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[Study on X-ray Powder Diffraction of Various Structured Zinc Titanate Prepared by the Method of Direct Precipitation]

[Study on X-ray Powder Diffraction of Various Structured Zinc Titanate Prepared by the Method of Direct Precipitation]

Jian Guo, Zhi-hua Wang, Dong-liang Tao, Guang-sheng Guo

Guang Pu Xue Yu Guang Pu Fen Xi. 2007 May;27(5):1024-8.

PMID: 17655130

Abstract:

Zinc titanate powders were prepared from Ti(SO4)2, Zn(NO3)2 x (6)H2O and (NH4)2CO3 by the method of direct precipitation. The effects of reaction conditions on the structure of zinc titanate were studied. The sample was analyzed by means of XRD and TG-DTA. The structure of zinc titanate was affected by the reaction subsequence of the formation of titanic acid and zinc carbonate. In the reaction system where titanic acid was generated earlier, collision reaction occurred between the generated zinc carbonate molecule and the surrounding titanic acid molecule. When titanic acid was generated earlier and precipitant (NH4)2CO3 was sufficient, Zn2Ti3O8 was obtained because of the sufficient collision reaction and superfluous titanic acid. In the reaction system where zinc carbonate was generated earlier, collision reaction occurred between the generated titanic acid molecule and the surrounding zinc carbonate molecule. When zinc carbonate was generated earlier and precipitant (NH4)2CO3 was sufficient, Zn2TiO4 was obtained because of the sufficient collision reaction and superfluous zinc carbonate. In addition, the kinds and structure of the production were affected by the dosage of precipitant and the reaction temperature. Zn2Ti3O8 or Zn2TiO4 could be obtained easier when using more precipitant or higher reaction temperature which could cause more sufficient collision reaction. ZnTiO3 could be obtained under the conditions of less precipitant and lower reaction temperature.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP12036430	Zinc titanate		12036-43-0	Price

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