Acid transformation of TiO2 nanotubes to nanoparticles


Bavykin, D. V., Lapkin, A. A., Friedrich, J. M. and Walsh, F. C., 2005. Acid transformation of TiO2 nanotubes to nanoparticles. NSTI Nanotech 2005, NSTI Nanotechnology Conference & Trade Show, 2, pp. 655-658.

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The long-term stability of TiO2 nanotubes in acid, neutral and basic water suspensions was studied at room temp. In neutral and basic (0.1 M NaOH) solns., the TiO2 nanotubes are stable and undergo minimal morphol. changes. In dil. solns. of 0.1M H2SO4, suspended TiO2 nanotubes slowly transform to rutile nanoparticles having an ellipsoid shape. The porosity and crystal structure of TiO2 are also changed during the transformation. The rate of conversion of nanotubes to nanoparticles depends on the nature of the acid and is high in the case of sulfuric acid. Thermodn. and kinetic aspects of the acid transformation are discussed. [on SciFinder (R)]


Item Type Articles
CreatorsBavykin, D. V., Lapkin, A. A., Friedrich, J. M. and Walsh, F. C.
Uncontrolled Keywordszeta potential (acid transformation of tio2 nanotubes to nanoparticles),thermodynamics,bases role,surface area,pore size distribution,porosity,stability,nanoparticles,proc (process) (acid transformation of tio2 nanotubes to nanoparticles),reaction kinetics,crystal structure-property relationship,nanotubes,acids,acid transformation of titania nanotube nanoparticle,pep (physical,cps (chemical process),engineering or chemical process)
DepartmentsFaculty of Engineering & Design > Chemical Engineering
ID Code928


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