4.6 Article Retracted Publication

被撤回的出版物: Z-scheme g-C3N4 nanosheet/MgBi2O6 systems with the visible light response for impressive photocatalytic organic contaminants degradation (Retracted article. See vol. 427, 2022)

出版社

ELSEVIER SCIENCE SA
DOI: 10.1016/j.jphotochem.2020.113023

关键词

g-C3N4/MgBi2O6; Heterostructured nanocomposite; Photocatalysis; Z-scheme mechanism; Pollutant photodegradation

资金

  1. Natural Sciences and Engineering Research Council of Canada (NSERC) [RGPIN-2016-04221]
  2. McCain Foundation through the McCain Foundation Postdoctoral Fellowship in Innovation program
  3. Vietnam National Foundation for Science and Technology Development (NAFOSTED) [104.05-2020.15]

向作者/读者索取更多资源

A novel Z-scheme g-C3N4 nanosheet/MgBi2O6 system was constructed for visible light photocatalytic elimination of various pollutants, showing excellent degradation efficiency and good reusability. The mechanism of Z-scheme charges movement was proposed to enhance the photoactivity of different pollutants, opening up new avenues for further research.
In this research paper, we have constructed novel Z-scheme g-C3N4 nanosheet/MgBi2O6 systems with the visible light response for the photocatalytic elimination of cationic pollutants such as MB, RhB, anionic pollutants such as CR, MO, and also colorless pollutant such as phenol. The batch tests illustrated that the first-order kinetic constant of the amount-optimized nanocomposite of gCN-NS/MgBi2O6 with a mass ratio of 70:30 was 1337.84 x 10(-4) min(-1) in the degradation of RhB, which was 77.3-folds better than that of g-C3N4 alone. Moreover, using various quenchers, the scavenging test outcomes demonstrated that (OH)-O-center dot, O-center dot(2)-, and h(+) have a remarkable role in the photocatalytic elimination process. The photostability of gCN-NS/MgBi2O6 system was studied over four consecutive cycles revealing good reusability and stability. Finally, according to the energy band matching theory, the mechanism of Z-scheme charges movement was also offered to boost different pollutants photoactivity. Our current work opens up new avenue for further research.

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