Photocatalysis technology with merits of mild reaction conditions and minimal secondary pollution had shown extensive applications potential in the domains of energy and environment. Nevertheless, the rapid recombination of photogenerated electron-hole pairs critically hinders the efficiency of photocatalysis. Very recently, the ferroelectric catalysts with merits of spontaneous polarization hold great promise in the realm of applications for converting energy including modulated photocatalysis to break through traditional energy efficiency bottlenecks. However, ferroelectric materials still suffer from limitations such as low Curie temperatures, narrow light absorption wavelength ranges, and challenges in polarization, significantly impeding their photocatalytic practicality. To further promote the performance of ferroelectric catalysts, the strategy of incorporating noble metals such as gold, silver, and platinum into ferroelectric materials was proposed and highlighted. This review aims to outline the mechanisms of noble metal-enhanced ferroelectric materials towards various specific high-end applications. Noble metals successfully address core challenges of the durable polarization of ferroelectric by inducing subtle lattice distortions and electronic structure modulations. These alterations increase internal energy, allowing the material to maintain ferroelectric characteristics at higher temperatures and promoting the formation of strong polarization states, crucial for high-performance ferroelectrics. Additionally, noble metals exhibit a localized surface plasmon resonance (LSPR) effect, leading to intense absorption in the visible or near-infrared region for boosted photocatalysis. By clarifying the fundamental concept and characterization methods of noble metal reinforced ferroelectricity, this review proposed the challenges and future trends of metal-enhanced ferroelectric photocatalysis with its untapped potential in. The advancement of this field holds the promise of providing new possibilities in breakthrough the limits of efficiency and surface polarization state of photocatalysis for sustainable energy and environmental conservation.

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贵金属增强铁电自发极化光催化机理

光催化技术具有反应条件温和、二次污染极小的优点，在能源和环境领域显示出广泛的应用潜力。然而，光生电子-空穴对的快速复合严重阻碍了光催化的效率。近年来，具有自发极化优点的铁电催化剂在能量转换应用领域具有广阔的前景，包括调制光催化，以突破传统的能源效率瓶颈。然而，铁电材料仍然受到居里温度低、光吸收波长范围窄和极化挑战等限制，严重阻碍了其光催化实用性。为了进一步提升铁电催化剂的性能，提出并强调了将金、银、铂等贵金属掺入铁电材料中的策略。本综述旨在概述贵金属增强铁电材料在各种特定高端应用中的机制。贵金属通过诱导微妙的晶格畸变和电子结构调制，成功解决了铁电体持久极化的核心挑战。这些变化增加了内能，使材料能够在较高温度下保持铁电特性，并促进强极化态的形成，这对于高性能铁电体至关重要。此外，贵金属表现出局域表面等离子体共振（LSPR）效应，导致可见光或近红外区域的强烈吸收，从而增强光催化作用。本文通过阐明贵金属增强铁电性的基本概念和表征方法，提出了金属增强铁电光催化的挑战和未来发展趋势，以及其尚未开发的潜力。该领域的进步有望为突破极限提供新的可能性。光催化效率和表面偏振态的可持续能源和环境保护。