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超顺磁性纳米Fe3O4的制备及其类Fenton反应性能

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刘焕联, 李贤英, 魏贝贝, 徐丰冰. 超顺磁性纳米Fe3O4的制备及其类Fenton反应性能[J]. 环境工程学报, 2017, 11(6): 3525-3531. doi: 10.12030/j.cjee.201603236
引用本文: 刘焕联, 李贤英, 魏贝贝, 徐丰冰. 超顺磁性纳米Fe3O4的制备及其类Fenton反应性能[J]. 环境工程学报, 2017, 11(6): 3525-3531. doi: 10.12030/j.cjee.201603236
shu
LIU Huanlian, LI Xianying, WEI Beibei, XU Fengbing. Synthesis of super-paramagnetic Fe3O4 nanoparticles and its Fenton-like properties[J]. Chinese Journal of Environmental Engineering, 2017, 11(6): 3525-3531. doi: 10.12030/j.cjee.201603236
Citation: LIU Huanlian, LI Xianying, WEI Beibei, XU Fengbing. Synthesis of super-paramagnetic Fe3O4 nanoparticles and its Fenton-like properties[J]. Chinese Journal of Environmental Engineering, 2017, 11(6): 3525-3531. doi: 10.12030/j.cjee.201603236
shu

超顺磁性纳米Fe3O4的制备及其类Fenton反应性能

  • 1.

    东华大学环境科学与工程学院, 上海 201620

  • 基金项目:

  • 中图分类号: X703

Synthesis of super-paramagnetic Fe3O4 nanoparticles and its Fenton-like properties

  • 1.

    College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China

  • Fund Project:

  • 摘要: 以二甘醇/乙二醇醇热法制备了超顺磁性纳米Fe3O4，采用场发射扫描电子显微镜（FE-SEM）、X射线衍射（XRD）以及磁滞回线等手段对制备的纳米Fe3O4进行表征，并通过纳米Fe3O4/ H2O2类Fenton反应降解罗丹明B废水考察了纳米Fe3O4/H2O2的性能及其稳定性。研究表明，制备的纳米Fe3O4不仅分散性好、规整球状结构，磁性强且粒径比较均匀，平均粒径约为80 nm；从单因素实验（纳米Fe3O4投加量、H2O2/Fe3O4的摩尔比、pH以及反应时间）与正交实验获得了最佳反应条件：纳米Fe3O4投加量为2 g·L-1，pH=4，H2O2/Fe3O4摩尔比为4：1，反应时间为3 h，此时罗丹明B与TOC去除率分别为100%和35%。重复4次使用纳米Fe3O4，通过表征发现纳米Fe3O4颗粒的晶体结构不变但是发生了团聚，纳米Fe3O4的催化性能有所下降。
    Abstract: Using diethylene glycol/ethylene glycol alcohol as a solvent, superparamagnetic Fe3O4 was prepared using a hydrothermal method and was characterized by field emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), and magnetic performance testing.From the Fenton-like reaction of nano-Fe3O4/H2O2 to degrade rhodamine B, the catalytic performance and stability of nano-Fe3O4 on H2O2 were investigated.The results revealed that prepared nano-Fe3O4 possessed well-defined globular structure with uniform particle size of approximately 80 nm and showed high dispersion and strong magnetism as well.Combining the results of single factor experiments (nano-Fe3O4 dosage, H2O2/nano-Fe3O4 molar ratio, pH, and reaction time) and orthogonal experiments, the optimum reactive conditions were determined as:dosage of nano-Fe3O4 is 2 g·L-1, pH is 4, molar ratio of H2O2 to nano-Fe3O4 is 4:1, and reaction time is 3 h.With this understanding, the removal rates of rhodamine B and TOC were 100% and 35%, respectively.The catalytic performance of nano-Fe3O4 was weakened after it was reused four times because of aggregation.
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  • 收稿日期:  2016-05-24
  • 刊出日期:  2017-06-23
刘焕联, 李贤英, 魏贝贝, 徐丰冰. 超顺磁性纳米Fe3O4的制备及其类Fenton反应性能[J]. 环境工程学报, 2017, 11(6): 3525-3531. doi: 10.12030/j.cjee.201603236
引用本文: 刘焕联, 李贤英, 魏贝贝, 徐丰冰. 超顺磁性纳米Fe3O4的制备及其类Fenton反应性能[J]. 环境工程学报, 2017, 11(6): 3525-3531. doi: 10.12030/j.cjee.201603236
shu
LIU Huanlian, LI Xianying, WEI Beibei, XU Fengbing. Synthesis of super-paramagnetic Fe3O4 nanoparticles and its Fenton-like properties[J]. Chinese Journal of Environmental Engineering, 2017, 11(6): 3525-3531. doi: 10.12030/j.cjee.201603236
Citation: LIU Huanlian, LI Xianying, WEI Beibei, XU Fengbing. Synthesis of super-paramagnetic Fe3O4 nanoparticles and its Fenton-like properties[J]. Chinese Journal of Environmental Engineering, 2017, 11(6): 3525-3531. doi: 10.12030/j.cjee.201603236
shu

超顺磁性纳米Fe3O4的制备及其类Fenton反应性能

  • 1. 东华大学环境科学与工程学院, 上海 201620
  • 收稿日期:  2016-05-24
基金项目:

摘要: 以二甘醇/乙二醇醇热法制备了超顺磁性纳米Fe3O4，采用场发射扫描电子显微镜（FE-SEM）、X射线衍射（XRD）以及磁滞回线等手段对制备的纳米Fe3O4进行表征，并通过纳米Fe3O4/ H2O2类Fenton反应降解罗丹明B废水考察了纳米Fe3O4/H2O2的性能及其稳定性。研究表明，制备的纳米Fe3O4不仅分散性好、规整球状结构，磁性强且粒径比较均匀，平均粒径约为80 nm；从单因素实验（纳米Fe3O4投加量、H2O2/Fe3O4的摩尔比、pH以及反应时间）与正交实验获得了最佳反应条件：纳米Fe3O4投加量为2 g·L-1，pH=4，H2O2/Fe3O4摩尔比为4：1，反应时间为3 h，此时罗丹明B与TOC去除率分别为100%和35%。重复4次使用纳米Fe3O4，通过表征发现纳米Fe3O4颗粒的晶体结构不变但是发生了团聚，纳米Fe3O4的催化性能有所下降。

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