Micromotors possessing a self-propulsion system have been proposed as a new generation of advanced materials for various environmental applications. Due to their actively moving properties, micromotors can significantly improve the operational efficiency of typical environmental remediation (e.g., adsorption and photocatalysis) as well as the dynamic sensing of typical pollutants. The cargo or propellant-loading capability of micromotors can be enhanced by increasing the specific surface area. In this regard, highly porous metal–organic frameworks (MOFs) can be ideal candidates for micromotors with efficient autonomous motion capabilities. Hence, integration of MOFs into micromotors can provide a multitude of new opportunities for specific but uncharacterized applications. However, MOF micromotors remain in their infancy despite exploration on a wide variety. The present study aimed to briefly review the few cases of MOF micromotors reported in the literature with regard to environmental applications. The broader objective was to highlight the remarkable potential of MOF micromotor systems to motivate and increase new research at the intersection of environmental and material engineering.

中文翻译：

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金属有机框架微电机：环境应用前景

具有自推进系统的微型电机已被提议作为用于各种环境应用的新一代先进材料。由于其主动运动的特性，微电机可以显着提高典型环境修复的运行效率（例如、吸附和光催化）以及典型污染物的动态传感。通过增加比表面积可以提高微型马达的载货能力或推进剂装载能力。在这方面，高度多孔的金属有机框架（MOF）可以成为具有高效自主运动能力的微型电机的理想候选者。因此，将 MOF 集成到微电机中可以为特定但未表征的应用提供大量新机会。然而，MOF 微电机尽管进行了广泛的探索，但仍处于起步阶段。本研究旨在简要回顾文献中报道的有关环境应用的少数 MOF 微电机案例。