Publication detail

Water-dispersible TiO2 nanoparticles via a biphasic solvothermal reaction method

MOHAN, R. DRBOHLAVOVÁ, J. HUBÁLEK, J.

Original Title

Water-dispersible TiO2 nanoparticles via a biphasic solvothermal reaction method

Type

journal article in Web of Science

Language

English

Original Abstract

A biphasic solvothermal reaction method has been used for the synthesis of TiO2 nanoparticles (NPs). In this method, hydrolysis and nucleation occur at the interface of organic phase (titanium (IV) n-propoxide and stearic acid dissolved in toluene) and water phase (tert-butylamine dissolved in water) resulting in the nucleation of the stearic acid-capped TiO2 NPs. These NPs are hydrophilic due to hydrophobic stearic acid ligands and could be dispersed in toluene, but not in water. These stearic acid-capped TiO2 NPs were surface-modified with 2,3-dimercaptosuccinic acid (DMSA) in order to make them water soluble. The resultant TiO2 NPs were easily redispersed in water without any noticeable aggregation. The Rietveld profile fitting of X-ray diffraction (XRD) pattern of the TiO2 NPs revealed highly crystalline anatase structure. The average crystallite size of TiO2 NPs was calculated to be 6.89 nm, which agrees with TEM results. These results have important implications for the use of TiO2 in biomedical, environmental, and industrial applications.

Keywords

TiO2; X-ray diffraction; UV-vis absorption; Fluorescence spectra

Authors

MOHAN, R.; DRBOHLAVOVÁ, J.; HUBÁLEK, J.

RIV year

2013

Released

1. 12. 2013

Publisher

Springer

Location

Spolková republika Německo

ISBN

1931-7573

Periodical

Nanoscale Research Letters

Year of study

2013

Number

8

State

United States of America

Pages from

1

Pages to

4

Pages count

4

URL

https://nanoscalereslett.springeropen.com/articles/10.1186/1556-276X-8-503

Full text in the Digital Library

http://hdl.handle.net/11012/137447

BibTex

@article{BUT103910,
  author="Rajneesh {Mohan} and Jana {Drbohlavová} and Jaromír {Hubálek}",
  title="Water-dispersible TiO2 nanoparticles via a biphasic solvothermal reaction method",
  journal="Nanoscale Research Letters",
  year="2013",
  volume="2013",
  number="8",
  pages="1--4",
  doi="10.1186/1556-276X-8-503",
  issn="1931-7573",
  url="https://nanoscalereslett.springeropen.com/articles/10.1186/1556-276X-8-503"
}