Rational construction of plasmonic Z-scheme Ag-ZnO-CeO2 heterostructures for highly enhanced solar photocatalytic H2 evolution

Abdo Hezam; Jingwei Wang; Q. A. Drmosh; P. Karthik; Mohammed Abdullah Bajiri; K. Namratha; Mina Zare; T. R. Lakshmeesha; Srikantaswamy Shivanna; Chun Cheng; Bernaurdshaw Neppolian; K. Byrappa

doi:10.1016/j.apsusc.2020.148457

Rational construction of plasmonic Z-scheme Ag-ZnO-CeO₂ heterostructures for highly enhanced solar photocatalytic H₂ evolution

Abdo Hezam, Jingwei Wang, Q. A. Drmosh^*, P. Karthik, Mohammed Abdullah Bajiri, K. Namratha, Mina Zare, T. R. Lakshmeesha, Srikantaswamy Shivanna, Chun Cheng, Bernaurdshaw Neppolian, K. Byrappa

^*Corresponding author for this work

Interdisciplinary Research Center for Hydrogen Technologies and Carbon Management

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

50 Scopus citations

Abstract

Rational design of photocatalyst with wide solar-spectrum absorption, negligible electron-hole recombination, and maximized redox potential is an essential prerequisite for achieving commercial-scale photocatalytic H₂ production. This contribution combines surface plasmon resonance and Z-scheme charge transport in a single photocatalyst (Ag-ZnO-CeO₂ heterostructure) aiming to improve its performance for photocatalytic H₂ production. The Ag-ZnO-CeO₂ heterostructure is fabricated via sunlight-driven combustion and deposition approaches. The successful construction is confirmed by several characterization techniques. The Z-scheme configuration is verified by in situ irradiated XPS and ESR analyses. Ag plays dual rules as an electron mediator to facilitate the Z-scheme charge transport and plasmonic material to maximize the light absorption in the visible region. The designed photocatalyst exhibits significantly enhanced photocatalytic activity for H₂ production (18345 μmol h⁻¹ g⁻¹) under simulated sunlight irradiation. This work offers the opportunity of constructing efficient Z-scheme photocatalyst from wide bandgap semiconductors with full-visible light response, suppressed electron-hole recombination, and optimized redox potential.

Original language	English
Article number	148457
Journal	Applied Surface Science
Volume	541
DOIs	https://doi.org/10.1016/j.apsusc.2020.148457
State	Published - 1 Mar 2021

Bibliographical note

Publisher Copyright:
© 2020 Elsevier B.V.

Keywords

High aspect ratio
Lavender extract
Photocatalytic hydrogen production
Sunlight-assisted combustion
Surface plasmon resonance
Z-scheme charge migration

ASJC Scopus subject areas

Condensed Matter Physics
Surfaces, Coatings and Films
Surfaces and Interfaces

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.apsusc.2020.148457

Cite this

Hezam, A., Wang, J., Drmosh, Q. A., Karthik, P., Abdullah Bajiri, M., Namratha, K., Zare, M., Lakshmeesha, T. R., Shivanna, S., Cheng, C., Neppolian, B., & Byrappa, K. (2021). Rational construction of plasmonic Z-scheme Ag-ZnO-CeO₂ heterostructures for highly enhanced solar photocatalytic H₂ evolution. Applied Surface Science, 541, Article 148457. https://doi.org/10.1016/j.apsusc.2020.148457

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title = "Rational construction of plasmonic Z-scheme Ag-ZnO-CeO2 heterostructures for highly enhanced solar photocatalytic H2 evolution",

abstract = "Rational design of photocatalyst with wide solar-spectrum absorption, negligible electron-hole recombination, and maximized redox potential is an essential prerequisite for achieving commercial-scale photocatalytic H2 production. This contribution combines surface plasmon resonance and Z-scheme charge transport in a single photocatalyst (Ag-ZnO-CeO2 heterostructure) aiming to improve its performance for photocatalytic H2 production. The Ag-ZnO-CeO2 heterostructure is fabricated via sunlight-driven combustion and deposition approaches. The successful construction is confirmed by several characterization techniques. The Z-scheme configuration is verified by in situ irradiated XPS and ESR analyses. Ag plays dual rules as an electron mediator to facilitate the Z-scheme charge transport and plasmonic material to maximize the light absorption in the visible region. The designed photocatalyst exhibits significantly enhanced photocatalytic activity for H2 production (18345 μmol h−1 g−1) under simulated sunlight irradiation. This work offers the opportunity of constructing efficient Z-scheme photocatalyst from wide bandgap semiconductors with full-visible light response, suppressed electron-hole recombination, and optimized redox potential.",

keywords = "High aspect ratio, Lavender extract, Photocatalytic hydrogen production, Sunlight-assisted combustion, Surface plasmon resonance, Z-scheme charge migration",

author = "Abdo Hezam and Jingwei Wang and Drmosh, {Q. A.} and P. Karthik and {Abdullah Bajiri}, Mohammed and K. Namratha and Mina Zare and Lakshmeesha, {T. R.} and Srikantaswamy Shivanna and Chun Cheng and Bernaurdshaw Neppolian and K. Byrappa",

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doi = "10.1016/j.apsusc.2020.148457",

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Hezam, A, Wang, J, Drmosh, QA, Karthik, P, Abdullah Bajiri, M, Namratha, K, Zare, M, Lakshmeesha, TR, Shivanna, S, Cheng, C, Neppolian, B & Byrappa, K 2021, 'Rational construction of plasmonic Z-scheme Ag-ZnO-CeO₂ heterostructures for highly enhanced solar photocatalytic H₂ evolution', Applied Surface Science, vol. 541, 148457. https://doi.org/10.1016/j.apsusc.2020.148457

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T1 - Rational construction of plasmonic Z-scheme Ag-ZnO-CeO2 heterostructures for highly enhanced solar photocatalytic H2 evolution

AU - Hezam, Abdo

AU - Wang, Jingwei

AU - Drmosh, Q. A.

AU - Karthik, P.

AU - Abdullah Bajiri, Mohammed

AU - Namratha, K.

AU - Zare, Mina

AU - Lakshmeesha, T. R.

AU - Shivanna, Srikantaswamy

AU - Cheng, Chun

AU - Neppolian, Bernaurdshaw

AU - Byrappa, K.

PY - 2021/3/1

Y1 - 2021/3/1

N2 - Rational design of photocatalyst with wide solar-spectrum absorption, negligible electron-hole recombination, and maximized redox potential is an essential prerequisite for achieving commercial-scale photocatalytic H2 production. This contribution combines surface plasmon resonance and Z-scheme charge transport in a single photocatalyst (Ag-ZnO-CeO2 heterostructure) aiming to improve its performance for photocatalytic H2 production. The Ag-ZnO-CeO2 heterostructure is fabricated via sunlight-driven combustion and deposition approaches. The successful construction is confirmed by several characterization techniques. The Z-scheme configuration is verified by in situ irradiated XPS and ESR analyses. Ag plays dual rules as an electron mediator to facilitate the Z-scheme charge transport and plasmonic material to maximize the light absorption in the visible region. The designed photocatalyst exhibits significantly enhanced photocatalytic activity for H2 production (18345 μmol h−1 g−1) under simulated sunlight irradiation. This work offers the opportunity of constructing efficient Z-scheme photocatalyst from wide bandgap semiconductors with full-visible light response, suppressed electron-hole recombination, and optimized redox potential.

AB - Rational design of photocatalyst with wide solar-spectrum absorption, negligible electron-hole recombination, and maximized redox potential is an essential prerequisite for achieving commercial-scale photocatalytic H2 production. This contribution combines surface plasmon resonance and Z-scheme charge transport in a single photocatalyst (Ag-ZnO-CeO2 heterostructure) aiming to improve its performance for photocatalytic H2 production. The Ag-ZnO-CeO2 heterostructure is fabricated via sunlight-driven combustion and deposition approaches. The successful construction is confirmed by several characterization techniques. The Z-scheme configuration is verified by in situ irradiated XPS and ESR analyses. Ag plays dual rules as an electron mediator to facilitate the Z-scheme charge transport and plasmonic material to maximize the light absorption in the visible region. The designed photocatalyst exhibits significantly enhanced photocatalytic activity for H2 production (18345 μmol h−1 g−1) under simulated sunlight irradiation. This work offers the opportunity of constructing efficient Z-scheme photocatalyst from wide bandgap semiconductors with full-visible light response, suppressed electron-hole recombination, and optimized redox potential.

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KW - Lavender extract

KW - Photocatalytic hydrogen production

KW - Sunlight-assisted combustion

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