Facile preparation of monodisperse, carbon doped single crystal rutile TiO2 nanorod spheres with a large percentage of reactive (110) facet exposure for highly efficient H2 generation

Hongwei Bai, Zhaoyang Liu, Darren Delai Sun

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

For the first time, a facile calcination method derived from the resorcinol and formaldehyde reaction was used to prepare monodisperse, carbon doped single crystal TiO2 nanorod spheres instead of the conventional hydrothermal method. The spheres are made of single crystal TiO2 nanorods with a large percentage (95%) of rutile (110) facets, which show an interesting hierarchical structure, favoring the improvement of photocatalytic activity. The TiO2 nanorod spheres exhibit a higher photodegradation ability of AO 7 and phenol in comparison to commercial TiO2 P25. In a methanol-water sacrificial reagent system in the presence of Cu2+, the TiO2 nanorod spheres demonstrate strong ability to simultaneously recover Cu2+ and generate H2 under UV light irradiation. Because of the comprehensive effects from its uniform exposure of highly active (110) facets, carbon doping, better light absorbing ability, larger specific surface area, and suppression of the recombination of electrons and holes, the TiO2 nanorod spheres display a higher H2 generation rate than most already reported semiconductor catalysts. More importantly, the TiO2 nanorod spheres are promising for clean energy generation and contaminant elimination owing to the fact they can be facilely prepared in a large-scale manner for practical applications.

Original languageEnglish
Pages (from-to)18801-18807
Number of pages7
JournalJournal of Materials Chemistry
Volume22
Issue number36
DOIs
Publication statusPublished - 28 Sep 2012
Externally publishedYes

Fingerprint

Nanorods
Carbon
Single crystals
Photodegradation
Phenol
Formaldehyde
Specific surface area
Ultraviolet radiation
Calcination
Phenols
Methanol
titanium dioxide
Doping (additives)
Irradiation
Impurities
Semiconductor materials
Catalysts
Electrons
Water

ASJC Scopus subject areas

  • Materials Chemistry
  • Chemistry(all)

Cite this

@article{695f787946c74e1ab3571449eeda3d0a,
title = "Facile preparation of monodisperse, carbon doped single crystal rutile TiO2 nanorod spheres with a large percentage of reactive (110) facet exposure for highly efficient H2 generation",
abstract = "For the first time, a facile calcination method derived from the resorcinol and formaldehyde reaction was used to prepare monodisperse, carbon doped single crystal TiO2 nanorod spheres instead of the conventional hydrothermal method. The spheres are made of single crystal TiO2 nanorods with a large percentage (95{\%}) of rutile (110) facets, which show an interesting hierarchical structure, favoring the improvement of photocatalytic activity. The TiO2 nanorod spheres exhibit a higher photodegradation ability of AO 7 and phenol in comparison to commercial TiO2 P25. In a methanol-water sacrificial reagent system in the presence of Cu2+, the TiO2 nanorod spheres demonstrate strong ability to simultaneously recover Cu2+ and generate H2 under UV light irradiation. Because of the comprehensive effects from its uniform exposure of highly active (110) facets, carbon doping, better light absorbing ability, larger specific surface area, and suppression of the recombination of electrons and holes, the TiO2 nanorod spheres display a higher H2 generation rate than most already reported semiconductor catalysts. More importantly, the TiO2 nanorod spheres are promising for clean energy generation and contaminant elimination owing to the fact they can be facilely prepared in a large-scale manner for practical applications.",
author = "Hongwei Bai and Zhaoyang Liu and Sun, {Darren Delai}",
year = "2012",
month = "9",
day = "28",
doi = "10.1039/c2jm32410e",
language = "English",
volume = "22",
pages = "18801--18807",
journal = "Journal of Materials Chemistry",
issn = "0959-9428",
publisher = "Royal Society of Chemistry",
number = "36",

}

TY - JOUR

T1 - Facile preparation of monodisperse, carbon doped single crystal rutile TiO2 nanorod spheres with a large percentage of reactive (110) facet exposure for highly efficient H2 generation

AU - Bai, Hongwei

AU - Liu, Zhaoyang

AU - Sun, Darren Delai

PY - 2012/9/28

Y1 - 2012/9/28

N2 - For the first time, a facile calcination method derived from the resorcinol and formaldehyde reaction was used to prepare monodisperse, carbon doped single crystal TiO2 nanorod spheres instead of the conventional hydrothermal method. The spheres are made of single crystal TiO2 nanorods with a large percentage (95%) of rutile (110) facets, which show an interesting hierarchical structure, favoring the improvement of photocatalytic activity. The TiO2 nanorod spheres exhibit a higher photodegradation ability of AO 7 and phenol in comparison to commercial TiO2 P25. In a methanol-water sacrificial reagent system in the presence of Cu2+, the TiO2 nanorod spheres demonstrate strong ability to simultaneously recover Cu2+ and generate H2 under UV light irradiation. Because of the comprehensive effects from its uniform exposure of highly active (110) facets, carbon doping, better light absorbing ability, larger specific surface area, and suppression of the recombination of electrons and holes, the TiO2 nanorod spheres display a higher H2 generation rate than most already reported semiconductor catalysts. More importantly, the TiO2 nanorod spheres are promising for clean energy generation and contaminant elimination owing to the fact they can be facilely prepared in a large-scale manner for practical applications.

AB - For the first time, a facile calcination method derived from the resorcinol and formaldehyde reaction was used to prepare monodisperse, carbon doped single crystal TiO2 nanorod spheres instead of the conventional hydrothermal method. The spheres are made of single crystal TiO2 nanorods with a large percentage (95%) of rutile (110) facets, which show an interesting hierarchical structure, favoring the improvement of photocatalytic activity. The TiO2 nanorod spheres exhibit a higher photodegradation ability of AO 7 and phenol in comparison to commercial TiO2 P25. In a methanol-water sacrificial reagent system in the presence of Cu2+, the TiO2 nanorod spheres demonstrate strong ability to simultaneously recover Cu2+ and generate H2 under UV light irradiation. Because of the comprehensive effects from its uniform exposure of highly active (110) facets, carbon doping, better light absorbing ability, larger specific surface area, and suppression of the recombination of electrons and holes, the TiO2 nanorod spheres display a higher H2 generation rate than most already reported semiconductor catalysts. More importantly, the TiO2 nanorod spheres are promising for clean energy generation and contaminant elimination owing to the fact they can be facilely prepared in a large-scale manner for practical applications.

UR - http://www.scopus.com/inward/record.url?scp=84865263547&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84865263547&partnerID=8YFLogxK

U2 - 10.1039/c2jm32410e

DO - 10.1039/c2jm32410e

M3 - Article

AN - SCOPUS:84865263547

VL - 22

SP - 18801

EP - 18807

JO - Journal of Materials Chemistry

JF - Journal of Materials Chemistry

SN - 0959-9428

IS - 36

ER -