食品科学2024，Vol.45Issue(18)：10-16,7.DOI:10.7506/spkx1002-6630-20231128-245
氧化锌纳米颗粒光催化降解T-2毒素性能分析
Photocatalytic Degradation of T-2 Toxin by Zinc Oxide Nanoparticles
摘要
Abstract
In this study,ZnO nanoparticles with high crystallinity and good dispersibility for efficient and green photocatalytic degradation of T-2 toxin were successfully prepared by a green and mild solvent hydrothermal method.The properties and T-2 toxin degrading performance of the nanoparticles were characterized by high-resolution transmission electron microscopy(HRTEM)and transient photocurrent response(TPR),and the factors affecting the T-2 toxin degrading performance and the underlying mechanism were explored.The results showed that the average particle size of the prepared nanoparticles was 43.23 nm.Under optimized conditions,more than 95%of T-2 toxin at an initial concentration of 5 μg/mL was removed after photocatalytic degradation with the nanoparticles for 240 min,with a degradation kinetic constant of 0.029 9 μg/(mL·min).The optimal catalyst dose was 0.5 mg/mL,and the optimal pH was 5-9 for the degradation of T-2 toxin.The photoelectric characterization confirmed the excellent optical absorption,response and charge separation performance of the ZnO nanoparticles and identified hydroxyl radicals to play a dominant role in T-2 toxin degradation.The current work provides an effective theoretical basis and technical support for the green and efficient degradation,conversion and removal of T-2 toxin.关键词
T-2毒素/光催化降解/ZnO/超高效液相色谱-串联质谱Key words
T-2 toxin/photocatalytic degradation/ZnO/ultra-high performance liquid chromatography-tandem mass spectrometry分类
轻工业引用本文复制引用
娄秀萍,黄晴雯,郭文博,刘晓瑾,王欣艺,聂冬霞,韩铮..氧化锌纳米颗粒光催化降解T-2毒素性能分析[J].食品科学,2024,45(18):10-16,7.基金项目
上海市科技兴农重点攻关项目(2019-02-08-00-12-F01148) （2019-02-08-00-12-F01148）
上海市青年科技英才扬帆计划资助项目(23YF1439100) （23YF1439100）
