作 者:朱华跃,姚俊, 蒋茹, 等
影响因子:2.086
刊物名称:Ceramics International
出版年卷:2014, 40(2): 3769-3777
文章摘要:Cadmium sulfide/multi-walled carbonnanotubes/polymernanocomposite(CdS/MWCNTs/polymer)wasfabricatedviaafacileprecipitation
process bydepositingnanocrystallineCdSoncarbonnanotubes/crosslinkedchitosannanocompositeandcharacterizedbyX-raydiffraction
(XRD) andtransmissionelectronmicroscope(TEM).Undersimulatedsolarlightirradiation,acombinationofCdS/MWCNTs/polymerandH2O2
was foundtobehighlyefficient forphotocatalyticdecolorizationofasolubleazodye,methylorange(MO),evenatneutralpHvalues.99.9%of
MO solutionwassuccessfullydecolorizedafter90minundersimulatedsolarlightirradiationwith15mgL1 of initialMOconcentration,
1.0 mMofH2O2 concentration and0.70gL1 of photocatalystdosage.Experimentalresultsalsoindicatedthatthephotocatalyticdecolorization
of methylorangesolutionwasstronglyinfluenced byoperationalparametersandfollowedasimplified Langmuir–Hinshelwood (L–H) kinetic
model withhigh R2 values. WhentheCdS/MWCNTs/polymer–H2O2 system wasreusedforthe5thtime,thedecolorizationefficiency wasstill
about 88.0%after90minundersimulatedsolarlightirradiation.Asaresult,theCdS/MWCNTs/polymer–H2O2 will potentiallyprovidecheaper
and cleanermeansfortheeffectivetreatmentofdyeingeffluents sinceitincreasedsubstantiallytheefficiency ofdyedecolorizationandcould
take fulladvantageofeconomicalsolarlight.
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