氮掺杂二氧化钛粉体的制备及掺杂机理研究

于洋洋 于美燕 张玥 孙伟伟 刘盈

引用本文: 于洋洋, 于美燕, 张玥, 孙伟伟, 刘盈. 氮掺杂二氧化钛粉体的制备及掺杂机理研究[J]. 无机化学学报, 2013, 29(8): 1657-1662. doi: 10.3969/j.issn.1001-4861.2013.00.284 shu
Citation:  YU Yang-Yang, YU Mei-Yan, ZHANG Yue, SUN Wei-Wei, LIU Ying. Preparation and Mechanism of N-Doped TiO2 Powders[J]. Chinese Journal of Inorganic Chemistry, 2013, 29(8): 1657-1662. doi: 10.3969/j.issn.1001-4861.2013.00.284 shu

氮掺杂二氧化钛粉体的制备及掺杂机理研究

  • 基金项目:

    国家自然科学基金(No.51072188,No.21203171)资助项目。 (No.51072188,No.21203171)

摘要: 以钛酸四丁酯为钛源,尿素为氮源制备了N掺杂二氧化钛粉体。采用X射线衍射、透射电镜和紫外-可见吸收光谱对粉体晶粒尺寸、物相及光吸收性质进行了表征。结果表明,N掺杂有效抑制了二氧化钛晶粒的长大,并使TiO2光吸收效果大大提高。采用密度泛函方法对掺杂机理进行研究证明,N掺杂有效减小了TiO2带隙宽度,使吸收谱红移,相比替位氮掺杂,间隙氮掺杂更有利于提高光吸收效率。

English

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  • 收稿日期:  2012-12-26
  • 网络出版日期:  2013-05-06
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