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催化学报 2010
紫外光照射下Fe-碳纳米管/TiO2复合材料降解罗丹明B, PP. 751-758 Keywords: iron,carbonnanotube,titania,rhodamineB,photocatalyticactivity,photo-Fenton Abstract: ？ThecompositescomprisingFe-carbonnanotubes(CNTs)onTiO2werepreparedbyamodifiedsol-gelmethodandcharacterizedbynitrogenadsorption,scanningelectronmicroscopy,transmissionelectronmicroscopy,X-raydiffraction,andenergydispersiveX-rayanalysis.ThephotocatalyticdecompositionofrhodamineB(Rh.B)underUVirradiationandairaerationcatalyzedbythecompositeswasmeasured.ThephotocatalyticactivityofTiO2nanoparticleswassignificantlyenhancedbythelargeCNTnetworkthatfacilitatedelectrontransferbetweenadsorbedRh.Bmoleculesandthecatalystsubstrateandthesimultaneousoccurrenceofthephoto-FentonreactioninthepresenceofFeparticles.Amarkedaccelerationofthedecompositionratewasobservedwithaerationbyflowingairaerationduetotheformationofthecirculatoryphoto-Fentonsystem.Chemicaloxygendemandofpiggerywastewasmeasuredatregularintervalstoevaluatethemineralizationofwastewater.
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