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25920089精细化工FINECHEMICALSVol.25,No.9Sept.2008*肖凯军1,石 浩1,罗远宏1,梁燕茹2,唐旭东2(1., 510640;2., 528000):67000(BSA),、、,(γ-Al2O3)。,,20V/cm,67%46.8%,84.64%60.87%,“”,95%,。:;;;;:TQ028.8 :A :1003-5214(2008)09-0862-04TheProcessEnhancementofγ-Al2O3CeramicMembraneintheSeparationofBASbyElectricalFieldsXIAOKai-jun1,SHIHao1,LUOYuan-hong1,LIANGYan-ru2,TANGXu-dong2(1.ResearchInstituteofLightIndustryandChemicalEngineering,SouthChinaUniversityofTechnology,Guangzhou510640,Guangdong,China;2.FoshanDezhongPharmaceuticalCompany,Foshan528000,Guangdong,China)Abstract:Theperformanceofγ-Al2O3membraneunderanexternalelectricfield,includingflux,retentionrate,declinesandrecoveryoftheperformance,wasinvestigatedbytheultrafiltrationofBSA.Theresultsshowedthatbothfluxandretentionrateofγ-Al2O3membraneincreasedunderexternalpositiveelectricfieldsof20V/cmby67%and46.8%,respectively.Thefluxdeclinedecreasedfrom84.64%to60.87%andthefluxrecoveryratewashigherthan95%by“self-cleaningelectricfields”.Therefore,theanti-foulingpropertyofceramicmembranecanbegreatlyimprovedbyanelectricfield.Keywords:electricfield;ceramicmembrane;ultrafiltration;BSA;biologicalengineeringFoundationitems:Nationalkeyprojectofscientificandtechnicalsupportingprograms(2006BAD05A02);theprojectofkeybreakthroughandkeyregionbetweenGuangdongandHongkong(20060107-2);project′sachievementofscienceandtechnologyinGuangzhou(2006C13G0011) [1],,。,,,,;,,[2],[3],[4]。、,[5~7]。,,[8~10]。,,*:2007-12-04;:2008-05-04:“”(2006BAD05A02);2006(20060107-2);(2006C13G0011):(1969-),,,。,:020-87113843,E-mail:fekjxiao@scut.edu.cn。DOI:10.13550/j.jxhg.2008.09.002,[11]。67000(BSA),(γ-Al2O3)、、,。1 1.1 (67000,);(γ-Al2O3,);PES50000(MWCO50000D,)。1.2 UV-2102PC〔UNIC()〕;PHS-3C();DY-600();()。1.3 :[12]。[13]:0.2MPa2g/L(BSA)。280nm:(R)/%=(1-CP/C0)×100:CP—,mg/mL;C0—,mg/mL。:(m)、。、J0J:(m)/%=(J0-J)/J0×100:、J0J:/%=J/J0×1002 2.1 2g/L(BSA)(pH=6.8),0、4、8、12、16、20V/cm,,1。1a(BSA),ba,。,1b,pH=6.8BSA,;。1a,,20min29.7%,40min59.4%,。,20min,60min;。2.2 (BSA),2。(BSA),+4、+8、+12、+16、+20V/cm,32.0%、35.3%、43.8%、44.3%46.8%。+12V/cm,;,-20V/cm,24.0%。(BSA)4.7,pH=6.8,(BSA),,,(BSA),,,,·863·9,:,,。,(BSA),,“”,,,。2 (BSA)(25℃,0.2MPa,pH=6.8)Fig.2 ThemembraneretentionofBSAunderelectricfields(25℃,0.2MPa,pH=6.8)2.3 +20、-20V/cm3,0.2MPa,25℃pH=6.8(BSA),1。1 Table1 Declineandrecoverycoefficientoffluxunderelectricfields/(V/cm)J0/[mL/(cm2·h)]Jt/[mL/(cm2·h)]J′0/[mL/(cm2·h)]m/%/%+2071.0027.7856.6060.8779.71071.0010.9130.8784.6443.48-2071.007.2523.6789.7833.33+20V/cm,84.64%60.87%,43.48%79.71%,。,,,(BSA)。2.4 -20V/cmpH=6.8、0.2g/L(BSA)20min,,+20V/cm20min,“”,20min,3。3 (BSA)(25℃,0.2MPa,pH=6.8)Fig.3 Therecoveriesofmembranefluxinelectricfields(25℃,0.2MPa,pH=6.8) 3,105.48%、98.56%95.58%,“”。,BSA,,,。[14],,。,,BSA。,,,。20,,w(NaOH)=0.5%,。3 (1)(γ-Al2O3)pH=6.8(BSA),,。+20V/cm,1.67,28.7%46.8%,;pH=6.8(BSA)。(2)(γ-Al2O3)(BSA),,。(3),(γ-Al2O3)95%。,,“”。(907)·864·精细化工 FINECHEMICALS 25 min,32.4g,11.35g,NaOH8.4g,FAPE1.6g,40min,-(DS)(RE)4。4 Table4 Effectofwatermassfractiononthereactionefficiencyw(H2O)/%01015202530DS0.2160.4350.5310.5620.5610.513RE/%36.072.588.593.793.585.5,。、。,,,。,,,。,,,,。,20%,DSRE。3 -:0.1%,55℃,30min。75℃,40min。n()∶n()∶n(NaOH)=1∶0.6∶1.05,FAPE5%20%。NaOH62.8%93.6%,,,,、。:[1] .-[J].,2007,24(3):357-360.[2] LawrenceRamsden.Physicalpropertiesofcross-linkedandacetylatednormalandwaxyricestarch[J].Starch,1999,51(4):249-252.[3] , ,.-[J].,2006,61(4):48-50.[4] .[M].:,1999.72-73,140-141.[5] ,,,.-[J].,2007,22(5):62-66.[6] JérômeMulhbacher,PompiliaIspas-Szabo,MathieuOuellet,etal.Mucoadhesivepropertiesofcross-linkedhighamylosestarchderivatives[J].InternationalJournalofBiologicalMacromolecules,2006,40(1):9-14.[7] JérômeMulhbacher,MirceaAlexandru.Cross-linkedhighamylosestarchderivativesfordrugrelease:Ⅲ.Diffusionproperties[J].InternationalJournalofPharmaceutics,2005,297(1-2):22-29.[8] NaotsugeNagasawa,ToshiakiYagi,TamikazuKume,etal.Radiationcrosslinkingofcarboxymethylstarch[J].CarbohydratePolymers,2004,58(2):109-113.[9] ,.-[J].,2005,(4):17-19.[10] ,,.[J].(),2005,26(4):32-34.[11] .[J].,1999,(4):40-42.[12] ,,,.[J].,2007,24(2):178-181.(864):[1] SaltonstallCW.Dialysisandultrafiltration:estimatingquantitativeseparations[J].AmericanBiotechnologyLaboratory,1992,10(1):10-18.[2] ,.[J].,2007,(6):1-2.[3] ,,,.[J].,2007,17(2):35-38.[4] ,,,.(Ⅰ).[J].,2006,64(22):41-46.[5] , .[J].,2005,(2):228-230.[6] ,,,.[J].,2007,(2):20-25.[7] ,,,.[J].,2006,32(11):25-26.[8] CheryanM.UltrafiltrationHandbook[M].Lancaster,PA:TechnomicPublishingCo,1986.[9] ,,,.()———[J].,1996,6(4):3-7.[10] ,,,.()———[J].,1997,7(1):3-6.[11] .[D].:,1999.[12] ,,,.[J].,2004,45(3):118-120.[13] , .[J].,2000,(2):24-26.[14] ,.[J].,2008,18(1):18-20.·907·9,:-
本文标题:电场强化陶瓷膜超滤牛血清蛋白
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