Hezam, Abdo and Wang, Jingwei and Drmosh, Q. A. and Karthik, P. and Bajiri, Mohammed Abdullah and Namratha, K. and Zare, Mina and Lakshmeesha, T. R. and Shivanna, Srikantaswamy and Cheng, Chun and Neppolian, Bernaurdshaw and Byrappa, K. (2021) Rational construction of plasmonic Z-scheme Ag-ZnO-CeO2 heterostructures for highly enhanced solar photocatalytic H-2 evolution. Applied Surface Science, 541.
Full text not available from this repository. (Request a copy)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 H-2 production. This contribution combines surface plasmon resonance and Z-scheme charge transport in a single photocatalyst (Ag ZnO CeO2 hetemstructure) aiming to improve its performance for photocatalytic H-2 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 H-2 production (18345 mu mol 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 electronhole recombination, and optimized redox potential.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Surface plasmon resonance; Z-scheme charge migration; Photocatalytic hydrogen production; Sunlight-assisted combustion; Lavender extract; High aspect ratio |
| Subjects: | D Physical Science > Material Science |
| Divisions: | Department of > Material Science |
| Depositing User: | Mr Umendra uom |
| Date Deposited: | 02 Mar 2022 10:35 |
| Last Modified: | 02 Mar 2022 10:35 |
| URI: | http://eprints.uni-mysore.ac.in/id/eprint/17269 |
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