nipmcmc2fmcs双极膜技术在成对电解制备糠醇、糠酸中的应用

《nipmcmc2fmcs双极膜技术在成对电解制备糠醇、糠酸中的应用》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、IllI．‘-____～福建师范大学硕士学位论文II塑翌。IIIlll1111／111111111111111111111／11,1111111111●■●■_●●●■●■■；■■■■■t

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5、sociation,phosphorylationcarboxymethylcellulose(CMC)membranewassynthesizedbyphosphoruspentaoxide，triethylphosphateandphosphoricacid，thenmodifiedbyFd十asalinkingreagent；chitosan(CS)wasmodifiedbyglutaraldehyde，thenblendwithPVA．TheP．mCMC／mCSbipolarmembranewascharacterizedbyFTIR，ACimpedance，I—Vcur

6、vesandionexchangecapacity．TheresultsofIRandcontactangleanalysisshowedthatthehydrophiliepropertyofCMCisimprovedaftermodification．BothofthemembraneimpedanceandtheworkingvoltageoftheP—mCMC／mCSbipolarmembranearesmall．Ni．P—mCMC／mCSbipolarmembraneWaspreparedbycarboxymethylcellulose(CMC)andchitosan(

7、CS)，whichweremodifiedbyphosphorylatedagentandglutaraldehyde(GA)，respectively．TheionexchangecapacityofmCMC，mCSmembraneandtheACimpedencewereinvestigated．NickelWasplateddowntothesurfaceofmCMCcationmembranetorealizezeropolardistanceelectrolysisinthecathode．矿generatedbyelectro-splittingwateratthei

8、nterfaceoftheBPMmovesintothecathodicchamberintimefrommCMClayertosupplement矿consumedintheelectro-reducationprocessoffurfuralforgeneratingfurfuralalcohol；TheexperimentalresultsshowedthatfurfuralalcoholWaspreparedbyelectro．reductionoffurfuralinthecathoderoom．Incomparisonwiththetraditionalmethod，

9、theelectro-reductiontechnologysavestheCu-Crcatalyzerandeliminatesthechromiumpollmiontotheenvironment．Ni．P．mCMC／mCSbipolarmembranewaspreparedbycarboxymethylcellulose(CMC)modifiedbyphosphorylatedagentasacationexchangelayerandchitosan(CS)modifiedbyglutaraldehyde(GA)asallanionexchangelayer．Theele

10、ctrolysiscellwasconstitutedbyNi．P．mCMC／mCSBPMasaseptumforelectro·generatingfurfuralalcohol(inthecathoderoom)andfuroicacid(intheanoderoom)．Theexperimentresultsshowthat旷generatedbytheBPMmovesintothecathoderoomintimefromtheinterfacelayeroftheNi．