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Investigation of heterojunction between α-Fe₂O₃/V₂O₅ and g-C₃N₄ ternary nanocomposites for upgraded photo-degradation performance of mixed pollutants: Efficient dual Z-scheme mechanism

Vignesh, S. and Suganthi, S. and Srinivasan, M. and Tamilmani, A. and Sundar, J. Kalyana and Sreedevi, Gedi and Palanivel, Baskaran and Shaikh, Shoyebmohamad F. and Ubaidullah, Mohd and Raza, Md Kausar (2022) Investigation of heterojunction between α-Fe₂O₃/V₂O₅ and g-C₃N₄ ternary nanocomposites for upgraded photo-degradation performance of mixed pollutants: Efficient dual Z-scheme mechanism. Journal of Alloys and Compounds, 902 . Art. No. 163705. ISSN 0925-8388. doi:10.1016/j.jallcom.2022.163705. https://resolver.caltech.edu/CaltechAUTHORS:20220112-390484145

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Abstract

In this present work, a g-C₃N₄ decorated dual Z-scheme α-Fe₂O₃ and V₂O₅ heterojunction of magnetically recoverable GFV (g-C₃N₄/α-Fe₂O₃/V₂O₅) composite was rationally synthesized using facile calcination and hydrothermal approach. The crystal structure, surface morphology, chemical composition and optical properties of the as-obtained composite photocatalysts (PCs) were characterized by powder X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectra high-resolution scanning electron microscopy (HR-SEM, high-resolution transmission electron microscopy (HR-TEM), X-ray photoelectron spectroscopy (XPS) measurement, UV-Vis diffuse reflectance spectra (DRS) and photoluminescence (PL) analyses respectively. Benefiting from these structural and compositional features, the optimum GFV heterostructured PCs sample revealed that the superior photo-degradation performance of methyl yellow (MY) and methylene blue (MB) mixed dye under visible-light, while the degradation rates were 93.4% for MY and 87.5% for MB dye at 90 min, respectively. Moreover, the enhanced photo-degradation performance of GFV composite PCs displayed an extended visible-light fascination due to lower bandgap, reduced recombination rates, high charge separation and good charge transfer capacity with the efficient dual Z-scheme heterojunction. Meanwhile, high photo-degradation stability is continued after five successive reusability tests. A possible photo-degradation mechanism of dual Z-scheme charge transfer paths was also been proposed. This study is also capable of emerging visible-light active facile heterojunction photocatalysts for various organic pollutants removal with great efficiency.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1016/j.jallcom.2022.163705DOIArticle
ORCID:
AuthorORCID
Ubaidullah, Mohd0000-0002-0484-0299
Raza, Md Kausar0000-0002-9175-198X
Alternate Title:Investigation of heterojunction between α-Fe2O3/V2O5 and g-C3N4 ternary nanocomposites for upgraded photo-degradation performance of mixed pollutants: Efficient dual Z-scheme mechanism
Additional Information:© 2022 Elsevier. Received 13 August 2021, Revised 28 December 2021, Accepted 6 January 2022, Available online 12 January 2022. The authors extend their sincere appreciation to the Researchers Supporting Project number (RSP-2021/370), King Saud University, Riyadh, Saudi Arabia for the financial support. CRediT authorship contribution statement: S. Vignesh: Conceptualization, Methodology, Writing – review & editing, Project administration, Writing – original draft, Visualization, Data curation, Validation. S. Suganthi: Data curationm Validation, Formal analysis. M. Srinivasan: Data curation, Validation, Formal analysis. A. Tamilmani: Data curation, Validation, Formal analysis. J. Kalyana Sundar: Supervision, Methodology, Writing – review & editing, Data curation, Project administration, Validation, Formal analysis. Gedi Sreedevi: Data curation, Validation, Formal analysis. Baskaran Palanivel: Data curation, Validation, Formal analysis. Shoyebmohamad F. Shaikh: Data curation, Validation, Formal analysis. Mohd Ubaidullah: Data curation, Validation, Formal analysis. Md Kausar Raza: Data curation, Validation, Formal analysis. The authors declare that they have no known competing interests.
Funders:
Funding AgencyGrant Number
King Saud UniversityRSP-2021/370
Subject Keywords:g-C3N4/α-Fe2O3/V2O5; Nanocomposites; Visible-light; Mixed dye; Magnetic separable; Z-Scheme
DOI:10.1016/j.jallcom.2022.163705
Record Number:CaltechAUTHORS:20220112-390484145
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20220112-390484145
Official Citation:S. Vignesh, S. Suganthi, M. Srinivasan, A. Tamilmani, J. Kalyana Sundar, Sreedevi Gedi, Baskaran Palanivel, Shoyebmohamad F. Shaikh, Mohd Ubaidullah, Md Kausar Raza, Investigation of heterojunction between α-Fe2O3/V2O5 and g-C3N4 ternary nanocomposites for upgraded photo-degradation performance of mixed pollutants: Efficient dual Z-scheme mechanism, Journal of Alloys and Compounds, Volume 902, 2022, 163705, ISSN 0925-8388, https://doi.org/10.1016/j.jallcom.2022.163705.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:112857
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:12 Jan 2022 15:49
Last Modified:16 Feb 2022 18:06

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  • Investigation of heterojunction between α-Fe₂O₃/V₂O₅ and g-C₃N₄ ternary nanocomposites for upgraded photo-degradation performance of mixed pollutants: Efficient dual Z-scheme mechanism. (deposited 12 Jan 2022 15:49) [Currently Displayed]

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  • Vignesh, S. and Suganthi, S. and Srinivasan, M. and Tamilmani, A. and Sundar, J. Kalyana and Sreedevi, Gedi and Palanivel, Baskaran and Shaikh, Shoyebmohamad F. and Ubaidullah, Mohd and Raza, Md Kausar Investigation of heterojunction between α-Fe₂O₃/V₂O₅ and g-C₃N₄ ternary nanocomposites for upgraded photo-degradation performance of mixed pollutants: Efficient dual Z-scheme mechanism. (deposited 12 Jan 2022 15:49) [Currently Displayed]

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