Bimetallic Fenton-like Catalysts in the Remediation of Dyes
Remediation of organic dyes in natural waters is a significant environmental need under active study. This review analyzes bimetallic catalytic degradation systems that are based on the Fenton chemistry concept and that generate reactive oxygen species (ROS) as the agent of dye breakdown. Recently d...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-12-01
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| Series: | Colorants |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2079-6447/3/1/1 |
| _version_ | 1797241564105277440 |
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| author | Lydia R. Milam Roy P. Planalp |
| author_facet | Lydia R. Milam Roy P. Planalp |
| author_sort | Lydia R. Milam |
| collection | DOAJ |
| description | Remediation of organic dyes in natural waters is a significant environmental need under active study. This review analyzes bimetallic catalytic degradation systems that are based on the Fenton chemistry concept and that generate reactive oxygen species (ROS) as the agent of dye breakdown. Recently developed advanced oxidation processes (AOPs) take advantage of bimetallic heterogeneous catalysts to facilitate rapid rates and full degradation. Catalysts based on two metals including iron, copper, molybdenum, cobalt and magnesium are discussed mechanistically as examples of effective radical ROS producers. The reactive oxygen species hydroxyl radical, superoxide radical, sulfate radical and singlet oxygen are discussed. System conditions for the best degradation are compared, with implementation techniques mentioned. The outlook for further studies of dye degradation is presented. |
| first_indexed | 2024-04-24T18:25:20Z |
| format | Article |
| id | doaj.art-1ffcf2f02c2b4468840a832c65f83f8f |
| institution | Directory Open Access Journal |
| issn | 2079-6447 |
| language | English |
| last_indexed | 2024-04-24T18:25:20Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Colorants |
| spelling | doaj.art-1ffcf2f02c2b4468840a832c65f83f8f2024-03-27T13:31:48ZengMDPI AGColorants2079-64472023-12-013111610.3390/colorants3010001Bimetallic Fenton-like Catalysts in the Remediation of DyesLydia R. Milam0Roy P. Planalp1Department of Chemistry, University of New Hampshire, Durham, NH 03824, USADepartment of Chemistry, University of New Hampshire, Durham, NH 03824, USARemediation of organic dyes in natural waters is a significant environmental need under active study. This review analyzes bimetallic catalytic degradation systems that are based on the Fenton chemistry concept and that generate reactive oxygen species (ROS) as the agent of dye breakdown. Recently developed advanced oxidation processes (AOPs) take advantage of bimetallic heterogeneous catalysts to facilitate rapid rates and full degradation. Catalysts based on two metals including iron, copper, molybdenum, cobalt and magnesium are discussed mechanistically as examples of effective radical ROS producers. The reactive oxygen species hydroxyl radical, superoxide radical, sulfate radical and singlet oxygen are discussed. System conditions for the best degradation are compared, with implementation techniques mentioned. The outlook for further studies of dye degradation is presented.https://www.mdpi.com/2079-6447/3/1/1dye degradationradical oxygen speciestransition-metal catalystsenvironmental remediation |
| spellingShingle | Lydia R. Milam Roy P. Planalp Bimetallic Fenton-like Catalysts in the Remediation of Dyes Colorants dye degradation radical oxygen species transition-metal catalysts environmental remediation |
| title | Bimetallic Fenton-like Catalysts in the Remediation of Dyes |
| title_full | Bimetallic Fenton-like Catalysts in the Remediation of Dyes |
| title_fullStr | Bimetallic Fenton-like Catalysts in the Remediation of Dyes |
| title_full_unstemmed | Bimetallic Fenton-like Catalysts in the Remediation of Dyes |
| title_short | Bimetallic Fenton-like Catalysts in the Remediation of Dyes |
| title_sort | bimetallic fenton like catalysts in the remediation of dyes |
| topic | dye degradation radical oxygen species transition-metal catalysts environmental remediation |
| url | https://www.mdpi.com/2079-6447/3/1/1 |
| work_keys_str_mv | AT lydiarmilam bimetallicfentonlikecatalystsintheremediationofdyes AT roypplanalp bimetallicfentonlikecatalystsintheremediationofdyes |