纳米金红石型二氧化钛粉末的制备及表征

(,410083),-,TEM,XRD,BET,ICP-AES,,,80nm,99.95%,-:(1976),,.TiO2,,[1]3:TiO2,,[2],TiO2:-[3][4][5][68],-;,-,,TiO2,,11.1:TiOSO4(1):(DBS)::1TiOSO4TiO2/gL21Ti3+/gL21Fe/TiO2F142.01.170.43.3112,TiOSO4(90g/L),pH3.5410,,HClTiO2+Ti4+,TiO2,,TiO255g/L,DBS,10010min170g/L,803h,60pH210015SO2-4Fe2+1009002h,TiO2,,:TiO2++2OH2=TiO(OH)2(1)(NH2)2CO+3H2O=CO2+2NH3H2O(2)8820041TiO2++2NH3H2O=TiO(OH)2+2NH+4(3)TiO(OH)2=TiO2(s)+H2O(4)113Al;Ti3+;KMnO4;-(ICP-AES),XD-3AX,HITACHIH-800EM(TEM),(BET)22111TiO2X(a)500,2h(b)750,2h(c)900,2h(d)900,3h1TiO2XRD,5002h,,(225.2),(227.4)2TiO2,,900,cd,,,,2TiO2//hw()/%50020750240900210090031002.2TEM,2,,80nm(BET)18m2/g86nm,TEM2TiO2TEM2.3ICP-AES,,,33TiO2%Mn0.0018Mg0.001Cr0.001Si0.00048Cu0.0001Co0.001Al0.0034V0.0022Ni0.001Ca0.01Pb0.00082Sn0.0078Fe0.013Zn0.001Sb0.0088TiO299.953,99.95%98200412.444TiO2//nm/m2g-1/%900801899.953,-,:TiO2,,80nm,18m2/g,99.95%,,,1,..,1997(5):572..,1995(5):36383,,,.TiO2.(),1996,35(2):32364,,,..,1999,30(5):4954975,,,.TiO2.,1999,14:8538566XiongY,PrastinisSE.Gasphaseproductionofparticlesinreactiveturbulentflows.JAerosolSci,1991,22(5):6376557,,,.TiO2.,1994,25(2):1511558KamalAM,XiongY,SotirisEP.Vaporsynthesisoftitaniapowderbytitaniumtetrachlorideoxidation.AICHEJournal,1991,37(10):15611570PreparationofNanometerRutileTiO2PowderGaoGuilanDuanXuechen(Dept.ofMaterialsScienceandEngineering,CentralSouthUniversity,Changsha410083)AbstractThenanometerrutileTiO2powderwaspreparedbytheseed-homogeneousprecipitationmethod,usingindustrialTiOSO4solutionasrawmaterial.ThebehaviorsofTiO2powderwerecharacterizedbyXRD,TEM,BETandICP-AESmethods.TheexperimentalresultsshowthattheTiO2particlespreparedarerutile,sphericalandnanometer.Theaverageparticlediameteris80nm.ThepurityofTiO2powderis99.95%.Thenanometertitaniumdioxidepowderpreparedbythemetionedmethodcanmeettheneedsofmarkets.KeywordsnanometerrutileTiO2powderseed-homogeneousprecipitation0920041