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ZetaPlus Zeta电位测量应用案例-15

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【导读】文献名:CompetitiveadsorptionofPb2+,Cu2+,andCd2+ionsonmicroporoustitanosilicateETS-10作者:LuLv,M...

文献名:CompetitiveadsorptionofPb2+,Cu2+,andCd2+ionsonmicroporoustitanosilicateETS-10作者:LuLv,MeiPengHor,FabingSu,X.S.ZhaoDepartmentofChemicalandBiomolecularEngineering,NationalUniversityofSingapore,10KentRidgeCrescent,119260Singapore摘要:Inthepresentstudy,thecompetitiveadsorptioncharacteristicsofbinaryandternaryheavymetalionsPb2+,Cu2+,andCd2+onmicroporoustitanosilicateETS-10wereinvestigatedinbatchsystems.PuremicroporoustitanosilicateETS-10wassynthesizedwithP25astheTisourceandcharacterizedbythetechniquesofX-raydiffraction(XRD),fieldemission-scanningelectronmicroscope(FESEM),nitrogenadsorption,andζ-potential.EquilibriumandkineticadsorptiondatashowedthatETS-10displaysahighselectivitytowardonemetalinatwo-componentorathree-componentsystemwithanaffinityorderofPb2+>Cd2+>Cu2+.TheequilibriumbehaviorsofheavymetalsspecieswithstrongeraffinitytowardETS-10canbedescribedbytheLangmuirequationwhiletheadsorptionkineticsofthemetalscanbewellfittedtoapseudo-second-order(PSO)model.关键词:MicroporoustitanosilicateETS-10;Heavymetalions;Competitiveadsorption;Selectivity


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2004-11-02 09:23:03
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