Enhanced piezo-photocatalytic performance by piezoelectric and visible light photoexcitation coupling through piezoelectric Na_0.5Bi_0.5TiO₃ micron crystals

Abstract

The Na0.5Bi0.5TiO3 with wide band gap exhibits high degradation rate for RhB under ultrasonic vibration and visible light irradiation.

Engineered magnetic oxides nanoparticles as efficient sorbents for wastewater remediation: a review

“…The substitution of cations in perovskite oxides with various valences and radii of atomic causes the distortion in the perovskite structure, showing numerous physic-chemical features such as oxygen vacancies, superior thermal stability, excellent electric conduction, and active redox sites. Consequently, perovskite oxides have been observed as a blossoming concern in diverse areas, such as in solar cells, energy conversion, and water remediation (Wang et al 2021;Djellabi et al 2022;Polo-Garzon and Wu 2018;Zhang et al 2020;Liu et al 2020a;Liu et al b).…”

Ferroelectric domain formation and photocatalytic activity on porous alkali niobate piezoelectric ceramics

“…5)13) Furthermore, recent reports show a combination of piezocatalysis 14), 15) and photocatalysis improves the catalytic performance when mechanical vibration and light irradi-ation are simultaneously subjected to piezoelectric materials. 16), 17) The catalytic activity is affected by not only the presence of spontaneous polarization but also magnitude, orientation and microstructure of domain. 18)22) Introduction of a porous structure in piezoelectric materials is an effectual way to promote the orientation of domain and to increase magnitude of out-of-plane polarization.…”

Piezo-photocatalytic Activity of Bi0.5Na0.5TiO3@TiO2 Composite Catalyst with Heterojunction for Degradation of Organic Dye Molecule

“…26−28 There have been some studies about the application of BNT in piezocatalytic and piezo-photocatalytic field in recent years, but the performance of a single material is limited after all. 26,29,30 The group of Chauhan 31 has combined BNT with BiOCl to prepare the BNT-BiOCl composite and used it to degrade the dissolved organic impurities. With the catalyst, the RhB dye solution was completely degraded within 20 min under acidic conditions and visible light.…”