Evolution of zirconia coating layer on rutile TiO₂ surface and the pigmentary property

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• 作者：Yunsheng Zhang ; Hengbo Yin ; Aili Wang ; Chun Liu ; Longbao Yu ; Tingshun Jiang ; Ying Hang
• 关键词：A. Thin films ; B. Chemical synthesis ; C. Electron microscopy ; C. Infrared spectroscopy ; D. Surface properties
• 刊名：Journal of Physics and Chemistry of Solids
• 出版年：2010
• 出版时间：October 2010
• 年：2010
• 卷：71
• 期：10
• 页码：1458-1466
• 全文大小：849 K

文摘

Zirconia-coated rutile TiO₂ composites were prepared by the chemical liquid deposition method starting from rutile TiO₂ and ZrOCl₂. The amorphous zirconia coating layers were anchored at the TiO₂ surface via Zr–O–Ti bond. The formation of continuous and dense zirconia coating layers was dependent on the pH value of the reaction solution and the mole ratio of ZrOCl₂ to TiO₂. As compared to the naked rutile TiO₂, the water dispersibility, whiteness, brightness, and relative light scattering index of the zirconia-coated rutile TiO₂ composites were increased.