Piezocatalytic technology represents an innovative form of advanced oxidation technology for degradation of organic pollutants. Piezoelectric catalysis technology combines electrochemistry and piezoelectric properties, and promotes charge transfer through a piezoelectric field, thus promoting catalytic reactions. This study employed a one-step microwave method to fabricate an α-Bi₂O₃/BiO₂ heterojunction with a narrow bandgap. This catalyst exhibited a high efficiency in the degradation of methyl orange dye, achieving a removal rate of 93% in 60 minutes, with a reaction rate constant of 0.0324 min⁻¹. The investigation of the catalytic mechanism demonstrates that the construction of the α-Bi₂O₃/BiO₂ heterojunction facilitates the separation of charge carriers, increases the degree of polarization, and consequently enhances the efficiency of piezoelectric catalytic degradation. This work opens the way for the design and development of high-performance piezoelectric catalysts.

中文翻译：

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轻松合成 α-Bi2O3/BiO2 异质结，用于增强染料废水的压电催化降解


压电催化技术代表了用于降解有机污染物的高级氧化技术的创新形式。压电催化技术结合了电化学和压电特性，通过压电场促进电荷转移，从而促进催化反应。本研究采用一步微波法制备了窄带隙的α-Bi ₂ O ₃ /BiO ₂ 异质结。该催化剂对甲基橙染料的降解效率很高，60 min 去除率达到 93%，反应速率常数为 0.0324 min ⁻¹ 。催化机理的研究表明，α-Bi ₂ O ₃ /BiO ₂ 异质结的构建有利于载流子的分离，提高了催化程度极化，从而提高压电催化降解的效率。这项工作为高性能压电催化剂的设计和开发开辟了道路。