伊紅Y敏化改性TiO-,2-光催化劑制備及可見光制氫性能.pdf

1、南昌大學(xué)碩士學(xué)位論文伊紅Y敏化改性TiO光催化劑制備及可見光制氫性能姓名：劉雄鷹申請學(xué)位級別：碩士專業(yè)：應(yīng)用化學(xué)指導(dǎo)教師：彭紹琴20081201AbstractInthisthesisthepreparationandmodificationofS(orSi)dopedTi02visiblelightphotocatalystsensitizedbyEosinYaswellasitsperformanceofphotocatalytic

2、hydrogenevolutionwasresearchedTheresearchworksiscomposedoftwoparts：InthefirstpartpreparationofSdopedTi02sensitizedbyEosinYandperformanceofphotocatalytichydrogenevolutionundervisiblelightirradiationWasstudiedS—dopedTi02ca

3、lcinedatdifferenttemperatureswerepreparedbysolgelmethodPtWaSloadedonS—dopedTi02photocatalystbyphotodepositionmethodEosinYwasabsorbedonPtTi02surfaceviaimpregnationmethodtoprepareaseriesofdye—sensitizationEosinYPt—STi02vis

4、iblelightphotocatalystsTheactivityofthepreparedphotocatalystundervisiblelightirradiationWasevaluatedusingphotocatalytichydrogenevolutionasaprobereactionItisfoundthattheactivityofEosinYPt—STi02calcinedat600℃isthebestSampl

5、eswerecharacterizedbyXRD，BETFTIRandUVVisDRSItisfoundthatthesensitizationofEosinYextendsthevisiblelightresponserangeofSdopedTi02EosinYmakesS—dopedTi02haveaverystrongabsorptionfrom400nmto600nmWithcalcinationtemperaturedecr

6、easing，thespecificsurfaceareaofS—dopedTi02increases，andthehydroxylamountonthesurfaceofTi02alsoincreases，SOthatwiththetemperaturedecreasingtheadsorbedamountofEosinYalsoincreasesThereforethevisiblelightphotocatalyticactivi

7、tyofEosinYPt—STi02enhancesaccordinglyInthesencondpartpreparationofSi—dopedTi02sensitizedbyEosinYandperformanceofphotocatalytichydrogenevolutionundervisiblelightirradiationwasstudiedSi—dopedTi02calcinedatdifferenttemperat

8、ureswerepreparedbysolgelmethodPtwasloadedontheTi02、SiTi02photocatalystsbyphotodepositionmethodEosinYwasabsorbedonPt—Ti02andPt—SiTi02surfacesviaimpregnationmethodtopreparetwoseriesofdyesensitizationphotocatalystsEosinyPtT