An energy storage BiOBr@BiOBr heterojunction piezoelectric catalyst was prepared by homogeneous nucleation hydrothermal crystallization. The interfacial electric field enhances the polarization electric field and the piezoelectric effect of the heterojunction, the stored electron and hole concentrations are 94.23 and 86.17 μmol·g, respectively, and d is increased to 6.29 nm·V. In the dark for 50 min, the degradation rates of tetracycline, ciprofloxacin and bisphenol A caused by energy storage and positive piezoelectric effect are 63.44%, 75.95% and 73.90%, respectively, and it has good dark cycle stability and dark repair. Under the visible and near infrared light, the double localized surface plasmon resonance effects of heterojunction electron-hole storage and the enhanced series polarized electric field accelerate the migration rate of stored electrons and holes. This work provides a new idea of the preparation of around the clock energy storage piezoelectric catalytic materials from traditional energy storage bismuth-based nanomaterials with the intrinsic polarization electric field.

中文翻译：

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增强储能BiOBr@Bi4O5Br2异质结压电催化能力的双重策略：界面电场和本征极化电场

采用均相成核水热结晶法制备了储能BiOBr@BiOBr异质结压电催化剂。界面电场增强了异质结的极化电场和压电效应，存储电子和空穴浓度分别为94.23和86.17 μmol·g，d增加至6.29 nm·V。暗处50 min，储能和正压电效应对四环素、环丙沙星和双酚A的降解率分别为63.44%、75.95%和73.90%，具有良好的暗循环稳定性和暗修复能力。在可见光和近红外光下，异质结电子空穴存储的双局域表面等离子体共振效应和增强的串联极化电场加速了存储电子和空穴的迁移速率。该工作为利用传统储能铋基纳米材料制备具有本征极化电场的全天候储能压电催化材料提供了新思路。