Catalytic degradation of Acid Orange 7 in water by persulfate activated with CuFe2O4@RSDBC
In this study, a novel series of rectorite/sludge derived biochar (RSDBC) supporting CuFe _2 O _4 (CuFe _2 O _4 @RSDBC) composites were prepared as an effective catalyst to active persulfate (PS) for the removal of Acid Orange 7 (AO7) in water. The character of catalyst was analyzed by scanning elec...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2020-01-01
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| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/ab6253 |
| _version_ | 1827869603088302080 |
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| author | Kun Guan Peijiang Zhou Junye Zhang Longlong Zhu |
| author_facet | Kun Guan Peijiang Zhou Junye Zhang Longlong Zhu |
| author_sort | Kun Guan |
| collection | DOAJ |
| description | In this study, a novel series of rectorite/sludge derived biochar (RSDBC) supporting CuFe _2 O _4 (CuFe _2 O _4 @RSDBC) composites were prepared as an effective catalyst to active persulfate (PS) for the removal of Acid Orange 7 (AO7) in water. The character of catalyst was analyzed by scanning electron microscope (SEM), transmission electron microscopy (TEM), fourier transform infrared spectroscopy (FTIR) and x-ray diffraction (XRD). Various influencing factors including initial pH, PS concentration, catalyst dosage, initial dye concentration and reaction temperature were investigated. The optimal reaction conditions were found to be: PS concentration 2 mM; catalyst dosage 0.6 g l ^−1 ; initial pH value 7.0 and 25 °C of reaction temperature. Further radical quenching tests were performed by using ethanol, tert-butanol (TBA) and benzoquinone (BQ), which confirmed that sulfate radicals ( ${{{\rm{SO}}}_{4}}^{\cdot -}$ ) and hydroxyl radicals (HO•−) were the reactive species in the degradation process. The Gas chromatography-mass spectrometry (GC-MS) analysis was employed to determine the intermediate products and a plausible degradation pathway is proposed. In addition, the CuFe _2 O _4 @RSDBC sample exhibited high color removal ability (95%) and stable performance after three successive runs. At last, the catalyst proved a good removal effect for actual dye wastewater. These results indicate that CuFe _2 O _4 @RSDBC hybrids could be as effective catalysts for PS activation on dye pollutants elimination. |
| first_indexed | 2024-03-12T15:46:28Z |
| format | Article |
| id | doaj.art-dfb9ff9637304ddf9cda17dfce90b5cd |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:46:28Z |
| publishDate | 2020-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-dfb9ff9637304ddf9cda17dfce90b5cd2023-08-09T15:25:04ZengIOP PublishingMaterials Research Express2053-15912020-01-017101652910.1088/2053-1591/ab6253Catalytic degradation of Acid Orange 7 in water by persulfate activated with CuFe2O4@RSDBCKun Guan0https://orcid.org/0000-0001-8305-4968Peijiang Zhou1Junye Zhang2Longlong Zhu3School of Resource and Environmental Science, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Eco-environment Technology R&D and Service Center, Wuhan University , Wuhan 430079, People’s Republic of ChinaSchool of Resource and Environmental Science, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Eco-environment Technology R&D and Service Center, Wuhan University , Wuhan 430079, People’s Republic of ChinaSchool of Resource and Environmental Science, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Eco-environment Technology R&D and Service Center, Wuhan University , Wuhan 430079, People’s Republic of ChinaSchool of Resource and Environmental Science, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Eco-environment Technology R&D and Service Center, Wuhan University , Wuhan 430079, People’s Republic of ChinaIn this study, a novel series of rectorite/sludge derived biochar (RSDBC) supporting CuFe _2 O _4 (CuFe _2 O _4 @RSDBC) composites were prepared as an effective catalyst to active persulfate (PS) for the removal of Acid Orange 7 (AO7) in water. The character of catalyst was analyzed by scanning electron microscope (SEM), transmission electron microscopy (TEM), fourier transform infrared spectroscopy (FTIR) and x-ray diffraction (XRD). Various influencing factors including initial pH, PS concentration, catalyst dosage, initial dye concentration and reaction temperature were investigated. The optimal reaction conditions were found to be: PS concentration 2 mM; catalyst dosage 0.6 g l ^−1 ; initial pH value 7.0 and 25 °C of reaction temperature. Further radical quenching tests were performed by using ethanol, tert-butanol (TBA) and benzoquinone (BQ), which confirmed that sulfate radicals ( ${{{\rm{SO}}}_{4}}^{\cdot -}$ ) and hydroxyl radicals (HO•−) were the reactive species in the degradation process. The Gas chromatography-mass spectrometry (GC-MS) analysis was employed to determine the intermediate products and a plausible degradation pathway is proposed. In addition, the CuFe _2 O _4 @RSDBC sample exhibited high color removal ability (95%) and stable performance after three successive runs. At last, the catalyst proved a good removal effect for actual dye wastewater. These results indicate that CuFe _2 O _4 @RSDBC hybrids could be as effective catalysts for PS activation on dye pollutants elimination.https://doi.org/10.1088/2053-1591/ab6253catalystCuFe2O4@RSDBCcharacterpersulfate activationdegradation |
| spellingShingle | Kun Guan Peijiang Zhou Junye Zhang Longlong Zhu Catalytic degradation of Acid Orange 7 in water by persulfate activated with CuFe2O4@RSDBC Materials Research Express catalyst CuFe2O4@RSDBC character persulfate activation degradation |
| title | Catalytic degradation of Acid Orange 7 in water by persulfate activated with CuFe2O4@RSDBC |
| title_full | Catalytic degradation of Acid Orange 7 in water by persulfate activated with CuFe2O4@RSDBC |
| title_fullStr | Catalytic degradation of Acid Orange 7 in water by persulfate activated with CuFe2O4@RSDBC |
| title_full_unstemmed | Catalytic degradation of Acid Orange 7 in water by persulfate activated with CuFe2O4@RSDBC |
| title_short | Catalytic degradation of Acid Orange 7 in water by persulfate activated with CuFe2O4@RSDBC |
| title_sort | catalytic degradation of acid orange 7 in water by persulfate activated with cufe2o4 rsdbc |
| topic | catalyst CuFe2O4@RSDBC character persulfate activation degradation |
| url | https://doi.org/10.1088/2053-1591/ab6253 |
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