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各种低价氧化钛的无标样X射线定量相分析.docx

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各种低价氧化钛的无标样X射线定量相分析 Title:QuantitativeX-rayPhaseAnalysisofVariousLow-costTitaniumOxideswithoutStandardSamples Abstract: ThegoalofthisstudywastodevelopaquantitativeX-rayphaseanalysismethodologyforlow-costtitaniumoxideswithouttheneedforstandardsamples.X-raydiffraction(XRD)isawidelyusedtechniqueforphaseidentificationandquantification.However,itreliesontheavailabilityofstandardsamples,whichmaybecostlyordifficulttoobtainforsomematerials.Inthisstudy,weproposeanovelapproachtoovercomethislimitationbyutilizingacombinationofempiricalcalibrationandmathematicalmodeling. Introduction: Titaniumdioxide(TiO2)isaversatilematerialwithremarkableproperties,includinghighthermalstability,excellentphotocatalyticactivity,andgoodchemicalstability.Itiswidelyusedinvariousapplications,suchassolarcells,sensors,andwaterpurification.Thepriceofcommerciallyavailabletitaniumdioxidecanvarysignificantly,makinglow-costalternativeshighlydesirable.However,thecharacterizationoftheselow-costtitaniumoxidescanbechallenging,especiallywhenstandardsamplesarenotreadilyavailable. MaterialsandMethods: Inthisstudy,severallow-costtitaniumoxidesweresynthesizedusingdifferentmethods,includingsol-gelandhydrothermalsynthesis.ThecompositionandcrystalstructureofthesynthesizedoxideswerecharacterizedusingXRD.Todevelopaquantitativeanalysismethodwithoutstandardsamples,aseriesofmixtureswithknownproportionsofthesynthesizedoxideswereprepared.XRDmeasurementswereperformedonthesemixtures,andtheresultingdiffractionpatternswereusedtodevelopanempiricalcalibrationcurve. Results: TheempiricalcalibrationcurveshowedastrongcorrelationbetweentheknownoxideproportionsandtheX-raydiffractionpeakintensities.Thelinearrelationshipbetweenthepeakintensitiesandtheoxidecompositionallowedforthecalculationofphaseproportionsinagivensamplewithouttheneedforstandardsamples.Theaccuracyofthequantitativeanalysiswasevaluatedbycomparingthecalculatedphaseproportionswiththoseobtainedusingstandardsamples.Theresultsshowedgoodagreement,confirmingthereliabilityofthepro