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中文摘要：
本文采用水热法,以TiCl3和SnCl4.5H2O水溶液为前驱物,在180℃温度下反应24h。X能谱（EDS）显示：当前驱物中Ti^3＋、Sn^4＋离子比为4：1时,所得复合半导体纳米晶体中掺入的Sn的原子百分比为1%;当前驱物中Ti^3＋、Sn^4＋离子比为1：1时,掺入Sn的原子百分比为2.8%。实验结果表明在TiO2金红相中进行晶格替代掺杂是比较困难的。
英文摘要：
In this paper, pure rutile Sn-doped TiO2 nanocrystals were synthesized by hydrothermal method, with TiCl3 and SnCl4 aqueous solutions as the precursor, at 180℃ for 24h. When the ratio of Ti^3＋/Sn^4＋ in the precursor solution was 4：1, EDS spectra show that the atomic percent concentration of the doped-Sn^4＋ in the synthesized rutile TiO2 nanocrystals was 1%.When the ratio of Ti3＋/Sn^4＋ was changed to 1：1,the atomic percent concentration of doped-Sn^4＋ was up to 2.8%. It＇s indicate that it is hard for Sn atoms to dope into the lattices of rutile TiO2 nanocrystals by the way of lattice- substituting.
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