<![CDATA[Multisite luminescence and photocatalytic properties of TiO <ce:inf loc='post'>2</ce:inf>:Sm <ce:sup loc='post'>3+</ce:sup> and TiO <ce:inf loc='post'>2</ce:inf>:Sm <ce:sup loc='post'>3+</ce:sup>@TiO <ce:inf loc='post'>2</ce:inf>/TiO <ce:inf loc='post'>2</ce:inf>:Sm <ce:sup loc='post'>3+</ce:sup>@SiO <ce:inf loc='post'>2</ce:inf> luminescent enhancement materials]]>
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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >2:Sm 3+ and TiO 2:Sm 3+@TiO 2/TiO 2:Sm 3+@SiO 2 luminescent enhancement materials]]>
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2:Sm 3+ and TiO 2:Sm 3+@TiO 2/TiO 2:Sm 3+@SiO 2 luminescent enhancement materials]]>

机译：<！[cdata [cdata发光和tios的光催化属性 2 ：sm 3 + 和tio 2 ：sm 3 + @tio / tio 2 ：sm 3 + @sio <是什么： inf place =“post”> 2 发光增强材料]]]>

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AbstractSm3+doped TiO2nanocrystals with various morphologies were fabricated via a facile hydrothermal route, and the effect of morphology on the luminescence properties and photocatalytic activity of the products has been investigated. PL studies on TiO2:Sm3+revealed that the sensitized emission is a much more efficient pathway than the direct excitations of Sm3+. Combined 10?K spectra and theoretical analysis, several kinds of sites of Sm3+ions have been found in TiO2matrix. Most importantly, structural models for the formation of multiple sites are proposed based on the optical behaviors of Sm3+at different sites. Photocatalytic results suggest that flower-like hierarchical architectures show the highest photocatalytic activity compared with nanorods samples with different aspect ratios, and the photodegradation efficiency was 96.8% after 20?min for degradation of methyl orange under white light irradiation. And surface photovoltage spectroscopy (SPV) have been measured to understand the separation and transfer behaviour of photogenerated charges which are helpful for explaining the photocatalytic and luminescence properties deeply. Moreover, TiO2:Sm3+@TiO2luminescent enhancement homo-structures and TiO2:Sm3+@SiO2luminescent enhancement hetero-structures are prepared. The effect of calcination temperature on luminescence intensity and the luminescence enhancement mechanism have been discussed in detail.Highlights?Luminescence and photocatalytic properties of TiO2:Sm3+were investigated.?Structural models for the formation of multiple sites of Sm3+were proposed.?Luminescence intensities of TiO2:Sm3+could be improved by coating SiO2or TiO2.]]>
机译：<！[CDATA [ 抽象 sm 3 + 掺杂tio 2> 2 通过容易水热途径制造具有各种形态的纳米晶体，并研究了对产品的发光性质和光催化活性的形态的影响。 PL研究TiO 2 ：SM 3 + 显示敏感的排放是更多的高于SM 3 + 的高效途径。组合10？k光谱和理论分析，在Tio 2中发现了几种SM 3 + 离子。 矩阵。最重要的是，基于SM 3 + 在不同部位的光学行为来提出用于形成多个站点的结构模型。光催化结果表明，与具有不同纵横比的纳米棒样品相比，花样的等级架构显示出最高的光催化活性，并且在白色光照射下甲基橙降解甲基橙的光降解效率为96.8％。已经测量了表面光伏光谱（SPV）以了解光生电电荷的分离和转移行为，这有助于解释光催化和发光性质。此外，TIO 2 ：SM 3 + @tio 2 发光增强同源结构和TIO 2 ：SM 3 + @sio 2 发光增强异质结构。详细讨论了煅烧温度对发光强度和发光增强机制的影响。 亮点 ？ < CE：PARA ID =“P0010”查看=“全部”> TIO的发光和光催化属性 2 ：SM 3研究了+ 。 ？ 建议形成多个站点的“全部”结构模型 3 + 。 ？ tio的发光强度 2 ：sm 3 + 可以通过涂层sio 2 或tio 2 。 ]]>

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