Efficient removal of organic pollutant by activation of persulfate with magnetic Co3O4/CoFe2O4 composite
In this study, magnetic spinel Co3O4/CoFe2O4 composite were synthesized by the mechanical mixing of both powdered pristine samples. Then the catalyst was characterized by TEM, SEM, XRD, BET, XPS and VSM measurement. Next, Co3O4/CoFe2O4 composite was applied to degrade rhodamine B (RhB) in water by a...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2020-05-01
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| Series: | Arabian Journal of Chemistry |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1878535220300800 |
| _version_ | 1818278634159341568 |
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| author | Huixuan Zhang Li-chao Nengzi Yu Liu Yingjie Gao Xiuwen Cheng |
| author_facet | Huixuan Zhang Li-chao Nengzi Yu Liu Yingjie Gao Xiuwen Cheng |
| author_sort | Huixuan Zhang |
| collection | DOAJ |
| description | In this study, magnetic spinel Co3O4/CoFe2O4 composite were synthesized by the mechanical mixing of both powdered pristine samples. Then the catalyst was characterized by TEM, SEM, XRD, BET, XPS and VSM measurement. Next, Co3O4/CoFe2O4 composite was applied to degrade rhodamine B (RhB) in water by activating persulfate. Results showed that Co3O4/CoFe2O4 composite exhibited high efficiency for removal of RhB, and 95.59% of it could be degraded in 45 min. Besides, the effects of parameters, such as initial pH, PS dosage, Co3O4/CoFe2O4 composite dosage, initial concentration of RhB and temperture were studied. Also, the effects of coexisting anions on RhB degradation were observed and explained. Furthermore, we conducted the quenching experiment and found that sulfate radical and hydroxyl radicals were the main active radicals in the degradation process. Finally, recycle experiments proved that Co3O4/CoFe2O4 had a good stability for RhB degradation. In short, Co3O4/CoFe2O4 composite is a promising catalyst for wastewater treatment. |
| first_indexed | 2024-12-12T23:20:33Z |
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| id | doaj.art-ee8856132475436185ad7452400e63e3 |
| institution | Directory Open Access Journal |
| issn | 1878-5352 |
| language | English |
| last_indexed | 2024-12-12T23:20:33Z |
| publishDate | 2020-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Arabian Journal of Chemistry |
| spelling | doaj.art-ee8856132475436185ad7452400e63e32022-12-22T00:08:18ZengElsevierArabian Journal of Chemistry1878-53522020-05-0113553325344Efficient removal of organic pollutant by activation of persulfate with magnetic Co3O4/CoFe2O4 compositeHuixuan Zhang0Li-chao Nengzi1Yu Liu2Yingjie Gao3Xiuwen Cheng4Key Laboratory of Western China's Environmental Systems (Ministry of Education) and Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, ChinaAcademy of Economics and Environmental Sciences, Xichang University, Xichang 615000, ChinaKey Laboratory of Western China's Environmental Systems (Ministry of Education) and Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, ChinaKey Laboratory of Western China's Environmental Systems (Ministry of Education) and Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, ChinaKey Laboratory of Western China's Environmental Systems (Ministry of Education) and Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China; Academy of Economics and Environmental Sciences, Xichang University, Xichang 615000, China; Corresponding author at: College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, PR China.In this study, magnetic spinel Co3O4/CoFe2O4 composite were synthesized by the mechanical mixing of both powdered pristine samples. Then the catalyst was characterized by TEM, SEM, XRD, BET, XPS and VSM measurement. Next, Co3O4/CoFe2O4 composite was applied to degrade rhodamine B (RhB) in water by activating persulfate. Results showed that Co3O4/CoFe2O4 composite exhibited high efficiency for removal of RhB, and 95.59% of it could be degraded in 45 min. Besides, the effects of parameters, such as initial pH, PS dosage, Co3O4/CoFe2O4 composite dosage, initial concentration of RhB and temperture were studied. Also, the effects of coexisting anions on RhB degradation were observed and explained. Furthermore, we conducted the quenching experiment and found that sulfate radical and hydroxyl radicals were the main active radicals in the degradation process. Finally, recycle experiments proved that Co3O4/CoFe2O4 had a good stability for RhB degradation. In short, Co3O4/CoFe2O4 composite is a promising catalyst for wastewater treatment.http://www.sciencedirect.com/science/article/pii/S1878535220300800Co3O4/CoFe2O4 compositePersulfateRhodamine BSulfate radicalsHydroxyl radicals |
| spellingShingle | Huixuan Zhang Li-chao Nengzi Yu Liu Yingjie Gao Xiuwen Cheng Efficient removal of organic pollutant by activation of persulfate with magnetic Co3O4/CoFe2O4 composite Arabian Journal of Chemistry Co3O4/CoFe2O4 composite Persulfate Rhodamine B Sulfate radicals Hydroxyl radicals |
| title | Efficient removal of organic pollutant by activation of persulfate with magnetic Co3O4/CoFe2O4 composite |
| title_full | Efficient removal of organic pollutant by activation of persulfate with magnetic Co3O4/CoFe2O4 composite |
| title_fullStr | Efficient removal of organic pollutant by activation of persulfate with magnetic Co3O4/CoFe2O4 composite |
| title_full_unstemmed | Efficient removal of organic pollutant by activation of persulfate with magnetic Co3O4/CoFe2O4 composite |
| title_short | Efficient removal of organic pollutant by activation of persulfate with magnetic Co3O4/CoFe2O4 composite |
| title_sort | efficient removal of organic pollutant by activation of persulfate with magnetic co3o4 cofe2o4 composite |
| topic | Co3O4/CoFe2O4 composite Persulfate Rhodamine B Sulfate radicals Hydroxyl radicals |
| url | http://www.sciencedirect.com/science/article/pii/S1878535220300800 |
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