Abstract At present, multi-pollutant discharge from industrial sources prevails. Advanced synthetic nanomaterials can remove multiple types of pollutants, but they are costly and difficult to put into mass production. Therefore, it is necessary to explore a cost-effective material suitable for various pollutants. Magnesium hydroxide is a naturally-occurring material kinetically stabilized in nanoscale, characterized by its large specific area and considerable active reaction sites, which contributes to the viability of treatment for multiple pollutants. Moreover, its low-cost and eco-friendly properties also favor more extensive utilization in the environmental aspect. It has been proven to show excellent performance in water and air pollution control. Especially in water pollution treatment, it can not only efficiently remove a variety of low-concentration pollutants driven by diversified reaction mechanisms but also constitutes a resource recovery and material recycling route via simple regulation of structure and morphology. In this review, the preparation methods and morphological characteristics of magnesium hydroxide nanomaterials were introduced, and then its application in water pollution treatment, air pollution control was summarized. This review is of guiding significance to further promote the environmental application of magnesium hydroxide and provides a novel, efficient and easy way of managing multiple pollutants.

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氢氧化镁纳米材料的环境应用研究进展

摘要 目前，工业源多污染物排放盛行。先进的合成纳米材料可以去除多种污染物，但成本高昂且难以大规模生产。因此，有必要探索一种适用于各种污染物的具有成本效益的材料。氢氧化镁是一种天然存在的纳米级动力学稳定材料，其特点是其比表面积大和活性反应位点相当可观，有助于处理多种污染物的可行性。此外，其低成本和环保的特性也有利于在环境方面得到更广泛的利用。它已被证明在水和空气污染控制方面表现出卓越的性能。特别是在水污染治理方面，它不仅可以通过多种反应机制有效去除各种低浓度污染物，而且通过简单的结构和形态调控，构成了一条资源回收和物质循环利用的途径。本文首先介绍了氢氧化镁纳米材料的制备方法和形貌特征，并对其在水污染治理、大气污染防治中的应用进行了综述。该综述对进一步推动氢氧化镁的环境应用具有指导意义，为多种污染物的治理提供了一种新颖、高效、简便的方法。介绍了氢氧化镁纳米材料的制备方法和形貌特征，总结了其在水污染治理、大气污染治理中的应用。该综述对进一步推动氢氧化镁的环境应用具有指导意义，为多种污染物的治理提供了一种新颖、高效、简便的方法。介绍了氢氧化镁纳米材料的制备方法和形貌特征，总结了其在水污染治理、大气污染治理中的应用。该综述对进一步推动氢氧化镁的环境应用具有指导意义，为多种污染物的治理提供了一种新颖、高效、简便的方法。