One-pot synthesis of intestine-like SnO2/TiO2 hollow nanostructures |
| |
Authors: | Shunqiang Liu Weijie Ji Weiping Ding |
| |
Affiliation: | Key Laboratory of Mesoscopic Chemistry, MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China |
| |
Abstract: | 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 m2/g (calcined at 350 °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. |
| |
Keywords: | SnO2 TiO2 Composite materials Nanomaterials Semiconductors |
本文献已被 ScienceDirect 等数据库收录! |