共轭多孔有机聚合物的构筑及其光催化C-H键活化性能研究.pdf

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ConstructionofConjugatedPorousOrganicPolymersandStudy

onTheirPhotocatalyticC-HBondActivationPerformance

Abstract

Conjugatedporousorganicpolymers(POPs)haveattractedwidespreadattentiondueto

theirmulti-porestructureandhighlyconjugatedstructurewithintheframework.

Photocatalytictechnologyhasalwaysbeenagreen,environmentallyfriendly,andconvenient

synthesistechnology,andnewphotocatalyticsynthesisstrategiesareconstantlybeing

reported.However,traditionalhomogeneousphotocatalystshavedrawbackssuchashighcost,

poorrecyclability,andpoorstability.Butconjugatedporousorganicpolymersconnectedby

covalentbondscanmakeupfortheseshortcomings.StartingfromPOPs,thisarticle

constructsaseriesofcovalentorganicframeworks(COFs),covalenttriazineframeworks

(CTFs),andconjugatedmicroporouspolymers(CMPs),andappliesthemtophotocatalytic

organicsynthesisofsmallmolecules.Themainresearchresultsandconclusionsareas

follows:

(1)Inthisstudy,threeethylenechainCOFsweresynthesizedbysolvothermalmethod,

withmonomerscontainingthreehalogenatoms(F,Cl,Br).Thematerialcharacterization

confirmedthatthethreehalogenatomsweresuccessfullyloadedontothecorresponding

COFs.Thecharacterizationresultsalsoshowedsignificantdifferencesinthephysical

structureandchemicalpropertiesoftheseCOFs,indicatingthatdifferenthalogenatomscan

regulatetheframeworkstructureandchemicalbandgapofCOFs,altertheirchargetransfer

andtransportabilities,andthusexhibitdifferentphotocatalyticeffects.Infact,thisstudyused

threeCOFsmaterialsasheter

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