Preparation of TiO2 aerogels by a sol-gel combined solvothermal route

Zhongqiang Zhao; Xiuling Jiao; Dairong Chen

doi:10.1039/B819849G

You do not have JavaScript enabled. Please enable JavaScript to access the full features of the site or access our non-JavaScript page.

Preparation of TiO₂ aerogels by a sol-gel combined solvothermal route†

Zhongqiang Zhao,^a Xiuling Jiao^a and Dairong Chen*^a

Author affiliations

* Corresponding authors

^a Key Laboratory for Special Functional Aggregate Materials, Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, People's Republic of China
E-mail: cdr@sdu.edu.cn
Fax: +86-0531-88364281
Tel: +86-0531-88364280

Abstract

TiO₂ (anatase) aerogels with high surface area were prepared through solvothermally treating the TiO₂ based wet-gels prepared by the sol-gel method, followed by atmosphere-drying to remove the solvents from the gels. This route provided a new strategy for the preparation of crystalline metal oxide aerogels. The microstructure of the aerogel was studied in detail. The aerogels solvothermally treated at 140 °C exhibited a high BET surface area of 528.9 m²/g. All the aerogels showed extensive photoluminescent emission at 467, 555 and 615 nm, whose intensity decreased with the solvothermal temperature increasing and significantly increased after calcinations.

Download options Please wait...

Supplementary files

Photographs and HR-TEM images of wet-gels, HR-TEM images ofthe aerogel obtained from the gel without solvothermal treatment,HR-TEM images and IR spectra of the calcined aerogels, XRD patternsof the aerogels before and after calcination. PDF (2176K)

Article information

DOI: https://doi.org/10.1039/B819849G
Article type: Paper
Submitted: 06 Nov 2008
Accepted: 24 Feb 2009
First published: 23 Mar 2009

Download Citation

J. Mater. Chem., 2009,19, 3078-3083

Permissions

Request permissions

Preparation of TiO₂ aerogels by a sol-gel combined solvothermal route

Z. Zhao, X. Jiao and D. Chen, J. Mater. Chem., 2009, 19, 3078 DOI: 10.1039/B819849G

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.

Fetching data from CrossRef.
This may take some time to load.

Journal of Materials Chemistry