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超声辅助离子交换法制备Fe/Co/Al-Mt催化剂及性能

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李志亮, 赵彬侠, 刘林学, 贺贝贝, 孙丽, 张小里. 超声辅助离子交换法制备Fe/Co/Al-Mt催化剂及性能[J]. 环境化学, 2020, (10): 2929-2936. doi: 10.7524/j.issn.0254-6108.2019073102
引用本文: 李志亮, 赵彬侠, 刘林学, 贺贝贝, 孙丽, 张小里. 超声辅助离子交换法制备Fe/Co/Al-Mt催化剂及性能[J]. 环境化学, 2020, (10): 2929-2936. doi: 10.7524/j.issn.0254-6108.2019073102
shu
LI Zhiliang, ZHAO Binxia, LIU Linxue, HE Beibei, SUN Li, ZHANG Xiaoli. Preparation of Fe/Co/Al-Mt catalysts by ultrasound-assisted ion exchange method and its property investigation[J]. Environmental Chemistry, 2020, (10): 2929-2936. doi: 10.7524/j.issn.0254-6108.2019073102
Citation: LI Zhiliang, ZHAO Binxia, LIU Linxue, HE Beibei, SUN Li, ZHANG Xiaoli. Preparation of Fe/Co/Al-Mt catalysts by ultrasound-assisted ion exchange method and its property investigation[J]. Environmental Chemistry, 2020, (10): 2929-2936. doi: 10.7524/j.issn.0254-6108.2019073102
shu

超声辅助离子交换法制备Fe/Co/Al-Mt催化剂及性能

  • 1. 西北大学, 化工学院, 西安, 710069;

  • 2. 西北大学, 食品科学与技术学院, 西安, 710069

    • 通讯作者: 赵彬侠, E-mail: zhaobx@nwu.edu.cn ; 
  • 基金项目:

    陕西省科技计划项目（2018GY-067）资助.

Preparation of Fe/Co/Al-Mt catalysts by ultrasound-assisted ion exchange method and its property investigation

  • 1. College of Chemical Engineering, Northwest University, Xi'an, 710069, China;

  • 2. College of Food Science and Technology, Northwest University, Xi'an, 710069, China

    • Corresponding author: ZHAO Binxia, zhaobx@nwu.edu.cn ; 
  • Fund Project: Supported by Shaanxi Science and Technology Plan Project (2018GY-067).

  • 摘要: 以铁为活性组分，柱撑蒙脱土（Mt）为载体，分别采用传统离子交换法与超声辅助离子交换法制备Fe/Co/Al-Mt（C）与Fe/Co/Al-Mt（U）催化剂.通过FT-IR、XRD、DR UV-Vis、SEM和BET等表征手段分析催化剂的物化性质及表面结构，以甲基橙（MO）染料废水为目标降解物研究催化剂的催化性能，并借助叔丁醇/苯醌验证CWPO反应体系中·OH的产生及降解机理.结果表明，与Fe/Co/Al-Mt（C）相比，Fe/Co/Al-Mt（U）比表面积增大16.2%，孔径增大10.2%，活性组分分散更加均匀，催化活性明显提高，对甲基橙染料废水的COD去除率高达80.3%；并且Fe/Co/Al-Mt（U）催化剂稳定性更高且活性组分流失较少，在四次催化循环后COD去除率仍在70%以上，活性组分Fe离子溶出量仅为0.59 mg·L-1.
    Abstract: Fe/Co/Al-Mt(C) and Fe/Co/Al-Mt(U) catalysts were prepared by conventional ion exchange method and ultrasound-assisted ion exchange method with iron as active component and pillared montmorillonite(Mt) as carrier. The physicochemical properties and surface structure of the (Fe/Co/Al-Mt) samples were examined by FT-IR,XRD,DR UV-Vis,SEM and BET. In addition, With the methyl orange (MO) of dye wastewater, the catalytic performance of the prepared catalyst was examined, the TBA/BQ was used to infer the·OH generation and degradation mechanism in the CWPO system. The results show that compared with Fe/Co/Al-Mt(C), the Fe/Co/Al-Mt(U) specific surface area was increased by 16.2%, the pore diameter was increased by 10.2%, and the active component was more uniformly dispersed, which made the catalytic activity much higher, the COD removal rate of methyl orange dye wastewater was as high as 80.3%. Fe/Co/Al-Mt(U) had higher stability and reduced active component loss, after four catalytic cycles, the COD removal rate was still above 70%, and the active component Fe ion elution was only 0.59 mg·L-1.
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  • 收稿日期:  2019-07-31
李志亮, 赵彬侠, 刘林学, 贺贝贝, 孙丽, 张小里. 超声辅助离子交换法制备Fe/Co/Al-Mt催化剂及性能[J]. 环境化学, 2020, (10): 2929-2936. doi: 10.7524/j.issn.0254-6108.2019073102
引用本文: 李志亮, 赵彬侠, 刘林学, 贺贝贝, 孙丽, 张小里. 超声辅助离子交换法制备Fe/Co/Al-Mt催化剂及性能[J]. 环境化学, 2020, (10): 2929-2936. doi: 10.7524/j.issn.0254-6108.2019073102
shu
LI Zhiliang, ZHAO Binxia, LIU Linxue, HE Beibei, SUN Li, ZHANG Xiaoli. Preparation of Fe/Co/Al-Mt catalysts by ultrasound-assisted ion exchange method and its property investigation[J]. Environmental Chemistry, 2020, (10): 2929-2936. doi: 10.7524/j.issn.0254-6108.2019073102
Citation: LI Zhiliang, ZHAO Binxia, LIU Linxue, HE Beibei, SUN Li, ZHANG Xiaoli. Preparation of Fe/Co/Al-Mt catalysts by ultrasound-assisted ion exchange method and its property investigation[J]. Environmental Chemistry, 2020, (10): 2929-2936. doi: 10.7524/j.issn.0254-6108.2019073102
shu

超声辅助离子交换法制备Fe/Co/Al-Mt催化剂及性能

    通讯作者: 赵彬侠, E-mail: zhaobx@nwu.edu.cn ; 
  • 1. 西北大学, 化工学院, 西安, 710069;
  • 2. 西北大学, 食品科学与技术学院, 西安, 710069
  • 收稿日期:  2019-07-31
基金项目:

陕西省科技计划项目（2018GY-067）资助.

摘要: 以铁为活性组分，柱撑蒙脱土（Mt）为载体，分别采用传统离子交换法与超声辅助离子交换法制备Fe/Co/Al-Mt（C）与Fe/Co/Al-Mt（U）催化剂.通过FT-IR、XRD、DR UV-Vis、SEM和BET等表征手段分析催化剂的物化性质及表面结构，以甲基橙（MO）染料废水为目标降解物研究催化剂的催化性能，并借助叔丁醇/苯醌验证CWPO反应体系中·OH的产生及降解机理.结果表明，与Fe/Co/Al-Mt（C）相比，Fe/Co/Al-Mt（U）比表面积增大16.2%，孔径增大10.2%，活性组分分散更加均匀，催化活性明显提高，对甲基橙染料废水的COD去除率高达80.3%；并且Fe/Co/Al-Mt（U）催化剂稳定性更高且活性组分流失较少，在四次催化循环后COD去除率仍在70%以上，活性组分Fe离子溶出量仅为0.59 mg·L-1.

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