A highly active bi-crystalline photocatalyst consisting of TiO2 (B) nanotube and anatase particle for producing H2 gas from neat ethanol

被引：109

作者：

Kuo, Huang-Lin

Kuo, Chih-Yin

Liu, Chun-Hsuan

Chao, Jiunn-Hsing

Lin, Chiu-Hsun ^{[1
]}

机构：

[1] Natl Changhua Univ Educ, Dept Chem, Changhua 500, Taiwan

[2] Natl Tsing Hua Univ, Nucl Sci & Technol Dev Ctr, Hsinchu 300, Taiwan

来源：

CATALYSIS LETTERS | 2007年 / 113卷 / 1-2期

关键词：

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

D O I：

10.1007/s10562-006-9009-1

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页码：7 / 12

页数：6

共 27 条

[1] PHOTOCATALYTIC HYDROGENATION OF CH3CCH WITH H2O ON SMALL-PARTICLE TIO2 - SIZE QUANTIZATION EFFECTS AND REACTION INTERMEDIATES [J].