Fe2O3TiO2芬顿光催化协同提高处理废水能力李渊

Fe2O3/TiO2H2O2-。Fe2O33%1.0g/LH2O230mmol/L3min20mg/kg88.6%TiO253minMB-。20min98.2%20mg/kgTiO2324.5。Fe2O3/TiO2X703A1008-813X(2019)01-0068-05Fe2O3/TiO2-*(063210)AStudyonFe2O3/TiO2CokingWastewaterbyFenton-photocatalysisLiYuan,ShaoHuaxu,LiuLi*(CollegeofChemicalEngineering,NorthChinaUniversityofScienceandTechnology,TangshanHebei063210,China)Abstract：ThecompositephotocatalystFe2O3/TiO2waspreparedbyhightemperaturecalcinationmethod,andtheFenton-photocatalyticsynergisticsystemwasconstructedbyaddingH2O2todeeplydegradetheorganicwastewater.Theexperimentalresultsshowthatthedegradationrateof20mg/kgmethylenebluesolutionwasdegradedbythecompositephotocatalystwithFe2O3contentof3%atthedosageof1.0g·L-1,H2O2concentrationof30mmol·L-1,UVirradiationandreactionfor3min.Itwas88.6%,whichwas5timeshigherthantheactivityofTiO2monomer.Whenitreactedfor20min,itcandegrade98.2%of20mg/kgphenolsolution,whichwas3and24.5timesthanthatofmonomerTiO2andFentonreaction,respectively.Keywords：photocatalysis,Fentonsystem,Fe2O3/TiO2,coordination10.13358/j.issn.1008-813x.2019.0115.012019-01-15(1990-)。*(1979-)。[1]。TiO2[2-4]29120192JOURNALOFEMCCVol.29No.1Feb.201920191。[5-6][7-9]。TiO2TiO2Fe3+Fe2+H2O2Fe3+Fe2+。-TiO2Fe3+Fe2+H2O2。1Fe2O3/TiO2XRD1.1Fe2O3/TiO2TiO21%、3%、5%、7%、9%Fe(NO3)330minFe2O3/TiO2。1.2XRD1TiO2、Fe2O3Fe2O3/TiO2XRD1TiO2、Fe2O3Fe2O3/TiO2XRD。Fe2O3XRD33.4°、35.8°Fe2O3(104)(110)。TiO2XRD25.3°、27.5°、37.9°、48.2°、54.1°、55.2°、62.7°、70.4°、74.9°TiO2TiO2。Fe2O3/TiO2XRDTiO2Fe2O3TiO2Fe2O3XRDFe2O3。22.1Fe2O3/TiO2(MB)Fe2O3MB2。Fe2O3MBFe2O33%Fe2O3/TiO218min78%MB。2Fe2O3MB3MB。。18minTiO23%Fe2O3/TiO2MB73.7%64.6%13.8%MB6minMB98.8%。6。3MB1%Fe2O3/TiO2+UV3%Fe2O3/TiO2+UV5%Fe2O3/TiO2+UV7%Fe2O3/TiO2+UV9%Fe2O3/TiO2+UV1.00.80.60.40.20369121518/minC/C0H2O2+UVTiO2+UVFe2O3+UV3%Fe2O3/TiO2+UV3%Fe2O3/TiO2+H2O2+UV1.00.80.60.40.20.00369121518/minC/C010203040506070802θ/°3%Fe2O3/TiO2TiO2Fe2O3Fe2O3/TiO2-69201922.2Fe2O3/TiO2Fe2O3/TiO24。30min。120min。Fe2O33%MB。80min99.1%。5。·OH。20minTiO23%Fe2O3/TiO232%33%4%20min98%。。52.3Fe2O3/TiO2MB6MB。0.2g·L-11.4g·L-11.4g·L-1MB。1.8g·L-1。。。1.0g·L-1、1.4g·L-11.0g·L-1。6MB2.4MB7Fe2O3/TiO2MB。MB9min15min9min9min。Fe2O3/TiO21.0g·L-115min30mg/kgMB。7Fe2O3/TiO2MB2.5Fe2O3/TiO2-4Fe2O3/TiO21%Fe2O3/TiO2+H2O2+UV3%Fe2O3/TiO2+H2O2+UV5%Fe2O3/TiO2+H2O2+UV7%Fe2O3/TiO2+H2O2+UV9%Fe2O3/TiO2+H2O2+UV1.00.80.60.40.20.0020406080100120/minC/C0C/C01.00.80.60.40.20.0020406080100120/minH2O2+UVTiO2+UVFe2O3+H2O23%Fe2O3/TiO2+UV3%Fe2O3/TiO2+H2O2+UV0.20.61.01.41.8/(g·L-1)100806040200/%10ppm15ppm20ppm25ppm30ppm1.00.80.60.40.20.003691215/minC/C07020191MB。。TOC27.25mg·L-121.91mg·L-120%COD59.84mg·L-124.64mg·L-158.8%。COD、TOC。TOC。2.6Fe2O3/TiO2MB8。5MB90%。。8Fe2O3/TiO233.19Fe2O3/TiO2。-。(IPA)·OHEDTA-2Na(BQ)·O2-。。3.2-Fe2O3/TiO2-10。TiO2·OHFe3+Fe2+Fe2+H2O2·OH·OHCO2、H2O。-TiO2Fe3+TiO2-Fe3+圮Fe2+[Fe2++H2O2→Fe3++e-→Fe2+]。10Fe2O3/TiO2-4TiO2Fe(NO3)3Fe2O3/TiO2。-。Fe2O3/TiO2-TiO235Fe2O3/TiO290%。XRD-。Fe2O3/TiO21st1.00.80.60.40.20.001530456075/minC/C02nd3rd4th5thC/C01.00.80.60.40.20.00369121518/min3%Fe2O3/TiO2+EDTA-2Na3%Fe2O3/TiO2+3%Fe2O3/TiO2+3%Fe2O3/TiO2Fe3++e-→Fe2+Fe2++H2O2→Fe3++OH-+·OHH2O+h+→H++·OHUvE0(V)-0.19+3.01H2O·OHFe3+Fe2+·OHH2OFe2O3e-CBe-e-VBh+9Fe2O3/TiO2Fe2O3/TiO2-7120192(4)、。2。”。、[9]。“”“”。。。[10]。《》。。[1].[J].2018(5)50-53.[2].[J].2015(29)242.[3].[J].200515(2)1-4.[4].[J].1999(5)6-7+41.[5](〔2018〕102)[EB/OL].[2018-11-30].http//[6][EB/OL].[2018-11-20].http//hbj.changsha.gov.cn/zwpt/wrfz_30387/jdcp-qwrfz/201804/t20180427_2216811.html.[7].[J].1999(5)6-7+41.[8].[N].2016-09-09(003).[9].[J].2010(4)60-64.[10].[J].()2018(5)168-176.()-。[1]RUOSONGXMIAOMIAOWGUANGFQetal.Treatmentofco-kingwastewaterbyanovelelectricassistedmicro-electrolysisfi-lter[J].JournalofEnvironmentalSciences201866(4)165-172.[2].TiO2[J].201637(1)155-160.[3]LIULYUEMLUJ,etal.Theenrichmentofphoto-catalysisviaself-assemblyperylenetetracarboxylicaciddiimidepolymernan-ostructuresincorporatingTiO2nano-particles[J].AppliedSurfaceScience2018456645-656.[4]LIUCYUEMLIULetal.Aseparation-free3DnetworkZnO/rGO-rGHhydrogeladsorptionenrichedphotocatalysisforenvi-ronmentalapplications[J].RSCAdvances20188(40)22402-22410.[5].[J].2017(11)108-109.[6].[D].2004.[7]XIERWUMQUGetal.Treatmentofcokingwastewaterbyanovelelectricassistedmicro-electrolysisfilter[J].JournalofEnv-ironmentalSciences201866165-172.[8].[J].201744(12)107-109+112.[9].[J].201632(9)40-43.()72