Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 131, Issue 11, Pages 4078-4083Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja808790p
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Funding
- Australian Research Council (ARC)
- UQ Middle Career Research Fellowship
- ARC Centre of Excellence for Functional Nanomaterials
- Scientific Research Foundation from East China University of Science Technology
- Ministry of Science and Technology of China [2009CB220001]
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Owing to wide-ranging industrial applications and fundamental importance, tailored synthesis of well-faceted single crystals of anatase TiO2 With high percentage of reactive facets has attracted much research interest. In this work, high-quality anatase TiO2 single-crystal nanosheets mainly dominated by (001) facets have been prepared by using a water-2-propanol solvothermal synthetic route. The synergistic functions of 2-propanol and HF on the growth of anatase TiO2 single-crystal nanosheets were studied by first-principle theoretical calculations, revealing that the addition of 2-propanol can strengthen the stabilization effect associated with fluorine adsorption over (001) surface and thus stimulate its preferred growth. By measuring the (OH)-O-center dot species with terephthalic acid scavenger, the as-prepared anatase TiO2 single-crystal nanosheets having 64% {001} facets show superior photoreactivity (more than 5 times), compared to P25 as a benchmarking material.
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