Carbendazim residues in Chinese chives were treated by photocatalysis using the following three electrospun TiO₂ nanofibers: TTiP/PVP, TTiP/PVAc, and TBOT/PVP. The as-spun fibers were calcined at 500–650 °C to achieve anatase/rutile (A/R) ratios of 100:0, 80:20, 70:30, 50:50, and 30:70. The obtained anatase crystallite sizes were in the range of 13.9–28.1 nm, while the rutile crystallite sizes were 21.1–30.6 nm. The experiments were conducted in glass reactors. These were filled with water and each type of the fiber and irradiated from above by black light lamps for 5 min. Then, 50 g of the samples of Chinese chives was immersed for 5, 15, 30, and 60 min. Carbendazim in the chives was extracted using the matrix solid-phase dispersion (MSPD) method and analyzed using UHPLC. The ˙OH formation from each fiber type was investigated using the coumarin fluorescent probe method.

An A/R ratio of 70:30 yielded the highest ˙OH formation, as well as the greatest carbendazim degradation. Rutile plays a crucial role in inhibition of electron-hole recombination and ˙O₂⁻ stabilization. The degradation efficiencies for carbendazim from TTiP/PVP, TTiP/PVAc, and TBOT/PVP fibers after a 60-min treatment were 98.6–99.5%, 91.2–97.1%, and 99.5–99.9%, respectively. The TTiP/PVP and TBOT/PVP fibers produced levels of retained carbendazim in the chives that were within EU maximum residue limits of 0.1 mg/kg. The thermal stability of the TTiP/PVAc fiber limited ˙OH formation and carbendazim degradation.

使用以下三种电纺TiO ₂通过光催化处理韭菜中的多菌灵残留物纳米纤维：TTiP / PVP，TTiP / PVAc和TBOT / PVP。将初生纤维在500–650°C下煅烧，以实现锐钛矿/金红石（A / R）比率为100：0、80：20、70：30、50：50和30:70。获得的锐钛矿微晶尺寸在13.9-28.1 nm范围内，而金红石微晶尺寸在21.1-30.6 nm之间。实验在玻璃反应器中进行。将它们装满水和每种类型的纤维，并用黑光灯从上方照射5分钟。然后，将50克韭菜样品浸入5、15、30和60分钟。香葱中的多菌灵采用基质固相分散法（MSPD）进行萃取，并采用UHPLC进行分析。使用香豆素荧光探针法研究了每种纤维的˙OH形成情况。

70:30的A / R比产生最高的OH生成以及最大的多菌灵降解。金红石起着抑制电子-空穴复合和O的至关重要的作用₂ ^-稳定化。经过60分钟处理后，TTiP / PVP，TTiP / PVAc和TBOT / PVP纤维中多菌灵的降解效率分别为98.6–99.5％，91.2–97.1％和99.5–99.9％。TTiP / PVP和TBOT / PVP纤维在细香葱中产生的残留多菌灵水平在欧盟最大残留限量0.1 mg / kg之内。TTiP / PVAc纤维的热稳定性限制了OH的形成和多菌灵的降解。