| AgVO3/ZIF-8复合材料的制备及其增强四环素降解性能 |
| Construction of AgVO3/ZIF-8 composites for enhanced degradation of tetracycline |
| 作者 | 单位 | E-mail | | 朱敏 | 南京中医药大学翰林学院, 泰州 225300 | | | 王宇鑫 | 泰州学院医药与化学化工学院, 泰州 225300 | | | 黎晓 | 泰州学院医药与化学化工学院, 泰州 225300 | | | 许雅旭 | 泰州学院医药与化学化工学院, 泰州 225300 | | | 朱俊雯 | 泰州学院医药与化学化工学院, 泰州 225300 | | | 王子豪 | 泰州学院医药与化学化工学院, 泰州 225300 | | | 朱禹 | 泰州学院医药与化学化工学院, 泰州 225300 | zhuyu@tzu.edu.cn | | 黄晓晨 | 南京中医药大学翰林学院, 泰州 225300 | | | 徐丹 | 南京中医药大学翰林学院, 泰州 225300 | | | Abul Monsur Showkot Hossaine | Department of Chemistry, Termez State University, Termez 190111, Uzbekistan | monsur_12@yahoo.com |
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| 摘要: 将AgVO3和ZIF-8复合制备出具有增强光催化效应的AgVO3/ZIF-8复合材料。利用X射线衍射(XRD)、扫描电子显微镜(SEM)、高倍透射电子显微镜(HRTEM)、X射线光电子能谱(XPS)、紫外可见漫反射光谱(UV-Vis DRS)、光致发光(PL)光谱、电子自旋共振(ESR)谱、瞬态光电流和电化学阻抗谱(EIS)对二元复合材料进行了表征。以四环素(TC)为底物，研究了该催化剂在光照条件下的降解性能。实验结果表明，AgVO3和ZIF-8的物质的量之比为10%时制备的10%-AZ复合材料对TC的降解率为75.0%，且在一定离子含量下仍能保持光催化活性。此外，通过活性物质捕获实验进一步研究了二元复合材料的光催化机理。 |
| 关键词: AgVO3 ZIF-8 金属有机框架 光催化 四环素 |
| 基金项目: 江苏省自然科学基金(No.23KJA530002)和泰州市科技支撑计划(社会发展)(No.TN202424)资助。 |
| Abstract: AgVO3/ZIF 8 composites with enhanced photocatalytic effect were prepared by the combination of AgVO3 and ZIF-8. X-ray diffraction (XRD), scanning electron microscopy (SEM), high-power transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS), ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS), photoluminescence (PL) spectroscopy, electron spin resonance (ESR) spectroscopy, transient photocurrent and electrochemical impedance spectroscopy (EIS) were used to characterize binary composites. Tetracycline (TC) was used as a substrate to study the performance efficiency of the degradation of photocatalysts under light conditions, and the degradation effect of TC was also evaluated under different mass concentrations and ionic contents. In addition, we further investigated the photocatalytic mechanism of the binary composite material AgVO3/ ZIF-8 and identified the key active components responsible for the catalytic degradation of this new photocatalyst. The experimental results show that the degradation efficiency of 10% AZ, prepared with a molar ratio of 10% AgVO3 and ZIF-8 to TC, was 75.0%. This indicates that the photocatalytic activity can be maintained even under a certain ionic content, making it a suitable photocatalyst for optimal use. In addition, the photocatalytic mechanism of binary composites was further studied by the active species trapping experiment. |
| Keywords: AgVO3 ZIF-8 metal-organic framework photocatalysis tetracycline |
| 投稿时间：2024-11-01 修订日期：2025-03-24 |
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