TITLE

Chemical Tuning of Adsorption Properties of Titanate Nanotubes

AUTHOR(S)
Grigorieva, Anastasia V.; Yuschenko, Valentina V.; Ivanova, Irina I.; Goodilin, Eugene A.; Tretyakov, Yuri D.
PUB. DATE
January 2012
SOURCE
Journal of Nanomaterials;2012, p1
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A conventional hydrothermal method widely used for the preparation of titania-based nanotubes still generates many unsolved questions. One of them is definitely connected with the influence of a posthydrothermal treatment of titania nanotubes on their micromorphology, structure, and adsorption characteristics. Here, it was analyzed systematically by a group of methods including nitrogen adsorption and temperature-programmed desorption of ammonia and carbon dioxide. It is proved that adsorption characteristics and the surface state of titania nanotubes correlate with a sodium content, since sodium ions act as Lewis acid sites and shield Ti4+ acid sites of the nanotubes. To obey a balance between chemical and heat treatments of the nanotubes to design their functional properties has been suggested.
ACCESSION #
84999746

 

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