Chemical Industry and Engineering Progress ›› 2017, Vol. 36 ›› Issue (11): 4051-4056.DOI: 10.16085/j.issn.1000-6613.2017-0216

Previous Articles     Next Articles

Progress of photocatalytic water splitting for hydrogen production over TiO2 nanotube composite materials

LIANG Kexin, XU Yunfei, XU Peiyao, TAN Yu, ZHANG Shenghan   

  1. Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, Hebei, China
  • Received:2017-02-14 Revised:2017-06-30 Online:2017-11-05 Published:2017-11-05

复合TiO2纳米管材料光催化裂解水产氢研究进展

梁可心, 徐芸菲, 许佩瑶, 檀玉, 张胜寒   

  1. 华北电力大学环境科学与工程系, 河北 保定0710003
  • 通讯作者: 梁可心(1981-),女,工程师,博士,主要从事纳米材料光电化学研究。
  • 作者简介:梁可心(1981-),女,工程师,博士,主要从事纳米材料光电化学研究。E-mail:kexin91802@163.com。
  • 基金资助:
    河北省自然科学基金青年基金(E2016502065)及中英高校基本科研业务费项目。

Abstract: Photocatalytic splitting water to product the clean hydrogen has become a hot research topic. The progress of TiO2 nanotubes and their modification techniques in photocatalytic water splitting for hydrogen production is reviewed. The surface morphologies of TiO2 nanotube arrays play a very important role in promoting the efficiency of photocatalytic hydrogen production. The hydrogen production rate of highly structured TiO2 nanotube arrays prepared by two-step or multi-step electrochemical anodic oxidation is higher than those prepared by one-step anodic oxidation. Non-metallic elements doped TiO2 nanotubes can reduce the energy band gap and the introduction of excited electrons from the sensitized dye into TiO2 nanotubes conduction band can make the absorption spectra redshift. Doped metal ions can effectively promote the electron-hole separation rate of TiO2 nanotubes. TiO2 nanotubes doped with narrow band gap semiconductor compounds can not only make the absorption spectra redshift, but also effectively separate electron-hole pairs. These methods can effectively improve the efficiency of hydrogen production. A research priority of splitting water for hydrogen production can be placed on the combination of multi-methods to dope TiO2 nanotubes catalysts.

Key words: TiO2 nanotubes, catalysis, photochemistry, splitting water, hydrogen production

摘要: 光催化裂解水是目前制取清洁能源氢气的热点研究方向。本文简述了TiO2纳米管及其掺杂改性技术在光催化裂解水制氢领域的发展。分析表明TiO2纳米管阵列的表面形貌对光催化产氢的效率方面起着非常重要的作用,采用两步或多步电化学阳极氧化制备的高度规整的TiO2纳米管表现出比一步阳极氧化制备的TiO2纳米管更高的产氢效率。非金属元素掺杂TiO2纳米管、能带宽度减小、染料敏化向TiO2纳米管导带注入激发电子,都能促使吸收光红移。掺杂金属离子能有效促使TiO2纳米管电子-空穴对分离。TiO2纳米管同窄能带的半导体复合使其吸收光红移,同时能有效地分离电子-空穴对。这些方法都能有效提高产氢效率。最后评述了将多种修饰方法有机结合起来制备催化剂是目前裂解水制氢的一个重点研究方向。

关键词: TiO2纳米管, 催化, 光化学, 裂解水, 制氢

CLC Number: 

京ICP备12046843号-2;京公网安备 11010102001994号
Copyright © Chemical Industry and Engineering Progress, All Rights Reserved.
E-mail: hgjz@cip.com.cn
Powered by Beijing Magtech Co. Ltd