Photocatalytic degradation of 17-beta-oestradiol on immobilised TiO2

Heather Coleman, BR Eggins, JA Byrne, FL Palmer, E King

Research output: Contribution to journalArticle

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.
LanguageEnglish
PagesL1-L5
JournalAPPLIED CATALYSIS B-ENVIRONMENTAL
Volume24
Issue number1
Publication statusPublished - Jan 2000

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Estradiol
Phenol
Powders
Fluorescence
High Pressure Liquid Chromatography
Electrons
titanium dioxide
titanium alloy (TiAl6V4)

Keywords

  • titanium dioxide
  • oestrogen
  • photocatalysis
  • water treatment

Cite this

@article{144ae1808c2f4135b718275e7c1027b0,
title = "Photocatalytic degradation of 17-beta-oestradiol on immobilised TiO2",
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.",
keywords = "titanium dioxide, oestrogen, photocatalysis, water treatment",
author = "Heather Coleman and BR Eggins and JA Byrne and FL Palmer and E King",
year = "2000",
month = "1",
language = "English",
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journal = "Applied Catalysis B: Environmental",
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Photocatalytic degradation of 17-beta-oestradiol on immobilised TiO2. / Coleman, Heather; Eggins, BR; Byrne, JA; Palmer, FL; King, E.

In: APPLIED CATALYSIS B-ENVIRONMENTAL, Vol. 24, No. 1, 01.2000, p. L1-L5.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Photocatalytic degradation of 17-beta-oestradiol on immobilised TiO2

AU - Coleman, Heather

AU - Eggins, BR

AU - Byrne, JA

AU - Palmer, FL

AU - King, E

PY - 2000/1

Y1 - 2000/1

N2 - 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.

AB - 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.

KW - titanium dioxide

KW - oestrogen

KW - photocatalysis

KW - water treatment

M3 - Article

VL - 24

SP - L1-L5

JO - Applied Catalysis B: Environmental

T2 - Applied Catalysis B: Environmental

JF - Applied Catalysis B: Environmental

SN - 0926-3373

IS - 1

ER -