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Developing a Novel Nanoscale Porphyrinic Metal-Organic Framework: A Bifunctional Platform with Sensitive Fluorescent Detection and Elimination of Nitenpyram in Agricultural Environment.
- Source :
-
Journal of agricultural and food chemistry [J Agric Food Chem] 2020 May 20; Vol. 68 (20), pp. 5572-5578. Date of Electronic Publication: 2020 May 07. - Publication Year :
- 2020
-
Abstract
- Developing a rapid sensing platform with effective pesticide degradation capabilities integrated into a single structure and realistic application is an imminent challenge to ensure sustainable agriculture and food safety. Here, we described establishment of a bifunctional nanoscale porphyrinic metal-organic framework (MOF) probe serving as a sensor for detection of trace nitenpyram and as a photocatalyst to facilitate the pesticide degradation. Based on the signal turned "on-off", the strong fluorescence of the probe was quenched by the target, leading to the sensing range from 0.05 to 10.0 μg mL <superscript>-1</superscript> and a detection limit of 0.03 μg mL <superscript>-1</superscript> . Given the versatile design by which the porphyrin photosensitizers were isolated subtly in the MOF to avoid self-quenching, the probe was endowed with sustainable and efficient pesticide photodegradation activity with a degradation rate of ∼95% for nitenpyram. Our work represents powerful all-in-one MOF-derived materials jointly for sensing and degrading pesticide residues in agricultural soils and other pesticide-contaminated environments.
Details
- Language :
- English
- ISSN :
- 1520-5118
- Volume :
- 68
- Issue :
- 20
- Database :
- MEDLINE
- Journal :
- Journal of agricultural and food chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 32348144
- Full Text :
- https://doi.org/10.1021/acs.jafc.0c01313