气凝胶用于室内空气污染物去除研究进展

As special nanoporous materials with consecutive 3D network, aerogels have many unique properties, such as low density, high surface area, large pore volume and porosity, leading to their high performances and promising applications in aerospace, military, industrial production, green building, new energy and biological medicine, etc. Large porosity and penetrating nanopore of aerogels provide good gas diffusion capacity and enough space for the retention of adsorbates, high specific surface area of aerogels favours the gas-phase interaction. Therefore, aerogels are ideal mediums for the removal of indoor air pollutants, such as airborne particles, VOCs, formaldehyde and CO₂. In this paper, recent advances on the removal of these indoor air pollutants using aerogels were reviewed.