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2009 , Vol. 24 >Issue 4: 680 - 684

DOI: https://doi.org/10.3724/SP.J.1077.2009.00680

研究论文

TiO2纳米管阵列薄膜光电协同降解亚甲基蓝的研究

  • 陈 怡 ,
  • 施利毅 ,
  • 袁 帅 ,
  • 吴 钧 ,
  • 张美红 ,
  • 方建慧
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  • 上海大学 1.纳米科学与技术研究中心， 2. 理学院, 上海 200444

收稿日期: 2008-10-15

  修回日期: 2008-12-08

  网络出版日期: 2009-07-20

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Photoelectrocatalytic Degradation of Methylene Blue by TiO2 Nanotube
Array Prepared by Anodic Oxidation

  • CHEN Yi ,
  • SHI Li-Yi ,
  • YUAN Shuai ,
  • WU Jun ,
  • ZHANG Mei-Hong ,
  • FANG Jian-Hui
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  • 1. NanoScience and Technology Research Center, Shanghai University, Shanghai 200444, China; 2. College of Science, Shanghai University, Shanghai 200444, China

Received date: 2008-10-15

  Revised date: 2008-12-08

  Online published: 2009-07-20

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摘要

使用阳极氧化法制备了TiO2/Ti纳米管阵列薄膜材料. TiO2纳米管管孔分布均匀，管径约为80~90nm，平均管长约为1.8μm. 在400℃下煅烧2h后，TiO2纳米管阵列为锐钛矿型，并且结构保持良好，没有出现变形、剥落的现象. 以TiO2/Ti纳米管阵列薄膜材料为光催化剂，同时施加0~+3.0V范围内变化的电场，考察了外加电压对降解亚甲基蓝光电协同效率的影响. 结果表明在外加+1.4V电压的条件下，光电协同效率达到124%. TiO2纳米管阵列与基底Ti板结合牢固，多次重复使用后没有发现降解率的明显变化.

关键词： 阳极氧化; TiO2纳米管阵列; 光电协同; 亚甲基蓝

本文引用格式

陈 怡 , 施利毅 , 袁 帅 , 吴 钧 , 张美红 , 方建慧 . TiO2纳米管阵列薄膜光电协同降解亚甲基蓝的研究[J]. 无机材料学报, 2009 , 24(4) : 680 -684 . DOI: 10.3724/SP.J.1077.2009.00680

Abstract

TiO2 nanotube array material was prepared by anodic oxidation of a pure titanium sheet. The average length and the diameter of the nanotubes were 1.8μm and 80-90nm respectively. After calcination at 400℃ for 2h, the amorphous nanotube walls converted to anatase phase without distortion and collapse. The TiO2 nanotube array material was used as photocatalyst to degrade methylene blue solution under UV light irradiation and UV lightelectric field respectively. The synergetic effects of UV light and electric field on the degradation of methylene blue were investigated by changing the voltage from 0V to +3V. The highest synergetic efficiency of 124% is obtained under +1.4V. The degradation activity of the TiO2 nanotube array material used for several times decreases little, which reveals that the TiO2 nanotube array is adhered to the metal substrate stably.

Key words： anodic oxidation; TiO2 nanotube array; synergetic effect of UV light and electric field; methylene blue

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