Hydrothermal and Co-Precipitated Synthesis of Chalcopyrite for Fenton-like Degradation toward Rhodamine B
In this study, Chalcopyrite (CuFeS<sub>2</sub>) was prepared by a hydrothermal and co-precipitation method, being represented as H-CuFeS<sub>2</sub> and C-CuFeS<sub>2</sub>, respectively. The prepared CuFeS<sub>2</sub> samples were characterized by sca...
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MDPI AG
2022-01-01
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| author | Po-Yu Wen Ting-Yu Lai Tsunghsueh Wu Yang-Wei Lin |
| author_facet | Po-Yu Wen Ting-Yu Lai Tsunghsueh Wu Yang-Wei Lin |
| author_sort | Po-Yu Wen |
| collection | DOAJ |
| description | In this study, Chalcopyrite (CuFeS<sub>2</sub>) was prepared by a hydrothermal and co-precipitation method, being represented as H-CuFeS<sub>2</sub> and C-CuFeS<sub>2</sub>, respectively. The prepared CuFeS<sub>2</sub> samples were characterized by scanning electron microscope (SEM), transmission electron microscope (TEM), energy dispersive X-ray spectroscopy mapping (EDS-mapping), powder X-ray diffractometer (XRD), X-ray photoelectron spectrometry (XPS), and Raman microscope. Rhodamine B (RhB, 20 ppm) was used as the target pollutant to evaluate the degradation performance by the prepared CuFeS<sub>2</sub> samples. The H-CuFeS<sub>2</sub> samples (20 mg) in the presence of Na<sub>2</sub>S<sub>2</sub>O<sub>8</sub> (4 mM) exhibited excellent degradation efficiency (98.8% within 10 min). Through free radical trapping experiment, the major active species were •SO<sub>4</sub><sup>−</sup> radicals and •OH radicals involved the RhB degradation. Furthermore, •SO<sub>4</sub><sup>−</sup> radicals produced from the prepared samples were evaluated by iodometric titration. In addition, one possible degradation mechanism was proposed. Finally, the prepared H-CuFeS<sub>2</sub> samples were used to degrade different dyestuff (rhodamine 6G, methylene blue, and methyl orange) and organic pollutant (bisphenol A) in the different environmental water samples (pond water and seawater) with 10.1% mineral efficiency improvement comparing to traditional Fenton reaction. |
| first_indexed | 2024-03-09T22:22:29Z |
| format | Article |
| id | doaj.art-b7de21ed64e240499f4504892d54654d |
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| language | English |
| last_indexed | 2024-03-09T22:22:29Z |
| publishDate | 2022-01-01 |
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| spelling | doaj.art-b7de21ed64e240499f4504892d54654d2023-11-23T19:12:08ZengMDPI AGCatalysts2073-43442022-01-0112215210.3390/catal12020152Hydrothermal and Co-Precipitated Synthesis of Chalcopyrite for Fenton-like Degradation toward Rhodamine BPo-Yu Wen0Ting-Yu Lai1Tsunghsueh Wu2Yang-Wei Lin3Department of Chemistry, National Changhua University of Education, 1 Jin-De Road, Changhua City 50007, TaiwanDepartment of Chemistry, National Changhua University of Education, 1 Jin-De Road, Changhua City 50007, TaiwanDepartment of Chemistry, University of Wisconsin-Platteville, 1 University Plaza, Platteville, WI 53818-3099, USADepartment of Chemistry, National Changhua University of Education, 1 Jin-De Road, Changhua City 50007, TaiwanIn this study, Chalcopyrite (CuFeS<sub>2</sub>) was prepared by a hydrothermal and co-precipitation method, being represented as H-CuFeS<sub>2</sub> and C-CuFeS<sub>2</sub>, respectively. The prepared CuFeS<sub>2</sub> samples were characterized by scanning electron microscope (SEM), transmission electron microscope (TEM), energy dispersive X-ray spectroscopy mapping (EDS-mapping), powder X-ray diffractometer (XRD), X-ray photoelectron spectrometry (XPS), and Raman microscope. Rhodamine B (RhB, 20 ppm) was used as the target pollutant to evaluate the degradation performance by the prepared CuFeS<sub>2</sub> samples. The H-CuFeS<sub>2</sub> samples (20 mg) in the presence of Na<sub>2</sub>S<sub>2</sub>O<sub>8</sub> (4 mM) exhibited excellent degradation efficiency (98.8% within 10 min). Through free radical trapping experiment, the major active species were •SO<sub>4</sub><sup>−</sup> radicals and •OH radicals involved the RhB degradation. Furthermore, •SO<sub>4</sub><sup>−</sup> radicals produced from the prepared samples were evaluated by iodometric titration. In addition, one possible degradation mechanism was proposed. Finally, the prepared H-CuFeS<sub>2</sub> samples were used to degrade different dyestuff (rhodamine 6G, methylene blue, and methyl orange) and organic pollutant (bisphenol A) in the different environmental water samples (pond water and seawater) with 10.1% mineral efficiency improvement comparing to traditional Fenton reaction.https://www.mdpi.com/2073-4344/12/2/152hydrothermal preparationco-precipitationCuFeS<sub>2</sub>Fenton-like reactiondegradationenvironmental water samples |
| spellingShingle | Po-Yu Wen Ting-Yu Lai Tsunghsueh Wu Yang-Wei Lin Hydrothermal and Co-Precipitated Synthesis of Chalcopyrite for Fenton-like Degradation toward Rhodamine B Catalysts hydrothermal preparation co-precipitation CuFeS<sub>2</sub> Fenton-like reaction degradation environmental water samples |
| title | Hydrothermal and Co-Precipitated Synthesis of Chalcopyrite for Fenton-like Degradation toward Rhodamine B |
| title_full | Hydrothermal and Co-Precipitated Synthesis of Chalcopyrite for Fenton-like Degradation toward Rhodamine B |
| title_fullStr | Hydrothermal and Co-Precipitated Synthesis of Chalcopyrite for Fenton-like Degradation toward Rhodamine B |
| title_full_unstemmed | Hydrothermal and Co-Precipitated Synthesis of Chalcopyrite for Fenton-like Degradation toward Rhodamine B |
| title_short | Hydrothermal and Co-Precipitated Synthesis of Chalcopyrite for Fenton-like Degradation toward Rhodamine B |
| title_sort | hydrothermal and co precipitated synthesis of chalcopyrite for fenton like degradation toward rhodamine b |
| topic | hydrothermal preparation co-precipitation CuFeS<sub>2</sub> Fenton-like reaction degradation environmental water samples |
| url | https://www.mdpi.com/2073-4344/12/2/152 |
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