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Multi-metal catalysts Mn-Cu-Co-Ce/TiO2, Mn-Ce-Co/TiO2, and Mn-Ce-Cu/TiO2 were synthesized via the impregnation method. Among them, Mn-Cu-Co-Ce/TiO2 was characterized before and after the reaction using BET, XPS, O2-TPD, FT-IR, SEM-EDS, and XRD techniques. The catalytic performance of the catalysts for isopropanol degradation in a non-thermal plasma (NTP) synergistic system was investigated. The effects of initial concentration, gas flow rate, oxygen content, and catalyst water content on degradation efficiency were systematically analyzed. Organic byproducts generated during the degradation process were detected using gas chromatography-mass spectrometry (GC-MS), and the degradation mechanism under NTP conditions was explored. The results indicated that the NTP-assisted multi-metal catalyst system exhibited over 54% improvement in degradation efficiency compared to NTP alone, achieving a removal rate of 90.22%. CO2 selectivity also increased by approximately 34%, reaching 63.97%. In the synergistic system, degradation efficiency was negatively correlated with initial concentration, gas flow rate, and catalyst water content, while it was positively correlated with voltage. Moreover, the formation of byproducts such as O3was effectively suppressed. The degradation path of isopropyl alcohol may involve multiple aspects, including direct oxidation mineralization under the guidance of NTP, intermediate oxidation process, and deep redox reactions.

, authors=Bei-jia XIE, Ji-wu LI*, Xiu-juan TANG**, authorsList=Bei-jia XIE, Ji-wu LI, Xiu-juan TANG, authorCompany=null, correspAuthors=Ji-wu LI, Xiu-juan TANG, 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=1314917716075574021, articleId=1314917713881953026, tenantId=1146029695717560320, journalId=1234093305789726721, language=CN, title=低温等离子体场中多元金属催化剂降解异丙醇的特性与机理, 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Mn-Cu-Co-Ce/TiO2、Mn-Ce-Co/TiO2和Mn-Ce-Cu/TiO2为多元金属催化剂,通过BET、XPS、O2-TPD、FT-IR、SEM-EDS和XRD对反应前后的Mn-Cu-Co-Ce/TiO2进行表征,研究其在低温放电等离子体(NTP)场中催化剂体对异丙醇的催化降解性能,并分析初始浓度、气量、氧气含量及催化剂含水量等条件对降解效率的影响.应用气相色谱-质谱(GC-MS)对降解过程中产生的有机副产物进行检测,探讨NTP场中协同催化降解机理.结果表明,NTP协同多元催化剂的降解效率相较于单独NTP降解,提高54%以上,达90.22,CO2选择性也提高约34%,达63.97%.在协同催化反应中,降解效率与初始浓度、气量和催化剂含水量呈负相关,与电压呈正相关,同时可以有效地抑制O3等副产物的产生.NTP协同催化氧化异丙醇的降解路径可能涵盖多个机制:如单独NTP条件下的少量矿化、中间氧化阶段以及深度氧化还原过程.

, authors=谢贝嘉, 李济吾*, 唐秀娟**, authorsList=谢贝嘉, 李济吾, 唐秀娟, authorCompany=null, correspAuthors=李济吾, 唐秀娟, authorNote=

谢贝嘉(1997-),男,浙江台州人,浙江工商大学硕士研究生,主要从事大气复合污染控制研究.发表论文1篇..

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* 责任作者,教授,
** 讲师,
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谢贝嘉(1997-),男,浙江台州人,浙江工商大学硕士研究生,主要从事大气复合污染控制研究.发表论文1篇..

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谢贝嘉(1997-),男,浙江台州人,浙江工商大学硕士研究生,主要从事大气复合污染控制研究.发表论文1篇..

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低温等离子体场中多元金属催化剂降解异丙醇的特性与机理
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谢贝嘉 , 李济吾 * , 唐秀娟 **
中国环境科学 | 水污染与控制 2025,45(8): 4365-4376
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中国环境科学 |水污染与控制 2025 , 45 (8) : 4365 -4376
低温等离子体场中多元金属催化剂降解异丙醇的特性与机理
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谢贝嘉 , 李济吾* , 唐秀娟**
作者信息
  • 浙江工商大学环境科学与工程学院,浙江 杭州 310018
通讯作者:
* 责任作者,教授,
作者简介:

谢贝嘉(1997-),男,浙江台州人,浙江工商大学硕士研究生,主要从事大气复合污染控制研究.发表论文1篇..

Mechanism and degradation behavior of isopropanol by non-thermal plasma synergized with multi-metal catalysts
Bei-jia XIE , Ji-wu LI* , Xiu-juan TANG**
Affiliations
  • School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
出版时间: 2025-08-20
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采用浸渍法制备Mn-Cu-Co-Ce/TiO2、Mn-Ce-Co/TiO2和Mn-Ce-Cu/TiO2为多元金属催化剂,通过BET、XPS、O2-TPD、FT-IR、SEM-EDS和XRD对反应前后的Mn-Cu-Co-Ce/TiO2进行表征,研究其在低温放电等离子体(NTP)场中催化剂体对异丙醇的催化降解性能,并分析初始浓度、气量、氧气含量及催化剂含水量等条件对降解效率的影响.应用气相色谱-质谱(GC-MS)对降解过程中产生的有机副产物进行检测,探讨NTP场中协同催化降解机理.结果表明,NTP协同多元催化剂的降解效率相较于单独NTP降解,提高54%以上,达90.22,CO2选择性也提高约34%,达63.97%.在协同催化反应中,降解效率与初始浓度、气量和催化剂含水量呈负相关,与电压呈正相关,同时可以有效地抑制O3等副产物的产生.NTP协同催化氧化异丙醇的降解路径可能涵盖多个机制:如单独NTP条件下的少量矿化、中间氧化阶段以及深度氧化还原过程.

异丙醇  /  多元催化剂  /  低温等离子体  /  协同催化

Multi-metal catalysts Mn-Cu-Co-Ce/TiO2, Mn-Ce-Co/TiO2, and Mn-Ce-Cu/TiO2 were synthesized via the impregnation method. Among them, Mn-Cu-Co-Ce/TiO2 was characterized before and after the reaction using BET, XPS, O2-TPD, FT-IR, SEM-EDS, and XRD techniques. The catalytic performance of the catalysts for isopropanol degradation in a non-thermal plasma (NTP) synergistic system was investigated. The effects of initial concentration, gas flow rate, oxygen content, and catalyst water content on degradation efficiency were systematically analyzed. Organic byproducts generated during the degradation process were detected using gas chromatography-mass spectrometry (GC-MS), and the degradation mechanism under NTP conditions was explored. The results indicated that the NTP-assisted multi-metal catalyst system exhibited over 54% improvement in degradation efficiency compared to NTP alone, achieving a removal rate of 90.22%. CO2 selectivity also increased by approximately 34%, reaching 63.97%. In the synergistic system, degradation efficiency was negatively correlated with initial concentration, gas flow rate, and catalyst water content, while it was positively correlated with voltage. Moreover, the formation of byproducts such as O3was effectively suppressed. The degradation path of isopropyl alcohol may involve multiple aspects, including direct oxidation mineralization under the guidance of NTP, intermediate oxidation process, and deep redox reactions.

isopropanol  /  multi-metal catalyst  /  non-thermal plasma  /  synergistic catalysis
谢贝嘉, 李济吾, 唐秀娟. 低温等离子体场中多元金属催化剂降解异丙醇的特性与机理. 中国环境科学, 2025 , 45 (8) : 4365 -4376 .
Bei-jia XIE, Ji-wu LI, Xiu-juan TANG. Mechanism and degradation behavior of isopropanol by non-thermal plasma synergized with multi-metal catalysts[J]. China Environmental Science, 2025 , 45 (8) : 4365 -4376 .
  • 浙江省基础公益研究计划项目(LGF22E08001)
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  • 接收时间:2025-01-02
  • 首发时间:2026-10-08
  • 出版时间:2025-08-20
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  • 收稿日期:2025-01-02
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浙江省基础公益研究计划项目(LGF22E08001)
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    浙江工商大学环境科学与工程学院,浙江 杭州 310018

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2种不同金属材料的力学参数
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genus
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species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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