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Long single crystalline α-Mn2O3 nanorods: facile synthesis and photocatalytic application
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Krishna Chandar Nagamuthu Raja
Materials Research Express, Volume: 7, Issue: 7, Start page: 074001
Swansea University Author:
Sudhagar Pitchaimuthu
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DOI (Published version): 10.1088/2053-1591/ab9fbd
Abstract
Single crystalline cubic sesquioxide bixbyite α-Mn2O3 nanorods have been synthesized successfully by a simple, low cost, environmental benign hydrothermal route. As synthesized γ-MnOOH were calcined at 600 °C to obtain α-Mn2O3 nanorods, which were further subjected to various characterizations. The...
| Published in: | Materials Research Express |
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| ISSN: | 2053-1591 |
| Published: |
IOP Publishing
2020
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa54865 |
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| Abstract: |
Single crystalline cubic sesquioxide bixbyite α-Mn2O3 nanorods have been synthesized successfully by a simple, low cost, environmental benign hydrothermal route. As synthesized γ-MnOOH were calcined at 600 °C to obtain α-Mn2O3 nanorods, which were further subjected to various characterizations. The alpha manganese sesquioxide cubic bixbyite-type oxide formation was confirmed by the XRD studies. The surface morphology and elemental analysis were explored by SEM with EDX studies, respectively. High-resolution transmission electron microscopy HRTEM and SAED showed that the α-Mn2O3 nanorods were single crystalline and were grown along the C-axis of the crystal plane. The UV–visible spectrum indicated that the absorption was prominent in the ultraviolet region. In addition, PL spectrum result of α-Mn2O3 nanorods recommended possible photocatalytic applications. The photocatalyst ensures a new platform for the decolorization of dye molecules of the harmful cationic dyes like methylene blue and rhodamine B. Possible growth mechanism and photocatalytic dye degradation mechanism were proposed for synthesized α-Mn2O3 nanorods. |
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| Keywords: |
hydrothermal method, α-Mn2O3 nanorods, photocatalytic, rhodamaine B, methylene blue |
| College: |
Faculty of Science and Engineering |
| Issue: |
7 |
| Start Page: |
074001 |