摘要
AbstractInthisstudy,mesoporoussilica/ironoxidenanocomposite（MCM-Fe203）wassynthesizedviahydrother-maltechnique.ThechemicalsynthesisofMCM-Fe203nanocompositewasachievedat18h.Theeffectofconcen-trationoftetraethylorthosilicate（TEOS）onnanocompositespropertieswasstudiedduringsynthesisprocess.Forthispur-pose,0.5,1.5,2.5,3.5,and4.5mltetraethylorthosilicate（TEOS）wereselected,respectively.ThetexturalpropertiesandmicrostructureofthenanocompositeswerecharacterizedbyX-raydiffraction（XRD）,Fouriertransforminfraredspec-troscopy（UF1R）,fieldemissionscanningelectronmicroscopy（FESEM）,N2adsorption-desorption,andvibratingsamplemagnetometer（VSM）analysis.Resultsshowthatthenanocom-positewithtetraethylorthosilicate（TEOS）/cetyltrimethylam-moniumbromide（CTAB）ratioof5exhibitslargesurfaceareas（461.19mZ.gJ）.Furthermore,thisnanocompositeshowssuperparamagneticbehaviorunderexternalmagneticfieldcomparedtoothersamples.Moreover,resultsofremovalofmetalionsindicatethatadsorptionofNi（II）,Cd（II）,Cr（III）,Zn（II）,andPb（II）ionsonthesurfaceofadsorbent（nanocom-posite）increaseswiththeincreaseinsolutionpH,contacttime,andadsorbentdosage.Furthermore,themaximumremovalratesofheavymetalsionsreach53.0%,79.0%,61.0%,89.0%,and99.5%atpHof5,timeof50min,andtheweightofadsorbentof0.16with2.5mlTEOS,respectively.
出版日期
2017年12月22日（中国期刊网平台首次上网日期，不代表论文的发表时间）
