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Fe-MOFs prepared with the DBD plasma method for efficient Fenton catalysis

机译：用DBD等离子体方法制备Fe-Mof，用于高效Fenton催化

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摘要

Fe-MOFs were successfully synthesized with the dielectric barrier discharge (DBD) plasma method, and applied for degradation of methyl orange by the Fenton process. Fe-MOFs were characterized by XRD, SEM, EDS, BET and FT-IR. A systematic study was carried out to optimize the synthesis conditions, taking into account the Fenton capacity performance for degradation of methyl orange. The optimal synthesis conditions were a discharge time of 100 min, discharge voltage of 18 kV, reactant concentration of 14 g L-1 and reactant mass ratio (TA : FeCl3 center dot 6H(2)O) of 1 : 5, with influence on the crystallization, morphologies and particle size. The degradation rate of methyl orange could reach 85% within 40 min with the MO concentration of 50 mg L-1, Fe-MOF dosage of 0.12 g L-1, pH of 5 and H2O2 at 1 mL L-1. Meanwhile, the Fenton catalytic process was conducted covering a range of catalyst concentrations, initial MO concentrations, pH and H2O2 amounts. Higher catalyst concentration, lower MO initial concentration, pH of 3 and H2O2 amount of 1 mL L-1 were conducive to the degradation efficiency.
机译：用介质屏障放电（DBD）等离子体法成功地合成Fe-MOF，并施加FENTON工艺的甲基橙的降解。 Fe-Mof的特点是XRD，SEM，EDS，BET和FT-IR。进行了系统研究以优化合成条件，同时考虑到芬顿能力的甲基橙降解的芬顿能力性能。最佳合成条件为10分钟的放电时间，放电电压为18 kV，反应物浓度为14g L-1，反应物质量比（Ta：feCl3中心点6h（2）O）为1：5，影响结晶，形态和粒径。甲基橙的降解速率可在40分钟内达到85％，Mo浓度为50mg L-1，Fe-Mof剂量为0.12g L-1，pH为5和H 2 O 2，在1mL L-1。同时，对芬顿催化过程进行覆盖一系列催化剂浓度，初始Mo浓度，pH和H 2 O 2量。较高的催化剂浓度，较低的Mo初始浓度，pH为3和H 2 O 2量的1mL L-1的浓度有利于降解效率。

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  • 来源
    《RSC Advances》 |2019年第11期|共8页
  • 作者

    Tao Xumei; Sun Chao; Huang Liang; Han Yuanyuan; Xu Dongyan;

  • 作者单位

    Qingdao Univ Sci &

    Technol Coll Chem Engn State Key Lab Base Ecochem Engn Qingdao 266042 Shandong Peoples R China;

    Qingdao Univ Sci &

    Technol Coll Chem Engn State Key Lab Base Ecochem Engn Qingdao 266042 Shandong Peoples R China;

    Qingdao Univ Sci &

    Technol Coll Electromech Engn Qingdao 266042 Shandong Peoples R China;

    Qingdao Univ Sci &

    Technol Coll Chem Engn State Key Lab Base Ecochem Engn Qingdao 266042 Shandong Peoples R China;

    Qingdao Univ Sci &

    Technol Coll Chem Engn State Key Lab Base Ecochem Engn Qingdao 266042 Shandong Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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