Notice of RetractionPhotocatalytic Degradation Kinetics of Reactive Bright Orange Solution with Phosphotungstic Acid

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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The photocatalytic decomposition of Reactive Bright Orange (abbreviated as KGN) with polyoxometale, phosphotungstic acid (abbreviated as PTA), was investigated in an aqueous solution with a 253.7nm, 20W UV lamp. The results revealed that the photocatalytic degradation reaction of KGN with PTA in a homogenous aqueous solution can be described by Langmuir-Hinshelwood equation. The results manifested that the photocatalytic reaction was first-order for lower concentration (≤30mg L^-1) KGN and is zero-order for higher concentration KGN (≥100mg L^-1), when the irradiation intensity of the light was higher than 100lx. But for lower concentration KGN (10mg L^-1), the photocatalytic reaction was zero-order, when the irradiation intensity of the light was lower than 100lx . The knowledge on the kinetics of the system possesses both practical and theoretical values.