Perspective Accelerated photodegradation of T-2 toxin over magnetic recyclable ZnO/ CaFe 2 O 4 nanocomposite with a p-n based Z-scheme heterojunction architecture

文献类型： 外文期刊

第一作者： Huang, Qingwen

作者： Huang, Qingwen;Lou, Xiuping;Nie, Dongxia;Zhao, Zhihui;Fan, Kai;Guo, Wenbo;Meng, Jiajia;Han, Zheng;Lou, Xiuping;Han, Zheng;Liu, Zheyuan

作者机构：

关键词： T-2 toxin; Photocatalytic degradation; Z-scheme; p-n heterojunction

期刊名称：SEPARATION AND PURIFICATION TECHNOLOGY （ 影响因子：8.6； 五年影响因子：7.8 ）

ISSN： 1383-5866

年卷期： 2024 年 347 卷

页码：

收录情况： SCI

摘要： T-2 toxin (T-2), one of the most toxic mycotoxins, has drawn extensive attention due to its universality and persistence in food and the environment. In this study, a novel magnetic ZnO/CaFe2O4 nanocomposite with a p-n based Z-scheme heterojunction was successfully constructed by a hydrothermal method for efficient photodegradation of T-2 toxin. The optimal cubic structure of ZnO/CaFe2O4 endows it with excellent photocatalytic efficiency in removing T-2 toxin, such that near-total degradation was achieved with an exceptionally high mineralization value (64 %) after 180 min of UV radiation. This efficacy was attributed not only to the abundant reaction sites on the binary composites, but also its Z-scheme heterojunction promoting the electron-hole (e--h+) separation and hence favors redox processes. The center dot OH played a major role in the photodegradation, and the decomposition pathway of T-2 was proposed based on the results of UHPLC-Q-TOF-MS/MS data and density functional theory (DFT) calculations. This work provided a green approach for removing the refractory natural pollutants.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序