Issue 24, 2022

Solvothermal synthesis of soluble, surface modified anatase and transition metal doped anatase hybrid nanocrystals

Abstract

Titanium dioxide, or titania, is perhaps the most well-known and widely studied photocatalytic material, with myriad applications, due to a high degree of tunability achievable through the incorporation of dopants and control of phase composition and particle size. Many of the applications of titanium dioxide require particular forms, such as gels, coatings, or thin films, making the development of hybrid solution processable nanoparticles increasingly attractive. Here we report a simple solvothermal route to highly dispersible anatase phase titanium dioxide hybrid nanoparticles from amorphous titania. Solvothermal treatment of the amorphous titania in trifluoroacetic acid leads to the formation of anatase phase nanoparticles with a high degree of size control and near complete surface functionalisation. This renders the particles highly dispersible in simple organic solvents such as acetone. Dopant ions may be readily incorporated into the amorphous precursor by co-precipitation, with no adverse effect on subsequent crystallisation and surface modification.

Graphical abstract: Solvothermal synthesis of soluble, surface modified anatase and transition metal doped anatase hybrid nanocrystals

Article information

Article type
Paper
Submitted
18 set 2022
Accepted
03 nov 2022
First published
11 nov 2022
This article is Open Access
Creative Commons BY license

Nanoscale Adv., 2022,4, 5343-5354

Solvothermal synthesis of soluble, surface modified anatase and transition metal doped anatase hybrid nanocrystals

A. S. Bathe, A. Sanz Arjona, A. Regan, C. Wallace, C. R. Nerney, N. O'Donoghue, J. M. Crosland, T. Simonian, R. I. Walton and P. W. Dunne, Nanoscale Adv., 2022, 4, 5343 DOI: 10.1039/D2NA00640E

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