A highly active bi-crystalline photocatalyst consisting of TiO2 (B) nanotube and anatase particle for producing H-2 gas from neat ethanol

作者：Kuo Huang Lin; Kuo Chih Yin; Liu Chun Hsuan; Chao Jiunn Hsing; Lin Chiu Hsun^*

来源：Catalysis Letters, 2007, 113(1-2): 7-12.

DOI：10.1007/s10562-006-9009-1

• sodium titanate nanotube
• TiO2 ( B) nanotube
• photocatalytic dehydrogenation
• ethanol
• hydrogen

Sodium titanate nanotubes (NaTNTs) are converted into monoclinic TiO2 (B) nanotubes by rinsing with 0.10 M HCl followed by drying at 573 K. As calcination temperature is increased to 673 K, these TiO2 (B) nanotubes start to transform into anatase nanoparticles producing a bi-crystalline mixture consisting of TiO2 (B) nanotubes and anatase nanoparticles. The primary particle size of the anatase particles was estimated to be around 10 nm using Scherrer equation. After being promoted with 1% Pt, this bi-crystalline material becomes a very active photocatalyst producing 20% more H-2 gas than 1% Pt/Degussa P-25 TiO2 in the photocatalytic dehydrogenation of neat ethanol after 2 h of UV light irradiation.

• 出版日期2007-1
• 单位清华大学