Effects of hydrothermal post-treatment on microstructures and morphology of titanate nanoribbons

Journal Article · Wed Feb 15 04:00:00 EST 2006 · Journal of Solid State Chemistry

OSTI ID:20784869

Huogen, Yu ^[1]; Jiaguo, Yu ^[1]; Bei, Cheng ^[1]; Minghua, Zhou ^[1]

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1. State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070 (China)

Titanate nanoribbons were prepared via a hydrothermal treatment of rutile-type TiO{sub 2} powders in a 10 M NaOH solution at 200 deg. C for 48 h. The as-prepared titanate nanoribbons were then hydrothermally post-treated at 150 deg. C for 12-36 h. The titanate nanoribbons before and after hydrothermal post-treatment were characterized with FESEM, XRD, TEM, UV-VIS and nitrogen adsorption-desorption isotherms. The results showed that the hydrothermal post-treatment not only promoted the phase transformation from titanate to anatase TiO{sub 2}, but also was beneficial to the removal of Na{sup +} ions remained in the titanate nanoribbons. After hydrothermal post-treatment, the TiO{sub 2} samples retained the one-dimensional structure feature of the titanate nanoribbons and showed an obvious increase in the specific surface area and the pore volume.

• OSTI ID: 20784869
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 2 Vol. 179; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
ADSORPTION
DESORPTION
MICROSTRUCTURE
NANOSTRUCTURES
PHASE TRANSFORMATIONS
RUTILE
SODIUM HYDROXIDES
SPECIFIC SURFACE AREA
TEMPERATURE RANGE 0400-1000 K
TITANATES
TITANIUM OXIDES
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION