Study on Properties and Structural Parameters of Microemulsion CTAB/Butanol/Cyclohexane/Salt Aqueous Solution
来源期刊：JOURNAL OF RARE EARTHS2005年第3期
论文作者：Chen Yongjie QIU Guanming Tian Yiguang Sun Yanbin XIAO Linjiu Fang Li
Key words：inorganic chemistry; CTAB; microemulsion; phase diagrams; structural parameters; rare earths;
Abstract: The phase diagrams of microemulsion CTAB/butanol/cyclohexane/aqueous solution of nitrate (or aqueous solution of ammonium salt) were determined and the structural parameters and ΔG*o→i were obtained by means of dilution method and theoretical calculation. The effect of different w/s and salt concentration on the stability and structural parameters of microemulsion were investigated. The result shows that with the increase of w/s, the area of microemulsion and Nd decrease, Rw, l and n increase; with the increase of salt concentration, the area of microemulsion, l and Nd decrease, ΔG*o→I, Rw and n increase. Theoretical basis of preparing size-controlled long afterglow luminescence materials and study of the relationship between fluorescence properties and particle size are provided.
Chen Yongjie1，QIU Guanming3，Tian Yiguang4，Sun Yanbin1，XIAO Linjiu1，Fang Li2
(1.School of Materials and Metallurgy, Northeastern University, Shenyang 110006, China;
2.School of Applied Chemistry, Shenyang Institute of Chemical Technology, Shenyang 110142, China;
3.School of Materials and Chemical Technology, Changchun University of Science and Technology, Changchun 130022, China;
4.Department of Chemistry, Wenzhou University, Wenzhou 325027, China;
5.College of Materials Science and Engineering, Jilin University, Changchun 130026, China)
Abstract:The phase diagrams of microemulsion CTAB/butanol/cyclohexane/aqueous solution of nitrate (or aqueous solution of ammonium salt) were determined and the structural parameters and ΔG*o→i were obtained by means of dilution method and theoretical calculation. The effect of different w/s and salt concentration on the stability and structural parameters of microemulsion were investigated. The result shows that with the increase of w/s, the area of microemulsion and Nd decrease, Rw, l and n increase; with the increase of salt concentration, the area of microemulsion, l and Nd decrease, ΔG*o→I, Rw and n increase. Theoretical basis of preparing size-controlled long afterglow luminescence materials and study of the relationship between fluorescence properties and particle size are provided.
Key words:inorganic chemistry; CTAB; microemulsion; phase diagrams; structural parameters; rare earths;
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