One-pot synthesis of intestine-like SnO2/TiO2 hollow nanostructures

被引:15
作者
Liu, Shunqiang [1 ]
Li, Yanxing [1 ]
Xie, Mingjiang [1 ]
Guo, Xuefeng [1 ]
Ji, Weijie [1 ]
Ding, Weiping [1 ]
机构
[1] Nanjing Univ, Sch Chem & Chem Engn, MOE, Key Lab Mesoscop Chem, Nanjing 210093, Peoples R China
基金
中国国家自然科学基金;
关键词
SnO2; TiO2; Composite materials; Nanomaterials; Semiconductors; DOPED TIO2 PHOTOCATALYSTS; TITANIA; FILMS; SNO2; PHOTOELECTROCHEMISTRY; DECOMPOSITION; NANOPARTICLES; ANATASE; DYE;
D O I
10.1016/j.matlet.2009.11.030
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In the present study the intestine-like binary SnO2/TiO2 hollow nanostructures are one-pot synthesized in aqueous phase at room temperature via a colloid seeded deposition process in which the intestine-like hollow SnO2 spheres and Ti(SO4)(2) are used as colloid seeds and Ti-source, respectively. The novel core (SnO2 hollow sphere)-shell (TiO2) nanostructures possess a large surface area of 122 m(2)/g (calcined at 350 degrees C) and a high exposure of TiO2 surface. The structural change of TiO2 shell at different temperatures was investigated by means of X-ray diffraction and Raman spectroscopy. It was observed that the rutile TiO2 could form even at room temperature due to the presence of SnO2 core and the unique core-shell interaction. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:402 / 404
页数:3
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