MOF-5@Ni Derived ZnO@Ni3ZnC0.7/PMS System for Organic Matter Removal: A Thorough Understanding of the Adsorption–Degradation Process
The heterogeneous catalytic activation of peroxymonosulfate (PMS) for wastewater treatment is attracting increased research interest. Therefore, it is essential to find a sustainable, economical, and effective activated material for wastewater treatment. In this study, metal–organic framework (MOF)-...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-05-01
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| Series: | Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095809922000765 |
| _version_ | 1797649650716508160 |
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| author | Youwen Shuai Xue Huang Benyin Zhang Lu Xiang Hao Xu Qian Ye Jinfeng Lu Jing Zhang |
| author_facet | Youwen Shuai Xue Huang Benyin Zhang Lu Xiang Hao Xu Qian Ye Jinfeng Lu Jing Zhang |
| author_sort | Youwen Shuai |
| collection | DOAJ |
| description | The heterogeneous catalytic activation of peroxymonosulfate (PMS) for wastewater treatment is attracting increased research interest. Therefore, it is essential to find a sustainable, economical, and effective activated material for wastewater treatment. In this study, metal–organic framework (MOF)-5 was used as the precursor, and a stable and recyclable material ZnO@Ni3ZnC0.7 that exhibited good adsorption and catalytic properties, was obtained by the addition of nickel and subsequent calcination. To investigate and optimize the practical application conditions, the elimination of rhodamine B (RhB) in water was selected as the model process. This study demonstrated that the degradation of organic matter in the system involved a coupling of the adsorption and degradation processes. Based on this, the mechanism of the entire process was proposed. The results of scanning electron microscopy, infrared spectrum analysis, and theoretical analysis confirmed that the van der Waals forces, electrostatic attraction, and hydrogen bonding influenced the adsorption process. Electron paramagnetic resonance analysis, masking experiments, and electrochemical tests conducted during the oxidative degradation process confirmed that the degradation mechanism of RhB included both radical and non-free radical pathways, and that the surface hydroxyl group was the key active site. The degradation of the adsorbed substrates enabled the regeneration of the active sites. The material regenerated using a simple method exhibited good efficiency for the removal of organic compounds in four-cycle tests. Moreover, this material can effectively remove a variety of organic pollutants, and can be easily recovered owing to its magnetic properties. The results demonstrated that the use of heterogeneous catalytic materials with good adsorption capacity could be an economical and beneficial strategy. |
| first_indexed | 2024-03-11T15:49:47Z |
| format | Article |
| id | doaj.art-3fb8a12aa9324064943637e7024a93bb |
| institution | Directory Open Access Journal |
| issn | 2095-8099 |
| language | English |
| last_indexed | 2024-03-11T15:49:47Z |
| publishDate | 2023-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Engineering |
| spelling | doaj.art-3fb8a12aa9324064943637e7024a93bb2023-10-26T04:17:43ZengElsevierEngineering2095-80992023-05-0124253263MOF-5@Ni Derived ZnO@Ni3ZnC0.7/PMS System for Organic Matter Removal: A Thorough Understanding of the Adsorption–Degradation ProcessYouwen Shuai0Xue Huang1Benyin Zhang2Lu Xiang3Hao Xu4Qian Ye5Jinfeng Lu6Jing Zhang7College of Architecture and Environment, Sichuan University, Chengdu 610065, ChinaCollege of Architecture and Environment, Sichuan University, Chengdu 610065, ChinaCollege of Architecture and Environment, Sichuan University, Chengdu 610065, ChinaCollege of Architecture and Environment, Sichuan University, Chengdu 610065, ChinaCollege of Architecture and Environment, Sichuan University, Chengdu 610065, ChinaCollege of Architecture and Environment, Sichuan University, Chengdu 610065, ChinaCollege of Environmental Science and Engineering, Nankai University, Tianjin 300071, China; Corresponding authors.College of Architecture and Environment, Sichuan University, Chengdu 610065, China; Corresponding authors.The heterogeneous catalytic activation of peroxymonosulfate (PMS) for wastewater treatment is attracting increased research interest. Therefore, it is essential to find a sustainable, economical, and effective activated material for wastewater treatment. In this study, metal–organic framework (MOF)-5 was used as the precursor, and a stable and recyclable material ZnO@Ni3ZnC0.7 that exhibited good adsorption and catalytic properties, was obtained by the addition of nickel and subsequent calcination. To investigate and optimize the practical application conditions, the elimination of rhodamine B (RhB) in water was selected as the model process. This study demonstrated that the degradation of organic matter in the system involved a coupling of the adsorption and degradation processes. Based on this, the mechanism of the entire process was proposed. The results of scanning electron microscopy, infrared spectrum analysis, and theoretical analysis confirmed that the van der Waals forces, electrostatic attraction, and hydrogen bonding influenced the adsorption process. Electron paramagnetic resonance analysis, masking experiments, and electrochemical tests conducted during the oxidative degradation process confirmed that the degradation mechanism of RhB included both radical and non-free radical pathways, and that the surface hydroxyl group was the key active site. The degradation of the adsorbed substrates enabled the regeneration of the active sites. The material regenerated using a simple method exhibited good efficiency for the removal of organic compounds in four-cycle tests. Moreover, this material can effectively remove a variety of organic pollutants, and can be easily recovered owing to its magnetic properties. The results demonstrated that the use of heterogeneous catalytic materials with good adsorption capacity could be an economical and beneficial strategy.http://www.sciencedirect.com/science/article/pii/S2095809922000765MOF-based catalystPeroxymonosulfateAdsorptionFree radicalNon-radical oxidation |
| spellingShingle | Youwen Shuai Xue Huang Benyin Zhang Lu Xiang Hao Xu Qian Ye Jinfeng Lu Jing Zhang MOF-5@Ni Derived ZnO@Ni3ZnC0.7/PMS System for Organic Matter Removal: A Thorough Understanding of the Adsorption–Degradation Process Engineering MOF-based catalyst Peroxymonosulfate Adsorption Free radical Non-radical oxidation |
| title | MOF-5@Ni Derived ZnO@Ni3ZnC0.7/PMS System for Organic Matter Removal: A Thorough Understanding of the Adsorption–Degradation Process |
| title_full | MOF-5@Ni Derived ZnO@Ni3ZnC0.7/PMS System for Organic Matter Removal: A Thorough Understanding of the Adsorption–Degradation Process |
| title_fullStr | MOF-5@Ni Derived ZnO@Ni3ZnC0.7/PMS System for Organic Matter Removal: A Thorough Understanding of the Adsorption–Degradation Process |
| title_full_unstemmed | MOF-5@Ni Derived ZnO@Ni3ZnC0.7/PMS System for Organic Matter Removal: A Thorough Understanding of the Adsorption–Degradation Process |
| title_short | MOF-5@Ni Derived ZnO@Ni3ZnC0.7/PMS System for Organic Matter Removal: A Thorough Understanding of the Adsorption–Degradation Process |
| title_sort | mof 5 ni derived zno ni3znc0 7 pms system for organic matter removal a thorough understanding of the adsorption degradation process |
| topic | MOF-based catalyst Peroxymonosulfate Adsorption Free radical Non-radical oxidation |
| url | http://www.sciencedirect.com/science/article/pii/S2095809922000765 |
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