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Photocatalytic degradation of herbicide fluroxypyr in aqueous suspension of TiO2 by M.A. Aramendía; A. Marinas; J.M. Marinas; J.M. Moreno; F.J. Urbano is a Materials Science article available to read on EtoBox.
What is Photocatalytic degradation of herbicide fluroxypyr in aqueous suspension of TiO2 about?
The photocatalytic degradation of fluroxypyr (FLX) was studied using Degussa P-25 Titania as a catalyst. The disappearance of FLX was proved to follow a half-order kinetics. This implies that two active sites are involved in the adsorption of one molecule of fluroxypyr. In our conditions, complete mineralization of 40 ppm of pure fluroxypyr occurred within ca. 240 min of UV-radiation. Some reaction intermediates were identified by HPLC-MS (ESI+) and a tentative degradation pathway was proposed. The presence of HCl (pH 2) seemed to have an inhibiting effect on the initial rate, whereas degradation of FLX was accelerated at basic pH values (pH 8 or 10, achieved with CaCO 3 or NaOH, respectively). Photocatalysis proved to be an excellent new advanced oxidation technology (AOT) to eliminate fluroxypyr residues present in surface and ground waters.
Who reads Photocatalytic degradation of herbicide fluroxypyr in aqueous suspension of TiO2?
It is typically read by researchers, students, and practitioners in Materials Science.
- Author
- M.A. Aramendía; A. Marinas; J.M. Marinas; J.M. Moreno; F.J. Urbano
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0920-5861)
- Published
- 2005
- Language
- EN
- Field
- Materials Science (Physical Sciences)