TiO2 nanosheets synthesized by atomic layer deposition for photocatalysis

Two-dimensional TiO2 nanosheets were synthesized by atomic layer deposition（ALD） on dissolvable sacrificial polymer layer. The photocatalytic performance of free-standing TiO2 nanosheets prepared with different numbers of ALD cycles（100, 300, 500, and 1000） were investigated by evaluating the degrad...

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Bibliographic Details
Published in:Progress in natural science 2016-10, Vol.26 (5), p.493-497
Main Authors: Edy, Riyanto, Zhao, Yuting, Huang, Gaoshan S., Shi, Jianjun J., Zhang, Jing, Solovev, Alexander A., Mei, Yongfeng
Format: Article
Language:English
Subjects:
Atomic layer deposition
Nanosheet
Photocatalysis
TiO2
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Summary:Two-dimensional TiO2 nanosheets were synthesized by atomic layer deposition（ALD） on dissolvable sacrificial polymer layer. The photocatalytic performance of free-standing TiO2 nanosheets prepared with different numbers of ALD cycles（100, 300, 500, and 1000） were investigated by evaluating the degradation rates of methyl orange solutions. It is shown that the photocatalytic activity increases due to Ti3+ defect and the locally ordered structures in amorphous TiO2 nanosheets. The difference in the surface areas of nanosheets may also play a crucial role in the photocatalytic activity. The results obtained in this work can have potential applications in fields like water splitting and dye-sensitized solar cells.
ISSN:1002-0071
DOI:10.1016/j.pnsc.2016.08.010