Abstract

Metal halide perovskite photocatalysts (MHPPs) exhibit unique electronic and optical properties, making them attractive for diverse photocatalytic applications. Their exceptional properties can be tuned by adjusting the halide ion or cation size. MHPPs have shown promise in solar energy conversion, water splitting, and air purification. However, synthesis and stability challenges hinder practical applications. This comprehensive review presents the properties, applications, and challenges of MHPPs, proposing future research directions. Although dogged by many issues, MHPPs demonstrate remarkable charge separation capabilities, rendering them advantageous in many photocatalytic applications. They offer flexibility through the manipulation of elements, crystal structures, surface chemistry, and morphologies. The review also discusses Type-II, Z-scheme heterojunction, as well as the emerging S-scheme heterojunction, which is a recent, improved alternative. Consolidating current knowledge, this review serves as a valuable resource, providing insights into MHPPs’ potential and guiding further advancements. MHPPs have significant applications in water splitting, air purification, pollutant degradation, and energy conversion. Their unique properties and versatility enable tailored optimization. This overview is a crucial reference for researchers, engineers, scholars, and students, inspiring innovative and sustainable photocatalytic solutions.

摘要

金属卤化物钙钛矿光催化剂（MHPP）表现出独特的电子和光学特性，使其对各种光催化应用具有吸引力。它们的卓越性能可以通过调整卤化物离子或阳离子的大小来调节。MHPP 在太阳能转换、水分解和空气净化方面显示出了前景。然而，合成和稳定性挑战阻碍了实际应用。这篇全面的综述介绍了 MHPP 的特性、应用和挑战，并提出了未来的研究方向。尽管存在许多问题，MHPP 表现出卓越的电荷分离能力，使其在许多光催化应用中具有优势。它们通过元素、晶体结构、表面化学和形态的操纵提供灵活性。该评论还讨论了 II 型，Z 型异质结，以及新兴的 S 型异质结，这是最近改进的替代方案。这篇综述巩固了当前的知识，成为宝贵的资源，提供了对 MHPP 潜力的见解并指导进一步的进步。MHPP 在水分解、空气净化、污染物降解和能量转换方面具有重要应用。它们独特的特性和多功能性可实现量身定制的优化。该概述对于研究人员、工程师、学者和学生来说是重要的参考，激发创新和可持续的光催化解决方案。深入了解 MHPP 的潜力并指导进一步的发展。MHPP 在水分解、空气净化、污染物降解和能量转换方面具有重要应用。它们独特的特性和多功能性可实现量身定制的优化。该概述对于研究人员、工程师、学者和学生来说是重要的参考，激发创新和可持续的光催化解决方案。深入了解 MHPP 的潜力并指导进一步的发展。MHPP 在水分解、空气净化、污染物降解和能量转换方面具有重要应用。它们独特的特性和多功能性可实现量身定制的优化。该概述对于研究人员、工程师、学者和学生来说是重要的参考，激发创新和可持续的光催化解决方案。