期刊
HELIYON
卷 5, 期 1, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.heliyon.2019.e01189
关键词
Biochemistry; Chemistry; Chemical engineering; Organic chemistry; Environmental science; Biotechnology
资金
- FCT [SFRH/BPD/87632/2012]
- Fundacao para a Ciencia e a Tecnologia (FCT) [AGR/UID00239/2013]
The present study evaluates biosorption efficiencies of pesticides atrazine, fluazifop-P-butyl, lactofen, lambda-cyhalothrin and chloropyrifos on corks of Quercus cerris and Quercus suber trees. The studies were carried out in batch and effects of pH (3, 7 and 9), temperature (10, 20, 30 and 40 degrees C), and time on adsorption were measured. Pesticide analyzes were performed with an Ion-trap Mass Spectrometer following the SANCO/10232/2006 EU extraction protocol for pesticides. The results show that the highest adsorption efficiency (80% and 70%) of the pesticides was found at pH 3, 30 degrees C and 360 minutes. The adsorption kinetics of pesticides followed pseudo-second order and pseudo-first order kinetics. The results obtained in this study show that Q. cerris and Q. suber corks can be used to develop efficient and economical cork-based alternatives for the treatment of environments contaminated with pesticides.
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