Notice of Retraction: Degradation of Methylene Blue in Aqueous Solution by Gamma Irradiation

Zheng, Binguo; Li, Chunguang; Jiang, Linyan; Liang, Lizheng; Pen, Weigong; Niu, Junling

doi:10.1109/icbbe.2011.5781120

Cited by 2 publications

(1 citation statement)

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“…9(a) shows the radiocatalytic degradation curves of MB as a function of dose for different Cu dopant content in Cu-TiO 2 catalysts calcined at 400°C for 6 h. It is found that the degradation ratio of MB increases gradually with gamma dose. Under gamma irradiation and without any TiO 2 catalyst, MB presents a similar degradation to that reported previously in the literature [64]. We then find that the insertion of copper into the TiO 2 structure is beneficial to the radiocatalytic efficiency.…”

Section: Optical Propertiessupporting

confidence: 84%

Radiocatalytic Cu-incorporated TiO2 nano-particles for the degradation of organic species under gamma irradiation

Samet

March

Stéphan

et al. 2018

Journal of Alloys and Compounds

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We report on an experimental study aimed at optimizing the radiocatalytic properties of pure and copper-incorporated TiO 2 powders. This has been achieved by conducting crosschecked structural, optical and radiocatalytic studies. Structural and nanoscale analyses show evidence of internal doping by Cu 2+ in the TiO 2 lattice that leads to the reduction of the optical band gap down to 1.5 eV. The effect of gamma radiation on the radiocatalytic activity of these catalysts was studied by degradation of methylene blue as a model pollutant. It was found that the addition of Cu-doped TiO 2 (anatase) powders improves significantly the pollutant degradation, as compared to photocatalysis. The doping and the annealing temperature's impact on the structural, optical and radiocatalytic efficiencies are highlighted and correlated.

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Section: Optical Propertiessupporting

confidence: 84%