Journal
OPTIK
Volume 154, Issue -, Pages 315-319Publisher
ELSEVIER GMBH, URBAN & FISCHER VERLAG
DOI: 10.1016/j.ijleo.2017.09.110
Keywords
Ultraviolet light; Absorbance; Pesticide degradation; Imidacloprid
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Funding
- National Natural Science Foundation of China [61401173]
- Science Project of the National Ministry of Housing and Urban-Rural Development [2016K4069]
- Spark Program Project of Ministry of Science and Technology [2015GA690010]
- Natural Science Research Project of Higher Education Institutions in Jiangsu Province [16KJB510003, 17KJA510001]
- Natural Science Foundation Project of Huaiyin Institute of Technology [16HGZ004]
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Absorption spectrum of imidacloprid was measured using spectrophotometer and the most intensive characteristic peak (269 nm) was found. The function relationship between imidacloprid concentration and absorbance was obtained with a good linear relationship(R > 0.99). The hardware platform for pesticide degradation was designed and built based on ultraviolet light technology, and imidacloprid degradation experiments were conducted based on the platform. It was proposed to describe degradation effect using absorbance change, and prediction model of pesticide residues degradation was obtained according to the relationship between degradation time and absorbance. The results showed that it was feasible to characterize ultraviolet degradation effect according to absorbance change, degradation rate was 4.71% after ultraviolet irradiation for 1 minute, and it was 98.43% after 10 minutes. (C) 2017 Elsevier GmbH. All rights reserved.
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