杨富林，李婷婷，杨奇东，等. 自支撑ZnWO4/WO3光电极降解环丙沙星污染物研究[J]. 南昌航空大学学报（自然科学版），2026，40(1)：10-23，51. doi: 10.3969/j.issn.2096-8566.2026.01.002
引用本文: 杨富林，李婷婷，杨奇东，等. 自支撑ZnWO4/WO3光电极降解环丙沙星污染物研究[J]. 南昌航空大学学报（自然科学版），2026，40(1)：10-23，51. doi: 10.3969/j.issn.2096-8566.2026.01.002
shu
YANG Fulin，LI Tingting，YANG Qidong，et al. Self-supported ZnWO4/WO3 photoelectrodes for photoelectrocatalytic degradation of ciprofloxacin pollutants[J]. Journal of Nanchang Hangkong University (Natural Sciences)，2026，40(1)：10-23，51. doi: 10.3969/j.issn.2096-8566.2026.01.002
Citation: YANG Fulin，LI Tingting，YANG Qidong，et al. Self-supported ZnWO4/WO3 photoelectrodes for photoelectrocatalytic degradation of ciprofloxacin pollutants[J]. Journal of Nanchang Hangkong University (Natural Sciences)，2026，40(1)：10-23，51. doi: 10.3969/j.issn.2096-8566.2026.01.002
shu

自支撑ZnWO4/WO3光电极降解环丙沙星污染物研究

Self-Supported ZnWO4/WO3 Photoelectrodes for Photoelectrocatalytic Degradation of Ciprofloxacin Pollutants

    摘要
  • 摘要: 本文采用简便的阳极氧化法与化学滴铸法，制得钨箔基自支撑ZnWO4/WO3光电极。与WO3光电极相比，ZnWO4/WO3光电极在可见光区的吸收能力显著增强，光生电荷分离效率也显著提高。在模拟太阳光照射和辅助偏压0.6 V作用下，ZnWO4/WO3光电极在120 min内对环丙沙星的降解效率高达80.0%。这是由于ZnWO4与WO3接触界面形成Z型异质结，WO3导带上的电子与ZnWO4价带上的空穴相结合，释放出ZnWO4导带上电位更负的电子和WO3价带上电位更正的空穴，实现光生电子−空穴的有效分离和迁移，促进光生电子和空穴参与光电催化降解反应。

     

    Abstract: A self-supported ZnWO4/WO3 photoelectrode was fabricated using a simple two-step strategy involving anodic oxidation and chemical drop-casting. Compared to the pristine WO3 photoelectrode, the ZnWO4/WO3 composite exhibited significantly enhanced visible-light absorption and improved photogenerated charge separation efficiency. Under simulated solar irradiation and a bias voltage of 0.6 V, the ZnWO4/WO3 photoelectrode achieved 80.0% degradation efficiency for ciprofloxacin within 120 min. These performance enhancements originate from the formation of a Z-scheme heterojunction at the ZnWO4/WO3 interface. In this heterojunction, electrons in the conduction band of WO3 combine with holes from the valence band of ZnWO4, leaving electrons with a more negative potential in the conduction band of ZnWO4 and holes with a more positive potential in the valence band of WO3. This synergistic mechanism promotes efficient participation of photogenerated electrons and holes in photoelectrocatalytic degradation reactions

     

    • HTML全文
    • 参考文献(34)
    • 相关文章
    • 施引文献
  • 资源附件(0)

/

返回文章
返回