掺硼金刚石厚膜电极污水处理实验研究

##陈兴峰,等#掺硼金刚石厚膜电极污水处理实验研究http:MZZHD.chinajourna.lnet.cnE-mai:[e-mail]5机械制造与自动化6:2006(:Z060209);2007:(1985)),,,,,:掺硼金刚石厚膜电极污水处理实验研究,,,,,(,210016):EACVD(electron-assistedhotfilamentchemicalvapordeposition),IrO2/Ta2O5,IrO2/Ta2O5(3.4V)()IrO2/Ta2O5,(chemicaloxygendemand,COD)SEM,IrO2/Ta2O5,,:;;;:TB321;X703:B:1671-5276(2008)04-0012-03ExperimentalStudyonBoron-DopedDiamondThickFilmasElectrodeforWastewaterTreatmentCHENXing-feng,DAIJun-zh,iHUANGMing-min,ZUODun-wen,ZHOULiang,KANGJing(CollegeofMechanicalandElectricalEngineering,NanjingUniversityofAeronauticsandAstronautics,Nanjing210016,China)Abstract:Borondopeddiamondthickfimlelectrodeispreparedinasel-fmadeEACVDsystem.Theperformanceiscomparedandinvestigatedbetweentheelectrochemicalpropertyofborondopeddiamondthickfimlandoneoftraditionalcoatedtitaniumelectrodemateria.lTheresultsshowthattheborondopeddiamondthickfimlhaswiderelectrochemicalwindow(approxmiate3.4V)andlowerbackgroundcurrent(nearzero)thanIrO2/Ta2O5coatedtitaniumelectrode.SeriouslypollutedwatercanbetreatedwiththeborondopeddiamondthickfimlelectrodeandIrO2/Ta2O5coatedtitaniumelectrode.TheexpermientresultsdemonstratethattheCODofthewastewatertreatedwiththediamondelectrodedecreasesmorequicklythanthatwiththecoatedtitaniumone.Itisalsoshownthattheborondopeddiamondelectrodeishashigherefficiencyandmorestabilityaswellasbettercorrosionresistance.Itcanbesurethatitisaverypromisingelectrode.Keywords:borondopeddiamondthickfimlelectrode;electrochemicalproperty;wastewatertreatmen;tCOD0引言,,,,,,,,,[1,2],[3,4],,,[5,6],,IrO2/Ta2O5,1试验CVD(EACVD)100mm,1.2mm#12###陈兴峰,等#掺硼金刚石厚膜电极污水处理实验研究MachineBuildingAutomation,Aug2008,37(4):12~14,32:2500e~2650e,780e~800e,10V~40V,(2.5~3)kPa,H21000SCCM,4%,CH3CH2OH,B2O3,B2O3C2H5OH01006[3]IrO2/Ta2O5,,IrO2/Ta2O5,(),AgCl/Ag(NSE)(SCE),1mol/LH2SO4,-2V~3V,50mV/sIrO2/Ta2O5(1)IrO2/Ta2O5,,2A,5mmCOD,(:JOELJSM7001FFESEM)12实验结果与分析2.1掺硼金刚石厚膜电极的电化学性能2(a),2(b)IrO2/Ta2O5,IrO2/Ta2O5-1.2V,2.2V,3.4V,IrO2/Ta2O5-0.5V1.2V,1.7V,,1.5V~2.0V[7],,,IrO2/Ta2O5,IrO2/Ta2O5,,,IrO2/Ta2O5,2IrO2/Ta2O53IrO2/Ta2O5COD2.2掺硼金刚石厚膜电极对污水的处理COD,3IrO2/Ta2O5COD8000mg/L,2h,COD900mg/L,IrO2/Ta2O5#13###陈兴峰,等#掺硼金刚石厚膜电极污水处理实验研究http:MZZHD.chinajourna.lnet.cnE-mai:[e-mail]5机械制造与自动化6COD1800mg/L4,0,12IrO2/Ta2O5,4,1,2,IrO2/Ta2O545IrO2/Ta2O5COD20000mg/L5,3,COD,IrO2/Ta2O5COD,,IrO2/Ta2O5,6,0,12IrO2/Ta2O5,6,1,2IrO2/Ta2O5,5IrO2/Ta2O5COD7(a)7(b)SEM,7(c)7(d)IrO2/Ta2O56SEM7,,IrO2/Ta2O5,IrO2/Ta2O57IrO2/Ta2O5SEM3结论,IrO2/Ta2O5(3.3V)IrO2/Ta2O5,IrO2/Ta2O5,,,:;;IrO2/Ta2O5(32)#14###蒋天合,等#油气润滑应用在高速轴承中的实验研究http:MZZHD.chinajourna.lnet.cnE-mai:[e-mail]5机械制造与自动化63.1合适的润滑油粘度,(),,,,,,,3.2较大的载荷要求,,,,3.3较高的温度条件,,,,,3.4发热量低散热快,,,,,,,4总结,,,,,,,,,,,;,,,,,,,,,,:[1]Cheng-HsienWu,Yu-TaiKung.Aparametricstudyonoil/airlubricationofahigh-speedspindle[J].PrecisionEngineering,2005(29):162-167.[2]JengYRandGaoCC.Investigationofthebal-lbearingtempera-tureriseunderanoi-lairlubricationsystem[J].ProcInstnMechEngrs(val215):139-148.[3].[D].:,2005.[4].[C].2006:291-293.[5].[J].,2004(1):92-94.[6],.[J].,2000(11):35-38.[7],.[J].,2006(1):37-39.[8],.[J].,2006(10):168-170.[9].[D].:,2004.:2008-03-27(14):[1],.[M].:,2005.[2].[D].:,2004.[3],,,.BCVD[J].,2004,33(5):726-730.[4],,.[J].,1999,35(3):8-11.[5],,,.[J].,2006,27(11):2136-2139.[6].[J].,2002,31(2):2-3.[7],,,.[J].,2004,18(5):648-651.:2008-03-06#32#