Dyes Degradation Using Cooper-Nickel Ferrite and Its Tunable Structural and Photocatalytic Properties
Water pollution is a serious worldwide problem. Among its pollutants, dyes that are overused by various types of industries and are resistant to conventional effluent treatments stand out. In this study, mixed copper and nickel ferrites Ni<sub>x</sub>Cu<sub>(1-x)</sub>Fe<s...
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MDPI AG
2024-01-01
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| Online Access: | https://www.mdpi.com/2073-4344/14/1/73 |
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| author | Ila Gabriele Diniz Dias de Azevedo Marco Antonio Morales Torres Carlson Pereira de Souza André Luis Lopes Moriyama |
| author_facet | Ila Gabriele Diniz Dias de Azevedo Marco Antonio Morales Torres Carlson Pereira de Souza André Luis Lopes Moriyama |
| author_sort | Ila Gabriele Diniz Dias de Azevedo |
| collection | DOAJ |
| description | Water pollution is a serious worldwide problem. Among its pollutants, dyes that are overused by various types of industries and are resistant to conventional effluent treatments stand out. In this study, mixed copper and nickel ferrites Ni<sub>x</sub>Cu<sub>(1-x)</sub>Fe<sub>2</sub>O<sub>4</sub> (x = 0, 0.2, 0.4, 0.6, 0.8 e 1.0), were produced by the EDTA-Citrate complexation method, characterized and applied in photocatalysis with methylene blue (MB) and rhodamine B (RhB) dyes, varying the reaction pH between 2, 6 and 10. The ferrites with the highest percentages of copper had a tetragonal structure, while those with the highest percentages of nickel had a cubic structure, all with inverse spinel and all presenting bandgap values lower than 2 eV. Samples with higher percentages of copper (x = 0 and 0.2) at pH 10 showed degradation of approximately 55% for RhB and 40% for MB. A mixture of MB and RhB was also evaluated, showing a greater removal of methylene blue due to its preferential adsorption on the surface of the material. In this way, mixed copper and nickel ferrites proved promising as catalysts in photocatalytic processes. |
| first_indexed | 2024-03-08T11:02:41Z |
| format | Article |
| id | doaj.art-e3afec533bc04eac9cfaffea3e222eab |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-08T11:02:41Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
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| spelling | doaj.art-e3afec533bc04eac9cfaffea3e222eab2024-01-26T15:41:20ZengMDPI AGCatalysts2073-43442024-01-011417310.3390/catal14010073Dyes Degradation Using Cooper-Nickel Ferrite and Its Tunable Structural and Photocatalytic PropertiesIla Gabriele Diniz Dias de Azevedo0Marco Antonio Morales Torres1Carlson Pereira de Souza2André Luis Lopes Moriyama3Departamento de Engenharia Química, Universidade Federal do Rio Grande do Norte, Natal CEP 59078-970, RN, BrazilDepartamento de Física Teórica e Experimental, Universidade Federal do Rio Grande do Norte, Natal CEP 59078-970, RN, BrazilDepartamento de Engenharia Química, Universidade Federal do Rio Grande do Norte, Natal CEP 59078-970, RN, BrazilDepartamento de Engenharia Química, Universidade Federal do Rio Grande do Norte, Natal CEP 59078-970, RN, BrazilWater pollution is a serious worldwide problem. Among its pollutants, dyes that are overused by various types of industries and are resistant to conventional effluent treatments stand out. In this study, mixed copper and nickel ferrites Ni<sub>x</sub>Cu<sub>(1-x)</sub>Fe<sub>2</sub>O<sub>4</sub> (x = 0, 0.2, 0.4, 0.6, 0.8 e 1.0), were produced by the EDTA-Citrate complexation method, characterized and applied in photocatalysis with methylene blue (MB) and rhodamine B (RhB) dyes, varying the reaction pH between 2, 6 and 10. The ferrites with the highest percentages of copper had a tetragonal structure, while those with the highest percentages of nickel had a cubic structure, all with inverse spinel and all presenting bandgap values lower than 2 eV. Samples with higher percentages of copper (x = 0 and 0.2) at pH 10 showed degradation of approximately 55% for RhB and 40% for MB. A mixture of MB and RhB was also evaluated, showing a greater removal of methylene blue due to its preferential adsorption on the surface of the material. In this way, mixed copper and nickel ferrites proved promising as catalysts in photocatalytic processes.https://www.mdpi.com/2073-4344/14/1/73copper-nickel ferritephotocataysismethylene bluerhodamine B |
| spellingShingle | Ila Gabriele Diniz Dias de Azevedo Marco Antonio Morales Torres Carlson Pereira de Souza André Luis Lopes Moriyama Dyes Degradation Using Cooper-Nickel Ferrite and Its Tunable Structural and Photocatalytic Properties Catalysts copper-nickel ferrite photocataysis methylene blue rhodamine B |
| title | Dyes Degradation Using Cooper-Nickel Ferrite and Its Tunable Structural and Photocatalytic Properties |
| title_full | Dyes Degradation Using Cooper-Nickel Ferrite and Its Tunable Structural and Photocatalytic Properties |
| title_fullStr | Dyes Degradation Using Cooper-Nickel Ferrite and Its Tunable Structural and Photocatalytic Properties |
| title_full_unstemmed | Dyes Degradation Using Cooper-Nickel Ferrite and Its Tunable Structural and Photocatalytic Properties |
| title_short | Dyes Degradation Using Cooper-Nickel Ferrite and Its Tunable Structural and Photocatalytic Properties |
| title_sort | dyes degradation using cooper nickel ferrite and its tunable structural and photocatalytic properties |
| topic | copper-nickel ferrite photocataysis methylene blue rhodamine B |
| url | https://www.mdpi.com/2073-4344/14/1/73 |
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