...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Molecular Liquids >Enhanced photocatalytic degradation of tetracycline from aqueous solution by a novel magnetically separable FeNi3/SiO2/ZnO nano-composite under simulated sunlight: Efficiency, stability, and kinetic studies
【24h】

Enhanced photocatalytic degradation of tetracycline from aqueous solution by a novel magnetically separable FeNi3/SiO2/ZnO nano-composite under simulated sunlight: Efficiency, stability, and kinetic studies

机译：通过模拟阳光下通过新型磁性可分离的FENI3 / SiO2 / ZnO纳米复合材料增强了从水溶液的光催化降解了四环素：效率，稳定性和动力学研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A novel FeNi3/SiO2/ZnO magnetic nano-composite was synthesized for the first time and characterized by means of the X-Ray diffraction (XRD), diffuse reflectance spectroscopy (DRS), transmission electron microscope (TEM), field emission scanning electron microscope (FESEM), vibrating sample magnetometer (VSM), and energy dispersive spectroscopy (EDS) techniques. The photocatalytic activity was evaluated by degradation of tetracycline in aqueous suspension under visible light irradiation. The results showed that the complete degradation of tetracycline was attained under specific conditions of pH 9, photocatalyst loading of 0.02 g/L, contact time of 200 min and initial tetracydine concentration of 15 mg/L Under these conditions, the reduction of chemical oxygen demand (COD) and total organic carbon (TOC) were 87.94% and 61.76%, respectively. The reusability test showed that the photocatalyst had negligible efficiency lost (4.04%) after four cycles of tetracycline degradation. Finally, the mechanism of degradation was investigated and reaction products were detected by GC/MS. Our findings pave a new way to facilitate the design of photocatalysts for water treatment. (C) 2020 Published by Elsevier B.V.
机译：一种新颖的FeNi3 /二氧化硅/氧化锌磁性纳米复合材料合成首次和特征在于X-射线衍射（XRD），漫反射光谱（DRS），透射电子显微镜（TEM），场发射扫描电子显微镜（FESEM），振动样品磁强计（VSM）和能量色散谱（EDS）的技术。的光催化活性是通过四环素的降解在可见光照射下含水悬浮液进行评价。结果表明，四环素的完全降解pH为9的特定的条件下实现的，为0.02g / L的光催化剂负载，200分钟和15 mg / L的初始tetracydine浓度在这些条件下的接触时间，化学需氧量的减少（COD）和总有机碳（TOC）分别为87.94％和61.76％。可重用性测试表明，该光催化剂具有四环素降解的四个循环后可忽略的效率丢失（4.04％）。最后，降解机理进行了研究，并通过GC / MS进行检测反应产物。我们的研究结果铺平了新的途径，以促进光催化剂的水处理设计。 （c）2020由elsevier b.v发布。

著录项

相似文献

  • 外文文献
  • 中文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号