Jump to main content
Jump to site search

Issue 76, 2015
Previous Article Next Article

Scaffold-assisted synthesis of crystalline mesoporous titania materials

Author affiliations


This work explores the scaffold-assisted synthesis of titania materials, in which the scaffold protects the titania's mesostructure during the calcination-induced crystallization that normally leads to its collapse. Two scaffold materials were examined: silica and alumina. The scaffolds were delivered either: (1) in the form of nanoparticles: Nanosol 3014D colloidal silica or Catapal A boehmite; or (2) through hydrolysis and condensation of suitable precursors: tetraethyl orthosilicate or aluminum isopropoxide. Titania was prepared by hydrolysis and condensation of titanium isopropoxide under acidic conditions, resulting in 4–8 nm TiO2 nanoparticles aggregated into mesoporous structures. Incorporation of even 10 wt% of the scaffold resulted in a substantial improvement of the structural properties and the higher scaffold amounts yielded even better results. It is shown that the structural properties of titania depend on the scaffold's structure: the nanoparticle-composed scaffolds are condensed and more suitable for development of large pore volume, whereas the precursor-generated scaffolds are more dispersed and better for achieving titania with large surface area. The final titania materials are crystalline (almost or exclusively anatase phase, depending on the scaffold) and possess a specific surface area reaching 260 m2 g−1 and pore volume reaching 0.60 cm3 g−1.

Graphical abstract: Scaffold-assisted synthesis of crystalline mesoporous titania materials

Back to tab navigation

Supplementary files

Article information

28 May 2015
10 Jul 2015
First published
10 Jul 2015

RSC Adv., 2015,5, 61960-61972
Article type

Scaffold-assisted synthesis of crystalline mesoporous titania materials

M. Marszewski and M. Jaroniec, RSC Adv., 2015, 5, 61960
DOI: 10.1039/C5RA10139E

Social activity

Search articles by author