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dc.contributor.authorZhou, Renwu
dc.contributor.authorZhou, Rusen
dc.contributor.authorYu, Feng
dc.contributor.authorXi, Dengke
dc.contributor.authorWang, Peiyu
dc.contributor.authorLi, Jiangwei
dc.contributor.authorWang, Xingquan
dc.contributor.authorZhang, Xianhui
dc.contributor.authorBazaka, Kateryna
dc.contributor.authorOstrikov, Kostya Ken
dc.date.accessioned2019-07-05T12:32:29Z
dc.date.available2019-07-05T12:32:29Z
dc.date.issued2018
dc.identifier.issn1385-8947
dc.identifier.doi10.1016/j.cej.2018.02.107
dc.identifier.urihttp://hdl.handle.net/10072/385480
dc.description.abstractPesticides are widely used in commercial goji Lycium barbarum cultivation to prevent damage of the delicate fruits by insects, potentially leading to insecticide and fungicide residues at levels dangerous to human health. In this study, removal of organophosphorus pesticide (OP) residues (i.e. omethoate and dichlorvos) from the surface of L. barbarum was conducted using a gas phase surface discharge (GPSD) plasma system. ICCD and GC–MS measurements showed that a homogeneous and uniform GPSD glow-like plasma could be achieved and the efficiency of OP residues degradation greatly depended on the applied voltage and plasma exposure time, with 99.55% and 96.83% efficiency recorded for omethoate and dichlorvos (DDVP), respectively after 30 min GPSD plasma exposure at the discharge voltage of 10 kV. FT-IR and chemical analysis of the intermediates produced during GPSD exposure revealed that the omethoate and DDVP molecules could be completely degraded into nontoxic species, at the appropriate dosage of GPSD plasma exposure, without compromising the quality of L. barbarum. Based on the experimental and simulation results, a mechanism of OP degradation attributed to energetic electrons and highly reactive species generated by GPSD plasma was proposed.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherElsevier Science
dc.relation.ispartofpagefrom401
dc.relation.ispartofpageto409
dc.relation.ispartofjournalCHEMICAL ENGINEERING JOURNAL
dc.relation.ispartofvolume342
dc.subject.fieldofresearchChemical engineering
dc.subject.fieldofresearchCivil engineering
dc.subject.fieldofresearchEnvironmental engineering
dc.subject.fieldofresearchcode4004
dc.subject.fieldofresearchcode4005
dc.subject.fieldofresearchcode4011
dc.titleRemoval of organophosphorus pesticide residues from Lycium barbarum by gas phase surface discharge plasma
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.hasfulltextNo Full Text
gro.griffith.authorOstrikov, Ken


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