Preparation of Aerogels and Its Applications in Environmental Protection
Aerogels are a kind of nano-porous materials composed of nano-particles aggregated with each other,and these porous materials usually possess appealing attributes such as high porosity,low density,high specific surface area and strong adsorption.They are widely used as adsorbents,thermal insulation materials,and catalyst carriers in biomedicine,environmental protection,and aerospace.Among them,aer-ogels are used in environmental protection to remove harmful wastes like organic dyes,heavy metal ions and adsorption of CO2 in the air.In this review,recent progress in inorganic aerogels,carbon aerogels,and organic aerogels for environmental protection is briefly summarized.