310058, Zhejiang, Peoples R China
3.Univ Wisconsin, Dept Biol Syst Engn, 460 Henry Mall, Madison, WI 53706 USA
关键词： water-stable; luminescent; metal-organic framework; rapid detection; organophosphorus pesticides; parathion-methyl
期刊名称：ACS APPLIED MATERIALS & INTERFACES （ 影响因子：9.229； 五年影响因子：9.57 ）
ISSN： 1944-8244
年卷期： 2019 年 11 卷 29 期
页码：
收录情况： SCI
摘要： Metal-organic frameworks (MOFs) have shown considerable prospects for sensing pesticide residues. However, the low stability of MOFs in water hinders them from testing food and environmental samples. Herein, we report an easy and cost-efficient synthesis of a water-stable zirconium luminescent MOF (Zr-LMOF) and its application for rapid, sensitive, and in situ detection of organophosphorous pesticides (OPPs). The Zr-MOF is prepared using Zr(W) and 1,2,4,5-tetrakis(4-carboxyphenyl)benzene. The synthesized Zr-LMOF rapidly absorbs trace amounts of OPP parathion methyl and indicates its presence. A low limit of detection of 0.115 yg kg(-1) (0.438 nM) with a wide linear range from 70 mu g kg(-1) to 5.0 mg kg(-1) was achieved. Satisfactory recoveries ranging from 78% to 107% were obtained for spiked food and environmental samples. Further, the Zr-LMOF was applied to imitate rapid and in situ imaging detection of pesticide residue on fresh produce nondestructively; visual signals appeared under ultraviolet light within 5 min. These results suggest that the Zr-LMOF has the potential for low-cost, rapid, and in situ imaging detection of OPPs contamination via easy-to-read visual signal.
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