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Preparation of Zinc Oxide by Hydrothermal Precipitation and Degradation of Tartrazine

수열 합성법에 의한 Zinc Oxide의 제조 및 Tartrazine 분해 특성

  • Na, Seok-Eun (Department of Chemical Engineering, Pukyong National University) ;
  • Jeong, Sang-Gu (Department of Chemical Engineering, Pukyong National University) ;
  • Jeong, Ga-Seop (Department of Food Engineering, Tong Myoung University) ;
  • Kim, Si-Young (Department of Mechanical System Engineering, Pukyong National University) ;
  • Ju, Chang-Sik (Department of Chemical Engineering, Pukyong National University)
  • Published : 2011.12.01

Abstract

The effects of reaction temperature, reactant concentration, pH of solution and mixing order of reactants on the particle shape and size distribution of zinc oxide were investigated in the preparation of zinc oxide from ammonium hydroxide and zinc acetate by the method of aqueous hydrothermal precipitation method, and the photocatalytic ability of zinc oxide synthesized was measured from the degradation of tartrazine under UV irradiation. The average particle size was increased with pH of solution but decreased with zinc acetate concentration and reaction temperature. The optimum condition for the synthesis of minimum sized zinc oxide was pH 11.2, concentration of zinc acetate 0.6 M and reaction temperature $90^{\circ}C$, and its average particle size was 3.133 ${\mu}$m. 97% of tartrazine was degraded by zinc oxide in sixty minutes.

암모니아수와 zinc acetate로부터 액상 수열합성법에 의한 ZnO의 제조에 있어 반응온도, 반응물의 농도와 혼합방법, 용액의 pH 등 반응조건에 따른 ZnO 입자의 형상과 입자분포 등 제조특성을 고찰하고, UV 조사하에 tartrazine의 광분해를 측정하여 합성된 ZnO의 광촉매로서의 성능을 확인하였다. 반응용액의 pH가 높을수록 ZnO 입자의 평균 크기는 증가하였고, zinc acetate의 농도가 증가할수록 그리고 반응온도가 증가할수록 입자의 크기는 감소하였다. 반응용액의 혼합시 암모니아수 주입 후에 zinc acetate를 첨가하였을 경우 더 작은 입자를 얻을 수 있었다. 최소 크기의 ZnO 입자의 생성을 위한 최적 조건은 용액의 pH 11.2, zinc acetate의 농도 0.6 M, 반응온도 $90^{\circ}C$였으며, 입자 평균크기는 3.133 ${\mu}$m이었다. 합성온도 $80^{\circ}C$, zinc acetate 농도 1.0M 및 반응용액의 pH 11.2의 조건에서 합성된 ZnO에 의한 tartrazine의 광촉매 분해는 분해시간 60분에서 약 97%의 분해율을 보였다.

Keywords

References

  1. Ju, C. S., Lee, M. K. and Hong, S. S., "The Effect of Precipitation Conditions on the Shapes and Size Distributions of Zinc Oxide Particles Prepared by Homogeneous Precipitation," HWAHAK KONGHAK, 35(5), 655-660(1997).
  2. Jose, J. and Abdul Khadar, M., "Impedance Spectroscopic Analysis of ac Response of Nanophase ZnO and $ZnO-Al_{2}O_{3} $ Nanocomposites," Nanostruct. Master., 11(8), 1091-1099(1999). https://doi.org/10.1016/S0965-9773(99)00399-2
  3. Jose, J. and Abdul Khadar, M., "Role of Grain Boundaries on the Electrical Conductivity of Nanophase Zinc Oxide," Master. Sci. Eng. A., 304-306, 810-813(2001). https://doi.org/10.1016/S0921-5093(00)01579-3
  4. Jose, J. and Abdul Khadar, M., "Role of Grain Boundaries on the Electrical Properties of ZnO-Ag Nanocomposites: Animpedance Spectroscopic Study," Acta Mater. 49, 729-735(2001). https://doi.org/10.1016/S1359-6454(00)00369-4
  5. Morales, A. M. and Lieber, C. M., "A Laser Ablation Method for the Synthesis of Crystalline Semiconductor Nanowires," Science, 279, 208(1998). https://doi.org/10.1126/science.279.5348.208
  6. Han, W., Fan, S., Li, Q. and Hu, Y., "Synthesis of Gallium Nitride Nanorods Through a Carbon Nanotube-confined Reaction," Science, 277, 1287(1997). https://doi.org/10.1126/science.277.5330.1287
  7. Li, J. Y., Chen, X. L., Qiao, Z. Y., Cao, Y. G. and Lan, Y. C., "Formation of GaN Nanorods by a Sublimation Method," J. Cryst. Growth, 213(9), 408(2000). https://doi.org/10.1016/S0022-0248(00)00390-0
  8. Yang, P. and Lieber, C. M., "Nanostructured High-temperature Superconductors: Creation of Strong-pinning Columnar Defects In Nanorod/superconductor Composites," J. Master. Res., 12(11), 2981(1997).
  9. Pan, Z. W., Dai, Z. R. and Wang, Z. L., "Nanobelt of Semiconducting Oxides," Science, 291, 1947(2001). https://doi.org/10.1126/science.1058120
  10. Huang, M. H., Wu, Y., Feick, H., Tran, N., Weber, E. and Yang, P., "Catalytic Growth of Zinc Oxide Nanowires by Vapor Transport," Adv. Master., 13, 113(2001). https://doi.org/10.1002/1521-4095(200101)13:2<113::AID-ADMA113>3.0.CO;2-H
  11. Yoo, B. K., Park, Y. W., Kang, C. Y., Kim, J. S. and Yoon, S. Y., "Synthesis of 3D Nanostructured Flower-like ZnO Architecture on ZnO Thin-film by Hydrothermal Process," J. Korean Inst. Elec. Electrn. Mat. Eng., 22(1), 884(2009).
  12. Kim, K. B., Kim, C. I., Jeong, Y. H., Lee, Y. J. and Paik, J. H., "Growth, Structural and Optical Properties of c-axis Oriented ZnO Nanorods Array by Hydrothermal Method," J. Korean Inst. Elec. Electrn. Mat. Eng., 23(3), 222(2010). https://doi.org/10.4313/JKEM.2010.23.3.222
  13. Ju, C. S., Lee, H. G., Jeong, Y. O., Chun, C. H. and Hwang, D. K., "The Preparation of Zinc Oxide Fine Particles by Homogeneous Precipitation Method," HWAHAK KONGHAK, 33(4), 437- 444(1995).
  14. Jeong, K. S., "A study on the Decomposition of Water Soluble Dyes by $UV/TiO_{2}$," J. Environmental Sciences, 12(3), 319-324(2003). https://doi.org/10.5322/JES.2003.12.3.319
  15. Jeong, K. S., "Photodecomposition of Tar Colorant With Zinc Oxide Suspension," J. Environmental Sciences, 15(12), 1155- 1161(2006). https://doi.org/10.5322/JES.2006.15.12.1155
  16. Takada, T., "Effect of pH Values on the Formation and Solubility of Zinc Compounds," Bull. Inst. Chem. Res., 56(5), (1978).
  17. Kim, B. C., Park, Z. H., Shin, H. S., Lee, S. K. and Lee, B. K., "Synthesis of ZnO Powder by Precipitation Method and Its Cathodoluminescence Properties," J. Korean Ceramic Society., 35(2), 107-114(1998).
  18. Jeong, K. S., Na, S. E. and Lee, H. S., "Photocatalytic Degradation of Tartrazine using $UV/TiO_{2}$", Korean Soc. Coll. Edu., 5(2), 183-188(2004).

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