Photolytic and TiO2-Assisted Photodegradation of Aqueous Solutions of Tetracycline

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Abstract

Aqueous solutions of tetracycline were UV-irradiated in homogeneous and heterogeneous systems. Tetracycline disappeared in both systems, but the presence of TiO2 accelerated the photodegradation of the antibiotic in comparison with direct photolysis. The rate of decomposition was dependent on the concentration of tetracycline and its degradation on the surface of TiO2 can be described by means of a pseudo-first order kinetics. Photolysis involved only the photodeamination of tetracycline and a partial mineralization. Unlikely, the treatment with TiO2 and UV-light resulted in a complete mineralization of the antibiotic drug.
Lingua originaleEnglish
pagine (da-a)1275-1280
Numero di pagine6
RivistaFresenius Environmental Bulletin
Volume13
Stato di pubblicazionePublished - 2004

All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • Pollution
  • Waste Management and Disposal

Cita questo

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title = "Photolytic and TiO2-Assisted Photodegradation of Aqueous Solutions of Tetracycline",
abstract = "Aqueous solutions of tetracycline were UV-irradiated in homogeneous and heterogeneous systems. Tetracycline disappeared in both systems, but the presence of TiO2 accelerated the photodegradation of the antibiotic in comparison with direct photolysis. The rate of decomposition was dependent on the concentration of tetracycline and its degradation on the surface of TiO2 can be described by means of a pseudo-first order kinetics. Photolysis involved only the photodeamination of tetracycline and a partial mineralization. Unlikely, the treatment with TiO2 and UV-light resulted in a complete mineralization of the antibiotic drug.",
keywords = "tetracycline photodegradation; photolysis; heterogeneous photocatalysis; titanium dioxide",
author = "Vincenzo Augugliaro and {Di Paola}, Agatino and Leonardo Palmisano and Vittorio Loddo and {Garcia Lopez}, {Elisa Isabel} and Maurizio Addamo",
year = "2004",
language = "English",
volume = "13",
pages = "1275--1280",
journal = "Fresenius Environmental Bulletin",
issn = "1018-4619",
publisher = "Parlar Scientific Publications",

}

TY - JOUR

T1 - Photolytic and TiO2-Assisted Photodegradation of Aqueous Solutions of Tetracycline

AU - Augugliaro, Vincenzo

AU - Di Paola, Agatino

AU - Palmisano, Leonardo

AU - Loddo, Vittorio

AU - Garcia Lopez, Elisa Isabel

AU - Addamo, Maurizio

PY - 2004

Y1 - 2004

N2 - Aqueous solutions of tetracycline were UV-irradiated in homogeneous and heterogeneous systems. Tetracycline disappeared in both systems, but the presence of TiO2 accelerated the photodegradation of the antibiotic in comparison with direct photolysis. The rate of decomposition was dependent on the concentration of tetracycline and its degradation on the surface of TiO2 can be described by means of a pseudo-first order kinetics. Photolysis involved only the photodeamination of tetracycline and a partial mineralization. Unlikely, the treatment with TiO2 and UV-light resulted in a complete mineralization of the antibiotic drug.

AB - Aqueous solutions of tetracycline were UV-irradiated in homogeneous and heterogeneous systems. Tetracycline disappeared in both systems, but the presence of TiO2 accelerated the photodegradation of the antibiotic in comparison with direct photolysis. The rate of decomposition was dependent on the concentration of tetracycline and its degradation on the surface of TiO2 can be described by means of a pseudo-first order kinetics. Photolysis involved only the photodeamination of tetracycline and a partial mineralization. Unlikely, the treatment with TiO2 and UV-light resulted in a complete mineralization of the antibiotic drug.

KW - tetracycline photodegradation; photolysis; heterogeneous photocatalysis; titanium dioxide

UR - http://hdl.handle.net/10447/16654

M3 - Article

VL - 13

SP - 1275

EP - 1280

JO - Fresenius Environmental Bulletin

JF - Fresenius Environmental Bulletin

SN - 1018-4619

ER -