摘要
Theadsorptiveremovalofarsenicbysynthetically-preparednanoFe-Mnbinaryoxides(FM)wasinvestigated.AnovelmethodusingpotassiumpermanganateandferricchlorideasrawmaterialswasusedtosynthesiseFM.ThemolarratioofFeandMninthesyntheticFe-Mnbinaryoxideswas4:3.TheFM-1andFM-2(preparedatdifferentactivationtemperatures)havinghighspecificsurfaceareas(358.87and128.58m2/g,respectively)wereamorphousandofnanoparticletypes.TheamountofarsenicadsorbedonFM-1washigherthanthatadsorbedonFM-2particles.AfteradsorptionbyFM-1,residualarsenicconcentrationdecreasedtolessthan10μg/L.Theadsorptionkineticsdatawereanalyzedusingdifferentkineticmodelsincludingpseudofirst-ordermodel,pseudosecond-ordermodel,Elovichmodelandintraparticlediffusionmodel.Pseudosecond-orderkineticmodelwasthemostappropriatemodeltodescribetheadsorptionkinetics.TheadsorptionpercentageofAs(Ⅲ)increasedinthepHrangeof2–3whileitdecreasedwiththeincreaseofpH(3
出版日期
2016年04月14日(中国期刊网平台首次上网日期,不代表论文的发表时间)