Effect of piezoelectric field on the photocatalysis of layered BiOI microspheres under ultrasonication-induced deformation

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-03-28 DOI:10.1016/j.matlet.2025.138474

Chenxia Jia , Wen Guo , Yili Chen , Peng Li , Yongming Fu , Jie Ma

引用次数: 0

Abstract

BiOI nanostructures are widely utilized as visible light photocatalysts, yet their enhanced photocatalytic performances under ultrasound remain unexplored. Herein, layered BiOI microspheres are synthesized to study their excellent piezoelectric properties by piezoresponse force microscopy and first-principles calculation. By combining visible light with ultrasonication on BiOI microspheres, the piezo-photocatalytic removal rate of methyl blue significantly increases to 98.3 % within 120 min, much higher than that of sole piezocatalysis (65.5 %). Electron spin resonance analysis reveals that the enhanced photocatalytic efficiency is attributed to the increased generation of superoxide radicals facilitated by the piezoelectric field. This research highlights the potential for leveraging piezoelectric effects to boost the performance of BiOI photocatalysts.

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive