A Facile Microwave-Assisted Hydrothermal (MAH) Method of CdWO<sub>4</sub>/CdMoO<sub>4</sub> Heterostructures and Their Photocatalytic Properties
In this study, CdWO<sub>4</sub>/CdMoO<sub>4</sub> powders’ heterostructures were synthesized using the microwave-assisted hydrothermal method, characterized, and evaluated for their photocatalytic properties. The samples were analyzed using X-ray diffraction (XRD), Raman and...
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2025-05-01
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| author | Nivaldo F. Andrade Neto Onecima B. M. Ramalho Marcio D. Teodoro Mauricio R. D. Bomio Fabiana V. Motta |
| author_facet | Nivaldo F. Andrade Neto Onecima B. M. Ramalho Marcio D. Teodoro Mauricio R. D. Bomio Fabiana V. Motta |
| author_sort | Nivaldo F. Andrade Neto |
| collection | DOAJ |
| description | In this study, CdWO<sub>4</sub>/CdMoO<sub>4</sub> powders’ heterostructures were synthesized using the microwave-assisted hydrothermal method, characterized, and evaluated for their photocatalytic properties. The samples were analyzed using X-ray diffraction (XRD), Raman and ultraviolet-visible (UV-Vis) spectroscopy, field-emission scanning electron microscopy (FESEM), and photoluminescence (PL). The photocatalytic performance was assessed using methylene blue as a model pollutant. XRD patterns and Raman spectra confirmed the formation of heterostructures containing the Wolframite phase of CdWO<sub>4</sub> and the Scheelite phase of CdMoO<sub>4</sub>. FESEM micrographs revealed that the CdWO<sub>4</sub> phase exhibits a plate-like morphology, while the CdMoO<sub>4</sub> phase consists of irregular nanoparticles. Photocatalytic tests demonstrated that the 20Mo sample exhibited the best performance, degrading 96% of the dye after 2 h of reaction. The findings of this study indicate that CdWO<sub>4</sub>/CdMoO<sub>4</sub> heterostructures hold significant potential for photocatalytic applications in the degradation of cationic dyes. |
| format | Article |
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| institution | Kabale University |
| issn | 2571-6131 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
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| series | Ceramics |
| spelling | doaj-art-d781e259ec0c404f97ed68a26b58d3f92025-08-20T03:27:15ZengMDPI AGCeramics2571-61312025-05-01825210.3390/ceramics8020052A Facile Microwave-Assisted Hydrothermal (MAH) Method of CdWO<sub>4</sub>/CdMoO<sub>4</sub> Heterostructures and Their Photocatalytic PropertiesNivaldo F. Andrade Neto0Onecima B. M. Ramalho1Marcio D. Teodoro2Mauricio R. D. Bomio3Fabiana V. Motta4LSQM—Laboratory of Chemical Synthesis of Materials, Department of Materials Engineering, Federal University of Rio Grande do Norte—UFRN, Natal P.O. Box 1524, RN, BrazilLSQM—Laboratory of Chemical Synthesis of Materials, Department of Materials Engineering, Federal University of Rio Grande do Norte—UFRN, Natal P.O. Box 1524, RN, BrazilDepartament of Physics, Federal University of São Carlos, São Carlos 13565-905, SP, BrazilLSQM—Laboratory of Chemical Synthesis of Materials, Department of Materials Engineering, Federal University of Rio Grande do Norte—UFRN, Natal P.O. Box 1524, RN, BrazilLSQM—Laboratory of Chemical Synthesis of Materials, Department of Materials Engineering, Federal University of Rio Grande do Norte—UFRN, Natal P.O. Box 1524, RN, BrazilIn this study, CdWO<sub>4</sub>/CdMoO<sub>4</sub> powders’ heterostructures were synthesized using the microwave-assisted hydrothermal method, characterized, and evaluated for their photocatalytic properties. The samples were analyzed using X-ray diffraction (XRD), Raman and ultraviolet-visible (UV-Vis) spectroscopy, field-emission scanning electron microscopy (FESEM), and photoluminescence (PL). The photocatalytic performance was assessed using methylene blue as a model pollutant. XRD patterns and Raman spectra confirmed the formation of heterostructures containing the Wolframite phase of CdWO<sub>4</sub> and the Scheelite phase of CdMoO<sub>4</sub>. FESEM micrographs revealed that the CdWO<sub>4</sub> phase exhibits a plate-like morphology, while the CdMoO<sub>4</sub> phase consists of irregular nanoparticles. Photocatalytic tests demonstrated that the 20Mo sample exhibited the best performance, degrading 96% of the dye after 2 h of reaction. The findings of this study indicate that CdWO<sub>4</sub>/CdMoO<sub>4</sub> heterostructures hold significant potential for photocatalytic applications in the degradation of cationic dyes.https://www.mdpi.com/2571-6131/8/2/52MAH methodCdWO<sub>4</sub>/CdMoO<sub>4</sub> heterostructuresphotocatalysis |
| spellingShingle | Nivaldo F. Andrade Neto Onecima B. M. Ramalho Marcio D. Teodoro Mauricio R. D. Bomio Fabiana V. Motta A Facile Microwave-Assisted Hydrothermal (MAH) Method of CdWO<sub>4</sub>/CdMoO<sub>4</sub> Heterostructures and Their Photocatalytic Properties Ceramics MAH method CdWO<sub>4</sub>/CdMoO<sub>4</sub> heterostructures photocatalysis |
| title | A Facile Microwave-Assisted Hydrothermal (MAH) Method of CdWO<sub>4</sub>/CdMoO<sub>4</sub> Heterostructures and Their Photocatalytic Properties |
| title_full | A Facile Microwave-Assisted Hydrothermal (MAH) Method of CdWO<sub>4</sub>/CdMoO<sub>4</sub> Heterostructures and Their Photocatalytic Properties |
| title_fullStr | A Facile Microwave-Assisted Hydrothermal (MAH) Method of CdWO<sub>4</sub>/CdMoO<sub>4</sub> Heterostructures and Their Photocatalytic Properties |
| title_full_unstemmed | A Facile Microwave-Assisted Hydrothermal (MAH) Method of CdWO<sub>4</sub>/CdMoO<sub>4</sub> Heterostructures and Their Photocatalytic Properties |
| title_short | A Facile Microwave-Assisted Hydrothermal (MAH) Method of CdWO<sub>4</sub>/CdMoO<sub>4</sub> Heterostructures and Their Photocatalytic Properties |
| title_sort | facile microwave assisted hydrothermal mah method of cdwo sub 4 sub cdmoo sub 4 sub heterostructures and their photocatalytic properties |
| topic | MAH method CdWO<sub>4</sub>/CdMoO<sub>4</sub> heterostructures photocatalysis |
| url | https://www.mdpi.com/2571-6131/8/2/52 |
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