Notice of RetractionDegradation of Sulfa Drugs by Photolysis and Photocatalysis

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

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In this work, the degradation of the three sulfa drugs including Sulfadiazine (SD), Sulfamethazine (SMT) and sulfamethoxydiazine (SMD) by photolysis or photocatalysis were investigated. The results showed that the photolysis of three Sulfa drugs was slow without catalyst, the degradation of three Sulfa drugs catalyzed by Fe³⁺ or TiO₂ were faster than photolysis under UV irradiation. Mineralization three Sulfa drugs catalyzed by TiO₂ were faster than that catalyzed by Fe³⁺, and the mineralization of three Sulfa drugs catalyzed by TiO₂ was faster than that catalyzed by Fe³⁺. The degradation of three Sulfa drugs showed the similar change trend whether photolysis or photocatalysis, and the degradation rate of SMD was highest, the degradation rate of SMT took second place and degradation rate of SD was least.