Preparation and characterization of silver/TiO2 composite hollow spheres

被引:43
作者
Song, CX [1 ]
Wang, DB [1 ]
Gu, GH [1 ]
Lin, YS [1 ]
Yang, JY [1 ]
Chen, L [1 ]
Fu, X [1 ]
Hu, ZS [1 ]
机构
[1] Qingdao Univ Sci & Technol, Dept Appl Chem, Qingdao 266042, Peoples R China
关键词
silver/TiO2; hollow spheres; template; core-shell particles;
D O I
10.1016/j.jcis.2003.08.062
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
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/TiO2 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. (C) 2003 Elsevier Inc. All rights reserved.
引用
收藏
页码:340 / 344
页数:5
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