TiO2光催化降解林可霉素废水的研究刘新育副本

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PhotocatalyticdegradationoflincomycinwastewaterbyTiO2catalysisLiuXinyu1,ZhangDongsheng1,ZhangLihua2,ZhaoQing2,JiaXincheng1,ChenHongge1(1.CollegeofLifeScience,HenanAgriculturalUniversity,Zhengzhou450002,China;2.NanyangPukangPharmaceuticalCo.,Ltd.,Nanyang473053,China)TiO21,1,2,2,1,1(1.,450002;2.,473053)[]250W,TiO2,。,TiO20.4g/L,pH5.0,60mg/L,90min,100%。1%()Cu2+TiO2,TiO2。,。[];TiO2;[]X703.1[]B[]1005-829X(2009)03-0040-03Abstract:Usinga250Wultravioletlampasthelightsource,TiO2ascatalyst,theconditionsofphotocatalyticdegradationoflincomycinhavebeeninvestigated.TheresultsshowthatwhentheTiO2dosageis0.4g/L,thesolu-tionpH5.0,theinitiallincomycinconcentration60mg/Landthephotoreactiontime90min,thedegradationrateoflincomycincouldreach100%.TheexperimentsalsodemonstratethatwhenthecompositeTiO2isdopedwith1%ofCu2+,itsphotocatalyticactivityishigherthanpureTiO2.Whenthisoptimizedphotocatalyticdegradationsystemisusedfortreatinglincomycinwastewater,Lincomycincanberemovedcompletelyfromthewastewater.Keywords:lincomycin;TiO2;photocatalysis,,。BOD/COD,,,,。,,。,〔1〕,,〔2〕。TiO2,,〔3〕、〔4〕、〔5〕,。TiO2,,pH、、、。11.1TiO2,≤30nm,TiO2≥98%;,;———;HI8424pH;220V,250W。1.2TiO2Cu(NO3)2·3H2O50.736g(0.21mol),0.42mol/LCu(NO3)2500mL。-TiO2。175mL[](2008A180010)29320093IndustrialWaterTreatmentVol.29No.3Mar.,200940400mL,17.018g(0.05mol)、15mL、60mL20mL,30min,0.42mol/LCu(NO3)21.2mL,1h。Cu2+TiO2。100℃,,450℃3h,1%()Cu2+TiO2〔6〕。1.31.3.11.000g50mL,,500mL,2.000g/L。30mL1000mL,60mg/L。1000mL(1000mL),0.4gTiO2,30min,250W,,5cm,,25℃。,3000r/min30min,。1.3.2,〔7〕,,(1):η=C0-CC0×100%(1):C0———,mg/L;C———,mg/L。1.3.31100,,:0.05mol/L(85%pH6.0)-,4∶6,1.0mL/min,214nm。22.160mg/L0.4g/LTiO2,,1。1,90min,100%,,TiO2。2.260mg/LTiO2,90min,,1。1,,,,,TiO20.4g/L,100%。,。GuanghuiWang〔8〕A。TiO2,TiO2,TiO2,,,。2.3pH60mg/LHClNaOHpH,0.4g/LTiO2,pH90min,2。2,pH3~6,100%,pH,10080604020020406080100/min/%11TiO2/(mg·L-1)/%06.30.148.20.274.50.392.10.4100.00.596.40.690.80.781.60.870.9,:TiO22009-03,29(3)10080604020024681012pH/%2pH41[](1976—),2003,,,E-mail:honggeyz@163.com。[]2008-11-20()。,,HCO3-CO32-,HO·,HO·;,CO2,HO·。。2.4,TiO20.4g/L,pH5.0,90min,,2。2,60mg/L,,,。,、、,。2.560mg/L0.4g/LTiO21%Cu2+TiO2,90min,3。3,,60min,,90min。Cu2+TiO2Cu2+,TiO2Cu2+,,HO·,〔9-10〕。2.6,,60mg/L,TiO20.4g/L,pH5.0,90min。,100%,1%Cu2+,70min。TiO2。3(1),250W,60mg/L、TiO20.4g/L、pH5.0,90min,。(2)TiO21%()Cu2+,。(3)TiO2Cu2+,90min70min,100%,。[][1]SztaricskaiF,DinyaZ,BattaG.etal.Chemicalsynthesisandstructuralstudyoflincomycinsulfoxidesandasulfone[J].TheJournalofAntibiotics,1997,50(10):866-873.[2]AddamoM,AugugliaroV,Garcia-LópezE,etal.Photodegradationoflincomycininaqueoussolution[J].InternationalJournalofPhotoenergy,2006,21:1-6.[3],,,.2,4-[J].,2002,21(2):156-158.[4],,.TiO2/ZnO[J].,2003,25(1):17-19.[5],.[J].,2003,10(6):13-15.[6],,,.TiO2DNBA[J].,2004,21(9):704-707.[7].2005()[M].:,2005:915-923.[8]WangGuanghui,WuFeng,LuoMingdao,etal.EnhancedTiO2photocatalyticdegradationofbisphenolAbyβ-cyclodextrininsuspendedsolutions[J].JournalofHazardousMaterials,2006,133(1/2/3):85-91.[9],,,.TiO2[J].,2003,17(4):1-3.[10],.[J].,2003,10(2):34-36.2/(mg·L-1)/%1010020100301004010050100601007085.98075.610080604020020406080100Cu2+/%3/min2009-03,29(3)42

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