Preparation and characterization of silver/TiO2 composite hollow spheres |
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| Authors: | Song Caixia Wang Debao Gu Guohua Lin Yusheng Yang Jingyi Chen Lei Fu Xun Hu Zhengshui |
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| Affiliation: | Department of Applied Chemistry, Qingdao University of Science and Technology, Qingdao, Shandong 266042, People's Republic of China. |
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| Abstract: | Silver-coated poly(methyl acrylic acid) (PSA) core-shell colloid particles were prepared by an in situ chemical reduction method. Crystalline silver/titania composite hollow spheres were obtained by coating the as-prepared PSA/silver particles with an amorphous titania layer and subsequently calcining in Ar atmosphere. SEM and TEM investigation indicated that the size of the as-prepared PSA/silver and PSA/silver/TiO(2) core-shell particles and silver/titania composite hollow particles was fairly uniform and the wall thickness of the hollow spheres was in the range of 40-80 nm. UV-vis absorption spectra were recorded to investigate their optical properties. |
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