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Photocatalytic degradation of 17-β-oestradiol on immobilised TiO2

Coleman, Heather M, Eggins, Brian R, Byrne, J.Anthony, Palmer, Fiona L and King, Emma (1999) Photocatalytic degradation of 17-β-oestradiol on immobilised TiO2. Applied Catalysis B: Environmental, 24 (1). L1-L5. [Journal article]

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URL: http://dx.doi.org/10.1016/S0926-3373(99)00091-0

DOI: doi:10.1016/S0926-3373(99)00091-0

Abstract

Micro-molar concentrations of aqueous 17-β-oestradiol were 98% destroyed in 3.5h by photocatalysis over the titanium dioxide powder immobilised on Ti-6Al-4V alloy. The concentration of oestradiol was determined by HPLC with fluorescence detection. The degradation kinetics were fitted to a Langmuir–Hinshelwood model with k(S)=4.4×10−2μmoldm−3min−1 and K(S)=0.347dm3μmol−1. The pseudo-first-order rate constant (1.57×10−2min−1) was in line with the 50% degradation time of 40min. The apparent quantum yield per electron was φe′ =0.41%. The effect of pH on the initial rate of degradation was similar to that reported for phenol.

Item Type:Journal article
Keywords:Titanium dioxide; Oestrogen; Photocatalysis; Water treatment
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Engineering
Research Institutes and Groups:Engineering Research Institute
Engineering Research Institute > Nanotechnology & Integrated BioEngineering Centre (NIBEC)
ID Code:35721
Deposited By: Dr Heather Coleman
Deposited On:08 Sep 2016 08:25
Last Modified:17 Oct 2017 16:25

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