微乳/水热法制备勃姆石
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摘要
采用微乳液为模板,结合水热法制备勃姆石。通过使用TX-100作为表面活性剂、正丁醇作为助表面活性剂、环己烷作为油相、蒸馏水作为水相制备成油包水的微乳液。将硝酸铝以及γ-Al_2O_3加入到微乳液体系中,在180℃的水热环境下反应6 h,制备勃姆石。XRD结果表明制备的物质为勃姆石相,SEM结果表明制备的物质为不规则的块状。
In this paper,microemulsion is used as template and alumina is prepared by hydrothermal method.By using TX-100 as the surfactant,n-butanol as the cosurfactant,cyclohexane as the oil phase and distilled water as the aqueous phase the water-in-oil microemulsion in prepared.Aluminum nitrate andγ-Al_2O_3 are added to the microemulsion system,and the reaction is carried out at a temperature of 180 ℃for 6 hours to prepare a boehmite powder. The XRD results show that the prepared material is boehmite phase and the SEM results show that the prepared material is irregular.
In this paper,microemulsion is used as template and alumina is prepared by hydrothermal method.By using TX-100 as the surfactant,n-butanol as the cosurfactant,cyclohexane as the oil phase and distilled water as the aqueous phase the water-in-oil microemulsion in prepared.Aluminum nitrate andγ-Al_2O_3 are added to the microemulsion system,and the reaction is carried out at a temperature of 180 ℃for 6 hours to prepare a boehmite powder. The XRD results show that the prepared material is boehmite phase and the SEM results show that the prepared material is irregular.
引文
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[15]SHEN S C,CHEN Q,CHOW P S,et al.Steam-assisted solid wetgel synthesis of h igh-quality nano rods of boehmite and alumina[J].Phys Chem C,2007(111):700-707.
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[17]张彩霞,罗序燕,吴速英.微乳液法制备氧化铝纳米粉体的研究[J].无机盐工业,2006,38(10):26-28.
[18]GHOSH S,NASKAR M K.Synthesis of mesoporousγ-alumina nanorods using a double surfactant system by reverse microemulsion process[J].RSC Advances,2013(3):4207-4211.
[19]VITORINO N,KOVALEVSKY A V,ABRANTES J C C,et a1.Hydrothermal synthesis of boehmite in cellular alumina monoliths for catalytic and separation applications[J].Journal of the European Ceramic Society,2015(35):3119-3125.
[20]徐冰,王晶,于洪波,等.水热合成三维花状薄水铝石及其形成机理[J].无机盐工业,2010(42):11-13.
[2]温俊磊,江琦.多种形貌勃姆石纳米材料制备的研究进展[J].材料导报,2016(30):42-48.
[3]LEVIN I,BRANDON D.Metastable alumina polymorphs:crystal structures and transition sequences[J].Am Ceram Soc,1998,8:1995-2012.
[4]WEN H L,YEN F S.Growth characteristics of boehmite-derived ultrafine theta and alpha-alumina particles during phase transformation[J].Cryst Growth,2000,208:696-708.
[5]朱志斌,郭志军,刘英,等.氧化铝陶瓷的发展与应用[J].陶瓷,2003(1):5-8.
[6]童幸生,张静.氧化铝陶瓷摩擦磨损实验研究[J].江汉大学学报,2011(2):34-37.
[7]吴振东,叶建东.添加剂对氧化铝陶瓷的烧结和显微结构的影响[J].兵器材料科学与工程,2002,25(1):68-72.
[8]惠坤龙,张君涛,中志兵.介孔氧化铝的合成及应用进展[J].现代化工,2015(35):50-54.
[9]李慧,胡燚,苏国东,等.合成方法对γ-Al2O3催化剂乙醇脱水性能的影响[J].石油化工,2009(38):373-378.
[10]吴祖燊,李齐春,戴品中.异丙醇铝气相燃烧法制备纳米氧化铝的实验研究[J].精细专用化品,2011(19):26-29.
[11]ASGHARI A,MOHAMMADI B.Nano-alumina coated with sodium dodecyl sulfate and modified with 4-(2-Pyridylazo)resorcinol for extraction of heavy metals in different matrixes[J].Ind Eng Chem,2014,20:824-829.
[12]ZHANG L,CHENG B,SHI W S,et al.In-situ electrochemical synthesis of 1-dimensional alumina nanostructures[J].Mater.Chem,2005(15):4889-4893.
[13]张璐,姚素薇,张卫国,等.氧化铝纳米线的制备及其形成机理[J].物理化学学报,2005(21):1254-1258.
[14]曹凯,沈湘黔,王涛平,等.溶胶凝胶法制备纳米结构氧化铝陶瓷纤维[J].矿冶工程,2004(24):76-79.
[15]SHEN S C,CHEN Q,CHOW P S,et al.Steam-assisted solid wetgel synthesis of h igh-quality nano rods of boehmite and alumina[J].Phys Chem C,2007(111):700-707.
[16]PROOST J,Van BOXEL S.Large-scale synthesis of high purity,one-dimensionalα-Al2O3structures[J].Mater Chem,2004(14):3058-3062.
[17]张彩霞,罗序燕,吴速英.微乳液法制备氧化铝纳米粉体的研究[J].无机盐工业,2006,38(10):26-28.
[18]GHOSH S,NASKAR M K.Synthesis of mesoporousγ-alumina nanorods using a double surfactant system by reverse microemulsion process[J].RSC Advances,2013(3):4207-4211.
[19]VITORINO N,KOVALEVSKY A V,ABRANTES J C C,et a1.Hydrothermal synthesis of boehmite in cellular alumina monoliths for catalytic and separation applications[J].Journal of the European Ceramic Society,2015(35):3119-3125.
[20]徐冰,王晶,于洪波,等.水热合成三维花状薄水铝石及其形成机理[J].无机盐工业,2010(42):11-13.