Journal of the Korean Crystal Growth and Crystal Technology (한국결정성장학회지)

The Korea Association of Crystal Growth (한국결정성장학회)
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Effect of raw materials for the synthesis of TiO2 powders by a hydrothermal processing

  • Park, Jungju (Department of Advanced Materials Science and Engineering, Changwon National University) ;
  • Choi, Yeon Bin (Department of Advanced Materials Science and Engineering, Changwon National University) ;
  • Son, Jung Hun (Department of Advanced Materials Science and Engineering, Changwon National University) ;
  • Bae, Dong-Sik (Department of Advanced Materials Science and Engineering, Changwon National University)
  • Received : 2018.07.19
  • Accepted : 2018.08.10
  • Published : 2018.08.31
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Abstract

$TiO_2$ nanoparticles were prepared under high temperature and pressure conditions by precipitation from titanium tetrachloride ($TiCl_4$) and titanium isopropoxide (TTIP). $TiO_2$ powders were obtained in the temperature range of $150^{\circ}C{\sim}190^{\circ}C$ for 4 h. The microstructure and phase of the synthesized particles were studied by TEM and XRD. TEM and X-ray diffraction pattern shows that the synthesized particles were crystalline. The average sizes of the synthesized particles from titanium tetrachloride and titanium isopropoxide were below 20 nm and 10 nm, respectively. The average size of the synthesized particles increased with increasing reaction temperature. The effects of synthesis parameters, such as the reaction temperature and pH value are discussed.

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References

  1. R. Pool, "Clusters : Strange Morsels of Matter", Science 248 (1990) 1186. https://doi.org/10.1126/science.248.4960.1186
  2. Y. Wang and N. Herron, "Nanometer-sized semiconductor clusters: Materials synthesis, quantum size effects, and photophysical properties", J. Phys. Chem. 95 (1991) 525. https://doi.org/10.1021/j100155a009
  3. M.R. Hoffmann, S.T. Martin, W. Choi and D.W. Bahnemann, "Environmental applications of semiconductor photocatalysis", Chem. Rev. 95 (1995) 69. https://doi.org/10.1021/cr00033a004
  4. A. Fujishima, T.N. Rao and D.A. Tryk, "Titanium dioxide photocatalysis", J. Photochem. Photobiol. C: Photochem. Rev. 1 (2000) 1. https://doi.org/10.1016/S1389-5567(00)00002-2
  5. A.L. Linsebigler, G. Lu and J.T. Yates, "Photocatalysis on $TiO_2$ surfaces principles, mechanisms, and selected results", Chem. Rev. 95 (1995) 735. https://doi.org/10.1021/cr00035a013
  6. H. Tada, M. Yamamoto and S. Ito, "Promoting effect of $MgO_x$ submonolayer coverage of $TiO_2$ on the photoinduced oxidation of anionic surfactants", Langmuir 15 (1999) 3699. https://doi.org/10.1021/la9816712
  7. A. Hattori, M. Yamamoto, H. Tada and S. Ito, "A promoting effect of $NH_4F$ addition on the photocatalytic activity of sol-gel $TiO_2$ films", Chem. Lett. 8 (1998) 707.
  8. T. Hirakawa and P.V. Kamat, "Charge separation and catalytic activity of $Ag@TTiO_2$ core-shell composite clusters under UV-irradiation", J. Am. Chem. Soc. 127 (2005) 3928. https://doi.org/10.1021/ja042925a
  9. F.B. Li, X.Z. Li and M.F. Hou, "Photocatalytic degration of 2-mecaptobenzothiazole in aqueous $La^{3+}$-$TiO_2$ suspension for odor control", Appl. Catal. B. 48 (2004) 185. https://doi.org/10.1016/j.apcatb.2003.10.003
  10. F.B. Li and X.Z. Li, "Photocatalytic properties of gold/gold ion-modified titanium dioxide for wastewater treatment", Appl. Catal. A. 228 (2002) 15. https://doi.org/10.1016/S0926-860X(01)00953-X
  11. J.C. Yu, J.G. Yu and J.C. Zhao, "Enhanced photocatalytic activity of mesoporous and ordinary $TiO_2$ thin films by sulfuric acid treatment", Appl. Catal. B. 36 (2002) 31. https://doi.org/10.1016/S0926-3373(01)00277-6
  12. V. Subramanian, E.E. Wolf and P.V. Kamat, "Catalysis with $TiO_2$/gold nanocomposites. Effect of metal particle size on the fermi level equilibration", J. Am. Chem. Soc. 126 (2004) 4943. https://doi.org/10.1021/ja0315199
  13. J.C. Yu, J.G. Yu, W.K. Ho, Z.T. Jiang and L.Z. Zhang, "Effects of F- doping on the photocatalytic activity and microstructures of nanocrystalline $TiO_2$ powders", Chem. Mater. 14 (2002) 3808. https://doi.org/10.1021/cm020027c
  14. B.E. Yoldas, "Hydrolysis of titanium alkoxide and effects of hydrolytic polycondensation parameters", J. Mater. Sci. 21 (1986) 1087. https://doi.org/10.1007/BF01117399
  15. X.Z. Ding, Z.Z. Qi and Y.Z. He, "Effect of hydrolysis water on the preparation of nano-crystalline titania powders via a sol-gel process", J. Mater. Sci. Lett. 14 (1995) 21. https://doi.org/10.1007/BF02565273
  16. H. Cheng, J. Ma, Z. Zhao and L. Qi, "Hydrothermal preparation of uniform nanosize rutile and anatase particles", Chem. Mater. 7 (1995) 663. https://doi.org/10.1021/cm00052a010
  17. M.Y. K. Byrappa, "Handbook of Hydrothermal Technology (Materials and Processing Technology)", 2nd ed., M. Yoshimura, Ed., Vol. 1 (William Andrew, New York, 2001) p. 553.
  18. S. Hirano, "Morphological Forms of a-alumina particles synthesized in 1,4-butanediol solution", Am. Ceram. Soc. Bull. 66 (1987) 1342.
  19. W.J. Dawson, "Hydrothermal synthesis of manganese zinc ferrites", Am. Ceram. Soc. Bull. 67 (1989) 1673.
  20. S.B. Cho, S. Venigalla and J.H. Adair, "Science, Technology, and Apllication of Colloidal Suspensions (Ceramic Transactions)", 2nd ed., J.H. Adair, J.A. Casey and C.A. Randall, Ed., Vol. 54 (American Ceramic Society, Ohio, 1995) p. 139.
  21. K. Haberko and W. Pyda, "Science and Technology of Zirconia II", 2nd ed., N. Claussen, Ed., Vol. 12 (American Ceramic Society, Ohio, 1984) p. 774.