銻摻雜二氧化鈦的制備及其光催化性能研究.pdf

1、成都理工大學(xué)碩士學(xué)位論文銻摻雜二氧化鈦的制備及其光催化性能研究姓名：李思平申請學(xué)位級別：碩士專業(yè)：材料學(xué)指導(dǎo)教師：鄧昭平20060501PreparationofSb—dopedTi02andResearchofItsPhoto—catalyticPropertyAbstractAsaneco—material，Ti02playsmoreandmoreimportantroleintheenvironmentcontaminationd

2、isposalforthecharacterizationofnontoxicityhighphoto—catalyticabilitystabilizationofphysicalandchemicalpropertycheap，eta1Butthephoto—catalyticabilityofTi02shouldbeexcitatedbyultravioletradiation，itcan’tmakeuseofthevisible

3、lightpartofthesolarenergydirectlyandcomesforthinconvenienceinappliedprocessandimprovesthecostMetalliciondopingisoneofthemosteffectivemethodstesolvethedefect，itCanchangethestructureofenergylevelofTi02toabsorbthevisiblelig

4、htInthisthesis，wepreparedSb—dopingTi02powderuseprecursortitanyloxalatedecompositionmethodandevaluatedthephoto—catalyticdegradationabilityundervisiblelighttookorganicpesticidemethamidophosasanexampleAndcharacterizedthepho

5、to—catalystanditsphoto—catalyticabilitybyX—raydiffraction(XRD)，Scanningelectronmicroscopy(SEM)，Transmissionelectronmicroscopy(TEM)，X—rayphotoelectronspectroscopy(XPS)，UVVisiblespectroscopy(UVVis)Experimentresultsshowthat

6、thepreparedTi02crystalsaremixedwithrutilephaseTi02andanatasephaseTi02，theshapeoftheparticleisabnormal，themeanpowderdiameterisaboutlOOnmandtheparticleisreunitedXPSresultsshowthattheantimonyisexistedbytheformofSb5，thebindi

7、ngenergyofTi4increasebytheinfluenceofSb5intotheTiO，crystallatticeforSb5caninfluencethechemicalcircumstancearoundtheTi4ThedopingionSb5CanbafflethetransitionfromanatasetoruffleandimprovethetransitiontemperatureofA—RTheinor

8、ganicphosphorousrecycleratioofmethamidophosachieves964％whenmethamidophossolutiondecomposedundervisiblelightbythephoto—catalystwhichdopedwithO2％antimonyandkeptwarmO5haftercalcinedat900。CThephoto—catalyticdegradationabilit