Ag-nanoparticles-loaded Ba_0.85Ca_0.15Ti_0.9Zr_0.1O₃ for multicatalytic dye degradation

Abstract

Ba0.85Ca0.15Ti0.9Zr0.1O3 (BCZTO) ferroelectric ceramic loaded with Ag nanoparticles (NPs) was explored for its photo/piezocatalytic performance. The presence of Ag loading on BCZTO ceramic was confirmed using electron microscopes. X-ray photoelectron spectroscopy revealed the metallic chemical state of Ag NPs loaded on the surface of BCZTO ceramic. The absorbance spectrum of the Ag-loaded BCZTO sample showed a visible light absorption hump due to the phenomenon of surface plasmonic resonance. During the photocatalysis process, the ˜ 99% of rhodamine B (RB) dye was degraded in aqueous solution using the Ag-loaded BCZTO sample, showing its promising photocatalysis activity. During the piezocatalysis process, the ˜ 95% of RB dye was degraded using the Ag-loaded BCZTO sample, showing its promising piezocatalytic activity. The ·OH radical species were found responsible for the photocatalytic and piezocatalytic performance. The photo/piezocatalytic performance was found to be consistent over five cycles, indicating promising reusability of the Ag-loaded BCZTO sample.

Effect of ferroelectric polarization on piezo/photocatalysis in Ag nanoparticles loaded 0.5(Ba0.7Ca0.3)TiO3–0.5Ba(Zr0.1Ti0.9)O3 composites towards the degradation of organic pollutants

“…1,3 At present, literature is full of ultrasonic-induced dye degradation characterization using various piezoelectric materials such as BaTiO 3 , ZnO, Ba 0.85 Ca 0.15 Zr 0.1 Ti 0.9 O 3 , KNbO 3 , LiNbO 3 , Bi 2 WO 6 , etc. [4][5][6][7][8][9][10][11][12][13][14] These materials are widely explored in different nanostructures. It seems that piezocatalysis could be a potential technique for water cleaning and other catalytic applications.…”

“…Piezocatalysis still needs scientific exploration as there are multiple possibilities associated with enhancing the performance 1,3 . At present, literature is full of ultrasonic‐induced dye degradation characterization using various piezoelectric materials such as BaTiO 3 , ZnO, Ba 0.85 Ca 0.15 Zr 0.1 Ti 0.9 O 3 , KNbO 3 , LiNbO 3 , Bi 2 WO 6 , etc 4–14 . These materials are widely explored in different nanostructures.…”

Flexible Ag@LiNbO3/PVDF Composite Film for Piezocatalytic Dye/Pharmaceutical Degradation and Bacterial Disinfection

“…It is reported that LiNbO 3 has promising piezocatalytic dye degradation capability . Further, the loading of Ag noble metal nanoparticles (NPs) on ceramics can boost the electron–hole pair separation, which is desirable in catalysis reactions. , Thus, the incorporation of Ag NP-loaded LiNbO 3 into the PVDF film was expected to show superior piezocatalysis. Thus, in this article, the comparative piezocatalytic performance of PVDF, LiNbO 3 incorporated in PVDF, and Ag NP-loaded LiNbO 3 incorporated in PVDF films is reported.…”

Surface plasmon resonance‐induced Ag‐BaTiO3 composites for catalytic performance

“…However, there is not much literature in this direction. In order to get visible light active catalytic reactions, one of the approaches is surface plasmon resonance (SPR) in which metal nanoparticles absorb visible light to enhance the photocatalytic and hydrogen evaluation activity of semiconductors 27,36‐44 . For SPR, various noble metals can be used.…”