Noble metal free few-layered perovskite-based Ba2NbFeO6 nanostructures on exfoliated g-C3N4 layers as highly efficient catalysts for enhanced solar fuel production

D. Praveen Kumar; A. Putta Rangappa; Khai H. Do; Yul Hong; Madhusudana Gopannagari; K. Arun Joshi Reddy; P. Bhavani; D. Amaranatha Reddy; Tae Kyu Kim

doi:10.1016/j.apsusc.2021.151406

Noble metal free few-layered perovskite-based Ba₂NbFeO₆ nanostructures on exfoliated g-C₃N₄ layers as highly efficient catalysts for enhanced solar fuel production

D. Praveen Kumar, A. Putta Rangappa, Khai H. Do, Yul Hong, Madhusudana Gopannagari, K. Arun Joshi Reddy, P. Bhavani, D. Amaranatha Reddy, Tae Kyu Kim

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

Two-dimensional (2D) organic semiconductors, such as graphitic carbon nitride (g-C₃N₄), have gained extensive attention as a green alternative and possible route for photocatalytic applications due to their appropriate bandgap for the effective utilization of the visible light region. This paper presents the development of few-layered 2D exfoliated g-C₃N₄ nanosheets (eCN) by exfoliating stacked g-C₃N₄ layers (CNs) followed by incorporating inorganic perovskite-based Ba₂NbFeO₆ (BNF) nanostructures for solar fuel production. The optimized BNF/eCN composite material showed a high rate of solar fuel production, such as H₂ production (1677 µmol·h⁻¹·g⁻¹), which is ∼ 8-fold higher than simple g-C₃N₄ and CO₂ conversion into CO (32 µmol·h⁻¹·g⁻¹) and CH₄ (4.8 µmol·h⁻¹·g⁻¹) production, which is 2-fold higher than eCN. However, only CO production (5 µmol·h⁻¹·g⁻¹) was observed for the simple CN. The enhanced activity of composite material was due to the improved surface-active sites of g-C₃N₄ through exfoliation, the unique properties of BNF nanosheets, and their combination. The present BNF/eCN composite system showed the highest efficiency compared to earlier reported g-C₃N₄-based photocatalysts.

Original language	English
Article number	151406
Journal	Applied Surface Science
Volume	572
DOIs	https://doi.org/10.1016/j.apsusc.2021.151406
Publication status	Published - 2022 Jan 15

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF), grants funded by the Ministry of Science and ICT (2016K1A4A4A01922028, 2020H1D3A1A02081461 and 2020R1A4A1017737).

Publisher Copyright:
© 2021 Elsevier B.V.

All Science Journal Classification (ASJC) codes

Chemistry(all)
Condensed Matter Physics
Physics and Astronomy(all)
Surfaces and Interfaces
Surfaces, Coatings and Films

Access to Document

10.1016/j.apsusc.2021.151406

Cite this

Praveen Kumar, D., Putta Rangappa, A., Do, K. H., Hong, Y., Gopannagari, M., Arun Joshi Reddy, K., Bhavani, P., Amaranatha Reddy, D., & Kyu Kim, T. (2022). Noble metal free few-layered perovskite-based Ba₂NbFeO₆ nanostructures on exfoliated g-C₃N₄ layers as highly efficient catalysts for enhanced solar fuel production. Applied Surface Science, 572, [151406]. https://doi.org/10.1016/j.apsusc.2021.151406

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title = "Noble metal free few-layered perovskite-based Ba2NbFeO6 nanostructures on exfoliated g-C3N4 layers as highly efficient catalysts for enhanced solar fuel production",

abstract = "Two-dimensional (2D) organic semiconductors, such as graphitic carbon nitride (g-C3N4), have gained extensive attention as a green alternative and possible route for photocatalytic applications due to their appropriate bandgap for the effective utilization of the visible light region. This paper presents the development of few-layered 2D exfoliated g-C3N4 nanosheets (eCN) by exfoliating stacked g-C3N4 layers (CNs) followed by incorporating inorganic perovskite-based Ba2NbFeO6 (BNF) nanostructures for solar fuel production. The optimized BNF/eCN composite material showed a high rate of solar fuel production, such as H2 production (1677 µmol·h−1·g−1), which is ∼ 8-fold higher than simple g-C3N4 and CO2 conversion into CO (32 µmol·h−1·g−1) and CH4 (4.8 µmol·h−1·g−1) production, which is 2-fold higher than eCN. However, only CO production (5 µmol·h−1·g−1) was observed for the simple CN. The enhanced activity of composite material was due to the improved surface-active sites of g-C3N4 through exfoliation, the unique properties of BNF nanosheets, and their combination. The present BNF/eCN composite system showed the highest efficiency compared to earlier reported g-C3N4-based photocatalysts.",

author = "{Praveen Kumar}, D. and {Putta Rangappa}, A. and Do, {Khai H.} and Yul Hong and Madhusudana Gopannagari and {Arun Joshi Reddy}, K. and P. Bhavani and {Amaranatha Reddy}, D. and {Kyu Kim}, Tae",

note = "Funding Information: This work was supported by the National Research Foundation of Korea (NRF), grants funded by the Ministry of Science and ICT (2016K1A4A4A01922028, 2020H1D3A1A02081461 and 2020R1A4A1017737). Publisher Copyright: {\textcopyright} 2021 Elsevier B.V.",

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Praveen Kumar, D, Putta Rangappa, A, Do, KH, Hong, Y, Gopannagari, M, Arun Joshi Reddy, K, Bhavani, P, Amaranatha Reddy, D & Kyu Kim, T 2022, 'Noble metal free few-layered perovskite-based Ba₂NbFeO₆ nanostructures on exfoliated g-C₃N₄ layers as highly efficient catalysts for enhanced solar fuel production', Applied Surface Science, vol. 572, 151406. https://doi.org/10.1016/j.apsusc.2021.151406

TY - JOUR

T1 - Noble metal free few-layered perovskite-based Ba2NbFeO6 nanostructures on exfoliated g-C3N4 layers as highly efficient catalysts for enhanced solar fuel production

AU - Praveen Kumar, D.

AU - Putta Rangappa, A.

AU - Do, Khai H.

AU - Hong, Yul

AU - Gopannagari, Madhusudana

AU - Arun Joshi Reddy, K.

AU - Bhavani, P.

AU - Amaranatha Reddy, D.

AU - Kyu Kim, Tae

N1 - Funding Information: This work was supported by the National Research Foundation of Korea (NRF), grants funded by the Ministry of Science and ICT (2016K1A4A4A01922028, 2020H1D3A1A02081461 and 2020R1A4A1017737). Publisher Copyright: © 2021 Elsevier B.V.

PY - 2022/1/15

Y1 - 2022/1/15

N2 - Two-dimensional (2D) organic semiconductors, such as graphitic carbon nitride (g-C3N4), have gained extensive attention as a green alternative and possible route for photocatalytic applications due to their appropriate bandgap for the effective utilization of the visible light region. This paper presents the development of few-layered 2D exfoliated g-C3N4 nanosheets (eCN) by exfoliating stacked g-C3N4 layers (CNs) followed by incorporating inorganic perovskite-based Ba2NbFeO6 (BNF) nanostructures for solar fuel production. The optimized BNF/eCN composite material showed a high rate of solar fuel production, such as H2 production (1677 µmol·h−1·g−1), which is ∼ 8-fold higher than simple g-C3N4 and CO2 conversion into CO (32 µmol·h−1·g−1) and CH4 (4.8 µmol·h−1·g−1) production, which is 2-fold higher than eCN. However, only CO production (5 µmol·h−1·g−1) was observed for the simple CN. The enhanced activity of composite material was due to the improved surface-active sites of g-C3N4 through exfoliation, the unique properties of BNF nanosheets, and their combination. The present BNF/eCN composite system showed the highest efficiency compared to earlier reported g-C3N4-based photocatalysts.

AB - Two-dimensional (2D) organic semiconductors, such as graphitic carbon nitride (g-C3N4), have gained extensive attention as a green alternative and possible route for photocatalytic applications due to their appropriate bandgap for the effective utilization of the visible light region. This paper presents the development of few-layered 2D exfoliated g-C3N4 nanosheets (eCN) by exfoliating stacked g-C3N4 layers (CNs) followed by incorporating inorganic perovskite-based Ba2NbFeO6 (BNF) nanostructures for solar fuel production. The optimized BNF/eCN composite material showed a high rate of solar fuel production, such as H2 production (1677 µmol·h−1·g−1), which is ∼ 8-fold higher than simple g-C3N4 and CO2 conversion into CO (32 µmol·h−1·g−1) and CH4 (4.8 µmol·h−1·g−1) production, which is 2-fold higher than eCN. However, only CO production (5 µmol·h−1·g−1) was observed for the simple CN. The enhanced activity of composite material was due to the improved surface-active sites of g-C3N4 through exfoliation, the unique properties of BNF nanosheets, and their combination. The present BNF/eCN composite system showed the highest efficiency compared to earlier reported g-C3N4-based photocatalysts.

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