ArticleScientific reports2026
Interfacial Schottky junction induced enhanced piezocatalytic activity.
Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The deposition of metal onto a semiconductor leads to the creation of a Schottky junction, offering an effective route for inducing polarization. The present study utilizes this phenomenon as a strategic approach for increasing the piezocatalytic activity for pollutant removal applications. Gold (Au) and silver (Ag) were introduced on the surface of the plain BaTiO₃ (BT) ceramic pellet to demonstrate the effectiveness of the mentioned phenomenon. The fabricated catalysts, BT, Ag-BT, and Au-BT, were evaluated for the piezocatalytic activity for degrading the representative pollutant, methylene blue (MB). Piezocatalysis under mechanical vibrations showed that Au-BT achieved the highest MB dye degradation (89%), followed by Ag-BT (75%) and BT (47%), with Au-BT and Ag-BT exhibiting ~ 1.9- and ~ 1.6-fold improvements over plain BT within 3 h. The increment in degradation piezocatalytic activity is attributed to the enhanced built-in polarization due to metal-semiconductor interface development. Overall, the present study highlights a simple modification strategy for interfacial polarization, providing an effective alternative to chemical approaches for enhancing the piezocatalytic activity of the catalyst.
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