The effect of ionic charge on the adsorption of organic dyes onto titanate nanotubes


Bavykin, D.V., Redmond, K.E., Nias, B.P., Kulak, A.N. and Walsh, F.C. (2010) The effect of ionic charge on the adsorption of organic dyes onto titanate nanotubes. Australian Journal of Chemistry, 63, (2), 270-275. (doi:10.1071/CH09326).

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Original Publication URL: http://dx.doi.org/10.1071/CH09326

Description/Abstract

The adsorption of dye molecules from aqueous solution onto the surface of titanate nanotubes (which have been synthesized by an alkaline hydrothermal treatment) has been studied. The ionic charge on the dye molecules was found to affect their ability to adsorb onto the titanate nanotube surface. In case of (cationic) methylene blue, the adsorption was favourable on the negatively charged surface of titanate nanotubes rather than on positively charged P25 TiO2 nanoparticles. In case of (anionic) eriochrome black T dye, the opposite trend was found. The dynamics of dye adsorption and the effect of pH on the adsorption capacity are considered.

Item Type: Article
ISSNs: 0004-9425 (print)
Related URLs:
Subjects: T Technology > TP Chemical technology
Q Science > QD Chemistry
Q Science > QC Physics
Divisions: University Structure - Pre August 2011 > School of Engineering Sciences > Engineering Materials & Surface Engineering
ePrint ID: 73060
Date Deposited: 02 Mar 2010
Last Modified: 28 Mar 2014 15:18
Projects:
The hydrothermal route to metal oxide nanotubes: synthesis and energy conversion application. A First Grant Proposal
Funded by: EPSRC (EP/F044445/1)
Led by: Dmitry V. Bavykin
15 September 2008 to 14 September 2010
URI: http://eprints.soton.ac.uk/id/eprint/73060

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