纳米棒组装的WO3·0.33H2O及其光催化性能改善

doi:10.11944/j.issn.1000-0518.2017.01.160396

摘要/Abstract

摘要：

以十二烷基苯磺酸(DBSA)和钨酸钠为原料,在无其它辅助剂条件下,通过水热方法制备了由纳米棒组装成的三维多级微结构WO₃·0.33H₂O。结果表明,反应原料DBSA不仅在反应中提供氢离子,而且还具备表面活性剂调控产物形貌的作用。在可见光照射下,由于其特殊的多级结构,WO₃·0.33H₂O展现出较强的光催化降解罗丹明B活性,降解率达100%,重复使用5次后,降解率仍保持较高水平。

关键词: 氧化钨水合物, 十二烷基苯磺酸, 三维多级微结构, 水热合成, 光催化降解

Abstract:

Three-dimensional WO₃·0.33H₂O hierarchical microstructures consisting of nanorods have been successfully constructed through a facile hydrothermal route, employing sodium tungstate and dodecylbenzenesulfonic acid(DBSA) as precursors without the assistance of any additives. Remarkably, DBSA not only acts as a reagent to provide H⁺ but also serves as a surfactant to tailor the morphology of the as-synthesized products. The hierarchically-structured WO₃·0.33H₂O displays a strong structure-enhanced photocatalytic activity for the degradation of rhodamine B(RhB) under visible light irradiation, and the degradation ratio of RhB is 100% and is still kept at a high degradation ratio after using 5 times.

Key words: tungsten trioxide hydrate, dodecylbenzenesulfonic acid, three-dimensional hierarchical microstructure, hydrothermal synthesis, photocatalytic degradation

李进, 冯勋, 郭辉. 纳米棒组装的WO₃·0.33H₂O及其光催化性能改善[J]. 应用化学, 2017, 34(1): 60-70.

LI Jin, FENG Xun, GUO Hui. Nanorod-Assembled WO₃·0.33H₂O Microstructures with Improved Photocatalytic Property[J]. Chinese Journal of Applied Chemistry, 2017, 34(1): 60-70.

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纳米棒组装的WO₃·0.33H₂O及其光催化性能改善

Nanorod-Assembled WO₃·0.33H₂O Microstructures with Improved Photocatalytic Property

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