Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 3, Issue 44, Pages 22073-22080Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ta05654c
Keywords
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Funding
- National Natural Science Foundation of China [21207148]
- National Basic Research Program of the PRC [2011CB936001]
- National Key Technology RD Program [2012BAC07B02]
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Structure-maneuvering and impurity element-doping are considered two of the most effective ways to enhance the photocatalytic activity of TiO2 catalysts. A facile solvothermal strategy was developed to simultaneously realize these two superiorities. The experimental results reveal that the as-prepared TiO2 exhibits a three-dimensional mesoporous hierarchical superstructure self-assembled by ultrathin nanosheets, which endows the product with a high surface area (similar to 240 m(2) g(-1)) and abundant mesopores resulting in high adsorption capacity for pollutant molecules and high absorption ability for incoming light. N doping and concomitant Ti3+ incorporation systematically account for reduction of the bandgap and thus realize vis-photocatalytic activity. As expected, the as-prepared TiO2 catalyst exhibits good photocatalytic activity under visible light irradiation.
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