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化学学报
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化学学报 ›› 2009, Vol. 67 ›› Issue (2): 174-178. 上一篇    下一篇

研究简报

甲醛诱导合成WO3粉体与光致变色性质研究

朱 华a 赵 丽b 陈 美a 颜莎宁a 张青龙a 沈 毅*,a

  

  1. (a中国地质大学(武汉)材料科学与化学工程学院 武汉 430074)
    (b湖北大学材料科学与工程学院 武汉 430062)

  • 投稿日期:2008-06-16 修回日期:2008-08-04 发布日期:2009-01-28
  • 通讯作者: 沈 毅

Synthesis and Photochromic Properties of Formaldehyde Induced WO3 Powder

Zhu, Hua a Zhao, Li b Chen, Mei a Yan, Shaning a
Zhang, Qinglong a Shen, Yi *,a

  

  1. (a Faculty of Material Science and Chemistry Engineering, China University of Geosciences Wuhan, Wuhan 430074)
    (b Faculty of Materials Science and Engineering, Hubei University, Wuhan 430062)
  • Received:2008-06-16 Revised:2008-08-04 Published:2009-01-28
  • Contact: Shen, Yi

PDF

1488

被引次数

5

采用甲醛有机诱导在水热条件下制备了形貌新颖的WO3粉体, 使用XRD, SEM, TEM, BET等手段进行结构和形貌表征, 并利用测色计对所制备的样品进行光致变色性能测试. 结果表明, 合成的WO3粉体仍为六方相, 以甲醛为诱导剂合成的粉体是由WO3纳米立方体簇集成的大小均匀的微球团聚而成, 纳米立方体的边长为20～50 nm, 簇集形成的微球直径为500～800 nm, 这种特殊的形貌有利于光生质子的产生和传输, 从而提高了合成的WO3粉体的光致变色性能.

关键词: WO3粉体, 光致变色, 甲醛, 有机诱导

The WO3 powder was prepared by a hydrothermal method using formaldehyde as an organic inducer, and characterized by XRD, SEM, TEM and BET. Furthermore, its photochromic properties were studied by a color difference meter. The results indicate that the WO3 is hexagonal and has a particular structure. Under the SEM and TEM observations, it was found that these WO3 microspheres induced by HCOH comprised many WO3 cubes. The edge lengths of the WO3 cube range from 20 to 50 nm, and the average diameter of these microspheres is 500～800 nm. Moreover, the special structure of this induced product provides a better proton diffusion path, thus resulting in its high photochromic properties.

Key words: WO3 powder, photochromism, formaldehyde, organic induce