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Photocatalytic Degradation of Amoxicillin, Ampicillin and Cloxacillin Antibiotics in Aqueous Solution using UV/TiO2 and UV/H2O2/TiO2 Photocatalysis

Degradation of amoxicillin, ampicillin and cloxacillin antibiotics in aqueous solution by TiO2 photocatalysis under UVA (365 nm) irradiation was studied. Enhancement of photocatalysis by addition of H2O2 was also evaluated. The results showed that no significant degradation occurred by 300-min UVA i...

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Main Authors: Elmolla, E. S., Chaudhuri, M.
Format: Article
Published: Elsevier 2010
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.utp.edu.my/2375/
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spelling my.utp.eprints.23752014-04-01T03:05:06Z Photocatalytic Degradation of Amoxicillin, Ampicillin and Cloxacillin Antibiotics in Aqueous Solution using UV/TiO2 and UV/H2O2/TiO2 Photocatalysis Elmolla, E. S. Chaudhuri, M. TA Engineering (General). Civil engineering (General) Degradation of amoxicillin, ampicillin and cloxacillin antibiotics in aqueous solution by TiO2 photocatalysis under UVA (365 nm) irradiation was studied. Enhancement of photocatalysis by addition of H2O2 was also evaluated. The results showed that no significant degradation occurred by 300-min UVA irradiation per se and pH had a great effect on antibiotic degradation. Photocatalytic reactions approximately followed a pseudo-first order kinetics and the rate constants (k) were 0.007, 0.003 and 0.029 min- 1 for amoxicillin, ampicillin and cloxacillin, respectively. Addition of H2O2 at ambient pH ∼ 5 and TiO2 1.0 g/L resulted in complete degradation of amoxicillin, ampicillin and cloxacillin in 30 min. Dissolved organic carbon (DOC) removal, and nitrate (NO3-), ammonia (NH3) and sulphate (SO42-) formation during degradation indicated mineralization of organic carbon, nitrogen and sulphur. UV/H2O2/TiO2 photocatalysis is effective for degradation of amoxicillin, ampicillin and cloxacillin in aqueous solution. © 2009 Elsevier B.V. All rights reserved. Elsevier 2010-03 Article PeerReviewed Elmolla, E. S. and Chaudhuri, M. (2010) Photocatalytic Degradation of Amoxicillin, Ampicillin and Cloxacillin Antibiotics in Aqueous Solution using UV/TiO2 and UV/H2O2/TiO2 Photocatalysis. Desalination, 252 . pp. 46-52. ISSN 00119164 http://eprints.utp.edu.my/2375/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Elmolla, E. S.
Chaudhuri, M.
Photocatalytic Degradation of Amoxicillin, Ampicillin and Cloxacillin Antibiotics in Aqueous Solution using UV/TiO2 and UV/H2O2/TiO2 Photocatalysis
description Degradation of amoxicillin, ampicillin and cloxacillin antibiotics in aqueous solution by TiO2 photocatalysis under UVA (365 nm) irradiation was studied. Enhancement of photocatalysis by addition of H2O2 was also evaluated. The results showed that no significant degradation occurred by 300-min UVA irradiation per se and pH had a great effect on antibiotic degradation. Photocatalytic reactions approximately followed a pseudo-first order kinetics and the rate constants (k) were 0.007, 0.003 and 0.029 min- 1 for amoxicillin, ampicillin and cloxacillin, respectively. Addition of H2O2 at ambient pH ∼ 5 and TiO2 1.0 g/L resulted in complete degradation of amoxicillin, ampicillin and cloxacillin in 30 min. Dissolved organic carbon (DOC) removal, and nitrate (NO3-), ammonia (NH3) and sulphate (SO42-) formation during degradation indicated mineralization of organic carbon, nitrogen and sulphur. UV/H2O2/TiO2 photocatalysis is effective for degradation of amoxicillin, ampicillin and cloxacillin in aqueous solution. © 2009 Elsevier B.V. All rights reserved.
format Article
author Elmolla, E. S.
Chaudhuri, M.
author_facet Elmolla, E. S.
Chaudhuri, M.
author_sort Elmolla, E. S.
title Photocatalytic Degradation of Amoxicillin, Ampicillin and Cloxacillin Antibiotics in Aqueous Solution using UV/TiO2 and UV/H2O2/TiO2 Photocatalysis
title_short Photocatalytic Degradation of Amoxicillin, Ampicillin and Cloxacillin Antibiotics in Aqueous Solution using UV/TiO2 and UV/H2O2/TiO2 Photocatalysis
title_full Photocatalytic Degradation of Amoxicillin, Ampicillin and Cloxacillin Antibiotics in Aqueous Solution using UV/TiO2 and UV/H2O2/TiO2 Photocatalysis
title_fullStr Photocatalytic Degradation of Amoxicillin, Ampicillin and Cloxacillin Antibiotics in Aqueous Solution using UV/TiO2 and UV/H2O2/TiO2 Photocatalysis
title_full_unstemmed Photocatalytic Degradation of Amoxicillin, Ampicillin and Cloxacillin Antibiotics in Aqueous Solution using UV/TiO2 and UV/H2O2/TiO2 Photocatalysis
title_sort photocatalytic degradation of amoxicillin, ampicillin and cloxacillin antibiotics in aqueous solution using uv/tio2 and uv/h2o2/tio2 photocatalysis
publisher Elsevier
publishDate 2010
url http://eprints.utp.edu.my/2375/
_version_ 1738655189008646144
score 13.211869

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