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MgO nano-particles are prepared by ultrasonic cavitate, and-Fe2O3 nano-particles are prepared by chemical precipitation method, then MgO and-Fe2O3 are mixed in a beaker. After the ultrasonic dispersion for 2 h, MgO/-Fe2O3 admixture is calcined at 400℃ to synthesize MgFe2O4 nano-particles. TEM and XRD tests show that MgFe2O4 takes on a spinel structure and the particles sizes range from 20 to 30 nm. The theoretieal analysis indicates that the ultrasonic cavitate effect enhances the reaction activity of raw material, augmentes specific surface area and the contact area of reactant, which can promote reaction rate, reduce reaction temperature, and make possible the chemical reaction that is difficult to complete in common condition.
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Keywords:
- ultrasonic cavitate /
- solid state synthesizing /
- MgFe2O4 /
- nano-particles
[1] Suslick K S 1990 Science 247 1144
[2] Mason T J 1994 Chemical Industry 1 46
[3] Tamura S, Tsunekawa Y, Okumiya M, Hatakeyama M 2008 J.Mater. Proces. Technol. 206 322
[4] Wang X K, Yao Z Y, Wang J G, Guo W L, Li G Q 2008 Ultrason.Sonochem. 15 43
[5] Lu Y G, Wu X H 2011 Acta Phys. Sin. 60 046202 (in Chinese) [卢义刚, 吴雄慧 2011 60 046202]
[6] Azhari A, Sharifsh M, Golestanifard F, Saberi A 2010 Mater.Chem. Phys. 124 658
[7] Sivakumar N, Narayanasamy A, Greneche J M, Murugarajc R, LeeY S 2010 J. Alloys and Compounds 504 395
[8] Ma Q, Jiang J J, Bie S W, Du G, Feng Z K, He H H 2008 ActaPhys. Sin. 57 6577 (in Chinese) [马强, 江建军, 别少伟, 杜刚, 冯则坤, 何华辉 2008 57 6577]
[9] Chen Z Q, Li F, Li Q 2006 Chin. Phys. 15 1075
[10] Konishi M, Suda N, Kurihara S 1993 Biophys. J. 64 223
[11] Hoffmann M R, Hua I, Hochemer R 1996 Ultrason. Sonochem. 3163
[12] Suslick K S, Neis U 1989 Scientific American 43 80
[13] Bogdan N 2007 Ultrason. Sonochemi. 14 13
[14] Wang P H 2003 J. Hebei Institute of Technology 14 13 (in Chinese) [王萍辉 2003 河北理工学院学报 25 154]
[15] Edward B 1991 Science 253 1397
[16] Dalt S D, Takimi A S, Volkmer T M, Sousa V C, Bergmann C P2011 Powder Technology 210 103
[17] Hong X G, Du L C, Ye M P, Wong Y X 2004 Chin. Phys. 13 720
[18] Yuan Y H, Hou X, Gao H 2006 Acta Phys. Sin. 55 446 (in Chinese) [袁艳红, 侯洵, 高恒 2006 55 446]
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[1] Suslick K S 1990 Science 247 1144
[2] Mason T J 1994 Chemical Industry 1 46
[3] Tamura S, Tsunekawa Y, Okumiya M, Hatakeyama M 2008 J.Mater. Proces. Technol. 206 322
[4] Wang X K, Yao Z Y, Wang J G, Guo W L, Li G Q 2008 Ultrason.Sonochem. 15 43
[5] Lu Y G, Wu X H 2011 Acta Phys. Sin. 60 046202 (in Chinese) [卢义刚, 吴雄慧 2011 60 046202]
[6] Azhari A, Sharifsh M, Golestanifard F, Saberi A 2010 Mater.Chem. Phys. 124 658
[7] Sivakumar N, Narayanasamy A, Greneche J M, Murugarajc R, LeeY S 2010 J. Alloys and Compounds 504 395
[8] Ma Q, Jiang J J, Bie S W, Du G, Feng Z K, He H H 2008 ActaPhys. Sin. 57 6577 (in Chinese) [马强, 江建军, 别少伟, 杜刚, 冯则坤, 何华辉 2008 57 6577]
[9] Chen Z Q, Li F, Li Q 2006 Chin. Phys. 15 1075
[10] Konishi M, Suda N, Kurihara S 1993 Biophys. J. 64 223
[11] Hoffmann M R, Hua I, Hochemer R 1996 Ultrason. Sonochem. 3163
[12] Suslick K S, Neis U 1989 Scientific American 43 80
[13] Bogdan N 2007 Ultrason. Sonochemi. 14 13
[14] Wang P H 2003 J. Hebei Institute of Technology 14 13 (in Chinese) [王萍辉 2003 河北理工学院学报 25 154]
[15] Edward B 1991 Science 253 1397
[16] Dalt S D, Takimi A S, Volkmer T M, Sousa V C, Bergmann C P2011 Powder Technology 210 103
[17] Hong X G, Du L C, Ye M P, Wong Y X 2004 Chin. Phys. 13 720
[18] Yuan Y H, Hou X, Gao H 2006 Acta Phys. Sin. 55 446 (in Chinese) [袁艳红, 侯洵, 高恒 2006 55 446]
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