Metal Halide Perovskite Nanostructures and Quantum Dots for Photocatalytic CO2 Reduction: Prospects and Challenges
Metal Halide Perovskite Nanostructures and Quantum Dots for Photocatalytic CO2 Reduction: Prospects and Challenges
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DOI：
10.1016/j.mtener.2022.101230
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发表时间：
2022-12
影响因子：
9.3
通讯作者：
Huilong Liu;S. Bansal
中科院分区：
文献类型：
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作者：
Huilong Liu;S. Bansal
光催化还原CO2是一种很有前途的太阳能燃料生产技术，以解决全球环境问题。金属卤化物钙钛矿（MHP）纳米晶体和量子点具有优异的特性，如高表面积与体积比，宽可见光吸收范围，可调带隙和高缺陷容限，使其成为光催化应用的理想候选者。自2017年的初步研究以来，人们一直致力于提高MHP纳米晶体的光催化CO2转化性能。本文简要介绍了MHP纳米晶的基本原理、基本性质及其在光催化还原CO2方面的研究进展。MHP纳米晶的结构修饰，然后总结了提高光催化性能，他们可以大致分为两个方向：直接调制的原始纳米晶和异质结构复合材料的建设。随后，我们特别强调的问题，阻碍MHP纳米晶体为基础的电子束从实际应用中，具体地说，反应系统/平台和铅（Pb）的毒性。最新的突破性进展，包括新型光催化系统/平台的开发和无铅MHP光催化剂的构建进行了讨论。最后，我们强调了MHP纳米晶体的光催化CO2还原的前景。
Photocatalytic CO2reduction is a promising technology for production of solar fuels to address global environmental concerns. Metal halide perovskite (MHP) nanocrystals and quantum dots possess excellent features like high surface-to-volume ratio, broad visible-light absorption range, tunable bandgap, and high defect tolerance, making them ideal candidates for photocatalytic applications. Since the initial studies in 2017, numerous efforts have been devoted to boost the performance of MHP nanocrystals for photocatalytic CO2conversion. In this review, we briefly state the fundamentals, basic properties, and recent progress in the use of MHP nanocrystals for photocatalytic CO2reduction. Structural modifications of MHP nanocrystals are then summarized for enhanced photocatalytic performance, and they can be roughly divided into two directions: direct modulation of the pristine nanocrystals and construction of heterostructure composites. Subsequently, we lay particular emphasis on the issues obstructing MHP nanocrystals based photocatalysis from practical application, specifically, reaction systems/platforms and the toxicity of lead (Pb). The latest groundbreaking progress including the development of novel photocatalytic system/platform and the construction of lead-free MHP nanocrystal photocatalysts are then discussed. Finally, we highlight the outlook of the MHP nanocrystals towards photocatalytic CO2reduction.