General Synthesis and Optical Properties of Monodisperse Multifunctional Metal-Ion-Doped TiO2 Hollow Particles

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• 作者：Bo Peng ; Xianwei Meng ; Fangqiong Tang ; Xiangling Ren ; Dong Chen ; Jun Ren
• 刊名：Journal of Physical Chemistry C
• 出版年：2009
• 出版时间：November 26, 2009
• 年：2009
• 卷：113
• 期：47
• 页码：20240-20245
• 全文大小：309K
• 年卷期：v.113,no.47(November 26, 2009)
• ISSN：1932-7455

文摘

Various, monodisperse, multifunctional metal-ion-doped TiO₂ hollow particles are prepared by a general metal-ion-doped method. They show brilliant colors in the visible region and low reflectance in the ultraviolet range. For example, the reflectances of green Co-doped TiO₂, red Fe-doped TiO₂, green Co/Zn-doped TiO₂, and sky blue Co/Al-doped TiO₂ particles are 5.9, 4.8, 5.9, and 4.8%, respectively, and the infrared emissivities in the region of 8−14 μm are very high, 97.5, 93.7, 95.2, and 96.9%, respectively. These results show that the monodisperse hollow particles could be potential candidates as good pigments, ultraviolet prevention materials, and thermal conservation materials. In addition, Al-doped TiO₂ and Al/Fe-doped TiO₂ particles are also prepared by this strategy.