State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China.
State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China.
J Environ Sci (China). 2025 Mar;149:209-220. doi: 10.1016/j.jes.2024.01.040. Epub 2024 Feb 10.
Monolithic aerogels are promising candidates for use in atmospheric environmental purification due to their structural advantages, such as fine building block size together with high specific surface area, abundant pore structure, etc. Additionally, monolithic aerogels possess a unique monolithic macrostructure that sets them apart from aerogel powders and nanoparticles in practical environmental clean-up applications. This review delves into the available synthesis strategies and atmospheric environmental applications of monolithic aerogels, covering types of monolithic aerogels including SiO, graphene, metal oxides and their combinations, along with their preparation methods. In particular, recent developments for VOC adsorption, CO capture, catalytic oxidation of VOCs and catalytic reduction of CO are highlighted. Finally, challenges and future opportunities for monolithic aerogels in the atmospheric environmental purification field are proposed. This review provides valuable insights for designing and utilizing monolithic aerogel-based functional materials.
整体气凝胶由于其结构优势，如精细的建筑块尺寸以及高比表面积、丰富的孔结构等，是用于大气环境净化的有前途的候选材料。此外，整体气凝胶具有独特的整体宏观结构，使其在实际的环境清理应用中与气凝胶粉末和纳米颗粒区分开来。本综述深入探讨了整体气凝胶的可用合成策略和大气环境应用，涵盖了包括 SiO、石墨烯、金属氧化物及其组合在内的多种整体气凝胶的类型，以及它们的制备方法。特别是，重点介绍了最近在 VOC 吸附、CO 捕获、VOCs 催化氧化和 CO 催化还原方面的进展。最后，提出了整体气凝胶在大气环境净化领域面临的挑战和未来机遇。本综述为设计和利用基于整体气凝胶的功能材料提供了有价值的见解。
