无有机模板剂的二氧化硅纳米纤维在铝膜腔内的合成
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摘要
【目的】在无有机模板剂条件下,采用溶胶凝胶法于阳极氧化铝膜腔体内进行二氧化硅纳米纤维材料的合成研究。【方法】合成采用压力诱导的方法,考察了水解时间、化学剂量比对材料形貌的影响。实验制得的复合功能铝膜用于Fe~(2+)的分离,同时考察了溶液的pH值、流速等因素对分离的影响。【结果】纳米纤维仅在铝膜腔体内生长,而在铝膜表面没有残留,制得的纳米纤维长60μm,直径约为100nm。【结论】制得的纳米纤维高度有序,复合功能铝膜能成功应用于金属离子的吸附分离领域。
[Purposes]One-dimensional nano-scaled silica was synthesized inside anodic alumina membrane pores under non-surfactant conditions.[Methods]A pressure-induced infiltration approach is used during synthesis process and it has advantages that silica hardly forms on the surface of AAM.The length of the nano-fiber is about 60μm with the diameters being about 100 nm.The effect of the ratio of chemical reagent and the hydrolysis time on the morphography was also investigated.[Findings]The resulting hybrid membrane could be used for separation of metal ions Fe(II)and effect on pH and the flow speed of aqueous solution was also detected.
[Purposes]One-dimensional nano-scaled silica was synthesized inside anodic alumina membrane pores under non-surfactant conditions.[Methods]A pressure-induced infiltration approach is used during synthesis process and it has advantages that silica hardly forms on the surface of AAM.The length of the nano-fiber is about 60μm with the diameters being about 100 nm.The effect of the ratio of chemical reagent and the hydrolysis time on the morphography was also investigated.[Findings]The resulting hybrid membrane could be used for separation of metal ions Fe(II)and effect on pH and the flow speed of aqueous solution was also detected.
引文
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[16]付文升,李祖林,周小敏,等.铝膜腔体内高度有序的介孔硅SBA-16的合成[J].高等化学报,2009,30:2119-2122.FU W S,LI Z L,ZHOU X M,et al.Synthesis of high ordered mesoporous silica SBA-16within columnar alumina pores[J].Chemical Jounal of chinese Universities,2009,30(11):2119-2122.
[2]KELLER F,HUNTER M S,ROBINSON D L.Structural features of oxide coatings on aluminum[J].Journal of Electrochemical Soceity,1953,100:411-419.
[3]THOMPSON G E.Porous anodic alumina:fabrication,characterization and applications[J].Thin Solid Films,1997,297(1):192-201.
[4]DESPIC'A,PARKHUTIK V P.Electrochemistry of aluminum in aqueous solutions and physics of its anodic oxide[M]//Bokris J O,White R E,Conway B E.Modern Asepects of Electrochemistry No.20.U.S.A.:Springer US,1989:401-503.
[5]MASUDA H,HASEGWA F,ONO S.Self-ordering of cell arrangement of anodic porous alumina formed in sulfuric acid solution[J].Journal of Electrochemical Soceity,1997,144:L127-L129.
[6]LI F,ZHANG L,METZGER R M.On the growth of highly ordered pores in anodized aluminum oxide[J].Chemistry of Materials,1998,10(9):2470-2480.
[7]MASUDA H,FUKUDA K.Ordered metal Nanohole arrays made by a two-step replication of honeycomb structures of anodic alumina[J].Science,1995,268(5216):1466-1468.
[8]DAS B,MCGINNIS S P.Novel template-based semiconductor nanostructures and their application[J].Applied Physics A,2000,71(6):681-688.
[9]HUCZKO A.Template-based synthesis of nanomaterials[J].Applied Physics A:Meterials Science&Processing,2000,70(4):365-376.
[10]BAO J C,TIE C Y,XU Z,et al.Template synthesis of an array of nickel nanotubules and its magnetic behavior[J].Advanced Materials,2001,13(21):1631-1633.
[11]WANG Z,CHEN M,LI H L.Preparation and characterization of uniform polyaniline nano-fibrils using the anodic aluminum oxide template[J].Materials Science and Engineering:A,2002,328(1):33-38.
[12]YANAGISHITA T,NISHIO K,MASUDA H.Fabrication of metal nanohole arrays with high aspect ratios using two-step replication of anodic porous alumina[J].Advanced Materials,2005,17:2241-2243.
[13]YANG Z L,NIU Z W,CAO X Y,et al.Template synthesis of uniform 1Dmesostructured silica materials and their arrays in anodic alumina membranes[J].Angewandte Chemie International Editon,2003,42(35):4201-4203.
[14]YAMAGUCHI A,UEJO F,YODA T,et al.Self-assembly of a silica-surfactant nanocomposte in a porous alumina membrane[J].Nature Materials,2004,3(5)337-341.
[15]YAMAGUCHI A,KANEDA H,FU W S,et al.Structural control of surfactant-templated mesoporous silica formed inside columnar alumina pores[J].Advanced Meterials,2008,20(5):1034-1037.
[16]付文升,李祖林,周小敏,等.铝膜腔体内高度有序的介孔硅SBA-16的合成[J].高等化学报,2009,30:2119-2122.FU W S,LI Z L,ZHOU X M,et al.Synthesis of high ordered mesoporous silica SBA-16within columnar alumina pores[J].Chemical Jounal of chinese Universities,2009,30(11):2119-2122.