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

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Abstract

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 H2 gas than 1% Pt/Degussa P-25 TiO2 in the photocatalytic dehydrogenation of neat ethanol after 2 h of UV light irradiation.

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Acknowledgments

C.-H. Lin is grateful for a grant from Nation Science Council of Taiwan (NSC-93-2113-M-018-006) and Miss Ya-Shun Lin of National ChungHsing University for the technical assistance in FE-SEM.

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Authors and Affiliations

  1. Department of Chemistry, National Changhua University of Education, Changhua, 500, Taiwan, ROC

    Huang-Lin Kuo, Chih-Yin Kuo, Chun-Hsuan Liu & Chiu-Hsun Lin

  2. Nuclear Science and Technology Development Center, National Tsing Hua University, Hsinchu, 300, Taiwan, ROC

    Jiunn-Hsing Chao

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  1. Huang-Lin Kuo
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  2. Chih-Yin Kuo
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  3. Chun-Hsuan Liu
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  4. Jiunn-Hsing Chao
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  5. Chiu-Hsun Lin
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Correspondence to Chiu-Hsun Lin.

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Kuo, HL., Kuo, CY., Liu, CH. et al. A highly active bi-crystalline photocatalyst consisting of TiO2 (B) nanotube and anatase particle for producing H2 gas from neat ethanol. Catal Lett 113, 7–12 (2007). https://doi.org/10.1007/s10562-006-9009-1

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