One-Pot Hydrothermal Route to Synthesize the Bi-doped Anatase TiO2 Hollow Thin Sheets with Prior Facet Exposed for Enhanced Visible-Light-Driven Photocatalytic Activity
One-Pot Hydrothermal Route to Synthesize the Bi-doped Anatase TiO2 Hollow Thin Sheets with Prior Facet Exposed for Enhanced Visible-Light-Driven Photocatalytic Activity
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一锅水热法合成双掺杂锐钛矿型 TiO2 中空薄片(具有暴露的前刻面以增强可见光驱动的光催化活性)
DOI:
10.1021/acs.iecr.6b00618
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发表时间:
2016-05
影响因子:
4.2
通讯作者:
Liu Xiaoheng
中科院分区:
文献类型:
--
作者:
Wang Weiwei;Zhu Dan;Shen Zhi;Peng Jin;Luo Jie;Liu Xiaoheng
A simple one-pot hydrothermal synthesis route has been employed to fabricate the bismuth-doped (Bi-doped) anatase TiO2 hollow thin sheets with {001} facets exposed. Controlling BiVO4 precursor concentration plays a key role in tuning the morphology and the Bi doping concentration of TiO2 hollow thin sheet catalysts. The photocatalytic activity of as-prepared catalysts was evaluated through the photodegradation of different organic dyes under visible light irradiation (>400 nm), including methylene blue (MB), methyl orange (MO), rhodamine-B (RhB), and p-nitroaniline (PNA). Results showed that the optimal dopant of 0.8 atom % Bi in TiO2 achieved the best photocatalytic activity, especially for possessing a much higher photodegradation of PNA, which could be ascribed to the results of photoinduced charge separation and transfer combined with low bulk recombination of charge carriers. This discussion demonstrates that the design of new TiO2 nanostructures for application in solar energy conversion could be ea...
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