Turbulence enhanced ferroelectric-nanocrystal-based photocatalysis in urchin-like TiO₂/BaTiO₃ microspheres for hydrogen evolution

Abstract

The application of built-in electric field due to piezoelectric potential is one of the most efficient approaches for photo-induced charge transport and separation. However, the efficiency of converting mechanical energy...

High‐performance piezoelectric yarns for artificial intelligence‐enabled wearable sensing and classification

“…In particular, the single peak without a splitting feature at 2 θ of 45° further confirms the cubic‐phase BTO (Figure S5B). 43,44 In Figure 2C, a weak broad peak at 2 θ of 17.4° appeared in the pristine fiber mat, corresponding to the negligible nonpolar α phase, which became more suppressed with increasing BTO amount. The quantitative determination of the β‐phase crystallinity from the peak at 2 θ = 19.8° in Figure 2D demonstrates the increased electroactive β‐phase crystallinity with increasing BTO content up to the optimum level of 15 wt%, followed by a reduction with BTO‐20.…”

Tuning the morphology, stability and optical properties of CsSnBr3 nanocrystals through bismuth doping for visible-light-driven applications

“…Noticeably, under UV-vis illumination, P25 nanoparticles showed a signicantly higher RhB degradation rate compared to the synthesized nanocrystals, which could be due to their smaller particle size of 25 nm as well as the wide band gap of ∼3.0 eV. 79 However, this…”

“…Noticeably, under UV-vis illumination, P25 nanoparticles showed a signicantly higher RhB degradation rate compared to the synthesized nanocrystals, which could be due to their smaller particle size of 25 nm as well as the wide band gap of ∼3.0 eV. 79 However, this large band gap of P25 nanoparticles has limited their application only to the UV region (l < 400 nm), which comprises ∼4% of the solar energy. 80 Therefore, the performance of the synthesized samples and P25 was evaluated under visible irradiation which comprises 42.3% of the solar spectra, and the results are displayed in Fig.…”

Iridium-Doping as a Strategy to Realize Visible-Light Absorption and p-Type Behavior in BaTiO3

“…It is extensively utilized for photocatalytic solar fuel production, like its analogue, SrTiO 3 . , Besides being chemically stable in aqueous conditions, the energetic positions of CB and VB offer thermodynamic driving energy to drive both reduction and oxidation of water. Another unique advantage of BTO is its ferroelectric behavior (in the tetragonal phase) that can be harnessed to enhance the charge photogeneration yield. , Recently, piezo-photocatalysis − has gained significant attention, wherein BTO-based materials hold promise toward cost-effective solar fuel production under ambient conditions.…”

“…Another unique advantage of BTO is its ferroelectric behavior (in the tetragonal phase) that can be harnessed to enhance the charge photogeneration yield. 23,24 Recently, piezo-photocatalysis 25−27 has gained significant attention, wherein BTO-based materials hold promise toward cost-effective solar fuel production under ambient conditions.…”