Notice of RetractionStudy on the Release Mechanism of Thallium in Tl-Containing Pyrite

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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Surface reaction in pyrite was investigated by using diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS). Results found that the superficial hydroxyls were enhanced in the process of surface oxidation of pyrite but significantly decreased in the process of treating acidic solution containing thallium. Acidic liquid membrane formed by obvious surface dissolution and neutralization of carbonate within pyrite were further indicated by in situ attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy. It was propounded that the neutralization of carbonate greatly influenced the release of thallium from pyrite through the experiment of pyrite treating Tl-containing acidic solution. A thallium release mechanism was proposed that the dissolution adsorption precipitation equilibrium of thallium was occurred, and this equilibrium was under the control of both neutralization reaction of carbonate and surface oxidation of pyrite and finally decided the release and migration of thallium.