Fabrication of macro–mesoporous titania/alumina core–shell materials in oil/water interface
Liu, Erming, Vezzoli, Massimiliano, Locke, Ashley J., Frost, Ray L., & Martens, Wayde N. (2014) Fabrication of macro–mesoporous titania/alumina core–shell materials in oil/water interface. Journal of Colloid and Interface Science, 436, pp. 194-203.
A series of macro–mesoporous TiO2/Al2O3 nanocomposites with different morphologies were synthesized. The materials were calcined at 723 K and were characterized by X-ray diffraction (XRD), Scanning electron microscopy (SEM), Transmission electron microscope (TEM), N2 adsorption/desorption, Infrared Emission Spectroscopy (IES), X-ray photoelectron spectroscopy (XPS) and UV–visible spectroscopy (UV–visible). A modified approach was proposed for the synthesis of 1D (fibrous) nanocomposite with higher Ti/Al molar ratio (2:1) at lower temperature (<100 °C), which makes it possible to synthesize such materials on industrial scale. The performance–morphology relationship of as-synthesized TiO2/Al2O3 nanocomposites was investigated by the photocatalytic degradation of a model organic pollutant under UV irradiation. The samples with 1D (fibrous) morphology exhibited superior catalytic performance than the samples without, such as titania microspheres.
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|Item Type:||Journal Article|
|Keywords:||Photocatalyst, Fibrous catalyst, Core-shell nanocomposite, Hierarchical nanostructure, Oil/water interface|
|Divisions:||Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Schools > School of Civil Engineering & Built Environment
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 2014 Elsevier Inc.|
|Deposited On:||17 Apr 2015 01:56|
|Last Modified:||24 Aug 2016 00:11|
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