Chirality-dependent photocatalysis is an emerging domain that leverages unique chiral light–matter interactions for enabling asymmetric catalysis driven by spin polarization induced by circularly polarized light selection. Herein, we synthesize chiral inorganic polar BaTiO₃/BaCO₃ nanohybrids for asymmetric photocatalysis via a hydrothermal method employing chiral glucose as a structural inducer. When excited by opposite circularly polarized light, the same material exhibits significant asymmetric catalysis, while enantiomers present an opposite polarization preference. More importantly, the preferred circularly polarized light undergoes reversal with reversal of the CD signal. Systematic experimental results demonstrate that more photogenerated carriers are generated in chiral semiconductors under suitable circularly polarized light irradiation, including more spin-polarized electrons, which inhibits the recombination of electron–hole pairs and promotes the activation of oxygen molecules into reactive oxygen species, thus inducing this asymmetric photocatalytic feature. This study provides valuable insights for the development of highly efficient polarization-sensitive chiral perovskite nanostructures as promising candidates for next-generation, multifunctional chiral device applications.

中文翻译：

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用于不对称光催化的手性无机极性 BaTiO3/BaCO3 纳米杂化物与自旋选择


手性依赖性光催化是一个新兴领域，它利用独特的手性光-物质相互作用来实现由圆偏振光选择诱导的自旋偏振驱动的不对称催化。在此，我们利用手性葡萄糖作为结构诱导剂，通过水热法合成了手性无机极性 BaTiO₃/BaCO₃ 纳米杂化物，用于不对称光催化。当被相反的圆偏振光激发时，相同的材料表现出明显的不对称催化，而对映异构体表现出相反的偏振偏好。更重要的是，优选的圆偏振光随着 CD 信号的反转而发生反转。系统实验结果表明，在合适的圆偏振光照射下，手性半导体中产生了更多的光生载流子，包括更多的自旋极化电子，这抑制了电子-空穴对的复合，促进了氧分子活化为活性氧，从而诱导了这种不对称的光催化特性。本研究为开发高效的极化敏感手性钙钛矿纳米结构提供了有价值的见解，作为下一代多功能手性器件应用的有前途的候选者。