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第 7 期 田 宇，等: 一步水热法制备 Sn 掺杂 TiO 2 及光催化产氢性能 ·1187·

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结构且具有较高的比表面积。Sn 掺杂 TiO 2 的吸收 and N co-doped TiO 2 [J]. Physical Chemistry Chemical Physics,
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边扩大到可见光区域，主要是 Sn 5s 轨道和 O 2p 2016, 18(14): 9636-9644.
轨道形成了杂质能级，使催化剂吸收带边红移，而 [12] Roy A, Arbuj S, Waghadkar Y, et al. Concurrent synthesis of
4+
Sn 掺杂 TiO 2 不具备降低禁带宽度的能力，因此不 SnO 4/SnO 2, nanocomposites and their enhanced photocatalytic
activity [J]. Journal of Solid State Electrochemistry, 2017, 21(1): 9-17.
能响应可见光。产氢性能测试结果表明，在全波段下
[13] Tangale N P, Niphadkar P S, Samuel V, et al. Synthesis of
4+
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Sn 掺杂样品下的产氢性能较 Sn 掺杂样品和 TiO 2 Sn-containing anatase (TiO 2) by sol-gel method and their
有所提高，当 n(Ti)/n(Sn) = 20 时，催化剂样品在全波 performance in catalytic water splitting under visible light as a
段和可见光下产氢速率达到最大值，分别为 50.3 和 function of tin content [J]. Materials Letters, 2016, 171: 50-54.
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33 μmol/（h·g）。而在可见光下对 Sn(Ⅱ)-TiO 2-20 样品
visible-light-active Sn( Ⅱ )-TiO 2 photocatalysts [J]. Physical
的产氢循环实验中：催化剂循环 5 次，持续反应 30 h
Chemistry Chemical Physics, 2013, 15(17): 6185-6189.
后仍保持良好的产氢性能，说明此法制备的催化剂 [15] Fan Z G, Meng F M, feng J, et al. One-step hydrothermal synthesis of
具有良好的稳定性。 mesoporous Ce-doped anatase TiO 2, nanoparticles with enhanced
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