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ToolsLuo, Mingliang, Bowden, Derek and Brimblecombe, Peter (2009) Preparation of black sand-based magnetic photocatalysts for photocatalytic oxidation of aqueous phenol. Applied Catalysis B: Environmental, 87 (1-2). pp. 1-8.
Full text not available from this repository. (Request a copy)Abstract
A natural magnetic material, black sand, was used as cores to prepare a magnetic photocatalyst, which can be recovered using an external magnetic field. A surfactant-involved scheme was proposed to deposit a rough silica layer on the surface of black sand, which otherwise could not be coated with silica through a conventional scheme involving Stöber process. Titanium dioxide (TiO2) was deposited on the surface of the silica-black sand (Si/BS) through an impregnation process and a direct deposition process. The catalytic property of the resultant photocatalyst (Ti/Si/BS) was evaluated using the oxidation of aqueous phenol and exhibited less reactivity than Degussa P25 TiO2. The phenol removal efficiency showed a pH dependence, which was ascribed to pH effect on (a) the formation of *OH and (b) the electrostatic interaction between the photocatalyst and the substrate. The prepared photocatalyst is reusable despite slight deactivation caused by the mechanical loss of TiO2.
| Item Type: | Article |
|---|---|
| Faculty \ School: | Faculty of Science > School of Environmental Sciences |
| UEA Research Groups: | Faculty of Science > Research Groups > Centre for Ocean and Atmospheric Sciences Faculty of Science > Research Groups > Marine and Atmospheric Sciences (former - to 2017) |
| Depositing User: | Rosie Cullington |
| Date Deposited: | 23 Feb 2011 10:34 |
| Last Modified: | 12 Jan 2023 12:30 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/24461 |
| DOI: | 10.1016/j.apcatb.2008.09.002 |
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