Structure-tunable Synthesis and Structural Stabilities of the Multilayered Titanate Nanotube Thin Films Grown on Titanium Metal Surface

doi:10.3969/j.issn.0251-0790.2012.02.003

Abstract

Abstract: Multilayered titanate nanotube thin films were grown on titanium metal surface via a hydrothermal surface treatment process. A general formation mechanism for oriented titanate nanotube thin film was proposed on the basis of detailed SEM and TEM observation of the products. The overall formation of titanate nanotube can be summarized as a sequence of four steps: (1) titanium dissolution and alkali titanate hydrogel formation; (2) alkali titanate hydrogel dissolution and layered Na₂Ti₃O₇ formation; (3) layered Na₂Ti₃O₇ growth; (4) nanotube formation via Na₂Ti₃O₇ splitting and the multilayer scrolling process. The effects of post-treatment conditions on the film morphology and stability were examined. The layer-delaminating of multilayered titanate nanotube thin films were obtained after ultrasonic treatment.

Key words: Titanate nanotube, Multilayered thin film, Stability

CLC Number:

O614.4

TrendMD:

PAN Yan, GUO Yu-Peng, SONG Wen-Bo, LIU Zhi-Hui. Structure-tunable Synthesis and Structural Stabilities of the Multilayered Titanate Nanotube Thin Films Grown on Titanium Metal Surface[J]. Chem. J. Chinese Universities, 2012, 33(02): 225.

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