The Removal of 4-Chlorophenol and Dichloroacetic Acid in Water Using Ti-, Zr- and Ti/Zr-Pillared Bentonites as Photocatalyst
- 1 Department of Chemical Engineering, University of Blida, P.O. Box 270-09000 Blida, Algeria
- 2 Centre Universitaire, Medea, Algeria
- 3 aboratoire Photocatalyse, catalyze et Environment, CNRS UMR If OS Ecole Centrale de Lyon, 69134 Ecully Cedex, France
Abstract
Heterogeneous photocatalysis could be alternative remediation technology for water since it does not need the addition of any chemicals and it is suitable for treating low concentrations of pollutant. Although the TiO2 Degussa P 25 is most used photocatalyst its photonic efficiency still low and its recovery from water is considered as an awkward process. In this study the effect of zirconium addition to titanium was investigated. Ti/Zr-pillared montmorillonites have been prepared from natural bentonite and characterized by UV-Vis DRS and X-ray diffraction. The photocatalytic activities have been tested for the removal of 4-chlorophenol and dichloroacetic acid in water. The influence of preparation conditions and the calculation method, on these activities has been investigated. It was found that the photocatalytic activities increase by the addition of zirconium in pillorying process and the calculation by Microwaves (MW) improves the photocatalytic activities
DOI: https://doi.org/10.3844/ajassp.2005.1136.1140
Copyright: © 2005 Mohamed Houari, Mohamed Saidi, Djamel Tabet, Pierre Pichat and Hussein Khalaf. This is an open access article distributed under the terms of the
Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Keywords
- Photocatalytic Activities
- Zirconium
- Calcinations
- Microwaves
- Photonic Efficiency