Two−dimensional nanomaterials confined single atoms: New opportunities for environmental remediation

IF 9.9 2区 材料科学 Q1 Engineering
Yu Yin , Lei Shi , Shu Zhang , Xiaoguang Duan , Jinqiang Zhang , Hongqi Sun , Shaobin Wang
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引用次数: 10

Abstract

Two−dimensional (2D) supports confined single−atom catalysts (2D SACs) with unique geometric and electronic structures have been attractive candidates in different catalytic applications, such as energy conversion and storage, value−added chemical synthesis and environmental remediation. However, their environmental applications lack of a comprehensive summary and in−depth discussion. In this review, recent progresses in synthesis routes and advanced characterization techniques for 2D SACs are introduced, and a comprehensive discussion on their applications in environmental remediation is presented. Generally, 2D SACs can be effective in catalytic elimination of aqueous and gaseous pollutants via radical or non−radical routes and transformation of toxic pollutants into less poisonous species or highly value−added products, opening a new horizon for the contaminant treatment. In addition, in−depth reaction mechanisms and potential pathways are systematically discussed, and the relationship between the structure−performance is highlighted. Finally, several critical challenges within this field are presented, and possible directions for further explorations of 2D SACs in environmental remediation are suggested. Although the research of 2D SACs in the environmental application is still in its infancy, this review will provide a timely summary on the emerging field, and would stimulate tremendous interest for designing more attractive 2D SACs and promoting their wide applications.

限制单原子的二维纳米材料:环境修复的新机遇
具有独特几何和电子结构的二维(2D)载体受限单原子催化剂(2D SAC)在不同的催化应用中具有吸引力,如能量转换和储存、增值化学合成和环境修复。然而,它们的环境应用缺乏全面的总结和深入的讨论。本文介绍了二维SAC的合成路线和先进表征技术的最新进展,并对其在环境修复中的应用进行了全面的讨论。通常,2D SAC可以通过自由基或非自由基途径有效地催化消除水性和气态污染物,并将有毒污染物转化为毒性较小的物种或高附加值的产品,为污染物处理开辟了新的领域。此外,系统地讨论了深度反应机制和潜在途径,并强调了结构-性能之间的关系。最后,提出了该领域的几个关键挑战,并提出了在环境修复中进一步探索2D SAC的可能方向。尽管2D SAC在环境应用中的研究仍处于起步阶段,但这篇综述将及时总结这一新兴领域,并将激发人们对设计更具吸引力的2D SAC并促进其广泛应用的极大兴趣。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Nano Materials Science
Nano Materials Science Engineering-Mechanics of Materials
CiteScore
20.90
自引率
3.00%
发文量
294
审稿时长
9 weeks
期刊介绍: Nano Materials Science (NMS) is an international and interdisciplinary, open access, scholarly journal. NMS publishes peer-reviewed original articles and reviews on nanoscale material science and nanometer devices, with topics encompassing preparation and processing; high-throughput characterization; material performance evaluation and application of material characteristics such as the microstructure and properties of one-dimensional, two-dimensional, and three-dimensional nanostructured and nanofunctional materials; design, preparation, and processing techniques; and performance evaluation technology and nanometer device applications.
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