Issue 10, 2012
From the journal:

CrystEngComm

Controlling anatase coating of diatom frustules by varying the binding layer†

Jeremiah Toster,a   Catalin Harnagea,b   K. Swaminathan Iyer,a   Federico Roseib  and  Colin L. Raston*a  

* Corresponding authors

a Centre for Strategic Nano-fabrication, School of Chemistry and Biochemistry, University Of Western Australia, Crawley, WA-6009, Australia
E-mail: colin.raston@uwa.edu.au
Fax: +08 6488 8683
Tel: +08 6488 3045

b Institut National de la Recherche Scientifique, Université du Quebec, 1650 Boul. Lionel Boulet, Varennes, QC, Canada
E-mail: rosei@emt.inrs.ca
Fax: +1 (450) 929 8102
Tel: +1 (514) 228 8246

Abstract

Diatoms have ordered three dimensional porous exoskeletons (frustules) comprised primarily of amorphous silica which can be used as templates for materials applications. Hydrolysis of titanium(IV) isopropoxide (TIP) in the presence of surface bound poly(4-vinyl pyridine) or citric acid results in the formation of anatase on the surface after calcining at 450 °C, however as shown with atomic force microscopy (AFM), different morphologies are formed. Citric acid preferentially resulted in a thin film of anatase over the surface of the frustule whereas poly(4-vinyl pyridine) resulted in the formation of nano-particles of anatase (90–100 nm) on the surface.

Graphical abstract: Controlling anatase coating of diatom frustules by varying the binding layer

About
Cited by
Related
Download options Please wait...

Supplementary files

Article information

DOI
https://doi.org/10.1039/C2CE06648C
Article type
Paper
Submitted
09 Dec 2011
Accepted
09 Mar 2012
First published
12 Mar 2012

CrystEngComm, 2012,14, 3446-3450

Permissions

Request permissions

Controlling anatase coating of diatom frustules by varying the binding layer

J. Toster, C. Harnagea, K. Swaminathan Iyer, F. Rosei and C. L. Raston, CrystEngComm, 2012, 14, 3446 DOI: 10.1039/C2CE06648C

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