Microwave-Assisted Synthesis of Flower-like MnMoO<sub>4</sub> Nanostructures and Their Photocatalytic Performance
This article describes an affordable method for the synthesis of MnMoO<sub>4</sub> nanoflowers through the microwave synthesis approach. By manipulating the reaction parameters like solvent, pH, microwave power, and irradiation duration along this pathway, various nanostructures can be a...
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2024-03-01
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| author | Muthamizh Selvamani Arulvarman Kesavan Arunachalam Arulraj Praveen C. Ramamurthy Mostafizur Rahaman Saravanan Pandiaraj Muthu Thiruvengadam Elisban Juani Sacari Sacari Elmer Marcial Limache Sandoval Mangalaraja Ramalinga Viswanathan |
| author_facet | Muthamizh Selvamani Arulvarman Kesavan Arunachalam Arulraj Praveen C. Ramamurthy Mostafizur Rahaman Saravanan Pandiaraj Muthu Thiruvengadam Elisban Juani Sacari Sacari Elmer Marcial Limache Sandoval Mangalaraja Ramalinga Viswanathan |
| author_sort | Muthamizh Selvamani |
| collection | DOAJ |
| description | This article describes an affordable method for the synthesis of MnMoO<sub>4</sub> nanoflowers through the microwave synthesis approach. By manipulating the reaction parameters like solvent, pH, microwave power, and irradiation duration along this pathway, various nanostructures can be acquired. The synthesized nanoflowers were analyzed by using a powder X-ray diffractometer (XRD), field emission scanning electron microscopy (FE-SEM) with energy dispersive X-ray spectroscopy (EDS), Fourier transform infrared spectroscopy (FT-IR), and UV–vis diffuse reflectance spectroscopy (UV–DRS) to determine their crystalline nature, morphological and functional group, and optical properties, respectively. X-ray photoelectron spectroscopy (XPS) was performed for the examination of elemental composition and chemical states by qualitative and quantitative analysis. The results of the investigations demonstrated that the MnMoO<sub>4</sub> nanostructures with good crystallinity and distinct shape were formed successfully. The synthesized MnMoO<sub>4</sub> nanoflowers were tested for their efficiency as a photocatalyst in the degradation studies of methylene blue (MB) as model organic contaminants in an aqueous medium under visible light, which showed their photocatalytic activity with a degradation of 85%. Through the band position calculations using the electronegative value of MnMoO<sub>4</sub>, the photocatalytic mechanism of the nanostructures was proposed. The results indicated that the effective charge separation, and transfer mechanisms, in addition to the flower-like shape, were responsible for the photocatalytic performance. The stability of the recovered photocatalyst was examined through its recyclability in the degradation of MB. Leveraging MnMoO<sub>4</sub>’s photocatalytic properties, future studies may focus on scaling up these processes for practical and large-scale environmental remediation. |
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| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-04-24T10:41:34Z |
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| spelling | doaj.art-c3224934fd564a2d88cf51703a7b616f2024-04-12T13:21:42ZengMDPI AGMaterials1996-19442024-03-01177145110.3390/ma17071451Microwave-Assisted Synthesis of Flower-like MnMoO<sub>4</sub> Nanostructures and Their Photocatalytic PerformanceMuthamizh Selvamani0Arulvarman Kesavan1Arunachalam Arulraj2Praveen C. Ramamurthy3Mostafizur Rahaman4Saravanan Pandiaraj5Muthu Thiruvengadam6Elisban Juani Sacari Sacari7Elmer Marcial Limache Sandoval8Mangalaraja Ramalinga Viswanathan9Department of Physiology, Saveetha Dental College & Hospitals, Saveetha Institute of Medical & Technical Sciences, Saveetha University, Chennai 600077, Tamil Nadu, IndiaDepartment of Physics & Nanotechnology, SRM Institute of Science & Technology, Kattankulathur 603203, Tamil Nadu, IndiaDepartamento de Electricidad, Facultad de Ingeniería, Universidad Tecnológica Metropolitana (UTEM), Macul, Santiago 7800002, ChileDepartment of Materials Engineering, Indian Institute of Science, Bangalore 560012, Karnataka, IndiaDepartment of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi ArabiaDepartment of Self-Development Skills, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi ArabiaDepartment of Applied Bioscience, College of Sanghuh Life Science, Konkuk University, Seoul 05029, Republic of KoreaCentro de Energías Renovables de Tacna, Facultad de Ciencias, Universidad Nacional Jorge Basadre Grohmann, Avenida Miraflores S/N, Ciudad Universitaria, Tacna 23003, PeruGrupo de Investigación HIDROCIENCIA, Facultad de Ciencias de la Salud, Universidad Privada de Tacna, Av. Jorge Basadre Grohmann S/N Pocollay, Tacna 23003, PeruFaulty of Engineering and Sciences, Universidad Adolfo Ibáñez, Diagonal las Torres 2640, Peñalolén, Santiago 7941169, ChileThis article describes an affordable method for the synthesis of MnMoO<sub>4</sub> nanoflowers through the microwave synthesis approach. By manipulating the reaction parameters like solvent, pH, microwave power, and irradiation duration along this pathway, various nanostructures can be acquired. The synthesized nanoflowers were analyzed by using a powder X-ray diffractometer (XRD), field emission scanning electron microscopy (FE-SEM) with energy dispersive X-ray spectroscopy (EDS), Fourier transform infrared spectroscopy (FT-IR), and UV–vis diffuse reflectance spectroscopy (UV–DRS) to determine their crystalline nature, morphological and functional group, and optical properties, respectively. X-ray photoelectron spectroscopy (XPS) was performed for the examination of elemental composition and chemical states by qualitative and quantitative analysis. The results of the investigations demonstrated that the MnMoO<sub>4</sub> nanostructures with good crystallinity and distinct shape were formed successfully. The synthesized MnMoO<sub>4</sub> nanoflowers were tested for their efficiency as a photocatalyst in the degradation studies of methylene blue (MB) as model organic contaminants in an aqueous medium under visible light, which showed their photocatalytic activity with a degradation of 85%. Through the band position calculations using the electronegative value of MnMoO<sub>4</sub>, the photocatalytic mechanism of the nanostructures was proposed. The results indicated that the effective charge separation, and transfer mechanisms, in addition to the flower-like shape, were responsible for the photocatalytic performance. The stability of the recovered photocatalyst was examined through its recyclability in the degradation of MB. Leveraging MnMoO<sub>4</sub>’s photocatalytic properties, future studies may focus on scaling up these processes for practical and large-scale environmental remediation.https://www.mdpi.com/1996-1944/17/7/1451MnMoO<sub>4</sub> flowerphotocatalystvisible light activeenvironmental |
| spellingShingle | Muthamizh Selvamani Arulvarman Kesavan Arunachalam Arulraj Praveen C. Ramamurthy Mostafizur Rahaman Saravanan Pandiaraj Muthu Thiruvengadam Elisban Juani Sacari Sacari Elmer Marcial Limache Sandoval Mangalaraja Ramalinga Viswanathan Microwave-Assisted Synthesis of Flower-like MnMoO<sub>4</sub> Nanostructures and Their Photocatalytic Performance Materials MnMoO<sub>4</sub> flower photocatalyst visible light active environmental |
| title | Microwave-Assisted Synthesis of Flower-like MnMoO<sub>4</sub> Nanostructures and Their Photocatalytic Performance |
| title_full | Microwave-Assisted Synthesis of Flower-like MnMoO<sub>4</sub> Nanostructures and Their Photocatalytic Performance |
| title_fullStr | Microwave-Assisted Synthesis of Flower-like MnMoO<sub>4</sub> Nanostructures and Their Photocatalytic Performance |
| title_full_unstemmed | Microwave-Assisted Synthesis of Flower-like MnMoO<sub>4</sub> Nanostructures and Their Photocatalytic Performance |
| title_short | Microwave-Assisted Synthesis of Flower-like MnMoO<sub>4</sub> Nanostructures and Their Photocatalytic Performance |
| title_sort | microwave assisted synthesis of flower like mnmoo sub 4 sub nanostructures and their photocatalytic performance |
| topic | MnMoO<sub>4</sub> flower photocatalyst visible light active environmental |
| url | https://www.mdpi.com/1996-1944/17/7/1451 |
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