Enhanced photocatalytic activity of Cuprous Oxide nanoparticles for malachite green degradation under the visible light radiation
Photocatalysis provides excellent potentials for the complete removal of organic pollutants in environmentally friendly ways and sustainable means of technology. It has been noted that under UV-visible light irradiation, nanostructured semiconductor metal oxides photocatalysts can degrade different...
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IOP Publishing
2020-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/ab63fb |
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| author | M Muthukumaran G Gnanamoorthy P Varun Prasath M Abinaya G Dhinagaran Suresh Sagadevan Faruq Mohammad Won Chun Oh K Venkatachalam |
| author_facet | M Muthukumaran G Gnanamoorthy P Varun Prasath M Abinaya G Dhinagaran Suresh Sagadevan Faruq Mohammad Won Chun Oh K Venkatachalam |
| author_sort | M Muthukumaran |
| collection | DOAJ |
| description | Photocatalysis provides excellent potentials for the complete removal of organic pollutants in environmentally friendly ways and sustainable means of technology. It has been noted that under UV-visible light irradiation, nanostructured semiconductor metal oxides photocatalysts can degrade different organic pollutants. Taking into consideration of the photocatalytic activity, the present study deals with the synthesis of cuprous oxide (Cu _2 O) nanoparticles (NPs) by the sonochemical method and characterized for their physicochemical, optical, and photocatalytic properties. The powdered X-ray diffraction (XRD) analysis confirmed for the cubic phase crystalline structure while the Field emission scanning electron microscopy (SEM) supported for the icosahedron morphology. The bandgap of the synthesized Cu _2 O NPs was found to be 2.26 eV, which is the suitable bandgap energy so as to achieve the enhanced photocatalytic degradation efficiency. On testing for the degradation of Malachite green (MG) as a model pollutant, the synthesized Cu _2 O NPs demonstrated a high degradation efficiency under visible light irradiation. The observed results suggest that the synthesized Cu _2 O NPs are attractive photocatalysts for the degradation of toxic organic wastes in the water under visible light. Further investigation confirmed for the photocatalytic reduction of 4-nitrophenol (4-NP) into 4-aminophenol (4-AP) under aqueous conditions with visible light. |
| first_indexed | 2024-03-12T15:46:04Z |
| format | Article |
| id | doaj.art-76f8fe3fdd51486390249e7e33f6a0ef |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:46:04Z |
| publishDate | 2020-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-76f8fe3fdd51486390249e7e33f6a0ef2023-08-09T15:25:20ZengIOP PublishingMaterials Research Express2053-15912020-01-017101503810.1088/2053-1591/ab63fbEnhanced photocatalytic activity of Cuprous Oxide nanoparticles for malachite green degradation under the visible light radiationM Muthukumaran0G Gnanamoorthy1P Varun Prasath2M Abinaya3G Dhinagaran4Suresh Sagadevan5https://orcid.org/0000-0003-0393-7344Faruq Mohammad6Won Chun Oh7K Venkatachalam8Department of Analytical Chemistry, University of Madras , Guindy Campus, Chennai-25, IndiaDepartment of Inorganic Chemistry, University of Madras , Guindy Campus, Chennai-25, IndiaDepartment of Analytical Chemistry, University of Madras , Guindy Campus, Chennai-25, IndiaDepartment of Analytical Chemistry, University of Madras , Guindy Campus, Chennai-25, IndiaDepartment of Analytical Chemistry, University of Madras , Guindy Campus, Chennai-25, IndiaNanotechnology and Catalysis Research Centre, University of Malaya , Kuala Lumpur 50603, MalaysiaSurfactants Research Chair, Department of Chemistry, College of Science, King Saud University , Riyadh 11451, Saudi ArabiaDepartment of Advanced Materials Science and Engineering, Hanseo University , Seosan-si, Chungnam 356-706, Republic of KoreaDepartment of Analytical Chemistry, University of Madras , Guindy Campus, Chennai-25, IndiaPhotocatalysis provides excellent potentials for the complete removal of organic pollutants in environmentally friendly ways and sustainable means of technology. It has been noted that under UV-visible light irradiation, nanostructured semiconductor metal oxides photocatalysts can degrade different organic pollutants. Taking into consideration of the photocatalytic activity, the present study deals with the synthesis of cuprous oxide (Cu _2 O) nanoparticles (NPs) by the sonochemical method and characterized for their physicochemical, optical, and photocatalytic properties. The powdered X-ray diffraction (XRD) analysis confirmed for the cubic phase crystalline structure while the Field emission scanning electron microscopy (SEM) supported for the icosahedron morphology. The bandgap of the synthesized Cu _2 O NPs was found to be 2.26 eV, which is the suitable bandgap energy so as to achieve the enhanced photocatalytic degradation efficiency. On testing for the degradation of Malachite green (MG) as a model pollutant, the synthesized Cu _2 O NPs demonstrated a high degradation efficiency under visible light irradiation. The observed results suggest that the synthesized Cu _2 O NPs are attractive photocatalysts for the degradation of toxic organic wastes in the water under visible light. Further investigation confirmed for the photocatalytic reduction of 4-nitrophenol (4-NP) into 4-aminophenol (4-AP) under aqueous conditions with visible light.https://doi.org/10.1088/2053-1591/ab63fbsonochemical synthesisphotocatalytic degradationCu2O NPsmalachite green |
| spellingShingle | M Muthukumaran G Gnanamoorthy P Varun Prasath M Abinaya G Dhinagaran Suresh Sagadevan Faruq Mohammad Won Chun Oh K Venkatachalam Enhanced photocatalytic activity of Cuprous Oxide nanoparticles for malachite green degradation under the visible light radiation Materials Research Express sonochemical synthesis photocatalytic degradation Cu2O NPs malachite green |
| title | Enhanced photocatalytic activity of Cuprous Oxide nanoparticles for malachite green degradation under the visible light radiation |
| title_full | Enhanced photocatalytic activity of Cuprous Oxide nanoparticles for malachite green degradation under the visible light radiation |
| title_fullStr | Enhanced photocatalytic activity of Cuprous Oxide nanoparticles for malachite green degradation under the visible light radiation |
| title_full_unstemmed | Enhanced photocatalytic activity of Cuprous Oxide nanoparticles for malachite green degradation under the visible light radiation |
| title_short | Enhanced photocatalytic activity of Cuprous Oxide nanoparticles for malachite green degradation under the visible light radiation |
| title_sort | enhanced photocatalytic activity of cuprous oxide nanoparticles for malachite green degradation under the visible light radiation |
| topic | sonochemical synthesis photocatalytic degradation Cu2O NPs malachite green |
| url | https://doi.org/10.1088/2053-1591/ab63fb |
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