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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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FabricationandCharacterizationofTailoredTiO2andWO3/MWCNTCompositesforMethyleneBlueDecomposition
DOI: 10.1016/S1872-2067(10)60208-2, PP. 926-932
Keywords: tungstentrioxide,titaniumdioxide,multi-walledcarbonnanotube,photocatalyticactivity,methyleneblue
Abstract:
？Asol-gelmethodwasusedtoprepareWO3/MWCNT-TiO2composites.Theirphotocatalyticactivitieswereevaluatedbythedegradationofmethyleneblue(MB)solutionunderUVlight.ThecatalystswerecharacterizedbyX-raydiffraction,specificsurfaceareameasurement,energy-dispersiveX-rayanalysis,transmissionandscanningelectronmicroscopy.AqueousMBsolutionsof100mlwerephotodegradedbyasmallamountoftheWO3/MWCNT-TiO2compositeunderUVlightirradiation.ThephotocatalyticdatashowedthattheWO3/MWCNT-TiO2compositeachievedahighrateofMBphotodegradation.ThiswasattributedtotheuseofMWCNTwhichcanabsorbUVlighttocreatephoto-inducedelectrons,strongadsorptionofdyemoleculesonthephotocatalyst,andreducedrecombinationrateofelectron-holesintheWO3/MWCNT-TiO2compositeduetotheintroductionoftheWO3semiconductor.
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