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Journal of Nanoparticle Research

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01-04-2014 | Research Paper

Synthesis of octahedral TiO₂ single crystals with {101} facets from solid precursor with N₂H₄ as capping agent

Authors: Hui Jin, Jian Pan, Lianzhou Wang

Published in: Journal of Nanoparticle Research | Issue 4/2014

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Abstract

In this work, N₂H₄ was used as surface-capping agent for the first time to synthesize octahedral anatase TiO₂ single crystals with dominant {101} facets from H_0.68Ti_1.83O₄ solid precursor. The resultant particle size of {101} facet enriched TiO₂ was around 100 nm. The function of N₂H₄ in the hydrothermal process is not only to provide a mild basic environment, but also to promote the growth of {101} surface because of its strong reducibility. The amount of N₂H₄ and precursor added in the solution is also investigated, and the result reveals that nearly 100 % {101} facet can be obtained only if N₂H₄ were added to a certain amount, while the concentration of precursor has no influence on the final result which means that this reaction can be largely scaled up. In oxygen evolution from photocatalytic water splitting, the {101} facets exhibited different performance using AgNO₃ or (NH₄)₂Ce(NO₃)₆ as sacrificial agent.

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Title: Synthesis of octahedral TiO2 single crystals with {101} facets from solid precursor with N2H4 as capping agent
Authors: Hui Jin
Jian Pan
Lianzhou Wang
Publication date: 01-04-2014
Publisher: Springer Netherlands
Published in: Journal of Nanoparticle Research / Issue 4/2014
Print ISSN: 1388-0764
Electronic ISSN: 1572-896X
DOI: https://doi.org/10.1007/s11051-014-2352-z

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