Preparation and characterization of porous TiO2-SiO2 mixed oxide

Ang Thiam Peng*, Zhong Ziyi, James Highfield

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

Abstract

A study on the comparison of porous TiO2-SiO2 mixed oxides synthesized variously via the "amine directed" method is reported. The amine capping groups were octylamine, dodecylamine, octyldecylamine, aniline, and isobutylamine. The mixed oxide is characterized by x-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), infrared spectroscopy (IR), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and Brunauer-Emmett- Teller analysis (BET). While XRD, SEM and TEM provide mainly (bulk) structural information on the mixed oxide preparations, BET (N2 physisorption) probes into their surface area and texture. IR evidence suggests that intimate chemical mixing of both oxides has occurred, while BET measurements show that high surface areas are attainable and that the mixed oxide is more thermally stable than pure (control) samples of TiO2.

Original languageEnglish
Article numberFF3.25
Pages (from-to)177-182
Number of pages6
JournalMaterials Research Society Symposium Proceedings
Volume848
StatePublished - 2005
Externally publishedYes
Event2004 Materials Research Society Fall Meeting - Boston, MA, United States
Duration: 29 Nov 20042 Dec 2004

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