Thortveitite phase manganese vanadate (Mn2V2O7) for the removal of model organic pollutants

Photocatalysis is useful for the long-term goal of a pollution-free environment. However, the development of new photoactive materials with enhanced photoconversion efficiency remains a serious bottleneck. This study demonstrates the preparation of low-cost, nontoxic, rod-like β -Mn 2 V 2 O 7 using...

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Veröffentlicht in:The Korean journal of chemical engineering 2023, 40(8), 281, pp.1993-2003
Hauptverfasser: Jayaraman, Venkatesan, Ganesan, Mathankumar, Mani, Alagiri, Kim, Do-Heyoung
Format: Artikel
Sprache:eng
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Zusammenfassung:Photocatalysis is useful for the long-term goal of a pollution-free environment. However, the development of new photoactive materials with enhanced photoconversion efficiency remains a serious bottleneck. This study demonstrates the preparation of low-cost, nontoxic, rod-like β -Mn 2 V 2 O 7 using a simple, cost-effective fabrication method. The proposed photoactive material was characterized using several analytical techniques to determine its physiochemical properties, while its photocatalytic ability for the removal of organic pollutants under direct sunlight was also assessed. The prepared β -Mn 2 V 2 O 7 was found to efficiently remove both Rhodamine B and methylene blue from an aqueous solution. The photoinduced and ultra-sound-assisted catalytic reduction of 4-nitrophenol (4-NP) was also demonstrated. The hydrogen-evolved photocatalytic removal of 4-NP was evaluated with different amounts of ethanol as a scavenger, with 10% ethanol exhibiting optimal efficiency. The superior organic pollutant removal ability of the proposed material is ascribed to its high surface area, superior optical properties, and suitable band edges.
ISSN:0256-1115
1975-7220
DOI:10.1007/s11814-023-1478-z