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New method to synthesize mesoporous titania by photodegradation of surfactant template

Zi, Shamsuddin Chik and Chandren, Sheela and Yuan, Lai Sin and Razali, Rasidah and Ho, Chin Siong and Hartanto, Djoko and Mahlia, Teuku Meurah Indra and Nur, Hadi (2016) New method to synthesize mesoporous titania by photodegradation of surfactant template. Solid State Sciences, 52 . pp. 83-91. ISSN 1293-2558

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Official URL: http://dx.doi/org/10.1016/j.solidstatesciences.201...

Abstract

Mesoporous titania has been successfully synthesized by photodegradation removal of cetyltrimethylammonium bromide as the surfactant, after slow hydrolyzation of titanium(IV) isopropoxide. Fourier transform infrared spectra proved that photodegradation has successfully decreased the peak areas of the alkyl groups from the template. The nitrogen adsorption analysis showed that the pore size and the specific surface area of the mesoporous titania were 3.7 nm and 203 m2 g-1, respectively, proving the mesoporosity of the titania obtained with the existence of the interparticle mesoporosity which was confirmed by transmission electron microscopy. Based on X-ray diffraction results, the mesoporous titania obtained was in the form of crystalline anatase phase. Furthermore, results from the diffuse reflectance ultra violet-visible spectra showed that the composition of tetrahedral titanium(IV) was more than the octahedral titanium(IV). When the mesoporous titania obtained was used as a catalyst in the oxidation of styrene, an improvement in the conversion of styrene (38%) was observed when compared to those obtained using Degussa P25 TiO2 (14%) as the catalyst.

Item Type:Article
Uncontrolled Keywords:mesoporous titania, oxidation of styrene, photodegradation
Subjects:Q Science > QD Chemistry
Divisions:Built Environment
ID Code:70054
Deposited By: Narimah Nawil
Deposited On:22 Nov 2017 08:45
Last Modified:22 Nov 2017 08:45

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