Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
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Effect of Additives on Preparation of Silver Chloride Nanoparticles using AOT-Based W/O Microemulsions

AOT W/O 마이크로에멀젼을 이용한 AgCl 나노입자 제조에서 첨가제의 영향

  • Jung, KilYong (Department of Chemical and Biochemical Engineering, Dongguk Univ.) ;
  • Lim, JongChoo (Department of Chemical and Biochemical Engineering, Dongguk Univ.)
  • 정길용 (동국대학교 공과대학 생명화학공학과) ;
  • 임종주 (동국대학교 공과대학 생명화학공학과)
  • Received : 2007.09.27
  • Accepted : 2007.11.01
  • Published : 2008.04.30
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Abstract

Effect of additives such as NP series nonionic surfactant and cosurfactant on AgCl nanoparticles was investigated where nanoparticles were prepared using two different types of water-in-oil (W/O) microemulsions containing silver nitrate and sodium chloride, respectively. Phase behavior experiments showed that the region of one phase W/O microemulsion was found to be broadened with an increase in the ethylene oxide length of a nonionic surfactant mainly due to an increase in hydrophilic nature of a surfactant. Photomicrographs obtained by transmission electron microscopy indicated that an increase in ethylene oxide length of a nonionic surfactant results in both increases in particle size and size distribution. Phase behavior experiments for the systems containing AOT surfactant, isooctane and aqueous solution of an inorganic salt showed that addition of a cosurfactant caused a shrinkage in phase region of one phase W/O microemulsion, especially water contents contained in W/O microemulsion with an increase in the chain length or the concentration of a cosurfactant used. Photomicrographs obtained by transmission electron microscopy indicated that characteristics of AgCl nanoparticles produced were dependent both on the radius of spontaneous curvature and film rigidity of a microemulsion.

본 연구에서는 비이온 계면활성제, 보조계면활성제 등의 첨가제가 AOT 계면활성제 시스템의 water-in-oil(W/O) 마이크로에멀젼을 이용한 AgCl 나노입자 제조에 미치는 영향에 관하여 살펴보았다. AOT 계면활성제, isooctane, 무기염 수용액으로 이루어진 삼성분 시스템에 NP 계열 비이온 계면활성제를 첨가한 결과, 단일상으로 존재하는 W/O 마이크로에멀젼 영역은 증가하였으며, 일반적으로 첨가한 비이온 계면활성제의 친수성이 증가할수록 단일상의 영역은 증가하였다. 또한 첨가한 비이온 계면활성제는 마이셀의 계면을 보다 유연하게 함으로써 생성된 입자의 크기는 증가하고 분포도는 넓어졌다. 한편 보조계면활성제로 알코올을 첨가하면서 상평형 실험을 수행한 결과, 알코올의 사슬 길이가 증가하거나 첨가량이 증가할수록 단일상으로 존재하는 W/O 마이크로에멀젼이 보다 좁은 영역에서 형성되었다. 상평형 실험결과에 의하여 결정된 단일상의 W/O 마이크로에멀젼 영역 내에 해당하는 조건에서 보조계면활성제의 사슬 길이와 첨가량을 변화시키면서 AgCl 나노입자 제조실험을 수행한 결과, 생성된 AgCl 입자의 특성은 보조계면활성제 첨가에 따른 마이크로에멀젼의 radius of spontaneous curvature와 필름 rigidity의 변화에 의하여 결정됨을 알 수 있었다.

Keywords

References

  1. Aldinger, F. and Kalic, H. J., "The Importance of Chemistry in the Development of High-Performance Ceramics," Chem. Int. Ed. Eng., 26(5), 371-381(1987) https://doi.org/10.1002/anie.198703713
  2. Seo, W. S., Kim, T. W., Sung, J. S. and Song, K. C., "Synthesis of Silver Nanoparticles by Chemical Reduction Method," Korean Chem. Eng. Res., 42(1), 78-83(2004)
  3. Suh, D. J., Park, O. O., Jung, H. T. and Kwon, M. H., "Optical Properties and Characteristics of the CdSe Nanoparticles Synthesized at Room Temperature," Korean J. Chem. Eng., 19(3), 529-533(2002) https://doi.org/10.1007/BF02697168
  4. Jung, K. Y., Kim, M. C., Park,, S. J., Lee, E. S., Lee, M. C., Park, S. K. and Lim, J. C., "Preparation of Silver Chloride Nanoparticles Using AOT-Based Microemulsion," J. Korean Ind. Eng. Chem., 13(6), 551-557(2002)
  5. Lim, J. C., "Effect of Cosurfactant on Preparation of AgBr Nanoparticles Using AOT-Based Microemulsions," J. Korean Ind. Eng. Chem., 15(2), 216-224(2004)
  6. Kim, T. H., Kim, J. Y., Kim, M. C., Park, S. J., Park, S. K. and Lim, J. C., "Preparation of Silica Nanoparticles Using Water in Oil Microemulsion," Korean Chem. Eng. Res., 41(2), 174-185(2003)
  7. Yun, C. Y., Chah, S., Kang, S. K. and Yi, J., "The Effect of Ultrasonic Waves on the Fabrication of $TiO_{2}$ Nanoparticles on a Substrate Using a Self-assembly Method," Korean J. Chem. Eng., 21(5), 1062-1065(2004) https://doi.org/10.1007/BF02705593
  8. Shjn, S. I. and Oh, S. G., "Preparation of Nanoparticles Using Surfactants," Prospectives of Industrial Chemistry, 4(2), 40-47(2001)
  9. Kim, S. H., Kim, K. D., Song, G. Y. and Kim, H. T., "The Effect of Reaction Conditions on Particle Size and Size Distribution in the Synthesis of $SiO_{2}$ Nanoparticles from W/O Microemulsion Method," Korean Chem. Eng. Res., 41(1), 75-79(2003)
  10. Taleb, A., Petit, C. and Pilem, M. P., "Synthesis of Highly Monodisperse Nanoparticles from AOT Reverse Micelles: A Way to 2D and 3D Self-Organization, Chem. Mater., 9(4), 950-959(1997) https://doi.org/10.1021/cm960513y
  11. Petit, C., Lixon, P. and Pileni, M. P., "In Situ Synthesis of Silver Nanocluster in AOT Reverse Micelles," J. Phys. Chem., 97(49), 12974-12983(1993) https://doi.org/10.1021/j100151a054
  12. Tanaka, R. and Shiromizu, T., "Stepwise Process Forming AOT W/O Microemulsion Investigated by Dielectric Measurements," Langmuir, 17(26), 7995-8000(2001) https://doi.org/10.1021/la010368p
  13. Li, Y. C. and Park, C. W., "Particle Size Distribution in the Synthesis of Nanoparticles Using Microemulsions," Langmuir, 15(4), 952-956(1999) https://doi.org/10.1021/la980550z
  14. Nagarajan, R. and Ruckenstein, E., "Molecular Theory of Microemulsions," Langmuir, 16(16), 6400-6415(2000) https://doi.org/10.1021/la991578t
  15. Nazario, L. M. M., Crespo, J. P. S. G., Holzwarth, J. F. and Hatton, T. A., "Dynamics of AOT and AOT/Nonionic Cosurfactant Microemulsions: An Iodine-Laser Temperature Jump Study," Langmuir, 16(14), 5892-5899(2000) https://doi.org/10.1021/la991674u
  16. Tojo, C., Blanco, M. C. and Quintela, M. A. L., "The Influence of Reactant Excess and Film Flexibility on the Mechanism of Nanoparticle Formation in Microemulsions: a Monte Carlo Simulation," Langmuir, 14(24), 6835-6839(1998) https://doi.org/10.1021/la980693l
  17. Santra, S., Tapec, R., Theodoropoulou, N., Dobson, J., Hebard, A. and Tan, W., "Synthesis and Characterization of Silica-Coated Iron Oxide Nanoparticles in Microemulsion: The Effect of Nonionic Surfactants," Langmuir, 17(10), 2900-2906(2000) https://doi.org/10.1021/la0008636
  18. Kim, D. W., Oh, S. G. and Lee, K. D., "Preparation of Ultrafine Monodispersed Indium-Tin Oxide Particles in AOT-Based Reverse Microemulsions as Nanoreactors," Langmuir, 15(5), 1599-1603 (1999) https://doi.org/10.1021/la9815906
  19. Bagwe, R. P. and Khilar, K. C., "Effects of Intermicellar Exchange Rate on the Formation of Silver Nanoparticles in Reverse Microemulsions of AOT," Langmuir, 16(3), 905-910(2000) https://doi.org/10.1021/la980248q
  20. Chang, C. L. and Fogler, H. S., "Kinetics of Silica Particle Formation in Nonionic W/O Microemulsion from TEOS," AICHE J., 42(11), 3153-3163(1996) https://doi.org/10.1002/aic.690421115
  21. Chang, C. L. and Fogler, H. S., "Controlled Formation of Silica Particles from Tetraethyl Orthosilicate in Nonionic Water-in-Oil Microemulsion," Langmuir, 13(13), 3295-3307(1997) https://doi.org/10.1021/la961062z
  22. Sugimoto, T. and Shiba, F., "A New Approach to Interfacial Energy. 4. Effects of Adsorption of Halide Ions and Gelatin on Solid-Liquid Interfacial Energies of Silver Halides," J. Phys. Chem. B., 103(18), 3616-3625(1999) https://doi.org/10.1021/jp9843499
  23. Song, H., Lee, H. S., Kwon, D. J., Jung, K. Y., Lim, J. C., Lee, E. S., Lee, M. C. and Shin, H. S., "Study on Preparation and Mophology of Silver Chlorobromide Microcrystals in Photographic Emulsion," J. Ind. Eng. Chem., 8(1), 82-88(2002)
  24. Lee, M. C., Lim, J. C., Lee, E. S., Ahn, H. C., Zvidentsova, N. S., Kolesnikov L. V. and Kolesnikova, I. L., "Chemical Ripening of AgCl Octahedral Microcrystals," J. Ind. Eng. Chem., 8(3), 247-252(2002)
  25. Sugimoto, T. and Shiba, F., "Spontaneous Nucleation of Monodisperse Silver Halide Particles from Homogeneous Gelatin Solution II: Silver Bromide," Colloids Surf. A, 164(2-3), 205-215 (2000) https://doi.org/10.1016/S0927-7757(99)00365-9
  26. Andreeva, A. I., Krasovskii, A. N. and Novikov, D. V., "Photosensitive Gelatin Layers Based on AgCl Nanocrystals Synthesized in situ in Water Droplets of Reverse Micelles in the Isooctane- Water-AOT System," Russian J. Applied Chem., 72, 167-177 (1999)
  27. Monnoyer, P., Fonceca, A. and Nagy, J. B., "Preparation of Colloidal AgCl Particles from Microemulsions," Colloids Surf. A, 100, 233-243(1995) https://doi.org/10.1016/0927-7757(95)03187-I
  28. Bagwe, R. P. and Khilar, K. H., "Effects of the Intermicellar Exchange Rate and Cations on the Size of Silver Chloride Nanoparticles Formed in Reverse Micelles of AOT," Langmuir, 13(24), 6432-6438(1997) https://doi.org/10.1021/la9700681
  29. Hou, M. J. and Shah, D. O., "Effects of the Molecular Structure of the Interface and Continuous Phase on Solubilization of Water in Water/Oil Microemulsions," Langmuir, 3(6), 1086-1096(1987) https://doi.org/10.1021/la00078a036
  30. Bansal, V. K., Shah, D. O. and O'Connell, J. P., "Influence of Alkyl Chain Length Compatibility on Microemulsion Structure and Stabilization," J. Colloid Interface Sci., 75(2), 462-475(1980) https://doi.org/10.1016/0021-9797(80)90471-3
  31. Johnson, K. and Shah, D. O., "Effect of Oil Chain Length and Electrolytes on Water Solubilization in Alcohol-Free Pharmaceutical Microemulsions," J. Colloid Interface Sci., 107(1), 269-271 (1985) https://doi.org/10.1016/0021-9797(85)90172-9
  32. Candau, F., Leong, Y. S., Pouyet, G. and Candau, S. J., "Inverse Microemulsion Polymerization of Acrylamide: Characterization of the Water-in-Oil Microemulsions and the Final Microlatexes," J. Colloid Interface Sci., 101(1), 167-183(1984) https://doi.org/10.1016/0021-9797(84)90017-1
  33. De Gennes, P. G. and Taupin, C., "Microemulsion and the Flexibility of Oil/Water Interfaces," J. Phys. Chem, 86(13), 2294-2304(1982) https://doi.org/10.1021/j100210a011
  34. Caillet, C., Herbrant, M. and Tondre, C., "Rate of Water Uptake by Water-in-Oil Microemulsions in Relation with the Properties of the Amphiphilic Film," Langmuir, 14(16), 4378-4385(1998) https://doi.org/10.1021/la971374h
  35. Sjoblom, J., Lindberg, R. and Friberg, S. E., "Microemulsions: Phase Equilibria Characterization, Structures, Applications and Chemical Reactions," Adv. Colloid Interface Sci., 65, 125-287(1996) https://doi.org/10.1016/0001-8686(96)00293-X
  36. Modes, S. and Lianos, P., "Luminescence Probe Study of the Conditions Affecting Colloidal Semiconductor Growth in Reverse Micelles and Water-in-Oil Microemulsions," J. Phys. Chem., 93(15), 5854-5859(1989) https://doi.org/10.1021/j100352a040
  37. Arriagada, F. J. and Osseo-Asare, K., "Synthesis of Nanosize Silica in Aerosol OT Reverse Microemulsions," J. Colloid Interface Sci., 170(1), 8-17(1995) https://doi.org/10.1006/jcis.1995.1064
  38. Arraigada, F. J. and Osseo-Asare, K., "Preparation of $SiO_{2}$ Nanoparticles in a Non-ionic Reverse Micellar System," Colloids Surf., 50, 321-339(1990) https://doi.org/10.1016/0166-6622(90)80273-7
  39. Arraigada, F. J. and Osseo-Asare, K., "Phase and Dispersion Stability Effects in the Synthesis of Silica Nanoparticles in a Nonionic Reverse Microemulsion," Colloids Surf., 69(2-3), 105-115(1992) https://doi.org/10.1016/0166-6622(92)80221-M
  40. Arraigned, F. J. and Osseo-Asare, K., "Synthesis of Nanosize Silica in a Nonionic Water-in-Oil Microemulsion: Effects of the Water/Surfactant Molar Ratio and Ammonia Concentration," J. Colloid Interface Sci., 211(2), 210-220(1999) https://doi.org/10.1006/jcis.1998.5985