Photocatalytic Degradation of Deoxynivalenol over Dendritic-Like -Fe2O3 under Visible Light Irradiation

文献类型： 外文期刊

第一作者： Wang, Huiting

作者： Wang, Huiting;Mao, Jin;Zhang, Zhaowei;Zhang, Qi;Zhang, Liangxiao;Zhang, Wen;Li, Peiwu;Wang, Huiting;Zhang, Qi;Zhang, Liangxiao;Li, Peiwu;Mao, Jin;Zhang, Zhaowei;Zhang, Qi;Zhang, Wen;Li, Peiwu;Mao, Jin;Zhang, Zhaowei;Zhang, Liangxiao;Zhang, Wen;Li, Peiwu;Zhang, Qi;Zhang, Wen;Li, Peiwu

作者机构：

关键词： deoxynivalenol; degradation; photocatalysis; -Fe2O3; degradation products

期刊名称：TOXINS （ 影响因子：4.546； 五年影响因子：4.8 ）

ISSN： 2072-6651

年卷期： 2019 年 11 卷 2 期

页码：

收录情况： SCI

摘要： Deoxynivalenol (DON) is a secondary metabolite produced by Fusarium, which is a trichothecene mycotoxin. As the main mycotoxin with high toxicity, wheat, barley, corn and their products are susceptible to contamination of DON. Due to the stability of this mycotoxin, traditional methods for DON reduction often require a strong oxidant, high temperature and high pressure with more energy consumption. Therefore, exploring green, efficient and environmentally friendly ways to degrade or reduce DON is a meaningful and challenging issue. Herein, a dendritic-like -Fe2O3 was successfully prepared using a facile hydrothermal synthesis method at 160 degrees C, which was systematically characterized by X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS). It was found that dendritic-like -Fe2O3 showed superior activity for the photocatalytic degradation of DON in aqueous solution under visible light irradiation ( > 420 nm) and 90.3% DON (initial concentration of 4.0 g/mL) could be reduced in 2 h. Most of all, the main possible intermediate products were proposed through high performance liquid chromatography-mass spectrometry (HPLC-MS) after the photocatalytic treatment. This work not only provides a green and promising way to mitigate mycotoxin contamination but also may present useful information for future studies.

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