Piezo-phototronic and plasmonic effect coupled Ag-NaNbO3 nanocomposite for enhanced photocatalytic and photoelectrochemical water splitting activity

Dheeraj Kumar, Surbhi Sharma and Neeraj Khare

Renewable Energy, 2021, vol. 163, issue C, 1569-1579

Abstract: Silver (Ag) nanoparticles decorated NaNbO3 nanorods (Ag-NaNbO3) based nanocomposite have been successfully synthesized by simple chemical solution method with the aim to couple the plasmonic and piezo-phototronic effect. The Ag-NaNbO3 nanocomposite showed much enhanced photocatalytic and photoelectrochemical water splitting properties as compared to bare NaNbO3. A ∼10 fold enhancement in the photodecomposition of organic MB dye and a ∼9 fold increment in the photocurrent density of photoelectrochemical water splitting was observed as compared to bare NaNbO3, which has been attributed to the combined plasmonic and piezo-phototronic effect. The plasmonic effect due to the presence of Ag nanoparticles on the NaNbO3 surface resulted in enhanced absorption of visible light and piezo-photoelectric effect resulted in better separation of the photogenerated charges due to the built-in electric field. This approach demonstrates a novel strategy for enhancing the performance of silver decorated semiconducting/piezoelectric material for achieving efficient photocatalytic dye degradation and PEC water splitting.

Keywords: Ag-NaNbO3; Plasmonic effect; Piezo-phototronic effect; Piezo-photocatalytic effect; PEC Water splitting (search for similar items in EconPapers)
Date: 2021
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Citations: View citations in EconPapers (3)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:163:y:2021:i:c:p:1569-1579

DOI: 10.1016/j.renene.2020.09.132

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