中华医学超声杂志

应用化学 ›› 2017, Vol. 34 ›› Issue (1): 0-0.

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纳米棒组装的WO3·0.33H2O及其光催化性能改善

李进,冯勋(),郭辉   

  1. 洛阳师范学院化学与化工学院,河南省功能导向多孔材料重点实验室 河南 洛阳 471934
  • 收稿日期:2016-09-29 出版日期:2017-01-03 发布日期:2017-01-03
  • 通讯作者: 冯勋
  • 基金资助:
    国家自然科学基金(21273101)河南省高等学校重点科研项目计划(16A150036)河南省高校科技创新人才(2014HASTIT014)和河南省杰出青年基金(164100510012)项目资助

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

LI Jin,FENG Xun(),GUO Hui   

  1. He'nan Key Laboratory of Function-Oriented Porous Materials,College of Chemistry and Chemical Engineering,Luoyang Normal University, Luoyang,He'nan 471934,China
  • Received:2016-09-29 Published:2017-01-03 Online:2017-01-03
  • Contact: FENG Xun
  • Supported by:
    Supported by the National Natural Science Foundation of China(No.21273101), the Key Scientific Research Project of Higher Education of He'nan(No.16A150036), the Program for Science & Technology Innovation Talents in Universities of He'nan Province(No.2014HASTIT014), the Excellent Youth Foundation of He'nan Scientific Committee(No.164100510012)

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

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