物理化学学报 >> 2002, Vol. 18 >> Issue (04): 368-371.doi: 10.3866/PKU.WHXB20020417

研究简报 上一篇    下一篇

光催化活性TiO2薄膜的低温制备

赵文宽;方佑龄   

  1. 武汉大学化学系,武汉 430072
  • 收稿日期:2001-08-03 修回日期:2001-11-21 发布日期:2002-04-15
  • 通讯作者: 赵文宽 E-mail:wkzhao@whu.edu.cn

Synthesis of Photocatalytic Activity TiO2 Thin Films at LowTemperature

Zhao Wen-Kuan;Fang You-Ling   

  1. Department of Chemistry,Wuhan University ,Wuhan 430072
  • Received:2001-08-03 Revised:2001-11-21 Published:2002-04-15
  • Contact: Zhao Wen-Kuan E-mail:wkzhao@whu.edu.cn

摘要: 在低温下,将基材浸渍在含配合物,F-离子捕获剂H3BO3,及加有结晶诱导剂锐钛矿TiO2纳米晶的过饱和水溶液中,在基材上沉积锐钛矿型TiO2薄膜.研究了水溶液的浓度、反应物和H3BO3的摩尔比、沉积时间、反应温度等对沉积TiO2薄膜的结构和性能的影响.并用UVVis、XRD和SEM等对TiO2薄膜的透明性、厚度、物相和形貌等进行了表征.用亚甲蓝的光催化降解,评价了TiO2薄膜的光催化活性.

关键词: 低温, 液相沉积, 锐钛矿型, 透明TiO2薄膜, 光催化

Abstract: Anatase TiO2 thin films were obtained on a substrate at lowtemperature by addition of H3BO3 into (NH4)2TiF6 solution supersaturated with anatase nanocrystalline TiO2.Effect of concentration,/H3BO3 molar ratio, deposition time and reaction temperature on the surface structure and performance of deposited thin films were investigated.The transparence ,thickness,crystal structure and image of the deposited films were characterized by XRD,SEM,and UVVis absorption spectroscopy.Photocatalytic activity of the TiO2 thin films was evaluated by degradation of methylene blue.

Key words: Lowtemperature, Liquid phase deposition, Anatase, Transparent TiO2 thin films, Photocatalysis