Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 113, Issue 47, Pages 20240-20245Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp906937e
Keywords
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Funding
- National Hi-Tech 863 Programme [2009AA03Z302]
- National Science Foundation of China [60736001]
- Beijing Natural Science Foundation [2093044]
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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 mu m 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.
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