Highly efficient visible light active iron oxide-based photocatalysts for both hydrogen production and dye degradation

Photocatalysis is essential for wastewater cleanup and clean energy, and in this current study, we have synthesized nanomaterials (iron oxide-based) for photocatalytic pollution degradation and hydrogen production. The performance of aluminium oxide/ferric oxide (Al 2 O 3 /Fe 2 O 3 ), samarium oxide...

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Published in:Scientific reports 2024-08, Vol.14 (1), p.18299-13, Article 18299
Main Authors: Vijayarengan, Preethi, Panchangam, Sri Chandana, Stephen, Ananth, Bernatsha, Gokulanandhan, Murali, Gokul Krishnan, Loka, Subramanyam Sarma, Manoharan, Sathish Kumar, Vemula, Venkatramu, Karri, Rama Rao, Ravindran, Gobinath
Format: Article
Language:English
Subjects:
639/301
704/172
Aluminum
Aluminum oxide
Catalysts
Clean energy
Degradation
Dyes
Ferric oxide
H2 production
Humanities and Social Sciences
Hydrogen
Hydrogen production
Iron oxides
multidisciplinary
Nanotechnology
Photocatalysis
RhB
Rhodamine
Samarium
Science
Science (multidisciplinary)
Sulfides
Wastewater
Yttrium
Yttrium oxide
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Summary:Photocatalysis is essential for wastewater cleanup and clean energy, and in this current study, we have synthesized nanomaterials (iron oxide-based) for photocatalytic pollution degradation and hydrogen production. The performance of aluminium oxide/ferric oxide (Al 2 O 3 /Fe 2 O 3 ), samarium oxide/ferric oxide (Sm 2 O 3 /Fe 2 O 3 ) and yttrium oxide/ferric oxide (Y 2 O 3 /Fe 2 O 3 ) were compared for the production of hydrogen (H 2 ) and degradation of dye under natural sunlight. Various characterisation equipment was used to characterize these photocatalysts’ structure, morphology, elemental content, binding energy and band gap. The hydrogen recovery efficiency of iron oxide-based photocatalysts from sulphide-containing wastewater is assessed. Y 2 O 3 /Fe 2 O 3 has shown the highest hydrogen production of 340 mL/h. The influence of operating factors such as sulphide ion concentration, catalyst quantity, and photocatalyst photolytic solution volume on hydrogen production is studied. The optimal values were 0.25 M, 0.2 g/L, and 1L, respectively. The developed photocatalyst passed multiple cycles of stability testing. Fe 2 O 3 has shown the highest Rhodamine B (RhB) dye degradation efficiency of 94% under visible light.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-024-69413-4