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Photocatalytic degradation of 17-beta-oestradiol on immobilised TiO2

Biomedical Sciences Research Institute Computer Science Research Institute Environmental Sciences Research Institute Nanotechnology & Advanced Materials Research Institute

Coleman, HM, Eggins, BR, Byrne, JA, Palmer, FL and King, E (2000) Photocatalytic degradation of 17-beta-oestradiol on immobilised TiO2. APPLIED CATALYSIS B-ENVIRONMENTAL, 24 (1). L1-L5. [Journal article]

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Abstract

Micro-molar concentrations of aqueous 17-beta-oestradiol were 98% destroyed in 3.5 h 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 x 10(-2) mu mol dm(-3) min(-1) and K(S) = 0.347 dm(3) mu mol(-1). The pseudo-first-order rate constant (1.57 x 10(-2) min(-1)) was in line with the 50% degradation time of 40 min. The apparent quantum yield per electron was phi'(e) = 0.41%. The effect of pH on the initial rate of degradation was similar to that reported for phenol. (C) 2000 Elsevier Science B.V. All rights reserved.

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:5354
Deposited By:Professor John Byrne
Deposited On:18 Jan 2010 11:58
Last Modified:18 Aug 2011 11:15

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