Photolytic and TiO2-Assisted Photodegradation of Aqueous Solutions of Tetracycline

6533b871fe1ef96bd12d0b2e

RESEARCH PRODUCT

Photolytic and TiO2-Assisted Photodegradation of Aqueous Solutions of Tetracycline

Agatino Di Paola Maurizio Addamo Vincenzo Augugliaro Elisa Isabel Garcia Lopez Vittorio Loddo Giuseppe Marci'Leonardo Palmisano

subject

titanium dioxide tetracycline photodegradation photolysi heterogeneous photocatalysi

description

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.

year	journal	country	edition	language
2004-01-01

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

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