光催化體系(FePW4簇-g-C3N4-Fenton)降解農(nóng)藥百菌清和福美雙效果觀察.pdf

1、光催化光催化體系體系（FePWFePW4簇gCgC3N4FentonFenton）降解農(nóng)藥百菌清和福美雙效）降解農(nóng)藥百菌清和福美雙效果觀察果觀察DegradationofPesticideChlothalonilFumeiinPhotocatalyticSystem(FePW4ClustergC3N4Fenton)申請人：尤歡學(xué)科專業(yè):養(yǎng)殖研究方向：環(huán)境毒理學(xué)位類別：專業(yè)碩士指導(dǎo)教師：董武教授論文提交日期：二○一八年五月碩士學(xué)位論文分類

2、號S481.8ICS學(xué)校代碼10136學(xué)號201600256DegradationofPesticideChlothalonilFumeiinPhotocatalyticSystem(FePW4ClustergC3N4Fenton)AbstractThewidespreaduseofpesticidesposesacertainthreattohumanhealththeecologicalenvironment.Therefethed

3、egradationmonitingofpesticideshascausedwidepublicconcern.ThenewphotocatalystFePW4clustergC3N4cancombinewithlighthydrogenperoxidetoeffectivelydecomposechlothalonilthiramwhichusesFePW4asthereactionsiteactsonthesurfaceofgC3

4、N4inthefmofnoncovalentbond.Ithastheadvantagesofhighcatalyticefficiencynopollutionrecyclabilityabundantelementssimplepreparationcheaprawmaterials.FreeironionscanbeoxidizedwithH2O2toenhanceitscatalyticeffect.Thisstudyusedt

5、hisphotocatalysttodegradechlothalonilthiram4hpfzebrafishembryoswereusedfbiologicaldetection.Mphologicalchangeswereobservedtodeterminethedegradationeffectofphotocatalystsonpesticides.Meanwhilethedegradationeffectofphotoca

6、talystwasdetectedagainbyhighperfmanceliquidchromatography(HPLC).Resultsshowedthatshowedthatchlothalonil(tetrachloisophthalonitrile)couldbedegradedbythephotocatalystFePW4clustergC3N4.Thezebrafishmtalityratedecreasedfrom90

7、%to39%at30minafterlightirradiation.Commerciallyavailablechlothalonilthiramcanbedegradedbyphotocatalyststhebenticularcdbendingphenomenondisappears.Duringtheexperimentliquidchromatographybiologicaldetectionshowedthatcommer

8、ciallyavailablechlothalonilcontainedacertainamountofthiramcomponentsthephotocatalystcouldalsobedegradedbythiram.Biologicaldetectionhashighthroughputfastcheapstrongsensitivitycanbeusedinpracticalapplicationshasimptantsign

9、ificanceintheassessmentoftoxicityafterdegradationofpesticides.Thepointofinnovationinthisstudyisusingofbiomonitingcombinedwithchemicalmethodstodetecttheeffectofnewphotocatalystsonthedegradationofpesticideswhetherthetoxici