Issue 4, 2012

Preparation of mono-dispersed titanium oxide–octadecylamine hybrid spherical particles in the submicron size range

Abstract

Well-defined titanium oxideoctadecylamine hybrid spherical particles (coefficient of variation (CV) ranged from 4 to 12%) were synthesized by sol–gel reactions with the aid of a flow reactor. The present synthesis consisted of two parts; (1) the initial stage of the reaction, which mainly concerned hydrolysis of titanium tetraisopropoxide (TTIP) and condensation, was conducted in the flow reactor, and then, (2) the solution after passing through the flow reactor was mixed with octadecylamine (ODA) in an aqueous 2-propanol mixture for the growth of titanium oxide–ODA hybrid particles. As for the initial stage, fast flow (2.5 to 40 mL min−1) resulted in the formation of products with narrow particle size distribution (CV 4 to 7%), while slow flow (0.5 mL min−1) led to the polydispersed particle formation (CV 27%) probably due to the growth/aggregation that occurred in the flow reactor. The particle size varied from ca. 70 to 900 nm by varing the composition of the batch reaction (the second step).

Graphical abstract: Preparation of mono-dispersed titanium oxide–octadecylamine hybrid spherical particles in the submicron size range

Supplementary files

Article information

Article type
Paper
Submitted
16 Sep 2011
Accepted
21 Oct 2011
First published
08 Dec 2011

RSC Adv., 2012,2, 1343-1349

Preparation of mono-dispersed titanium oxideoctadecylamine hybrid spherical particles in the submicron size range

K. Shiba, K. Onaka and M. Ogawa, RSC Adv., 2012, 2, 1343 DOI: 10.1039/C1RA00748C

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements