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Supported bimetallic Pd-Rh catalysts were prepared using the impregnation method. The effects of the active components content and the carrier on the catalytic activity of the bimetallic Pd-Rh catalysts were investigated with 4-fluorophenol (4-FP) as the representative fluorinated organic compounds (FOCs). The results showed that the presence of Rh significantly enhanced their catalytic activity for the hydrodefluorination (HDF) of 4-FP, and 2% Pd-1% Rh/AC exhibited good catalytic activity for the HDF of 4-FP, and the conversion of 4-FP over 2% Pd-1% Rh/AC reached 95.62% within 90min. Furthermore, the type of the carrier played a significant role on the catalytic activity of bimetallic Pd-Rh catalysts. 2%Pd-1%Rh/CB exhibited the highest catalytic activity for the HDF of 4-FP when carbon black (CB) was used as a carrier, and thus the complete HDF of 4-FP was achieved within 80min. Catalyst characterization (BET, ICP-MS, RS, TEM, and XPS) indicated that the carriers with more surface defects favored the catalysts exhibited higher catalytic activity, which in turn enabled 2%Pd-1%Rh/CB and 2%Pd-1%Rh/CNTs to exhibit higher catalytic activity for the HDF of 4-FP. Moreover, 2%Pd-1%Rh/CB possessed more Pd0, which is more conducive to the activation of the H2, and in turn promoted catalytic HDF of 4-FP. Thus, 2%Pd-1%Rh/CB possessed the highest catalytic activity for the HDF of 4-FP.

, authors=Su-jing LIU1, Gui-ying MA2, Rui-ning YIN1, Xin-bei LI3, Xu-tao GONG1, Ying LIU1, Xuan-xuan MA1, *, Chuan-hai XIA1, **, authorsList=Su-jing LIU, Gui-ying MA, Rui-ning YIN, Xin-bei LI, Xu-tao GONG, Ying LIU, Xuan-xuan MA, Chuan-hai XIA, authorCompany=null, correspAuthors=Xuan-xuan MA, Chuan-hai XIA, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1314917494742147193, articleId=1314917492527554679, tenantId=1146029695717560320, journalId=1234093305789726721, language=CN, title=负载型Pd-Rh催化剂催化4-氟苯酚加氢脱氟降解, columnId=1234106386565624579, journalTitle=中国环境科学, columnName=水污染与控制, runingTitle=null, highlight=null, articleAbstract=

采用浸渍法制备了负载型Pd-Rh双金属催化剂,并以4-氟苯酚(4-FP)为模型化合物,研究了活性组分Pd-Rh含量、载体等对Pd-Rh双金属催化剂催化4-FP加氢脱氟的影响.结果表明,Rh的存在显著提升催化剂对4-FP加氢脱氟的催化活性,且2%Pd-1%Rh/AC对4-FP的加氢脱氟表现出较好的催化活性,其催化4-FP在90min时的加氢脱氟转化率为95.62%.碳载体类型对Pd-Rh双金属催化剂的催化活性有着重要影响,炭黑(CB)作为载体时2%Pd-1%Rh/CB表现出最高的催化活性,2%Pd-1%Rh/CB催化下4-FP在80min内即可完全加氢脱氟.催化剂表征(BET、ICP-MS、RS、TEM和XPS)表明,这可能与CB载体的表面缺陷有关,载体表面缺陷越多,催化剂的催化活性越高;而且当Pd更多地以Pd0形式存在时,被Pd0吸附并活化产生的活性H*越多,越有利于4-FP的加氢脱氟降解,因而2%Pd-1%Rh/CB对4-FP的加氢脱氟表现出最高的催化活性.

, authors=刘苏静1, 马贵营2, 殷瑞宁1, 李昕蓓3, 公绪涛1, 刘莺1, 马宣宣1, *, 夏传海1, **, authorsList=刘苏静, 马贵营, 殷瑞宁, 李昕蓓, 公绪涛, 刘莺, 马宣宣, 夏传海, authorCompany=null, correspAuthors=马宣宣, 夏传海, authorNote=

刘苏静(1980-),女,山东威海人,讲师,博士,主要从事有机卤代污染物控制研究.发表论文10余篇..

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* 责任作者,副教授,
** 教授,
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刘苏静(1980-),女,山东威海人,讲师,博士,主要从事有机卤代污染物控制研究.发表论文10余篇..

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刘苏静(1980-),女,山东威海人,讲师,博士,主要从事有机卤代污染物控制研究.发表论文10余篇..

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负载型Pd-Rh催化剂催化4-氟苯酚加氢脱氟降解
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刘苏静 1 , 马贵营 2 , 殷瑞宁 1 , 李昕蓓 3 , 公绪涛 1 , 刘莺 1 , 马宣宣 1, * , 夏传海 1, **
中国环境科学 | 水污染与控制 2025,45(7): 3783-3790
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中国环境科学 |水污染与控制 2025 , 45 (7) : 3783 -3790
负载型Pd-Rh催化剂催化4-氟苯酚加氢脱氟降解
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刘苏静(1980-),女,山东威海人,讲师,博士,主要从事有机卤代污染物控制研究.发表论文10余篇..

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刘苏静1 , 马贵营2, 殷瑞宁1, 李昕蓓3, 公绪涛1, 刘莺1, 马宣宣1, * , 夏传海1, **
作者信息
  • 1.鲁东大学资源与环境工程学院,山东 烟台 264025
  • 2.济宁高新技术产业开发区第二高级中学,山东 济宁 272071
  • 3.西北农林科技大学资源环境学院,陕西 咸阳 712199
通讯作者:
* 责任作者,副教授,
** 教授,
作者简介:

刘苏静(1980-),女,山东威海人,讲师,博士,主要从事有机卤代污染物控制研究.发表论文10余篇..

Catalytic hydrodefluorination of 4-fluorophenol over supported Pd-Rh catalysts
Su-jing LIU1 , Gui-ying MA2, Rui-ning YIN1, Xin-bei LI3, Xu-tao GONG1, Ying LIU1, Xuan-xuan MA1, * , Chuan-hai XIA1, **
Affiliations
  • 1.School of Resources and Environmental Engineering, Ludong University, Yantai 264025, China
  • 2.Jining No. 2 High-tech Middle School, Jining 272071, China
  • 3.College of Natural Resources and Environment, Northwest A&F University, Xianyang 712199, China
出版时间: 2025-07-20
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采用浸渍法制备了负载型Pd-Rh双金属催化剂,并以4-氟苯酚(4-FP)为模型化合物,研究了活性组分Pd-Rh含量、载体等对Pd-Rh双金属催化剂催化4-FP加氢脱氟的影响.结果表明,Rh的存在显著提升催化剂对4-FP加氢脱氟的催化活性,且2%Pd-1%Rh/AC对4-FP的加氢脱氟表现出较好的催化活性,其催化4-FP在90min时的加氢脱氟转化率为95.62%.碳载体类型对Pd-Rh双金属催化剂的催化活性有着重要影响,炭黑(CB)作为载体时2%Pd-1%Rh/CB表现出最高的催化活性,2%Pd-1%Rh/CB催化下4-FP在80min内即可完全加氢脱氟.催化剂表征(BET、ICP-MS、RS、TEM和XPS)表明,这可能与CB载体的表面缺陷有关,载体表面缺陷越多,催化剂的催化活性越高;而且当Pd更多地以Pd0形式存在时,被Pd0吸附并活化产生的活性H*越多,越有利于4-FP的加氢脱氟降解,因而2%Pd-1%Rh/CB对4-FP的加氢脱氟表现出最高的催化活性.

氟代有机化合物(FOCs)  /  4-氟苯酚(4-FP)  /  催化  /  加氢脱氟  /  Pd-Rh双金属催化剂

Supported bimetallic Pd-Rh catalysts were prepared using the impregnation method. The effects of the active components content and the carrier on the catalytic activity of the bimetallic Pd-Rh catalysts were investigated with 4-fluorophenol (4-FP) as the representative fluorinated organic compounds (FOCs). The results showed that the presence of Rh significantly enhanced their catalytic activity for the hydrodefluorination (HDF) of 4-FP, and 2% Pd-1% Rh/AC exhibited good catalytic activity for the HDF of 4-FP, and the conversion of 4-FP over 2% Pd-1% Rh/AC reached 95.62% within 90min. Furthermore, the type of the carrier played a significant role on the catalytic activity of bimetallic Pd-Rh catalysts. 2%Pd-1%Rh/CB exhibited the highest catalytic activity for the HDF of 4-FP when carbon black (CB) was used as a carrier, and thus the complete HDF of 4-FP was achieved within 80min. Catalyst characterization (BET, ICP-MS, RS, TEM, and XPS) indicated that the carriers with more surface defects favored the catalysts exhibited higher catalytic activity, which in turn enabled 2%Pd-1%Rh/CB and 2%Pd-1%Rh/CNTs to exhibit higher catalytic activity for the HDF of 4-FP. Moreover, 2%Pd-1%Rh/CB possessed more Pd0, which is more conducive to the activation of the H2, and in turn promoted catalytic HDF of 4-FP. Thus, 2%Pd-1%Rh/CB possessed the highest catalytic activity for the HDF of 4-FP.

fluorinated organic compounds  /  4-fluorophenol (4-FP)  /  catalysis  /  hydrodefluorination (HDF)  /  bimetallic Pd-Rh catalyst
刘苏静, 马贵营, 殷瑞宁, 李昕蓓, 公绪涛, 刘莺, 马宣宣, 夏传海. 负载型Pd-Rh催化剂催化4-氟苯酚加氢脱氟降解. 中国环境科学, 2025 , 45 (7) : 3783 -3790 .
Su-jing LIU, Gui-ying MA, Rui-ning YIN, Xin-bei LI, Xu-tao GONG, Ying LIU, Xuan-xuan MA, Chuan-hai XIA. Catalytic hydrodefluorination of 4-fluorophenol over supported Pd-Rh catalysts[J]. China Environmental Science, 2025 , 45 (7) : 3783 -3790 .
  • 山东省高校“青创团队计划”项目(2022KJ123)
  • 山东省博士后创新项目(SDCX-ZG-202502097)
  • 山东省自然科学基金资助项目(ZR2022MD012)
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2025年第45卷第7期
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  • 接收时间:2024-12-10
  • 首发时间:2026-10-08
  • 出版时间:2025-07-20
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  • 收稿日期:2024-12-10
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山东省高校“青创团队计划”项目(2022KJ123)
山东省博士后创新项目(SDCX-ZG-202502097)
山东省自然科学基金资助项目(ZR2022MD012)
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    1.鲁东大学资源与环境工程学院,山东 烟台 264025
    2.济宁高新技术产业开发区第二高级中学,山东 济宁 272071
    3.西北农林科技大学资源环境学院,陕西 咸阳 712199

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