Acta Chimica Sinica ›› 2011, Vol. 69 ›› Issue (24): 2955-2958.DOI: 10.6023/A1104263 Previous Articles     Next Articles

Full Papers

带坑WO3单晶纳米片的合成与光学性能

朱庆俊, 俞建长*, 黄清明, 张新奇   

  1. (福州大学材料科学与工程学院 福州 350108)
  • 投稿日期:2011-04-26 修回日期:2011-07-13 发布日期:2011-08-24
  • 通讯作者: 俞建长 E-mail:jcyu719@163.com
  • 基金资助:

    福建省自然科学基金

Synthesis and Optical Properties of Single Crystal WO3 Nanoplates with Nano-Pits

ZHU Qing-Jun, YU Jian-Chang, HUANG Qing-Ming, ZHANG Xin-Qi   

  1. (College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108)
  • Received:2011-04-26 Revised:2011-07-13 Published:2011-08-24

Using tungstate (Na2WO4•2H2O) and mesoporous silica dioxide (SBA-15) as tungsten raw material and hard template respectively, tungsten oxide nanoplates with nano-pits were successfully synthesized in the acidic condition by a modified dipping-reduction method. The composition, morphology and optical properties of as-prepared products were characterized by X-ray diffraction (XRD), energy dispersive X-ray (EDX), scanning electron microscope (SEM), high resolution transmission electron microscopy (HRTEM) and ultraviolet-visible transmission spectrum (UV-Vis). Results showed that the products were single crystal tungsten oxide nanoplates with nano-pits which had higher transmission rate in the near UV-visible region. Furthermore, The WO3 thin films changed from the monoclinic to monoclinic phase and orthogonal phase with the increase of sintered temperature, and the UV-visible light transmittance increased with sintered temperature of WO3 thin film.

Key words: SBA-15, dipping-reduction method, nano-pits, tungsten oxide