金红石型纳米二氧化钛的制备

295200710()JofChinaThreeGorgesUniv.(NaturalSciences)Vol.29No.5Oct.2007:2007-05-17:(1957-),,,.李昕1杨昌英1张爽爽2(1.三峡大学化学与生命科学学院,湖北宜昌443002;2.三峡电力职业学院,湖北宜昌443002):采用CO(NH2)2控制TiCl4的水解过程,在常温常压下制备出了纳米TiO2.经XRD表征所制产品晶相为纯金红石相,晶粒平均尺寸小于10nm,并在此基础上探索了最佳制备条件.:纳米TiO2;金红石型;X-射线衍射:O614.41+1:A:1672-948X(2007)05-0446-03PreparationActivityofRutileNanosizedTitaniaLiXin1YangChangying1ZhangShuangshuang2(1.CollegeofChemistry&LifeScience,ChinaThreeGorgesUniv.,Yichang443002,China;2ThreeGor-gesElectricPowerVocationalCollege,Yichang443002,China)AbstractByControllingthehydrolysisoftitaniumtetrachloridewithaddingCO(NH2)2,nanosizedtitaniawaspreparedunderroomtempratureandcommonpressure.TheproductswerecharacterizedbyXRD.XRDresultsshowthatthecrystallinephaseispurerutile;anditsprimaryparticlesizeislessthan10nm;alsotheoptimumconditionsareresearched.Keywordsnanosizedtitania;rutile;X-raydiffractionTiO22080,.:.TiO2.,[1-7].,TiO2,,.[8]TiCl4;TIOXIDETiCl4TiO2;[9-10]TiO2,,.,TiO2.TiCl4,CO(NH2)2,10nm,.11.1,C.P.,;,A.R.,;(),,;,A.R.,();,C.P.,;,C.P.,();2%4-8%[11],,;pH10-[12],.1.2500mL300mL,TiCl4,,(20mL+,1B2).50mgTiO2,,,,10min,,,,Cl-,105e8h.TiCl4(2%5%10%15%,1234)(20e30e40e55e)..1.3XRD,X,ScherrerL=KK/BcosH(1),L;KX;K,0.89;H;BXR.RAX-10X(CuKA,40kV).255e,TiCl44XRD.1;2;3;4.1255e34XRD.X,(1)8.2nm10.1nm.3,TiCl410%.155e3XRD255e4XRDTiCl410%,4XRD.20e;30e40e55e3,(1)10nm,:5.7nm6.7nm8.2nm.341XRD.,30e.310nm.TiCl410%,30e.:[1]LiYuanzhi,YeGang,ZhouJunting,etal.Synthesisof447295NanostructuredTitaniawithDifferentPolymorph[J].:,2004,26(6):559-562.[2],,.[J].,2000,20(7):21-24.[3]LangletM,KinA.SolgelPreparationofPhotocatalyticTiO2FilmsonPolymerSubstrates[J].JSolgelSciTechn,2002,25:223.[4]DjaouedY,BadilescuS,AshritPV.LowTemperatureSolgelPreparationofNanocrystallineTiO2thinFilms[J].JSolgelSciTechn,2002,24:247.[5],,.[J].,2000,15(3):557-560.[6],,,.[J].,1997,18(7):1119-1226.[7],,.Pt/TiO2[J].,1991,8(6):28-32.[8],,.TiO2[J].,1999,25(2):151-155.[9],,.TiO2[J].,1997,12(1):110-114.[10],,,.[J].,1998,13(2):129-137.[11],,.[M].:,1995:116-117.[12],,.[M].2.:,1987:264.[周文凯](上接434页),()20,196lx,238lx.2:,,40W,80W,.130,103lx.7.,..,.,,,,2028W,196lx,,,(150~300lx).,;.,,.:[1].[M].:,1997:159-160.[2]GB50034-2004[S].[3].[M].:,2000:215-219.[4].[M].:,1998:257-258.[5].[M].:,1985:53-54.[张莉]448()200710